CN102055211B - Series sequence switch charging shunt control regulating circuit - Google Patents
Series sequence switch charging shunt control regulating circuit Download PDFInfo
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- CN102055211B CN102055211B CN200910198507.1A CN200910198507A CN102055211B CN 102055211 B CN102055211 B CN 102055211B CN 200910198507 A CN200910198507 A CN 200910198507A CN 102055211 B CN102055211 B CN 102055211B
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Abstract
The invention relates to a solar cell array charging shunt regulating circuit and in particular discloses a series sequence switch charging shunt control regulating circuit. The circuit comprises a bus voltage regulating unit, a pulse width modulation (PWM) signal generating unit, a charging shunt interlocking unit, a metal oxide semiconductor field-effect transistor (MOSFET) driving unit, a shunt MOSFET unit and a charging MOSFET unit, wherein the bus voltage regulating unit generates a regulating signal according to bus voltage sampling feedback and bus voltage setting; the PWM signal generating unit converts the regulating signal into a PWM signal; the charging shunt interlocking unit transmits the PWM signal to the shunt MOSFET driving unit or the charging MOSFET unit to be driven according to the charging requirement of a storage battery; and in the process of maintaining the bus voltage, the shunt MOSFET driving unit is controlled to shunt solar cell array power and the charging MOSFET unit is controlled to transmit the solar cell array power to the storage battery according to a driving signal. The shunt regulating circuit is integrated with a charging regulating circuit, and power supply and charging of a solar cell are combined.
Description
Technical field
The invention belongs to space power system-control circuit technical field, relate to a kind of solar battery array charging shunting regulating circuit.
Background technology
Satellite solar cell input surplus power process original adoption resistance loss formula shunting and partial linear Switching Shunt mode, the oneself power consumption of adjustment component is very large, and be arranged on outside satellite capsule, work under bad environment, reliability is low.Last century, the seventies European Space Agency proposed S3R power conditioning technology, and namely sequence type Switching Shunt regulates, and sun battle array surplus power is directly shunted by high-power V-metal-oxide-semiconductor.This dividing technology has the features such as self-heating amount is little, switching characteristic is good, in China's multi-satellite model, obtains application.
The present invention is on the basis of S3R power conditioning technology, propose tandem type sequence switch charger assembled by several branch current control regulation technology, further shunt regulating circuit and charge adjustment circuit are integrated, achieve that solar cell is powered, battle array of charging unification design, ensure that solar battery array energy priority is load supplying, when meeting load for battery charging, then batteries be full of after shunt again, make the energy of solar battery array obtain utilization to greatest extent like this.This technology both overcome charge controller in S3R technology to be directly connected on bus bring the shortcoming that power loss is excessive and weight is too high, overcome again mixed type power conditioning technology and use the difficulty that charge independence battle array efficiency is lower, decrease the complexity of control.
Summary of the invention
Technical problem to be solved by this invention is a kind of solar battery array charging of exploitation shunting regulating circuit--series sequence switch charging shunt control regulating circuit.The restriction control technology of charging and flow-dividing control adjustment has been dissolved in the present invention, efficiently avoid mutual interference when charging and shunting MOSFET work, ensures stablizing of bus output voltage.
The technical scheme that the present invention adopts for its technical problem of solution is as follows: a kind of series sequence switch charging shunt control regulating circuit, comprise the parts such as varying DC link voltage unit, pwm signal generation unit, charging shunting interlocking unit, MOSFET driver element, shunting MOSFET unit and charging MOSFET unit, varying DC link voltage unit produces conditioning signal according to busbar voltage sampling feedback and busbar voltage setting; Conditioning signal is converted to pulse-width signal by pwm signal generation unit; Charging shunting interlocking unit requires pulse-width signal to be delivered to shunting MOSFET unit drives or charging MOSFET unit drives according to charge in batteries; While maintenance busbar voltage, control shunting MOSFET unit according to drive singal and solar battery array power is delivered to storage battery by solar battery array power dividing, charging MOSFET unit.
Shunt regulating circuit and charge adjustment circuit are integrated by the present invention, achieve that solar cell is powered, battle array of charging unification design, ensure that solar battery array energy priority is load supplying, it is battery charging when meeting load, batteries is shunted after being full of again again, make the energy of solar battery array obtain utilization to greatest extent like this, have a wide range of applications in space power system field.
Relative to prior art, the present invention completes charging by the demand for control of system and regulates and shunt regulating control, dissolve in the restriction control technology of charging and flow-dividing control adjustment in the design, efficiently avoid mutual interference when charging and shunting MOSFET work, ensure the stable of bus output voltage.Its major advantage has: 1) bus filter can be smaller; 2) module is only had to be in switch modulation state when any operating state; 3) the two territories controls that power supply exports are realized; 4) dynamic load response ability is good; 5) multilevel redundancy jointly can be taked to design thus avoid single point failure with solar wing; 6) simplicity of design and easily shape produce by batch; 7) backup without the need to complexity designs; 8) hear rate is low.
Accompanying drawing explanation
Fig. 1 is theory diagram of the present invention.
Fig. 2 is the hardware configuration schematic diagram that the present invention specifically implements.
Embodiment
Below in conjunction with the drawings and specific embodiments, set forth the present invention further.These embodiments are interpreted as only being not used in for illustration of the present invention limiting the scope of the invention.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalence changes and modification fall into the scope of the claims in the present invention equally.
As shown in Figure 1, a kind of series sequence switch charging shunt control regulating circuit that the preferred embodiment of the present invention provides, comprise the parts such as varying DC link voltage unit, pwm signal generation unit, charging shunting interlocking unit, MOSFET driver element, shunting MOSFET unit and charging MOSFET unit, varying DC link voltage unit produces conditioning signal according to busbar voltage sampling feedback and busbar voltage setting; Conditioning signal is converted to pulse-width signal by pwm signal generation unit; Charging shunting interlocking unit requires pulse-width signal to be delivered to shunting MOSFET unit drives or charging MOSFET unit drives according to charge in batteries; While maintenance busbar voltage, control shunting MOSFET unit according to drive singal and solar battery array power is delivered to storage battery by solar battery array power dividing, charging MOSFET unit.
As shown in Figure 2, series sequence switch charging shunt control regulating circuit of the present invention realizes by discrete hardware circuit.
Circuit adopts SG1525 chip as varying DC link voltage unit and pwm signal generation unit, and bus voltage feedback and busbar voltage benchmark are sent into from SG1525 chip 1,2 pin, to compare produce pwm signal and exported by 11,14 pin through SG1525 chip with oscillator.Two paths of signals forms MOSFET control signal after circuit synthesis.If charging control signal is high level, represents and allow charging, then Q1 conducting, the control signal being sent to shunting MOSFET remains low level; Q2 according to the conducting of MOSFET control signal or shutoff, thus drives charging MOSFET conducting or shutoff, makes solar battery array energy when keeping busbar voltage stable to charge in batteries.If charging control signal is low level, represents and forbid charging, then Q2 keeps turning off, and charging MOSFET keeps turning off, no longer to charge in batteries; Q1 keeps turning off, and MOSFET control signal is sent to the push-pull driver circuit of Q3, Q4 composition, drives shunting MOSFET conducting or shutoff, is shunted by energy unnecessary for sun battle array when keeping busbar voltage stable.
Claims (1)
1. a series sequence switch charging shunt control regulating circuit, it is characterized in that, comprise varying DC link voltage unit, pwm signal generation unit, charging shunting interlocking unit, MOSFET driver element, shunting MOSFET unit and charging MOSFET unit, MOSFET driver element comprises shunting MOSFET driver element and charging MOSFET driver element; Varying DC link voltage unit produces conditioning signal according to busbar voltage sampling feedback and busbar voltage setting; Conditioning signal is converted to pulse-width signal by pwm signal generation unit; Charging shunting interlocking unit requires pulse-width signal to be delivered to shunting MOSFET driver element or charging MOSFET driver element according to battery charging; While maintenance busbar voltage, control shunting MOSFET unit according to drive singal and solar battery array power is delivered to batteries by solar battery array power dividing, charging MOSFET unit;
Q1 is the first transistor, and Q2 is transistor seconds, and Q3 is third transistor, and Q4 is the 4th transistor; Q5 is shunting MOSFET unit, and Q6 is charging MOSFET unit;
Described series sequence switch charging shunt control regulating circuit adopts discrete hardware circuit to realize, adopt SG1525 chip as varying DC link voltage unit and pwm signal generation unit, bus voltage feedback and busbar voltage benchmark are from SG1525 chip 1,2 pin are sent into, and to compare produce pwm signal and exported by 11,14 pin through SG1525 chip with oscillator; Two paths of signals forms MOSFET control signal after circuit synthesis; If MOSFET control signal is high level, represents and allow charging, then Q1 conducting, the control signal being sent to shunting MOSFET remains low level; Q2 according to the conducting of MOSFET control signal or shutoff, thus drives charging MOSFET conducting or shutoff, makes solar battery array energy when keeping busbar voltage stable to charge in batteries; If MOSFET charging control signal is low level, represents and forbid charging, then Q2 keeps turning off, and charging MOSFET keeps turning off, no longer to charge in batteries; Q1 keeps turning off, and MOSFET control signal is sent to the push-pull driver circuit of Q3, Q4 composition, drives shunting MOSFET conducting or shutoff, is shunted by energy unnecessary for sun battle array when keeping busbar voltage stable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198507.1A CN102055211B (en) | 2009-11-10 | 2009-11-10 | Series sequence switch charging shunt control regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910198507.1A CN102055211B (en) | 2009-11-10 | 2009-11-10 | Series sequence switch charging shunt control regulating circuit |
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| Publication Number | Publication Date |
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| CN102055211A CN102055211A (en) | 2011-05-11 |
| CN102055211B true CN102055211B (en) | 2015-04-15 |
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| CN200910198507.1A Active CN102055211B (en) | 2009-11-10 | 2009-11-10 | Series sequence switch charging shunt control regulating circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3190680A1 (en) * | 2016-01-07 | 2017-07-12 | Samsung SDI Co., Ltd | Battery protection circuit |
| EP3211752A1 (en) * | 2016-02-25 | 2017-08-30 | Samsung SDI Co., Ltd | Battery pack |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570788A (en) * | 2012-02-15 | 2012-07-11 | 浪潮电子信息产业股份有限公司 | Soft start power supply capable of effectively suppressing start-up noise |
| CN104113205B (en) * | 2013-04-18 | 2018-04-24 | 深圳航天东方红海特卫星有限公司 | A kind of shunt regulating circuit |
| CN104426197A (en) * | 2013-09-10 | 2015-03-18 | 上海空间电源研究所 | Solar battery array power supplying and charging control system |
| CN104378060A (en) * | 2014-11-18 | 2015-02-25 | 上海空间电源研究所 | Frequency modulation shunt control device |
| CN106300326B (en) * | 2016-08-19 | 2018-10-09 | 北京空间飞行器总体设计部 | A kind of solar cell Switching Shunt protection circuit |
| CN106428637B (en) * | 2016-10-14 | 2019-03-26 | 深圳航天科技创新研究院 | A kind of full electric propulsion power system |
| CN111030077B (en) * | 2019-12-23 | 2021-08-13 | 中国电子科技集团公司第十八研究所 | Shunt regulation circuit for solar cell array switch and regulation method based on shunt regulation circuit |
| CN111416335B (en) * | 2020-04-30 | 2021-04-06 | 上海空间电源研究所 | Double-bus solar cell array output power control system |
-
2009
- 2009-11-10 CN CN200910198507.1A patent/CN102055211B/en active Active
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3190680A1 (en) * | 2016-01-07 | 2017-07-12 | Samsung SDI Co., Ltd | Battery protection circuit |
| US10122191B2 (en) | 2016-01-07 | 2018-11-06 | Samsung Sdi Co., Ltd. | Battery protection circuit |
| EP3211752A1 (en) * | 2016-02-25 | 2017-08-30 | Samsung SDI Co., Ltd | Battery pack |
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| Publication number | Publication date |
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| CN102055211A (en) | 2011-05-11 |
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