CN102723756A - Full-digital power controller for satellite - Google Patents
Full-digital power controller for satellite Download PDFInfo
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- CN102723756A CN102723756A CN2012101998302A CN201210199830A CN102723756A CN 102723756 A CN102723756 A CN 102723756A CN 2012101998302 A CN2012101998302 A CN 2012101998302A CN 201210199830 A CN201210199830 A CN 201210199830A CN 102723756 A CN102723756 A CN 102723756A
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Abstract
The invention discloses a full-digital power controller for a satellite. The full-digital power controller comprises a shunt, a charging controller, a discharging regulator, a balance controller and a central processor based on a DSP (digital signal processor). The power controller adopts a three-region control mode including a shunt region, a charging region and a discharging region, and the three regions are distinguished by using the DSP for sampling bus voltage. The balance controller samples the voltage of each lithium battery through the DSP to realize a balance control algorithm in DSP software so as to realize balance control among the lithium batteries. By the full-digital power controller for the satellite, full-digital control of a satellite power system is realized, a great quantity of hardware circuits, such as MEA (multi-electrode array) circuits and PWM (pulse width modulation) generation circuits are saved, the system integrity is improved, and system reliability is fundamentally and greatly improved.
Description
Technical field
The present invention relates to satellite and use power-supply controller of electric, more precisely be based on the digital satellite that DSP is controlled to be core and use power-supply controller of electric.
Background technology
The satellite power supply subsystem adopts solar battery array-storage battery system, scalable dc bus system power supply plan usually; Life period; Power subsystem is accomplished the uninterrupted power supply to each subsystem load on the star, comprises the ignition of long-term power, short term power and priming system.Illumination period is accomplished the solar battery array energy resource collecting; Be converted into electric energy to solar energy; To the charging of electric and accumulators group, the shade phase by storage battery through the discharge adjuster when bussed supply or illumination period bearing power surpass the solar battery array power supply capacity, by the storage battery supplementary power.
The MEA circuit of the power-supply system controller that satellite is commonly used at present, the generation circuit of the PWM of shunt, the PWM of charge controller produces circuit; The PWM of discharge adjuster produces circuit, and the switching tube drive circuit of balance controller all is to build through the relevant hardware circuit, and each road PWM output all needs corresponding PWM hardware generative circuit; Complex circuit designs; Integrated level is low, and used electronic devices and components are also more, and used electronic devices and components are many more; Reliability of products is just low more, and required design and the debug time of product is also long more.
For this reason, power-supply controller of electric should improve the integrated level of system as far as possible, reduces electronic devices and components; Save the Products Development cycle; Particularly for being applied on the moonlet such as quick response, the design of power-supply controller of electric, debugging cycle require short, and volume, weight all require little as far as possible; So, the integrated level of power-supply controller of electric is had relatively high expectations.
The distribution mode of traditional sun battle array is closed configuration, is divided configuration, and power conditioning technology commonly used has S3R type, S4R type, mixed type etc., the present invention is based on the S3R type that closes configuration.But, can be applied in the branch configuration equally, S4R type, mixed type etc.
Do not have at present to find explanation or report, do not collect both at home and abroad similarly data as yet yet with similar techniques of the present invention.
Summary of the invention
For the integrated level that solves existing power-supply controller of electric is not high, the electronic hardware circuit is than shortcomings such as complicacies, and the present invention proposes a kind of satellite and uses digital power-supply controller of electric; Utilize the present invention, realize sampling, shunt, charge controller, each respective tubes of discharge adjuster are realized PWM control busbar voltage through DSP; To the sampling of charge in batteries electric current, to the sampling of discharge regulator feedback voltage, to the sampling of battery tension; Software to three territory control algolithms is realized, the software of balanced control algolithm is realized, to the software closed-loop control of discharge regulator output voltage; To charge controller current-limiting charge control etc., significantly reduced building of hardware circuit, reduced the use of electronic devices and components; Improved the integrated level of system, thereby, the reliability of system also improved.
In order to reach the foregoing invention purpose, the technical scheme that the present invention is adopted for its technical problem of solution provides a kind of digital power-supply controller of electric based on DSP, and this device comprises:
Shunt, the unnecessary energy of shunting when being used for illumination period sun battle array output energy surplus;
Charge controller, control charging current when being used for illumination period and charging a battery;
The discharge adjuster is used for shade phase or illumination period storage battery and unites when power supply storage battery output energy and give whole star power supply;
Balance controller is used for the equilibrium control of lithium battery at charge and discharge process; And
Based on the central processing unit of DSP, be used to realize the PWM control of the switching tube of shunt, charge controller, discharge adjuster, and the sampling of busbar voltage; The sampling of battery tension, the sampling of discharge adjuster output current, the sampling of charge controller charging current; The realization of three territory control algolithms; The realization of balanced control algolithm, the realization of charge controller flow-dividing control, the realization of discharge adjuster closed-loop control etc.
The control of three territories of power-supply controller of electric of the present invention is through DSP sampling busbar voltage, in dsp software, realize three territories voltage division and carry out control corresponding.Said three territory control modes are divided into branch basin, charging territory, discharge territory; Through DSP sampling busbar voltage three territories are distinguished, in minute basin, be in full shunting according to the bus voltage value judgement system that sets; Do not shunt; Or part divides stream mode, dividing under the stream mode in part, and the PWM delivery outlet through DSP carries out PWM control to corresponding shunt and shunts with implementation part; Under the state of charging territory, realize charge controller is controlled through the PWM delivery outlet of DSP, realize the current limliting constant current charge; Under the state of discharge territory, the PWM delivery outlet of DSP is controlled to realize discharge control the discharge adjuster.
The control of the switching tube of shunt according to the invention realizes through the PWM output control of DSP.
The control of the switching tube of charge controller according to the invention realizes through the PWM output control of DSP.
The control of the switching tube of discharge adjuster according to the invention realizes that through the PWM output control of DSP the closed-loop control of output voltage realizes through dsp software.
The voltage sample of each monomer of batteries according to the invention is realized through DSP.
The switching tube of balance controller according to the invention is realized through the I/O mouth output control of DSP.
The balanced control algolithm of balance controller according to the invention realizes through software among the DSP.
The digital power-supply controller of electric of the present invention, owing to adopt technique scheme, PWM exports all and is realized by DSP, thereby produces circuit need for shunt, charge controller, the independent PWM of discharge regulator configuration, has simplified the design of hardware circuit greatly; Utilize DSP sampling busbar voltage and realize three territory control algolithms, saved the method that realizes the control of three territories through a large amount of comparison circuits through software; Adopt the output current of DSP sampling discharge adjuster and the closed-loop control of the adjuster of in software, realizing discharging, saved through building the hardware closed-loop control circuit and realized the method for FEEDBACK CONTROL; Adopt the charging current of DSP sampling charge controller and in software, realize the algorithm of current-limiting charge, saved and built special-purpose current limliting hardware circuit; Adopt DSP sampling storage battery, and in software, realize balanced control algolithm, and accomplish the control of the switching tube of balance controller, saved the setting up of slave computer of the special use that is used to accomplish balanced control algolithm through the I/O mouth of DSP; So the present invention has simplified the design of power-supply controller of electric greatly, owing to saved a lot of electronic devices and components, also improved reliability of products simultaneously.
Description of drawings
Fig. 1 is the device structure block diagram of the digital power-supply controller of electric of satellite of the present invention.
Embodiment
Elaborate in the face of embodiments of the invention down, present embodiment is that prerequisite is implemented with technical scheme of the present invention, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Fig. 1 is the digital power-supply controller of electric device structure of a satellite of the present invention block diagram; Shown in the embodiment of Fig. 1, this device comprises: shunt SHUNT; The DSP central processing unit; Charge controller BCR; Discharge adjuster BDR; Balance controller; Wherein: the unnecessary energy of shunting when shunt is used for illumination period sun battle array output energy surplus; Control charging current when charge controller is used for illumination period and charges a battery; The discharge adjuster is used for shade phase or illumination period storage battery when uniting power supply, and storage battery output energy is given whole star power supply; Balance controller is used for the equilibrium control of lithium battery at charge and discharge process; Be used to realize the PWM control of the switching tube of shunt, charge controller, discharge adjuster based on the central processing unit of DSP, and the sampling of busbar voltage, the sampling of battery tension; The sampling of discharge adjuster output current; The sampling of charge controller charging current, the realization of three territory control algolithms, the realization of balanced control algolithm; The realization of charge controller flow-dividing control, the realization of discharge adjuster closed-loop control etc.
In the present embodiment, shunt SHUNT: mainly form by the PWM drive circuit of diverting switch pipe and corresponding switching tube;
In the present embodiment, charge controller BCR: mainly by the charging current sample circuit, the PWM drive circuit of charging diverting switch pipe and corresponding switching tube is formed;
In the present embodiment, discharge adjuster BDR: employing be voltage-dropping type discharge adjuster, if adopt booster type discharge adjuster, scheme of the present invention is suitable equally;
In the present embodiment, balance controller: mainly form by diverting switch pipe and storage battery sampled voltage modulate circuit;
In the present embodiment, DSP central processing unit: mainly form by the voltage modulate circuit of DSP and sampling busbar voltage.
In the present embodiment; Busbar voltage transforms in the receptible AD input voltage range of DSP (0 ~ 3.3V) behind the overvoltage modulate circuit; DSP converts the voltage of simulation to the corresponding digital voltage; Realize three territories of busbar voltage are divided through software, make this power-supply controller of electric be in the shunting that realizes in the branch basin sun battle array output current detecting busbar voltage, and corresponding part diverting switch pipe is realized PWM control through the PWM delivery outlet; Be in the charging control domain detecting busbar voltage, realize charging control, and, realize PWM control, thereby realize current-limiting charge control the charge switch pipe through software according to the charging current that samples to storage battery; Be in discharge and regulate in the scope of territory detecting busbar voltage, to the discharge control of storage battery, the output voltage of sampling discharge adjuster is realized the closed-loop control of discharge adjuster through software in DSP, guarantees that the discharge adjuster exports corresponding stable voltage; When charge in batteries, real-time sampling respectively saves the voltage of monomer, realizes balanced control algolithm through software, drives corresponding storage battery diverting switch pipe, accomplishes the equilibrium control to each monomer of batteries;
Can find out that from above description the present embodiment power-supply controller of electric adopts three territory control modes, be divided into branch basin, charging territory, discharge territory; Through DSP sampling busbar voltage three territories are distinguished, in minute basin, be in full shunting according to the bus voltage value judgement system that sets; Do not shunt; Or partly divide stream mode, and dividing under the stream mode in part, through the PWM delivery outlet of DSP corresponding switching tube realization PWM is controlled and shunt with implementation part.Under the state of charging territory, realize the switching tube of charge controller is controlled through the PWM delivery outlet of DSP, realize the current limliting constant current charge.Under the state of discharge territory, the PWM delivery outlet of DSP is controlled to realize discharge control the switching tube of discharge adjuster.Balance controller is realized balanced control algolithm through the voltage of each lithium battery monomer of DSP sampling in dsp software, thereby realizes the equilibrium control between each monomer.
In sum, the present invention is based on the digital power-supply controller of electric of DSP, realize sampling busbar voltage through DSP; Shunt, charge controller, each respective tubes of discharge adjuster are realized PWM control, to the sampling of charge in batteries electric current, to the sampling of discharge regulator feedback voltage; To the sampling of battery tension, the software of three territory control algolithms is realized, the software of balanced control algolithm is realized; To the software closed-loop control of discharge regulator output voltage,, the hardware circuit of original power-supply controller of electric is simplified to the control of charge controller software current-limiting charge etc.; Make the reliability of system be improved; The weight and volume of system can reduce accordingly, and the integrated level of product improves greatly, has shortened the design and the debugging cycle of product.
More than be the preferred embodiments of the present invention, obviously, those skilled in the art can carry out various changes and distortion and not break away from the spirit and scope of the present invention with digital power-supply controller of electric satellite of the present invention; Such as, be applied in the sun battle array of branch formation formula, be used in S4R or the mixed type power regulating system; Be used in the discharge adjuster of boost mode; Be used in ickel-cadmium cell group, the Ni-H cell group, be used in the shunt of multichannel more, be used in the discharge adjuster of multichannel more; Perhaps use the pattern of two DSP, many DSP; Like this, if these modifications and distortion belong within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and is out of shape interior.
Claims (9)
1. a satellite is used digital power-supply controller of electric, it is characterized in that, this device comprises:
Shunt, the unnecessary energy of shunting when being used for illumination period sun battle array output energy surplus;
Charge controller, control charging current when being used for illumination period and charging a battery;
The discharge adjuster is used for shade phase or illumination period storage battery and unites when power supply storage battery output energy and give whole star power supply;
Balance controller is used for the equilibrium control of lithium battery at charge and discharge process; And
Based on the central processing unit of DSP, be used to realize the PWM control of the switching tube of shunt, charge controller, discharge adjuster, and the sampling of busbar voltage; The sampling of battery tension, the sampling of discharge adjuster output current, the sampling of charge controller charging current; The realization of three territory control algolithms; The realization of balanced control algolithm, the realization of charge controller flow-dividing control, the realization of discharge adjuster closed-loop control.
2. satellite as claimed in claim 1 is used digital power-supply controller of electric, it is characterized in that: the control of three territories of this power-supply controller of electric is through DSP sampling busbar voltage, in dsp software, realize three territories voltage division and carry out control corresponding.
3. satellite as claimed in claim 2 is used digital power-supply controller of electric, it is characterized in that: said three territory control modes are divided into branch basin, charging territory, discharge territory, through DSP sampling busbar voltage three territories are distinguished; In minute basin; Bus voltage value judgement system according to setting is in full shunting, do not shunt, or part is divided stream mode; Dividing under the stream mode in part, the PWM delivery outlet through DSP carries out PWM control to corresponding shunt and shunts with implementation part; Under the state of charging territory, realize charge controller is controlled through the PWM delivery outlet of DSP, realize the current limliting constant current charge; Under the state of discharge territory, the PWM delivery outlet of DSP is controlled to realize discharge control the discharge adjuster.
4. use digital power-supply controller of electric like each described satellite of claim 1-3, it is characterized in that: the control of the switching tube of said shunt realizes through the PWM output control of DSP.
5. use digital power-supply controller of electric like each described satellite of claim 1-3, it is characterized in that: the control of the switching tube of said charge controller realizes through the PWM output control of DSP.
6. use digital power-supply controller of electric like each described satellite of claim 1-3, it is characterized in that: the control of the switching tube of said discharge adjuster realizes that through the PWM output control of DSP the closed-loop control of output voltage realizes through dsp software.
7. use digital power-supply controller of electric like each described satellite of claim 1-3, it is characterized in that: the voltage sample of said each monomer of batteries is realized through DSP.
8. use digital power-supply controller of electric like each described satellite of claim 1-3, it is characterized in that: the switching tube of said balance controller is realized through the I/O mouth output control of DSP.
9. use digital power-supply controller of electric like each described satellite of claim 1-3, it is characterized in that: the balanced control algolithm of said balance controller realizes through software among the DSP.
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| CN2012101998302A CN102723756A (en) | 2012-06-18 | 2012-06-18 | Full-digital power controller for satellite |
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| CN2012101998302A CN102723756A (en) | 2012-06-18 | 2012-06-18 | Full-digital power controller for satellite |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236731A (en) * | 2013-05-03 | 2013-08-07 | 深圳市航天新源科技有限公司 | Power supply controller framework based on separated charge and control method thereof |
| CN103279077A (en) * | 2013-04-25 | 2013-09-04 | 上海卫星工程研究所 | Ground power supply intelligent control system for satellite electrical test |
| CN103323668A (en) * | 2013-06-18 | 2013-09-25 | 北京空间飞行器总体设计部 | Spacecraft power source controller bus electromagnetic compatibility conducted emission frequency domain testing method |
| CN103723288A (en) * | 2013-12-19 | 2014-04-16 | 上海卫星工程研究所 | Miniaturized satellite open power supply and distribution subsystem |
| CN103956822A (en) * | 2014-05-22 | 2014-07-30 | 哈尔滨工业大学 | Quickly-integrated satellite power system |
| CN104300662A (en) * | 2014-10-30 | 2015-01-21 | 哈尔滨工业大学 | Pico-satellite satellite-borne power system achieved based on pure hardware |
| CN105304963A (en) * | 2015-04-16 | 2016-02-03 | 上海空间电源研究所 | Two-group storage battery balanced discharge control method for satellite power supply system |
| CN105471037A (en) * | 2015-12-24 | 2016-04-06 | 中国电子科技集团公司第十八研究所 | Current-limiting control circuit for satellite battery discharge regulator |
| CN105553072A (en) * | 2015-12-21 | 2016-05-04 | 北京空间飞行器总体设计部 | Multiphase digital discharge adjustment method suitable for spacecraft power supply system |
| CN105610305A (en) * | 2015-12-30 | 2016-05-25 | 中国电子科技集团公司第十八研究所 | Current-limiting power supply control circuit of satellite solar cell array parallel regulator |
| CN105730718A (en) * | 2016-05-10 | 2016-07-06 | 中国人民解放军国防科学技术大学 | Multifunctional structure lithium battery system power management unit for spacecraft |
| CN106410936A (en) * | 2016-08-31 | 2017-02-15 | 航天东方红卫星有限公司 | High-power high-efficiency satellite power supply system based on high voltage and low voltage double buses |
| CN106647920A (en) * | 2016-12-23 | 2017-05-10 | 山东航天电子技术研究所 | Satellite power controller |
| CN112421714A (en) * | 2020-11-06 | 2021-02-26 | 上海空间电源研究所 | Current-limiting control method of discharge regulator for satellite |
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Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103279077B (en) * | 2013-04-25 | 2015-04-29 | 上海卫星工程研究所 | Ground power supply intelligent control system for satellite electrical test |
| CN103279077A (en) * | 2013-04-25 | 2013-09-04 | 上海卫星工程研究所 | Ground power supply intelligent control system for satellite electrical test |
| CN103236731A (en) * | 2013-05-03 | 2013-08-07 | 深圳市航天新源科技有限公司 | Power supply controller framework based on separated charge and control method thereof |
| CN103323668A (en) * | 2013-06-18 | 2013-09-25 | 北京空间飞行器总体设计部 | Spacecraft power source controller bus electromagnetic compatibility conducted emission frequency domain testing method |
| CN103323668B (en) * | 2013-06-18 | 2015-06-24 | 北京空间飞行器总体设计部 | Spacecraft power source controller bus electromagnetic compatibility conducted emission frequency domain testing method |
| CN103723288A (en) * | 2013-12-19 | 2014-04-16 | 上海卫星工程研究所 | Miniaturized satellite open power supply and distribution subsystem |
| CN103723288B (en) * | 2013-12-19 | 2015-11-18 | 上海卫星工程研究所 | Micro-satellite is open for sub power distribution system |
| CN103956822A (en) * | 2014-05-22 | 2014-07-30 | 哈尔滨工业大学 | Quickly-integrated satellite power system |
| CN104300662A (en) * | 2014-10-30 | 2015-01-21 | 哈尔滨工业大学 | Pico-satellite satellite-borne power system achieved based on pure hardware |
| CN105304963A (en) * | 2015-04-16 | 2016-02-03 | 上海空间电源研究所 | Two-group storage battery balanced discharge control method for satellite power supply system |
| CN105304963B (en) * | 2015-04-16 | 2017-11-21 | 上海空间电源研究所 | A kind of group storage battery balanced discharge control method of satellite power system two |
| CN105553072A (en) * | 2015-12-21 | 2016-05-04 | 北京空间飞行器总体设计部 | Multiphase digital discharge adjustment method suitable for spacecraft power supply system |
| CN105553072B (en) * | 2015-12-21 | 2018-04-10 | 北京空间飞行器总体设计部 | A kind of multiphase digital electric discharge adjusting method suitable for spacecraft power supply system |
| CN105471037A (en) * | 2015-12-24 | 2016-04-06 | 中国电子科技集团公司第十八研究所 | Current-limiting control circuit for satellite battery discharge regulator |
| CN105610305A (en) * | 2015-12-30 | 2016-05-25 | 中国电子科技集团公司第十八研究所 | Current-limiting power supply control circuit of satellite solar cell array parallel regulator |
| CN105610305B (en) * | 2015-12-30 | 2019-03-26 | 中国电子科技集团公司第十八研究所 | Satellite vapour image parallel regulator current limliting power-supplying circuit |
| CN105730718A (en) * | 2016-05-10 | 2016-07-06 | 中国人民解放军国防科学技术大学 | Multifunctional structure lithium battery system power management unit for spacecraft |
| CN106410936A (en) * | 2016-08-31 | 2017-02-15 | 航天东方红卫星有限公司 | High-power high-efficiency satellite power supply system based on high voltage and low voltage double buses |
| CN106410936B (en) * | 2016-08-31 | 2018-08-31 | 航天东方红卫星有限公司 | A kind of large power high efficiency satellite power system based on high-low pressure double-bus |
| CN106647920A (en) * | 2016-12-23 | 2017-05-10 | 山东航天电子技术研究所 | Satellite power controller |
| CN106647920B (en) * | 2016-12-23 | 2018-01-09 | 山东航天电子技术研究所 | A kind of satellite power supply controller |
| CN112421714A (en) * | 2020-11-06 | 2021-02-26 | 上海空间电源研究所 | Current-limiting control method of discharge regulator for satellite |
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Application publication date: 20121010 |