CN110994972A - Power supply system and electronic equipment - Google Patents
Power supply system and electronic equipment Download PDFInfo
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- CN110994972A CN110994972A CN201911165971.0A CN201911165971A CN110994972A CN 110994972 A CN110994972 A CN 110994972A CN 201911165971 A CN201911165971 A CN 201911165971A CN 110994972 A CN110994972 A CN 110994972A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0016—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
- H02M1/0019—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being load current fluctuations
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Voltage And Current In General (AREA)
Abstract
The invention discloses a power supply system and an electronic device, comprising: a power circuit; a filter circuit electrically connected to an output side of the power circuit; and the closed-loop control circuit is electrically connected with the output side of the filter circuit and is used for acquiring the output current of the filter circuit as feedback current, comparing the sum of the given current and the compensation current with the feedback current after filtering out interference current in the feedback current as compensation current, and adjusting the output of the power circuit according to the current comparison result so that the difference value between the sum of the given current and the compensation current and the feedback current after adjusting the power circuit is in a preset range. The method comprises the steps of obtaining interference current in feedback current as compensation current, then adjusting a power circuit by adopting a comparison result of the sum of the given current and the compensation current and the feedback current, wherein the comparison result not only has a function of roughly adjusting according to the comparison result of the given current and the feedback current, but also has a function of finely adjusting according to the compensation current, and the output accuracy of a power supply system is improved.
Description
Technical Field
The invention relates to the technical field of power electronic circuit control, in particular to a power supply system and electronic equipment.
Background
The high-precision power supply is widely applied to the fields of remote communication, optical precision measurement, laser pumping, medical diagnosis and the like. The traditional high-precision power supply generally adopts a negative feedback technology, and the output quantity of the power supply is adjusted by the difference between a given value and a feedback value through a PID regulator after sampling and filtering. In high precision power supply systems, the filter plays a crucial role, directly determining the quality of the power supply output. Because the circuit is in a complex working environment, various types of interference such as temperature drift, electromagnetism, noise, power grid fluctuation and the like can exist, various types of noise are difficult to filter by a common filter, and accurate and quick sampling of a control system cannot be guaranteed, so that the system cannot accurately track a given value.
Disclosure of Invention
In view of this, the present invention provides a power supply system and an electronic device, which effectively solve the technical problems in the prior art, accurately correct the output of the power supply system, and improve the output accuracy of the power supply system.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a power supply system comprising:
the input side of the power circuit is connected with direct current;
the filter circuit is electrically connected with the output side of the power circuit, wherein the output side of the filter circuit is electrically connected with a load;
and the closed-loop control circuit is electrically connected with the output side of the filter circuit and is used for acquiring the output current of the filter circuit as feedback current, filtering out interference current in the feedback current as compensation current, comparing the sum of given current and the compensation current with the feedback current, and adjusting the output of the power circuit according to a current comparison result so that the difference value between the sum of the given current and the compensation current and the feedback current after the power circuit is adjusted is within a preset range.
Optionally, the closed-loop control circuit includes an adjusting sub-circuit, and the adjusting sub-circuit is configured to compare the sum of the given current and the compensation current with the feedback current, and adjust the output of the power circuit according to a current comparison result;
the regulating sub-circuit comprises a current PI regulator and a voltage PI regulator;
the given end of the current PI regulator is connected with the compensation current and the given current, the feedback end of the current PI regulator is connected with the feedback current, the output end of the current PI regulator is electrically connected with the given end of the voltage PI regulator, the feedback end of the voltage PI regulator is connected with the output voltage of the filter circuit, and the output end of the voltage PI regulator is electrically connected with the power circuit.
Optionally, the regulation sub-circuit further includes a low-order filter electrically connected between the feedback current and the feedback end of the current PI regulator.
Optionally, the closed-loop control circuit includes a filter sub-circuit, and the filter sub-circuit is configured to filter out an interference current in the feedback current as a compensation current;
the filtering sub-circuit comprises a first filter, a second filter, a third filter, a fourth filter, a fifth filter, a sixth filter;
the output end of the ith filter is electrically connected with the feedback end of the iPI th regulator, the given end of the (i + 1) th PI regulator and the input end of the (i + 1) th filter, and i is a positive integer smaller than N;
the input end of the first filter is connected with the feedback current, the output end of the Nth filter is electrically connected with the feedback end of the Nth regulator, and the given end of the first PI regulator is connected with the feedback current;
and the output ends of the first PI regulator to the second PI regulator are electrically connected with the output side of the adder, and the adder outputs the compensation current.
Optionally, the first filter to the nth filter are high-order filters.
Optionally, the power circuit is a linear power circuit or a switching power circuit.
Optionally, the filter circuit is an LC filter circuit.
Correspondingly, the invention further provides electronic equipment which comprises the power supply system.
Compared with the prior art, the technical scheme provided by the invention at least has the following advantages:
the invention provides a power supply system and an electronic device, comprising: the input side of the power circuit is connected with direct current; the filter circuit is electrically connected with the output side of the power circuit, wherein the output side of the filter circuit is electrically connected with a load; and the closed-loop control circuit is electrically connected with the output side of the filter circuit and is used for acquiring the output current of the filter circuit as feedback current, filtering out interference current in the feedback current as compensation current, comparing the sum of given current and the compensation current with the feedback current, and adjusting the output of the power circuit according to a current comparison result so that the difference value between the sum of the given current and the compensation current and the feedback current after the power circuit is adjusted is within a preset range.
According to the technical scheme provided by the invention, in the process of adjusting the output of the power circuit, the interference current in the feedback current is obtained as the compensation current, and then the comparison result of the sum of the given current and the compensation current and the feedback current is adopted to adjust the power circuit, so that the function of roughly adjusting the power circuit according to the comparison result of the given current and the feedback current is included, and the function of finely adjusting the power circuit according to the compensation current is also included, so that the purpose of accurately correcting the output of the power system is achieved, and the output accuracy of the power system is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a power supply system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another power supply system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and 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.
As described in the background art, high-precision power supplies are widely used in the fields of remote communication, optical precision measurement, laser pumping, medical diagnosis, and the like. The traditional high-precision power supply generally adopts a negative feedback technology, and the output quantity of the power supply is adjusted by the difference between a given value and a feedback value through a PID regulator after sampling and filtering. In high precision power supply systems, the filter plays a crucial role, directly determining the quality of the power supply output. Because the circuit is in a complex working environment, various types of interference such as temperature drift, electromagnetism, noise, power grid fluctuation and the like can exist, various types of noise are difficult to filter by a common filter, and accurate and quick sampling of a control system cannot be guaranteed, so that the system cannot accurately track a given value.
Specifically, a control system of a conventional high-precision power supply generally comprises a sampling filter, a negative feedback, a regulator and the like, and the working principle of the control system is as follows: the data of the power output value after sampling and filtering is compared with a given value, the error between the data and the given value is sent to a regulator, and the regulator regulates the output to change the size of the power output value, so that the aim of stabilizing the power output is fulfilled. Generally, the output variable samples must be filtered by a filter to remove noise before being sent to the control system as a basis for closed-loop regulation of the control system. However, there are several problems as follows: 1. the interference diversity, the power circuit is in the complicated working environment, there may exist various types of interference such as temperature drift, electromagnetism, noise, power grid fluctuation, etc., the common filter is difficult to filter various types of noise, it is not enough to ensure the control system to obtain accurate and fast sampling, thereby causing the system to be unable to accurately track the given value; 2. the filter has time-ductility, and both analog filtering and digital filtering necessarily cause time delay of effective signals while filtering clutter, so that the control accuracy of the system is reduced, and therefore, in order to ensure that the system obtains excellent control accuracy, the high-accuracy power supply system needs to be provided with a filter with a higher order number to ensure that most of interference can be filtered, but the time delay of the system can be further caused by the arrangement of the high-order filter, and the performance of the control system is reduced.
Based on the power supply system and the electronic equipment, the power supply system and the electronic equipment effectively solve the technical problems in the prior art, accurately correct the output of the power supply system and improve the output accuracy of the power supply system. In order to achieve the above object, the technical solutions provided by the present invention are described in detail below with reference to fig. 1 and 2.
Referring to fig. 1, a schematic structural diagram of a power supply system according to an embodiment of the present invention is shown, where the power supply system includes:
the power circuit 100, the input side of the power circuit is connected with direct current;
a filter circuit 200 electrically connected to an output side of the power circuit 100, wherein the output side of the filter circuit 200 is electrically connected to a load 300;
and a closed-loop control circuit 400 electrically connected to the output side of the filter circuit 200, where the closed-loop control circuit 400 is configured to collect an output current of the filter circuit 200 as a feedback current, filter out an interference current in the feedback current as a compensation current, compare a sum of a given current and the compensation current with the feedback current, and adjust the output of the power circuit 100 according to a current comparison result, so that a difference between the sum of the given current and the compensation current and the feedback current after the power circuit 100 is adjusted is within a preset range.
In an embodiment of the present invention, the interference current provided by the present invention is an interference current generated by various types of interference, such as temperature drift, electromagnetism, noise, power grid fluctuation, etc., in an environment where the power supply system is located, and the present application is not particularly limited thereto, and is determined by the environment where the power supply system is located.
It can be understood that, in the technical scheme provided by the invention, in the process of adjusting the output of the power circuit, the interference current in the feedback current is obtained as the compensation current, and then the comparison result of the sum of the given current and the compensation current and the feedback current is adopted to adjust the power circuit, which not only comprises the function of roughly adjusting the power circuit according to the comparison result of the given current and the feedback current, but also comprises the function of finely adjusting the power circuit according to the compensation current, thereby achieving the purpose of accurately correcting the output of the power system and improving the output accuracy of the power system.
The specific circuit structure of the power supply system provided by the invention is described in detail below with reference to fig. 2. Fig. 2 is a schematic structural diagram of another power supply system according to an embodiment of the present invention, in which the closed-loop control circuit 400 according to the present invention includes a regulation sub-circuit, and the regulation sub-circuit is configured to compare the sum of the given current and the compensation current with the feedback current, and regulate the output of the power circuit 100 according to the current comparison result;
wherein the regulating sub-circuit comprises a current PI regulator 411 and a voltage PI regulator 412;
the given end of the current PI regulator 411 is connected to the compensation current and the given current, the feedback end of the current PI regulator 411 is connected to the feedback current, the output end of the current PI regulator 411 is electrically connected to the given end of the voltage PI regulator 412, the feedback end of the voltage PI regulator 412 is connected to the output voltage of the filter circuit 200, and the output end of the voltage PI regulator 413 is electrically connected to the power circuit 100.
In an embodiment of the present invention, the regulation sub-circuit further includes a low-order filter 413 electrically connected between the feedback current and the feedback end of the current PI regulator 411. The order of the low-order filter is not more than 2, and the present invention is not limited thereto.
It can be understood that, in the technical scheme provided by the invention, because the low-order filter is arranged between the feedback current and the current PI regulator, when the power circuit is roughly regulated according to the comparison result of the given current and the feedback current, simple feedback control can be carried out through the low-order filter, and because the order of the low-order filter is low and the time delay is small, the power system can be ensured to have quick dynamic response capability.
In an embodiment of the present invention, the closed-loop control circuit provided by the present invention includes a filter sub-circuit, where the filter sub-circuit is configured to filter out an interference current in the feedback current as a compensation current;
the filtering sub-circuit comprises a first filter, a second filter, a third filter, a fourth filter, a fifth filter, a sixth filter;
the output end of the ith filter is electrically connected with the feedback end of the iPI th regulator, the given end of the (i + 1) th PI regulator and the input end of the (i + 1) th filter, and i is a positive integer smaller than N;
the input end of the first filter is connected with the feedback current, the output end of the Nth filter is electrically connected with the feedback end of the Nth regulator, and the given end of the first PI regulator is connected with the feedback current;
and the output ends of the first PI regulator to the second PI regulator are electrically connected with the output side of the adder, and the adder outputs the compensation current.
Specifically, referring to fig. 2, taking N as 3 as an example, the filtering sub-circuit includes a first filter 421 to a third filter 423, a first PI regulator 431 to a third PI regulator 433, and an adder 440.
The input end of the first filter 421 is connected with a feedback current, the output end of the first filter 421 is electrically connected with the input end of the second filter 422, the given end of the second PI regulator 432 and the feedback end of the first PI regulator 431, and the given end of the first PI regulator 431 is connected with the feedback current;
the output terminal of the second filter 422 is electrically connected to the input terminal of the third filter 423, the given terminal of the third PI regulator 433, and the feedback terminal of the second PI regulator 432;
the output end of the third filter 423 is electrically connected with the feedback end of the third PI regulator 433;
and, the output ends of the first PI regulator 421 to the third PI regulator 423 are all electrically connected to the output side of the adder 440, and the adder 440 outputs the compensation current.
It can be understood that, in the technical scheme provided by the invention, the filter sub-circuit filters out the interference current in the feedback current, then the interference current is used as the compensation current to be added with the given current, the addition result is compared with the feedback current, and finally the power circuit is regulated and controlled through the comparison result carrying the compensation information, so that the output of the power circuit is more accurate, and the output accuracy of the power system is improved.
In any embodiment of the present invention, the first to nth filters provided by the present invention are high order filters. The order of the high-order filter is not less than 50, and the present invention is not limited thereto.
In any embodiment of the present invention, the power circuit provided in the present invention is a linear power circuit or a switching power circuit, and the present invention is not limited in particular.
In any embodiment of the present invention, the filter circuit provided in the present invention is an LC filter circuit, and the present invention is not limited in particular.
In any embodiment of the present invention, the load provided by the present invention may be an inductive, resistive, or nonlinear load, and the present invention is not limited in particular.
Correspondingly, the invention further provides electronic equipment, and the electronic equipment comprises the power supply system provided by any one of the embodiments.
The invention provides a power supply system and an electronic device, comprising: the input side of the power circuit is connected with direct current; the filter circuit is electrically connected with the output side of the power circuit, wherein the output side of the filter circuit is electrically connected with a load; and the closed-loop control circuit is electrically connected with the output side of the filter circuit and is used for acquiring the output current of the filter circuit as feedback current, filtering out interference current in the feedback current as compensation current, comparing the sum of given current and the compensation current with the feedback current, and adjusting the output of the power circuit according to a current comparison result so that the difference value between the sum of the given current and the compensation current and the feedback current after the power circuit is adjusted is within a preset range.
According to the technical scheme provided by the invention, in the process of adjusting the output of the power circuit, the interference current in the feedback current is obtained as the compensation current, and then the comparison result of the sum of the given current and the compensation current and the feedback current is adopted to adjust the power circuit, so that the function of roughly adjusting the power circuit according to the comparison result of the given current and the feedback current is included, and the function of finely adjusting the power circuit according to the compensation current is also included, so that the purpose of accurately correcting the output of the power system is achieved, and the output accuracy of the power system is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A power supply system, comprising:
the input side of the power circuit is connected with direct current;
the filter circuit is electrically connected with the output side of the power circuit, wherein the output side of the filter circuit is electrically connected with a load;
and the closed-loop control circuit is electrically connected with the output side of the filter circuit and is used for acquiring the output current of the filter circuit as feedback current, filtering out interference current in the feedback current as compensation current, comparing the sum of given current and the compensation current with the feedback current, and adjusting the output of the power circuit according to a current comparison result so that the difference value between the sum of the given current and the compensation current and the feedback current after the power circuit is adjusted is within a preset range.
2. The power supply system of claim 1, wherein the closed loop control circuit comprises a regulation sub-circuit for comparing the sum of the given current and the compensation current with the feedback current and regulating the power circuit output based on the current comparison;
the regulating sub-circuit comprises a current PI regulator and a voltage PI regulator;
the given end of the current PI regulator is connected with the compensation current and the given current, the feedback end of the current PI regulator is connected with the feedback current, the output end of the current PI regulator is electrically connected with the given end of the voltage PI regulator, the feedback end of the voltage PI regulator is connected with the output voltage of the filter circuit, and the output end of the voltage PI regulator is electrically connected with the power circuit.
3. The power supply system of claim 2 wherein said regulation subcircuit further comprises a low order filter electrically connected between said feedback current and the feedback terminal of said current PI regulator.
4. The power supply system of claim 1, wherein the closed-loop control circuit comprises a filtering sub-circuit for filtering out a disturbance current in the feedback current as a compensation current;
the filtering sub-circuit comprises a first filter, a second filter, a third filter, a fourth filter, a fifth filter, a sixth filter;
the output end of the ith filter is electrically connected with the feedback end of the iPI th regulator, the given end of the (i + 1) th PI regulator and the input end of the (i + 1) th filter, and i is a positive integer smaller than N;
the input end of the first filter is connected with the feedback current, the output end of the Nth filter is electrically connected with the feedback end of the Nth regulator, and the given end of the first PI regulator is connected with the feedback current;
and the output ends of the first PI regulator to the second PI regulator are electrically connected with the output side of the adder, and the adder outputs the compensation current.
5. The power supply system according to claim 4, wherein the first to nth filters are high-order filters.
6. The power supply system of claim 1, wherein the power circuit is a linear power circuit or a switching power circuit.
7. The power supply system of claim 1, wherein the filter circuit is an LC filter circuit.
8. An electronic device characterized in that it comprises a power supply system according to any one of claims 1-7.
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| CN201911165971.0A CN110994972B (en) | 2019-11-25 | 2019-11-25 | Power supply system and electronic equipment |
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| CN201911165971.0A CN110994972B (en) | 2019-11-25 | 2019-11-25 | Power supply system and electronic equipment |
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| CN110994972A true CN110994972A (en) | 2020-04-10 |
| CN110994972B CN110994972B (en) | 2021-04-23 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780387A (en) * | 2012-07-25 | 2012-11-14 | 浙江大学 | Control method of inverter |
| US8823448B1 (en) * | 2013-03-29 | 2014-09-02 | Hamilton Sundstrand Corporation | Feed forward active EMI filters |
| US20160261194A1 (en) * | 2014-07-17 | 2016-09-08 | Crane Electronics, Inc. | Dynamic maneuvering configuration for multiple control modes in a unified servo system |
| CN107749714A (en) * | 2017-10-24 | 2018-03-02 | 北京科诺伟业科技股份有限公司 | A kind of three-phase crisscross parallel two-way DC converter current-sharing control method |
| CN110442177A (en) * | 2019-08-12 | 2019-11-12 | 中国科学技术大学 | A kind of power control system |
| CN110460256A (en) * | 2019-08-16 | 2019-11-15 | 上海交通大学 | A kind of inverter and its control method |
-
2019
- 2019-11-25 CN CN201911165971.0A patent/CN110994972B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780387A (en) * | 2012-07-25 | 2012-11-14 | 浙江大学 | Control method of inverter |
| US8823448B1 (en) * | 2013-03-29 | 2014-09-02 | Hamilton Sundstrand Corporation | Feed forward active EMI filters |
| US20160261194A1 (en) * | 2014-07-17 | 2016-09-08 | Crane Electronics, Inc. | Dynamic maneuvering configuration for multiple control modes in a unified servo system |
| CN107749714A (en) * | 2017-10-24 | 2018-03-02 | 北京科诺伟业科技股份有限公司 | A kind of three-phase crisscross parallel two-way DC converter current-sharing control method |
| CN110442177A (en) * | 2019-08-12 | 2019-11-12 | 中国科学技术大学 | A kind of power control system |
| CN110460256A (en) * | 2019-08-16 | 2019-11-15 | 上海交通大学 | A kind of inverter and its control method |
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