Voltage converter and three-phase voltage converter
阅读说明:本技术 电压变换装置和三相电压变换装置 (Voltage converter and three-phase voltage converter ) 是由 黄民民 于 2020-06-08 设计创作,主要内容包括:本公开关于一种电压变换装置和三相电压变换装置,属于电力电子技术领域,该装置包括:至少一个电压输入端和电压输出端;至少一个主磁感应组件,均具有第一缺口;至少一个副磁感应组件,具有与第一缺口对应的第二缺口;与至少一个电压输入端相连的至少一个输入线圈;与电压输出端相连的输出线圈;设置在第一缺口和第二缺口之间可移动的至少一个磁感应调节组件,用于对电压输出端的电压进行调节。由此,本公开通过在第一缺口和第二缺口之间设置可移动的磁感应调节组件改变磁通路来实现对输出、输入线圈耦合度的调节,从而实现输出电压的幅值和/或相位的在线无级调节,且结构简单,避免了更改连接线的复杂操作。(The utility model discloses a voltage conversion equipment and three-phase voltage conversion equipment belongs to power electronics technical field, and the device includes: at least one voltage input and a voltage output; at least one main magnetic induction component, each of which is provided with a first gap; at least one secondary magnetic induction component which is provided with a second gap corresponding to the first gap; at least one input coil connected to at least one voltage input; an output coil connected to the voltage output terminal; the at least one magnetic induction adjusting component is movably arranged between the first notch and the second notch and used for adjusting the voltage of the voltage output end. Therefore, the movable magnetic induction adjusting assembly is arranged between the first notch and the second notch to change the magnetic path to adjust the coupling degree of the output coil and the input coil, so that the amplitude and/or the phase of the output voltage can be adjusted in an online stepless mode, the structure is simple, and the complex operation of changing a connecting line is avoided.)
1. A voltage conversion device, characterized by comprising:
at least one voltage input and a voltage output;
the magnetic induction device comprises at least one main magnetic induction component, at least one magnetic induction component and a magnetic control component, wherein the at least one main magnetic induction component is provided with a first notch which penetrates through one side corresponding to the main magnetic induction component to block a magnetic induction path formed by the main magnetic induction component;
the at least one auxiliary magnetic induction assembly is provided with a second notch corresponding to the first notch, and the second notch penetrates through one side corresponding to the auxiliary magnetic induction assembly to block a magnetic induction passage formed by the auxiliary magnetic induction assembly;
the at least one input coil is connected with the at least one voltage input end, and is wound at the first ends of the at least one main magnetic induction component and the at least one auxiliary magnetic induction component;
the output coil is connected with the voltage output end and is wound at the second end of the at least one main magnetic induction component; and
the at least one magnetic induction adjusting component is arranged between the first notch and the second notch and can move, and is used for adjusting the voltage of the voltage output end.
2. The voltage conversion device as claimed in claim 1, wherein said at least one voltage input terminal comprises a first voltage input terminal, a second voltage input terminal and a third voltage input terminal, said at least one primary magnetic induction component comprises a first primary magnetic induction component, a second primary magnetic induction component and a third primary magnetic induction component, said at least one secondary magnetic induction component comprises a first secondary magnetic induction component, a second secondary magnetic induction component and a third secondary magnetic induction component, and said at least one magnetic induction regulation component comprises a first magnetic induction regulation component and a second magnetic induction regulation component and a third magnetic induction regulation component.
3. The voltage converting device as recited in claim 2, wherein said first main magnetic induction component, said second main magnetic induction component, said third main magnetic induction component and said first sub magnetic induction component, said sub magnetic induction component and said third sub magnetic induction component respectively comprise a first induction area and a second induction area, wherein the first sensing region is disposed at the first end of the first main magnetic sensing component, the second main magnetic sensing component, the third main magnetic sensing component, the first sub magnetic sensing component, the second sub magnetic sensing component, and the third sub magnetic sensing component, the second induction zone is arranged at the second ends of the first main magnetic induction component, the second main magnetic induction component, the third main magnetic induction component, the first auxiliary magnetic induction component, the second auxiliary magnetic induction component and the third auxiliary magnetic induction component.
4. The voltage converting device as claimed in claim 3, wherein said first sub-magnetic induction element is disposed inside said first main magnetic induction element, said second sub-magnetic induction element is disposed inside said second main magnetic induction element, and said third sub-magnetic induction element is disposed inside said third main magnetic induction element.
5. The voltage converting device as claimed in claim 4, wherein the first sensing region of the first sub-magnetic induction component is adjacent to the first sensing region of the first main magnetic induction component, the first sensing region of the second sub-magnetic induction component is adjacent to the first sensing region of the second main magnetic induction component, the first sensing region of the third sub-magnetic induction component is adjacent to the first sensing region of the third main magnetic induction component, wherein the first input coil is wound around the first sensing regions of the first main magnetic induction component and the first sub-magnetic induction component, the second input coil is wound around the first sensing regions of the second main magnetic induction component and the second sub-magnetic induction component, and the third input coil is wound around the first sensing regions of the third main magnetic induction component and the third sub-magnetic induction component.
6. The voltage conversion device as claimed in claim 3, wherein said first main magnetic induction component, said second main magnetic induction component and said third main magnetic induction component are disposed in a stacked manner, said first sub magnetic induction component, said second sub magnetic induction component and said third sub magnetic induction component are disposed in a stacked manner, and vertical projections of said first main magnetic induction component, said second main magnetic induction component and said third main magnetic induction component are coincident with each other, and vertical projections of said first sub magnetic induction component, said second sub magnetic induction component and said third sub magnetic induction component are coincident with each other.
7. The voltage converting device as claimed in claim 3, wherein said output coil is wound around a second induction region of said first main magnetic induction component, said second main magnetic induction component and said third main magnetic induction component.
8. The voltage conversion device as claimed in claim 3, wherein the second sensing regions of the first, second and third secondary magnetic induction elements are suspended.
9. The voltage conversion apparatus according to claim 2, wherein,
when the first magnetic induction adjusting assembly, the second magnetic induction adjusting assembly and the third magnetic induction adjusting assembly are located at the first notch, magnetic induction paths of the first main magnetic induction assembly, the second main magnetic induction assembly and the third main magnetic induction assembly are conducted, and magnetic induction paths of the first auxiliary magnetic induction assembly, the second auxiliary magnetic induction assembly and the third auxiliary magnetic induction assembly are closed; and
when the first magnetic induction adjusting component, the second magnetic induction adjusting component and the third magnetic induction adjusting component are located at the second notch, magnetic induction paths of the first main magnetic induction component, the second main magnetic induction component and the third main magnetic induction component are closed, and magnetic induction paths of the first auxiliary magnetic induction component, the second auxiliary magnetic induction component and the third auxiliary magnetic induction component are conducted.
10. A three-phase voltage conversion device, comprising:
the first voltage converting device, the second voltage converting device, and the third voltage converting device according to any one of claims 1 to 9, wherein at least one voltage input terminal of the first voltage converting device, the second voltage converting device, and the third voltage converting device is the same, and the first output voltage, the second output voltage, and the third output voltage of the first voltage converting device, the second voltage converting device, and the third voltage converting device are three-phase voltages.
Technical Field
The present disclosure relates to the field of power electronics technologies, and in particular, to a voltage conversion device and a three-phase voltage conversion device.
Background
Alternating current has been the most important and irreplaceable form of energy since its advent, where amplitude, phase, frequency are the three elements that define alternating current. In a broad sense, a device that changes one or more elements of an output voltage given an input may be referred to as a voltage converting device or a voltage transforming device. At present, a voltage transformation device widely exists in each link of sending, transmitting, transforming, matching and using of alternating current and is used for realizing conversion among different voltage amplitudes, phases and frequencies. The transformation ratio is regulated to stabilize the output voltage according to the voltage and the load condition of a power grid in a transformation and distribution link, and the voltage transformation ratio is regulated to obtain different voltages to meet the power consumption requirements of equipment in a power consumption link due to different scenes and purposes. Therefore, online stepless voltage regulation is a widely-existing urgent need.
Disclosure of Invention
The present disclosure provides a voltage conversion device and a three-phase voltage conversion device to at least solve the problems in the related art that continuous adjustment of phase and amplitude cannot be realized, wiring needs to be changed, and online adjustment cannot be realized. The technical scheme of the disclosure is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a voltage conversion device including: at least one voltage input and a voltage output; the magnetic induction device comprises at least one main magnetic induction component, at least one magnetic induction component and a magnetic control component, wherein the at least one main magnetic induction component is provided with a first notch which penetrates through one side corresponding to the main magnetic induction component to block a magnetic induction path formed by the main magnetic induction component; the at least one auxiliary magnetic induction assembly is provided with a second notch corresponding to the first notch, and the second notch penetrates through one side corresponding to the auxiliary magnetic induction assembly to block a magnetic induction passage formed by the auxiliary magnetic induction assembly; the at least one input coil is connected with the at least one voltage input end, and is wound at the first ends of the at least one main magnetic induction component and the at least one auxiliary magnetic induction component; the output coil is connected with the voltage output end and is wound at the second end of the at least one main magnetic induction component; and at least one magnetic induction adjusting component which is arranged between the first notch and the second notch and can move and is used for adjusting the voltage of the voltage output end.
According to a second aspect of the embodiments of the present disclosure, there is provided a three-phase voltage conversion apparatus including: the first voltage converting device, the second voltage converting device and the third voltage converting device as described above, wherein at least one voltage input end of the first voltage converting device, the second voltage converting device and the third voltage converting device is the same, and the first output voltage, the second output voltage and the third output voltage of the first voltage converting device, the second voltage converting device and the third voltage converting device are three-phase voltages.
The technical scheme provided by the embodiment of the disclosure at least brings the following beneficial effects: the first notch and the second notch are arranged on at least one main magnetic induction component, the movable at least one magnetic induction adjusting component is arranged between the first notch and the second notch, and the amplitude and/or the phase of the voltage output end can be adjusted in an online and stepless mode by adjusting the position of the at least one magnetic induction adjusting component on the first notch and the position of the at least one magnetic induction adjusting component on the second notch.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure and are not to be construed as limiting the disclosure.
Fig. 1 is an expanded structural schematic diagram illustrating a voltage conversion device according to an exemplary embodiment.
Fig. 2 is a schematic diagram illustrating a structure of a voltage conversion device according to an exemplary embodiment.
Fig. 3 is a diagram illustrating a state of a voltage conversion device for adjusting a phase of an output voltage according to an exemplary embodiment.
Fig. 4 is a diagram illustrating a state of another voltage conversion device for adjusting the phase of an output voltage according to an exemplary embodiment.
Fig. 5 is a schematic diagram illustrating a state of a voltage conversion device adjusting the phase and amplitude of an output voltage according to an exemplary embodiment.
Fig. 6 is a vector diagram illustrating a voltage transformation according to an exemplary embodiment.
Fig. 7 is a layout diagram illustrating a voltage conversion device according to an exemplary embodiment.
Fig. 8 is a side cross-sectional view of a voltage conversion device shown in accordance with an exemplary embodiment.
Fig. 9 is a vector diagram illustrating another voltage transformation according to an example embodiment.
Fig. 10 is a diagram illustrating a state of a voltage converting device adjusting the magnitude of an output voltage according to an exemplary embodiment.
Fig. 11 is a block schematic diagram illustrating a three-phase voltage conversion device according to an exemplary embodiment.
Detailed Description
In order to make the technical solutions of the present disclosure better understood by those of ordinary skill in the art, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Fig. 1 is an expanded structural schematic diagram illustrating a voltage conversion device according to an exemplary embodiment. As shown in fig. 1, the voltage conversion device may include: at least one voltage input terminal, a voltage output terminal Uo, at least one primary magnetic induction component 100, at least one secondary magnetic induction component 200, at least one input coil 300 connected with the at least one voltage input terminal, an
In one embodiment of the present disclosure, the voltage conversion device may be a three-phase to single-phase voltage conversion device, wherein the at least one voltage input terminal may include a first voltage input terminal (a-phase voltage input terminal), a second voltage input terminal (B-phase voltage input terminal), and a third voltage input terminal (C-phase voltage input terminal), which are respectively denoted by Ua, Ub, and Uc. And the output ends of the first voltage output, the second voltage output and the third voltage output which correspond to the first voltage input end, the second voltage input end and the third voltage input end and are coupled and superposed are used as voltage output ends and are expressed by UO. Note that, in order to facilitate description of the structure of the voltage converting device of the present disclosure, the following description is made with reference to fig. 2.
In one embodiment of the present disclosure, the at least one main magnetic induction assembly 100 may include: the first main
At least one input coil 300 may be wound around the first ends of the at least one primary magnetic induction assembly 100 and the at least one secondary magnetic induction assembly 200. Wherein the at least one input coil 300 may include: the
In one embodiment of the present disclosure, the
The at least one magnetic induction adjusting assembly 500 is configured to adjust an amplitude and/or a phase of a voltage at the voltage output terminal, wherein the at least one magnetic induction adjusting assembly 500 may include: a first magnetic
Specifically, the at least one magnetic induction adjustment assembly 500 moves between the first and second notches, when the first magnetic
In an example of the present disclosure, since the magnetic induction adjusting component moves from the first notch to the second notch, the magnetic induction path of the main magnetic induction component is in a disconnected state, and the magnetic induction path of the auxiliary magnetic induction component is complete, at this time, the magnetic induction path of the auxiliary magnetic induction component can have a forced shunt to the magnetic induction path of the main magnetic induction component, resulting in that all the magnetic induction lines are switched to the auxiliary magnetic induction component. For example, the input voltage may generate 100 magnetic induction lines (for convenience of description, for example), if the magnetic induction adjusting component moves to the first notch, the magnetic induction path of the main magnetic induction component conducts 100 magnetic induction lines to the output coil, the magnetic induction path of the auxiliary magnetic induction component is disconnected (forcibly shunted to the main magnetic induction component), and no magnetic induction line passes through; on the contrary, the same principle is that if the magnetic induction adjusting assembly moves to the second notch, the main magnetic induction assembly is disconnected, and the 100 magnetic induction lines pass through the auxiliary magnetic induction assembly. If the magnetic induction adjusting assembly moves to the middle position of the first notch and the second notch, 50 magnetic induction lines are respectively arranged in the magnetic induction path of the main magnetic induction assembly and the magnetic induction path of the auxiliary magnetic induction assembly, and the auxiliary magnetic induction assembly is not connected with the output coil, so that the 50 magnetic induction lines are conducted to the output coil through the main magnetic induction assembly (equivalent to the amplitude value is adjusted). Certainly, the number of the magnetic induction lines which are respectively passed through by the magnetic induction path of the main magnetic induction component and the magnetic induction path of the auxiliary magnetic induction component is related to the positions of the magnetic induction adjusting component which are positioned at the first notch and the second notch, when the magnetic induction adjusting component is mainly positioned at the first notch, the number of the magnetic induction lines which are arranged on the magnetic induction path of the main magnetic induction component is more than that of the magnetic induction lines which are arranged on the magnetic induction path of the auxiliary magnetic induction component, and vice versa.
The following illustrates how the amplitude and/or phase of the voltage at the voltage output is adjusted depending on the position of the magnetic induction adjustment assembly in the first and second notches.
As an example of the present disclosure, as shown in fig. 3, when the first magnetic
It should be noted that there may be other cases where the voltage at the voltage output end is adjusted according to the magnetic fluxes generated by the two main magnetic induction components. For example: the
As another example of the present disclosure, as shown in fig. 4, when the first magnetic induction adjusting
It should be noted that there may be other cases where the voltage at the voltage output end is adjusted only by one main magnetic induction component. For example: the second magnetic
As another example of the present disclosure, as shown in fig. 5, when the first magnetic
It should be noted that when the magnetic induction adjusting assembly is located between the first notch and the second notch, other situations may also be included, the principle of which is the same as that in the above-mentioned embodiment, and will not be illustrated here.
For the sake of understanding of the above-mentioned embodiments of the present disclosure, assuming that the turn ratio of the output coil/input coil is K, the magnetic induction adjusting assembly is represented as 0 when moving to the position of the second notch, and is represented as 1 when moving to the position of the first notch, and then the phase and amplitude of the obtained output voltage are shown in table 1.
TABLE 1
As can be seen from table 1, the magnitude of the output voltage, including the amplitude and the phase of the output voltage, can be adjusted by adjusting the positions of the magnetic induction adjusting assemblies in the first notch and the second notch. For example, when the magnetic induction adjusting component in phase a is located at 0-1, and the magnetic induction adjusting component in phase B is located at 0-1, the amplitude of the obtained output voltage is the vector sum of the two, the magnitude is between 0-K, and the phase is between 0-120 °, as shown in fig. 6.
That is, by positioning one of the first magnetic
Therefore, the gaps are formed in the main magnetic induction assembly and the auxiliary magnetic induction assembly, and the magnetic induction adjusting assembly moves among the gaps, so that the coupling degree of three-phase input and output is changed, continuous and stepless adjustment of the phase and/or amplitude of output voltage is realized, and no electric operation is involved in the adjusting process, so that electrified online adjustment can be realized, wiring does not need to be changed, and the operation is simple and easy to realize.
In order to realize the coupling degree between the three-phase input and the three-phase output, the arrangement relationship between the main magnetic induction component and the auxiliary magnetic induction component needs to be considered. In an embodiment of the present disclosure, the first main
Further, in an embodiment of the present disclosure, as shown in fig. 1 to 5, the first
In an embodiment of the present disclosure, the first main
Since the first sub
Therefore, the first auxiliary magnetic induction component, the second auxiliary magnetic induction component and the third auxiliary magnetic induction component are respectively sleeved in the corresponding first main magnetic induction component, the second main magnetic induction component and the third main magnetic induction component, and the first input winding, the second input winding and the third input winding are respectively wound in the corresponding first induction area of the first main magnetic induction component, the second main magnetic induction component, the third main magnetic induction component, the first auxiliary magnetic induction component, the second auxiliary magnetic induction component and the third auxiliary magnetic induction component, so that the magnetic induction lines generated by the main magnetic induction component and the auxiliary magnetic induction components can have the function of forced shunting, the output winding is wound in the second induction area of the main magnetic induction component, and the second induction area of the auxiliary magnetic induction component is arranged in a suspension way, so that the magnetic induction lines passing through the auxiliary magnetic induction components are directly discharged without passing through the output coil, therefore, the coupling degree of the three-phase alternating current can be changed.
It should be noted that, for convenience of describing the embodiments of the present disclosure, fig. 1 to 4 are layered diagrams of a voltage converting device, which include a first main magnetic induction component, a second main magnetic induction component, a third main magnetic induction component and a first sub magnetic induction component. The second pair of magnetic induction components and the third pair of magnetic induction components are placed on the same plane, and in fact, in a front view, only the first main magnetic induction component and the first pair of magnetic induction components can be seen. The structure of the voltage converting device of the present disclosure is explained below with reference to fig. 7 and 8.
In an embodiment of the present disclosure, the first main
In combination with the structure of the voltage conversion device, how to form an adjustable magnetic induction path is described in detail below, so that the coupling degree of the output coil and the input coil can be adjusted, and the amplitude and the phase of the output voltage can be adjusted on line in a stepless manner.
In an embodiment of the present disclosure, when the first magnetic
In one embodiment of the present disclosure, the first notch and the second notch are disposed adjacent to each other, which facilitates movement of the magnetic induction adjustment assembly between the first notch and the second notch.
Specifically, when the first magnetic
For example, still referring to the embodiment assuming that the turn ratio of the output coil/input coil is K and fig. 6, when the first magnetic
As another embodiment, as shown in fig. 9, when the first magnetic
In order to realize that only the amplitude of the voltage at the voltage output terminal is adjusted, the following explanation is made with reference to fig. 10.
As an embodiment of the present disclosure, when the first portions of the first, second, and third magnetic
It should be noted that the magnitude of the amplitude is determined according to the ratio between the first portion and the second portion, and the larger the ratio of the first portion is, the larger the obtained amplitude is, and the smaller the ratio of the first portion is, the smaller the obtained amplitude is.
In order to adjust only the phase of the voltage at the voltage output terminal, in one embodiment of the present disclosure, one of the first magnetic
Taking the example shown in fig. 4 as an example, when the first magnetic
In order to prevent the first magnetic
It should be noted that, in the above embodiment, within a certain range, the amplitude and the phase of the output voltage have a certain relationship with the ratio of the magnetic induction adjusting assembly moving into the gap (i.e., the ratio of the length of the magnetic induction adjusting assembly moving into the gap to the total length of the magnetic induction adjusting assembly, or the ratio of the volume of the magnetic induction adjusting assembly moving into the gap to the total volume of the magnetic induction adjusting assembly). Therefore, in practical application, the amplitude and the phase of the output voltage can be adjusted by adjusting the proportion of the magnetic induction adjusting assembly moving into the notch according to the requirements of users and practical application scenes.
In order to realize the movement of the first to third magnetic induction adjusting components between the first notch and the second notch, in one embodiment of the present disclosure, the voltage converting device may further include first to third adjusting components for adjusting positions of the first to third magnetic induction adjusting components, respectively.
As a possible implementation, the
As another possible implementation, the
That is to say, the dial or the knob in the above embodiments is used to adjust the position of the magnetic induction adjusting assembly to adjust the amplitude and the phase of the output voltage, and in practical applications, the corresponding adjusting assembly can be selected according to different situations.
In summary, the voltage conversion device provided in the embodiments of the present disclosure is configured to have the first notch at the at least one main magnetic sensing component, the second notch at the at least one auxiliary magnetic sensing component, and the at least one movable magnetic induction adjusting component between the first notch and the second notch, and by adjusting the positions of the at least one magnetic induction adjusting component at the first notch and the second notch, the amplitude and/or the phase of the voltage at the voltage output end can be continuously adjusted on line, and the voltage conversion device is simple in structure, and avoids the complex operation of changing the connection line.
Fig. 11 is a block schematic diagram illustrating a three-phase voltage conversion device according to an exemplary embodiment. Referring to fig. 11, the
That is, the three-phase voltage converting device is composed of three voltage converting devices in the above-described embodiments, the voltage converting devices output single-phase power, and the three-phase voltage converting device composed of the three voltage converting devices can output three-phase voltages.
It should be noted that, the working principles of the first voltage conversion device, the second voltage conversion device and the third voltage conversion device refer to the description in the foregoing embodiments, and are not described again.
The three-phase voltage conversion device can realize the online stepless regulation of the amplitude and the phase of the three-phase output voltage.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
- 上一篇:一种医用注射器针头装配设备
- 下一篇:一种六开关五电平整流器及其控制方法