阅读说明：本技术 一种电源效率优化方法、装置及电源设备 (Power efficiency optimization method and device and power equipment ) 是由 程文峰 陈勇 于 2020-07-27 设计创作，主要内容包括：本发明公开一种电源效率优化方法、装置及电源设备。其中,该方法包括：控制电源设备的输出电压按照预设规则变化；在变化过程中,获取每个输出电压对应的实时效率值；根据所述实时效率值与预先存储的电源设备的历史最高效率值确定电源设备的最优效率值；其中,所述历史最高效率值根据一个或多个用电设备的运行状态确定；控制所述电源设备输出所述最优效率值所对应的输出电压。通过本发明,实现根据外接用电设备状态的改变,自动优化自身效率,保证电源设备以最大效率工作,节约能源。(The invention discloses a power supply efficiency optimization method, a power supply efficiency optimization device and power supply equipment. Wherein, the method comprises the following steps: controlling the output voltage of the power supply equipment to change according to a preset rule; in the change process, acquiring a real-time efficiency value corresponding to each output voltage; determining the optimal efficiency value of the power supply equipment according to the real-time efficiency value and the prestored historical highest efficiency value of the power supply equipment; wherein the historical maximum efficiency value is determined from operating conditions of one or more powered devices; and controlling the power supply equipment to output the output voltage corresponding to the optimal efficiency value. According to the invention, the self efficiency is automatically optimized according to the change of the state of the external power utilization equipment, the power supply equipment is ensured to work at the maximum efficiency, and the energy is saved.)

1. A method for optimizing power supply efficiency, the method comprising:

controlling the output voltage of the power supply equipment to change according to a preset rule;

in the change process, acquiring a real-time efficiency value corresponding to each output voltage; determining the optimal efficiency value of the power supply equipment according to the real-time efficiency value and the prestored historical highest efficiency value of the power supply equipment; wherein the historical maximum efficiency value is determined from operating conditions of one or more powered devices;

and controlling the power supply equipment to output the output voltage corresponding to the optimal efficiency value.

2. The method of claim 1, wherein controlling the output voltage of the power supply device to vary according to a preset rule comprises:

calculating a target output voltage of the power supply equipment according to a preset rule;

and outputting a PWM wave driving signal according to the error value of the current output voltage and the target output voltage of the power supply equipment, and further controlling the power supply equipment to output the target output voltage.

3. The method of claim 2, wherein calculating the target output voltage of the power supply device according to a preset rule comprises:

controlling the output voltage of the power supply equipment to gradually decrease according to a preset step length on the basis of the highest input voltage of the electric equipment to obtain a target output voltage; or;

and controlling the output voltage of the power supply equipment to gradually increase according to a preset step length on the basis of the lowest input voltage of the electric equipment to obtain a target output voltage.

4. The method of claim 3, wherein when the output voltage of the power supply device is controlled to vary according to a preset rule, the method further comprises:

after the power supply equipment is controlled to output the target output voltage each time, acquiring the change rate of the real-time efficiency;

adjusting the preset step length according to the change rate of the real-time efficiency; wherein the smaller the absolute value of the change rate of the real-time efficiency is, the smaller the preset step length is.

5. The method of claim 1, wherein when the output voltage of the power supply device is controlled to vary according to a preset rule, the method further comprises:

after the output voltage of the control power supply equipment changes according to a preset rule every time, acquiring the change trend of real-time efficiency;

and if the change trend of the real-time efficiency is opposite after two adjacent changes, controlling the output voltage of the power supply equipment to change according to the opposite trend, and simultaneously reducing the change amplitude.

6. The method of claim 3, wherein after obtaining the target output voltage, the method further comprises:

judging whether the target output voltage is in the input voltage range of the electric equipment or not; wherein the input voltage range is determined according to the lowest input voltage and the highest input voltage of the electric equipment;

if yes, controlling the power supply equipment to output the target output voltage;

and if not, controlling the output voltage of the power supply equipment to keep the current value and not to change any more.

7. The method of claim 6, wherein the input voltage range is determined based on a lowest input voltage and a highest input voltage of the powered device, comprising:

when the power supply equipment is connected with only one electric equipment, the input voltage range is determined according to the lowest input voltage and the highest input voltage of the electric equipment;

when the power supply equipment is connected with two or more electric equipment, the input voltage range is determined according to the maximum value in the lowest input voltages of all the electric equipment and the minimum value in the highest input voltages of all the electric equipment.

8. The method of claim 1, wherein obtaining real-time efficiency values for each output voltage during the varying comprises:

and calculating the real-time efficiency value according to the input voltage, the input current, the output voltage and the output current of the power supply equipment at the current moment.

9. The method of claim 1, wherein determining an optimal efficiency value for a power device based on the real-time efficiency value and a pre-stored historical maximum efficiency value for the power device comprises:

determining whether the real-time efficiency value is greater than or equal to the historical maximum efficiency value;

if so, determining the real-time efficiency value at the current moment as the optimal efficiency value;

if not, controlling the output voltage of the power supply equipment to continuously change according to a preset rule until the real-time efficiency value is greater than or equal to the historical highest efficiency value, and determining the real-time efficiency value at the current moment as the optimal efficiency value.

10. The method of claim 1, wherein the historical maximum efficiency value is determined based on an operating state of one or more powered devices, comprising:

when the power supply equipment is connected with only one piece of electric equipment, the historical highest efficiency value is determined according to different running states of the connected electric equipment;

when the power supply device is connected with two or more electric devices, the historical highest efficiency value is determined according to the overall operation state of all the electric devices.

11. The method of claim 10, wherein the historical maximum efficiency value is determined based on an overall operating status of all powered devices when a power device is connected to two or more powered devices, comprising:

enumerating different operating states of each powered device;

listing all the total operation state combinations obtained after each electric device is combined according to different operation states;

and after detecting the corresponding historical maximum efficiency value under each overall operation state combination, storing the values into a power supply system.

12. The method of claim 1, wherein prior to obtaining real-time efficiency values for each output voltage during the varying, the method further comprises:

judging whether the output voltage of the power supply equipment is stable or not;

and triggering to acquire the real-time efficiency value corresponding to each output voltage after the output voltage of the power supply equipment is stable.

13. The method of claim 1, wherein before controlling the output voltage of the power supply device to vary according to the preset rule, the method further comprises:

monitoring the current running state of the electric equipment;

when the current running state of the electric equipment changes, the historical highest efficiency value stored in advance is replaced by the historical highest efficiency value corresponding to the changed running state, and meanwhile, the output voltage of the power supply equipment is triggered and controlled to change according to a preset rule.

14. The method of claim 1, wherein before controlling the output voltage of the power supply device to vary according to the preset rule, the method further comprises:

setting a timing value through a timer;

and when the timing value is reached, calling the historical highest efficiency value corresponding to the current running state of the electric equipment, and simultaneously triggering and controlling the output voltage of the power supply equipment to change according to a preset rule.

15. A power supply efficiency optimization apparatus that implements the power supply efficiency optimization method according to any one of claims 1 to 14, the apparatus comprising:

the control module is used for controlling the output voltage of the power supply equipment to change according to a preset rule;

the acquisition module is used for acquiring a real-time efficiency value corresponding to each output voltage in the change process;

the determining module is used for determining the optimal efficiency value of the power supply equipment according to the real-time efficiency value and the historical highest efficiency value of the pre-stored power supply equipment; wherein the historical maximum efficiency value is determined from operating conditions of one or more powered devices;

and the voltage output module is used for controlling the power supply equipment to output the output voltage corresponding to the optimal efficiency value.

16. A power supply apparatus comprising the power supply efficiency optimizing device according to claim 15.

17. A computer-readable storage medium on which a computer program is stored, the program, when executed by a processor, implementing the power efficiency optimization method according to any one of claims 1 to 14.

Technical Field

The invention relates to the technical field of electronic power, in particular to a power supply efficiency optimization method, a power supply efficiency optimization device and power supply equipment.

Background

For different electric devices, the input voltage of the electric devices has a voltage range, and the electric devices can work normally in the voltage range. However, different electric devices have certain difference in required voltage range and larger difference in power; even the electric equipment with the same type and specification are connected on the same bus in parallel, and the input voltage and the power have larger difference due to factors such as the number and the like; the input voltage and power of the electric equipment are also greatly different in the operation process or before and after switching action. Due to the differences, the maximum efficiency point of the power supply equipment is not constant, and the traditional power supply equipment cannot automatically optimize the self efficiency according to the change of the state of the external power equipment to achieve the maximum efficiency working state, so that the capacity of the power supply equipment cannot be exerted to the maximum extent, and certain electric energy waste exists.

Aiming at the problem that in the prior art, the power supply equipment cannot automatically optimize the efficiency along with the change of the state of external power utilization equipment, an effective solution is not provided at present.

Disclosure of Invention

The embodiment of the invention provides a power efficiency optimization method, a power efficiency optimization device and power equipment, and aims to solve the problem that in the prior art, the power equipment cannot automatically optimize the efficiency of the power equipment along with the change of the state of external power equipment.

In order to solve the technical problem, the invention provides a power efficiency optimization method, wherein the method comprises the following steps:

controlling the output voltage of the power supply equipment to change according to a preset rule;

in the change process, acquiring a real-time efficiency value corresponding to each output voltage; determining the optimal efficiency value of the power supply equipment according to the real-time efficiency value and the prestored historical highest efficiency value of the power supply equipment; wherein the historical maximum efficiency value is determined from operating conditions of one or more powered devices;

and controlling the power supply equipment to output the output voltage corresponding to the optimal efficiency value.

Further, controlling the output voltage of the power supply device to change according to a preset rule includes:

calculating a target output voltage of the power supply equipment according to a preset rule;

and outputting a PWM wave driving signal according to the error value of the current output voltage and the target output voltage of the power supply equipment, and further controlling the power supply equipment to output the target output voltage.

Further, calculating a target output voltage of the power supply device according to a preset rule, comprising:

controlling the output voltage of the power supply equipment to gradually decrease according to a preset step length on the basis of the highest input voltage of the electric equipment to obtain a target output voltage; or;

and controlling the output voltage of the power supply equipment to gradually increase according to a preset step length on the basis of the lowest input voltage of the electric equipment to obtain a target output voltage.

Further, when the output voltage of the power supply device is controlled to change according to a preset rule, the method further comprises:

after the power supply equipment is controlled to output the target output voltage each time, acquiring the change rate of the real-time efficiency;

adjusting the preset step length according to the change rate of the real-time efficiency; wherein the smaller the absolute value of the change rate of the real-time efficiency is, the smaller the preset step length is.

Further, when the output voltage of the power supply device is controlled to change according to a preset rule, the method further comprises:

after the output voltage of the control power supply equipment changes according to a preset rule every time, acquiring the change trend of real-time efficiency;

and if the change trend of the real-time efficiency is opposite after two adjacent changes, controlling the output voltage of the power supply equipment to change according to the opposite trend, and simultaneously reducing the change amplitude.

Further, after obtaining the target output voltage, the method further includes:

judging whether the target output voltage is in the input voltage range of the electric equipment or not; wherein the input voltage range is determined according to the lowest input voltage and the highest input voltage of the electric equipment;

if yes, controlling the power supply equipment to output the target output voltage;

and if not, controlling the output voltage of the power supply equipment to keep the current value and not to change any more.

Further, the input voltage range is determined according to the lowest input voltage and the highest input voltage of the electric equipment, and comprises:

when the power supply equipment is connected with only one electric equipment, the input voltage range is determined according to the lowest input voltage and the highest input voltage of the electric equipment;

when the power supply equipment is connected with two or more electric equipment, the input voltage range is determined according to the maximum value in the lowest input voltages of all the electric equipment and the minimum value in the highest input voltages of all the electric equipment.

Further, in the variation process, obtaining a real-time efficiency value corresponding to each output voltage includes:

and calculating the real-time efficiency value according to the input voltage, the input current, the output voltage and the output current of the power supply equipment at the current moment.

Further, determining an optimal efficiency value of the power supply device according to the real-time efficiency value and a pre-stored historical maximum efficiency value of the power supply device, including:

determining whether the real-time efficiency value is greater than or equal to the historical maximum efficiency value;

if so, determining the real-time efficiency value at the current moment as the optimal efficiency value;

if not, controlling the output voltage of the power supply equipment to continuously change according to a preset rule until the real-time efficiency value is greater than or equal to the historical highest efficiency value, and determining the real-time efficiency value at the current moment as the optimal efficiency value.

Further, the historical maximum efficiency value is determined according to the operating state of one or more electric devices, and comprises the following steps:

when the power supply equipment is connected with only one piece of electric equipment, the historical highest efficiency value is determined according to different running states of the connected electric equipment;

when the power supply device is connected with two or more electric devices, the historical highest efficiency value is determined according to the overall operation state of all the electric devices.

Further, when the power supply device is connected to two or more electrical devices, the determining of the historical maximum efficiency value according to the overall operation state of all the electrical devices includes:

enumerating different operating states of each powered device;

listing all the total operation state combinations obtained after each electric device is combined according to different operation states;

and after detecting the corresponding historical maximum efficiency value under each overall operation state combination, storing the values into the system.

Further, before acquiring a real-time efficiency value corresponding to each output voltage in the variation process, the method further includes:

judging whether the output voltage of the power supply equipment is stable or not;

and triggering to acquire the real-time efficiency value corresponding to each output voltage after the output voltage of the power supply equipment is stable.

Further, before controlling the output voltage of the power supply device to change according to the preset rule, the method further comprises:

monitoring the current running state of the electric equipment;

when the current running state of the electric equipment changes, the historical highest efficiency value stored in advance is replaced by the historical highest efficiency value corresponding to the changed running state, and meanwhile, the output voltage of the power supply equipment is triggered and controlled to change according to a preset rule.

Further, before controlling the output voltage of the power supply device to change according to the preset rule, the method further comprises:

setting a timing value through a timer;

and when the timing value is reached, calling the historical highest efficiency value corresponding to the current running state of the electric equipment, and simultaneously triggering and controlling the output voltage of the power supply equipment to change according to a preset rule.

The invention also provides a power efficiency optimization device for realizing the power efficiency optimization method, which comprises the following steps:

the control module is used for controlling the output voltage of the power supply equipment to change according to a preset rule;

the acquisition module is used for acquiring a real-time efficiency value corresponding to each output voltage in the change process;

the determining module is used for determining the optimal efficiency value of the power supply equipment according to the real-time efficiency value and the historical highest efficiency value of the pre-stored power supply equipment; wherein the historical maximum efficiency value is determined based on an operating state of one or more powered devices.

And the voltage output module is used for controlling the power supply equipment to output the output voltage corresponding to the optimal efficiency value.

The invention also provides power supply equipment comprising the power supply efficiency optimizing device.

The present invention also provides a computer-readable storage medium, on which a computer program is stored, which program, when executed by a processor, implements the power efficiency optimization method according to any one of claims 1 to 11.

By applying the technical scheme of the invention, the output voltage of the power supply equipment is controlled to change according to a preset rule; in the change process, acquiring a real-time efficiency value corresponding to each output voltage; determining the optimal efficiency value of the power supply equipment according to the real-time efficiency value and the prestored historical highest efficiency value of the power supply equipment; wherein the historical maximum efficiency value is determined from operating conditions of one or more powered devices; and controlling the power supply equipment to output the output voltage corresponding to the optimal efficiency value. The automatic optimization of the self efficiency can be realized according to the change of the state of the external electric equipment, the work of the power supply equipment with the maximum efficiency is ensured, and the energy is saved.

Drawings

Fig. 1 is a schematic diagram of a connection relationship between a power-consuming device and a power device according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of another connection relationship between a power-consuming device and a power device according to an embodiment of the present invention;

FIG. 3 is a flow chart of a power efficiency optimization method according to an embodiment of the invention;

FIG. 4 is a graph of power supply device output voltage versus efficiency;

FIG. 5 is a flow diagram of a power efficiency optimization method according to another embodiment of the invention;

FIG. 6 is a schematic diagram of output voltage regulation according to an embodiment of the present invention;

FIG. 7 is a flow diagram of a timed trigger according to an embodiment of the present invention;

fig. 8 is a block diagram of a power efficiency optimizing apparatus according to an embodiment of the present invention;

fig. 9 is a block diagram of a power efficiency optimizing apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in the article or device in which the element is included.

Alternative embodiments of the present invention are described in detail below with reference to the accompanying drawings.