阅读说明：本技术 一种无谐波大功率电源装置 (Harmonic-free high-power supply device ) 是由 陈伟星 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种无谐波大功率电源装置,涉及电源装置的技术领域,其技术方案要点是：一种无谐波大功率电源装置,包括变压器,所述变压器包括初级线圈、次级线圈及铁芯,所述变压器的初级线圈带有多个初级抽头,所述变压器的次级线圈带有多个次级抽头,多个所述初级抽头设置有输入侧档位开关,多个所述次级抽头设置有输出侧档位开关,所述输入侧档位开关和所述输出侧档位开关均通过设置有中央控制器实现自动调节及控制。本发明的一种无谐波大功率电源装置以实现自动调节输出电压,且调压响应速度快。(The invention discloses a harmonic-free high-power supply device, which relates to the technical field of power supply devices and adopts the technical scheme that: a harmonic-free high-power supply device comprises a transformer, wherein the transformer comprises a primary coil, a secondary coil and an iron core, the primary coil of the transformer is provided with a plurality of primary taps, the secondary coil of the transformer is provided with a plurality of secondary taps, a plurality of primary taps are provided with input side gear switches, a plurality of secondary taps are provided with output side gear switches, and the input side gear switches and the output side gear switches are automatically adjusted and controlled through a central controller. The harmonic-free high-power supply device disclosed by the invention can realize automatic regulation of output voltage and has high voltage regulation response speed.)

1. A harmonic-free high-power supply device comprises a transformer (1), wherein the transformer (1) comprises a primary coil, a secondary coil and an iron core, and is characterized in that: the transformer is characterized in that a primary coil of the transformer (1) is provided with a plurality of primary taps (101), a secondary coil of the transformer (1) is provided with a plurality of secondary taps (102), the primary taps (101) are provided with input side gear switches (2), the secondary taps (102) are provided with output side gear switches (3), and the input side gear switches (2) and the output side gear switches (3) are both automatically adjusted and controlled by being provided with a central controller (4).

2. The harmonic-free high-power supply device according to claim 1, wherein: the output side gear switch (3) is provided with a blocking switch (5) which is electrically connected with the central controller (4).

3. The harmonic-free high-power supply device according to claim 1, wherein: a plurality of the initial end of primary tap (101) is provided with reverse side (6), reverse side (6) and terminal primary tap (101) are connected, it is a plurality of be provided with between the initial end of primary tap (101) and reverse side (6) with the positive and negative selector switch (7) that the input is connected, positive and negative selector switch (7) are connected with central controller (4) electricity.

4. The harmonic-free high-power supply device according to claim 1, wherein: the central controller (4) is connected with a sampling circuit (8) arranged on a loop on one side of the secondary coil, and the sampling circuit (8) is connected to the output end of the output-side gear switch (3).

5. A harmonic-free high-power supply unit as claimed in claim 2, wherein: the blocking switch (5) is a silicon controlled unit.

6. The harmonic-free high-power supply device according to claim 5, wherein: the central controller (4) comprises a zero-crossing detection and trigger circuit; the zero-crossing detection and trigger circuit detects the zero crossing point of each phase voltage and generates trigger pulse after delaying for 0-180 degrees to conduct the interior of the silicon controlled voltage regulating unit.

7. The harmonic-free high-power supply device according to claim 1, wherein: and a loop at one side of the primary coil of the transformer (1) is provided with an overload protection circuit (9).

8. The harmonic-free high-power supply device according to claim 4, wherein: central controller (4) are connected with GPRS wireless communication module (10), central controller (4) have mobile terminal (11) through GPRS wireless communication module (10) wireless connection.

9. The harmonic-free high-power supply device according to claim 4, wherein: the central controller (4) is connected with a display control screen (12).

Technical Field

The invention relates to the technical field of power supply devices, in particular to a harmonic-free high-power supply device.

Background

At present, with the increase of industrial power consumption in China, the condition of a terminal power supply line is increasingly complex, the voltage of commercial power close to a distribution transformer is generally higher, the voltage fluctuates along with the change of power supply load, the large industrial load at night is lightened, and the voltage of the peripheral power supply line is further increased. When the power supply load peak is encountered, the commercial power voltage of partial areas is low again. The fluctuation of the mains supply voltage brings adverse effects to the safe and reliable operation of equipment, and especially under most current conditions, the mains supply voltage is higher, so that the electric equipment is frequently in an overload operation state, the energy consumption is increased, the operation reliability is reduced, the fault rate is improved, the electric charge expenditure of a user is increased, and the equipment maintenance cost is also improved.

Although such fluctuations in the mains voltage are improved to some extent if the voltage regulation is performed by a distribution transformer on the mains side, it is difficult to take into account the actual operating requirements of most users because the electrical loads are distributed at different locations of the supply line.

The voltage regulation is carried out by the voltage regulating device at the user side to adapt to the electricity demand of the equipment, so that the method is feasible, the voltage of the electricity equipment can be stabilized below the nominal rated voltage at least, the voltage can be further reduced according to the characteristics of the electricity equipment, the equipment is under lower energy consumption, and the effect of energy conservation is achieved. At present, the voltage regulation of the autotransformer is easy to realize, but the voltage of the autotransformer is realized by switching different taps, only the step regulation can be realized, and the response speed is low.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a harmonic-free high-power supply device to realize automatic output voltage regulation and high voltage regulation response speed.

The above object of the present invention is achieved by the following technical solutions:

a harmonic-free high-power supply device comprises a transformer, wherein the transformer comprises a primary coil, a secondary coil and an iron core, the primary coil of the transformer is provided with a plurality of primary taps, the secondary coil of the transformer is provided with a plurality of secondary taps, a plurality of primary taps are provided with input side gear switches, a plurality of secondary taps are provided with output side gear switches, and the input side gear switches and the output side gear switches are automatically adjusted and controlled through a central controller.

By adopting the technical scheme, the central controller controls the input side gear switch and the output side gear switch by adopting the input side power supply signal and the user setting parameters so as to realize the output of the user setting target value at the output side; the input side gear switch and the output side gear switch are intelligently controlled through the central controller, the output voltage can be automatically regulated, and the voltage regulation response speed is high.

The invention is further configured to: the output side gear switch is provided with a blocking switch electrically connected with the central controller.

By adopting the technical scheme, the blocking switch is arranged, so that a user can disconnect the connection part of the signal input end in some special conditions to perform emergency treatment.

The invention is further configured to: the primary tap is provided with a plurality of initial ends, the reversal line is connected with the terminal primary tap, a positive and negative selection switch connected with the input end is arranged between the initial ends and the reversal line of the primary taps, and the positive and negative selection switch is electrically connected with the central controller.

Through adopting above-mentioned technical scheme, can change the number of turns of primary coil through control positive and negative selection switch direct control to become the direction from the positive, thereby change output voltage, make and just can realize the pressure regulating without adjusting input side gear switch, the pressure regulating response speed is faster.

The invention is further configured to: the central controller is connected with a sampling circuit arranged on a loop on one side of the secondary coil, and the sampling circuit is connected to the output end of the output side gear switch.

By adopting the technical scheme, the sampling circuit is arranged, so that the output voltage and the output current can be acquired in real time, and the central controller can timely make correct response.

The invention is further configured to: the blocking switch is a silicon controlled rectifier unit.

The invention is further configured to: the central controller comprises a zero-crossing detection and trigger circuit; the zero-crossing detection and trigger circuit detects the zero crossing point of each phase voltage and generates trigger pulse after delaying for 0-180 degrees to conduct the interior of the silicon controlled voltage regulating unit.

By adopting the technical scheme, the zero-crossing detection and trigger circuit detects the zero-crossing point of each phase voltage and generates trigger pulse after delaying for 0-180 degrees to conduct the corresponding thyristor in the thyristor voltage regulation unit, thereby controlling the on-off of the thyristor unit.

The invention is further configured to: and a loop at one side of the primary coil of the transformer is provided with an overload protection circuit.

Through adopting above-mentioned technical scheme to protection primary coil one side return circuit prevents to take place the overload phenomenon.

The invention is further configured to: the central controller is connected with a GPRS wireless communication module, and the central controller is connected with a mobile terminal through the GPRS wireless communication module in a wireless mode.

By adopting the technical scheme, the information intercommunication and remote control with the mobile terminal are realized through the GPRS wireless communication module, relevant personnel can check relevant real-time data through the mobile terminal, and remote relevant control is realized through the mobile terminal.

The invention is further configured to: the central controller is connected with a display control screen.

By adopting the technical scheme, users can clearly and visually see the output voltage and other related data and control the data through the display control screen.

In conclusion, the beneficial technical effects of the invention are as follows:

1. the input side gear switch and the output side gear switch are intelligently controlled by the central controller, so that the output voltage can be automatically regulated, and the voltage regulation response speed is high;

2. the blocking switch is provided so that a user can disconnect the connection portion of the signal input terminal for emergency treatment in some special situations.

Drawings

FIG. 1 is a circuit schematic of the present invention;

FIG. 2 is a system block diagram of the present invention;

fig. 3 is a circuit diagram of a zero-crossing detection and trigger circuit.

In the figure, 1, a transformer; 101. a primary tap; 102. a secondary tap; 2. an input side gear switch; 3. an output side gear switch; 4. a central controller; 5. a blocking switch; 6. a reverse line; 7. a positive and negative selection switch; 8. a sampling circuit; 9. an overload protection circuit; 10. a GPRS wireless communication module; 11. a mobile terminal; 12. and displaying a control screen.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1-3, the harmonic-free high-power supply device disclosed by the invention comprises a transformer 1, wherein the transformer 1 comprises a primary coil, a secondary coil and an iron core, the primary coil of the transformer 1 is provided with a plurality of primary taps 101, the secondary coil of the transformer 1 is provided with a plurality of secondary taps 102, the plurality of primary taps 101 are provided with input-side gear switches 2, the plurality of secondary taps 102 are provided with output-side gear switches 3, and the input-side gear switches 2 and the output-side gear switches 3 are both automatically adjusted and controlled by being provided with a central controller 4. The central controller 4 controls the input side gear switch 2 and the output side gear switch 3 by adopting the input side power supply signal and the user setting parameters so as to realize the output of the user setting target value of the output side; through 4 intelligent control input side gear switch 2 of central controller and output side gear switch 3, can realize automatically regulated output voltage, and the voltage regulation response speed is fast.

In order to cut off the signal input in time when special conditions occur, a blocking switch 5 electrically connected with the central controller 4 is arranged on the output side gear switch 3; the blocking switch 5 is a thyristor unit in this embodiment. So that the user can disconnect the connection part of the signal input terminal for emergency treatment in some special conditions.

Meanwhile, a reverse line 6 is arranged at the initial end of the primary taps 101, the reverse line 6 is connected with the primary tap 101 at the tail end, a positive and negative selection switch 7 connected with the input end is arranged between the initial end of the primary taps 101 and the reverse line 6, and the positive and negative selection switch 7 is electrically connected with the central controller 4. Can change primary coil's number of turns through control positive and negative selection switch 7 direct control to become the direction from the positive, thereby change output voltage, make can just can realize the pressure regulating without adjusting input side gear switch 2, the pressure regulating response speed is faster.

The central controller 4 is connected to a sampling circuit 8 provided in a circuit on one side of the secondary coil, the sampling circuit 8 is connected to an output terminal of the output-side inhibitor switch 3, and the sampling circuit 8 includes a voltage sampling circuit and a current sampling circuit. The output voltage and the output current can be collected in real time, and the central controller 4 can make correct response in time.

In the present embodiment, the central controller 4 includes a zero-crossing detection and trigger circuit; the zero-crossing detection and trigger circuit detects the zero crossing point of each phase voltage and generates trigger pulse after delaying for 0-180 degrees to conduct the interior of the silicon controlled voltage regulating unit. The zero-crossing detection and trigger circuit detects the zero crossing point of each phase voltage, and generates trigger pulse after delaying 0-180 degrees to conduct the corresponding thyristor in the thyristor voltage regulation unit, thereby controlling the on-off of the thyristor unit.

In order to prevent the overload phenomenon, an overload protection circuit 9 is provided in a loop at one side of the primary coil of the transformer 1. To protect the primary coil side loop and prevent the overload phenomenon.

The central controller 4 is connected with a GPRS wireless communication module 10, and the central controller 4 is wirelessly connected with a mobile terminal 11 through the GPRS wireless communication module 10. Information intercommunication and remote control with the mobile terminal 11 are realized through the GPRS wireless communication module 10, related personnel can check related real-time data through the mobile terminal 11, and remote related control is realized through the mobile terminal 11.

Meanwhile, the central controller 4 is connected with a display control screen 12. The user can clearly and intuitively see the relevant data such as the output voltage and the like, and control the data through the display control screen 12.

The overload protection circuit 9, the voltage sampling circuit, and the current sampling circuit described in this embodiment are all related art, and will not be described in detail here.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.