CN102541144A - Method for implementing alternating current-direct current (AC-DC) general solid state power controller and controller - Google Patents
Method for implementing alternating current-direct current (AC-DC) general solid state power controller and controller Download PDFInfo
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Abstract
The invention discloses a method for implementing an alternating current-direct current (AC-DC) general solid state power controller and the AC-DC general solid state power controller. Two direct current solid state power controllers are connected back to back in a reverse series mode; the power input end of one direct current solid state power controller serves as the power input end of the AC-DC general solid state power controller and is connected with a direct current power supply or an alternating current power supply, and the power output end of the direct current solid state power controller is connected with the power output end of the other direct current solid state power controller; and the power input end of the other direct current solid state power controller serves as the power output end of the AC-DC general solid state power controller and is connected to a direct current power supply reference ground or an alternating current power supply reference ground through a load. By the invention, the direct current solid state power controller and an alternating current solid state power controller can be generally used and interchanged, and research and development cost and maintenance cost can be lowered. The AC-DC general solid state power controller has a reverse blocking function, effectively suppresses magnetizing inrush current with an alternating current transformer load and is suitable for an alternating current power supply system with an optional frequency.
Description
Technical field
The invention belongs to power electronics and electrical technology field, particularly a kind of implementation method of AC/DC universal solid-state power controller and AC/DC universal solid-state power controller.
Background technology
Solid-state power controller (Solid State Power Controller; Be called for short SSPC) be the intelligent power distribution device that constitutes by semiconductor devices that produces along with the development of aircraft distribution system, can accept the control signal of host computer and report its status information; When overload takes place in load, according to the tripping operation of anti-delay characteristic, protection circuit and load equipment; When load was short-circuited, load fault was cut off in quick acting in the time of tens microseconds; Solid-state power controller has no electric arc, contactless, noiseless, response is fast, electromagnetic interference (EMI) is little, reliability is high and be convenient to advantages such as computer remote control, is widely used in occasions such as domestic power grid, aerospace vehicle, tank, automobile, naval vessels.
The master power switch pipe of DC solid power controller generally is made up of single power MOSFET at present; As in patent ZL200510038027.0; Proposed the control method that employing " is opened slowly, turn-offed slowly ", can good compatibility all have been arranged resistive, perceptual, capacitive load; There is body diode in the main switch power MOSFET but its deficiency is, the DC solid power controller does not possess reverse blocking capability; And the master power switch of alternating current solid-state power controller generally is made up of bidirectional triode thyristor or two power MOSFET anti-series at present; Its control strategy generally adopts no-voltage to open the control strategy with zero-current switching; Can only control and protect AC load, and no-voltage big problem of excitation surge current when opening control strategy with zero-current switching and having the band transformer load.Traditional DC solid power controller and alternating current solid-state power controller can not be realized general and exchange.
Summary of the invention
The present invention is directed to the deficiency of pointing out in the aforementioned background art, a kind of method of utilizing the DC solid power controller to realize the AC/DC universal solid-state power controller is provided, the technical scheme that is adopted is following:
A kind of implementation method of AC/DC universal solid-state power controller; It is characterized in that: adopt two DC solid power controllers company of playing a reversed role back-to-back; The power input end of one of them DC solid power controller connects direct current or AC power as the power input end of AC/DC universal solid-state power controller; The power take-off of said DC solid power controller links to each other with the power take-off of another DC solid power controller, and the power input end of said another DC solid power controller is connected to direct current or AC power with reference to ground as the power take-off of AC/DC universal solid-state power controller through load; Two DC solid power controllers receive the same control command of opening or turn-off, and open or turn-off synchronously; When load just often, two DC solid power controllers are opened synchronously or are turn-offed; When load faulty; One of them DC solid power controller of two DC solid power controllers at first turn-offs; Another one DC solid power controller receives at once and turn-offs the command synchronization shutoff, and final two DC solid power controllers all turn-off, and realize the isolation of load fault.
The present invention also provides a kind of AC/DC universal solid-state power controller; It is characterized in that the DC solid power controller and the logic configuration circuit of the company of playing a reversed role constitute back-to-back by two; The power input end of one of them DC solid power controller connects direct current or AC power as the power input end of AC/DC universal solid-state power controller; The power take-off of said DC solid power controller links to each other with the power take-off of another DC solid power controller, and the power input end of said another DC solid power controller is connected to direct current or AC power with reference to ground as the power take-off of AC/DC universal solid-state power controller through load; Said logic configuration circuit carries out logical combination to fault tripping signal Fault1, the Fault2 of outside control command CMD and two DC solid power controllers; Realize it to the same control command signal CMD1 of two DC solid power controllers output, CMD2 and open synchronously or turn-off, and to the fault tripping signal Fault of the general solid-state power controller of outside control device output AC/DC.
The beneficial effect that technical scheme of the present invention produces is:
(1) utilizes two DC solid power controllers to constitute the AC/DC universal solid-state power controller, direct current and AC load can both be controlled and protect; And be applicable to the AC power supply system of optional frequency, like the constant frequency of civilian AC power supply system, aircraft and variable frequency AC power system etc.;
(2) utilize two DC solid power controllers to constitute the AC/DC universal solid-state power controller; When two DC solid power controllers all turn-off; The conducting channel of the power MOSFET in two DC solid power controllers all turn-offs; The body diode reverse polyphone of two power MOSFETs; Have positive and negative two-way blocking ability, so the AC/DC universal solid-state power controller has the reverse blocking function when turn-offing, overcome general DC solid power controller and do not had the shortcoming of reverse blocking capability;
(3) utilize two DC solid power controllers to constitute the AC/DC universal solid-state power controllers, the big problem of excitation surge current when having overcome " no-voltage is opened, zero-current switching " alternating current solid-state power controller band AC transformer load;
(4) utilize two DC solid power controllers to constitute the AC/DC universal solid-state power controller, realized the general of direct current and alternating current solid-state power controller and exchanged the cost that can reduce research and development and safeguard.
Description of drawings
Fig. 1 is the theory diagram that two DC solid power controllers constitute the AC/DC universal solid-state power controller;
Fig. 2 is the logic configuration circuit theory diagrams;
Fig. 3 is the theory diagram of DC solid power controller;
Fig. 4 is the timing waveform of DC solid power controller control principle;
Fig. 5 is the detailed diagram when AC/DC universal solid-state power controller and interchange or direct supply and load are connected among the present invention;
Fig. 6 is the timing waveform during AC/DC universal solid-state power controller band AC load among the present invention;
Fig. 7 utilizes digital multi-channel DC solid-state power controller integrated circuit board to constitute the schematic diagram of AC/DC universal solid-state power controller;
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Fig. 1 utilizes the DC solid power controller to constitute the theory diagram of AC/DC universal solid-state power controller; Its method of attachment is: DC solid power controller 1 and DC solid power controller 2 be the company of playing a reversed role back-to-back; Wherein the power input end of DC solid power controller 1 connects direct current or AC power as the power input end of AC/DC universal solid-state power controller; The power take-off of DC solid power controller 1 links to each other with the power take-off of DC solid power controller 2, and the power input end of DC solid power controller 2 is connected to direct current or AC power with reference to ground as the power take-off of AC/DC universal solid-state power controller through load.The logic configuration circuit carries out logical combination to the fault tripping signal Fault1 of the malfunction output terminal output of outside control command CMD, DC solid power controller 1, the fault tripping signal Fault2 that the malfunction output terminal of DC solid power controller 2 is exported; Export same control command signal CMD1, CMD2 to the control command end of two DC solid power controllers respectively; Be used to realize opening synchronously or turn-offing of two DC solid power controllers, and to the fault tripping signal Fault of the general solid-state power controller of outside control device output AC/DC.
The control method of AC/DC universal solid-state power controller is among Fig. 1: the AC/DC universal solid-state power controller receives external control order CMD; After the logic configuration processing of circuit, transmitting control commands signal CMD1 and control command signal CMD2 give DC solid power controller 1 and DC solid power controller 2 respectively; When load just often, two DC solid power controllers are realized simultaneously " open slowly, turn-off slowly ", fault tripping signal Fault1 and fault tripping signal Fault2 are high level, represent non-fault; When the load over current fault; DC solid power controller 1 or DC solid power controller 2 turn-off earlier; Fault tripping signal Fault1 or fault tripping signal Fault2 become low level, and after the peripheral logic configuration circuit was handled, control command signal CMD2 and control command signal CMD1 became low level at once; Turn-off DC solid power controller 2 or DC solid power controller 1 synchronously, at this moment the AC/DC universal solid-state power controller has been realized the isolation of load fault.
Fig. 2 is the logic configuration circuit theory diagrams, constitutes with door by two.The fault tripping signal Fault1 of DC solid power controller 1 and the fault tripping signal Fault2 of DC solid power controller 2 be connected to respectively one of them with the door two input ends; Should with the fault tripping signal Fault of the general solid-state power controller of output terminal output AC/DC of door; And this output terminal also be connected to another with the door an input end; External control order CMD be connected to this another with another input end of door, this another be used to the control command signal CMD1, the CMD2 that realize that two DC solid power controllers are opened synchronously or turn-offed with the output terminal output of door.When load is broken down; DC solid power controller 1 or DC solid power controller 2 detect fault and turn-off; This moment, fault tripping signal Fault1 or Fault2 correspondingly became low level; Control command signal CMD1, CMD2 also correspondingly become low level, and another one DC solid power controller is turn-offed synchronously.
Fig. 3 is the formation block diagram of DC solid power controller exemplary embodiments, comprises with lower module: buffer circuit, state comprehensive with logic latch cicuit, driving circuit, current detecting, overcurrent protection and short-circuit detecting circuit, detection resistance, main switch power MOSFET.This DC solid power controller is accepted control command CMD* break-make control is carried out in load, and when load is broken down, and fault latch circuit and buffer circuit through inside send an effective fault tripping signal Fault* of low level.
As shown in Figure 4; When DC solid power controller control command among Fig. 3 when opening order; The grid source driving voltage of control master power switch pipe begins slow rising from a magnitude of voltage that is higher than cut-in voltage; The rise time of electric current finally makes the complete conducting of master power switch pipe in the control master power switch pipe, realizes the open-minded slowly of DC solid power controller; When DC solid power controller control command is ordered for turn-offing; The grid source driving voltage of control master power switch pipe slowly descends; Thereby the fall time of electric current in the control master power switch pipe, and finally make grid source driving voltage less than cut-in voltage, realize that main switch turn-offs slowly.
Fig. 5 detailed diagram that to be the present invention be connected with load with direct current or AC power:
(1) when AC/DC universal solid-state power controller among Fig. 5 connects direct supply band DC load; If direct supply is a positive supply; Then since among the direct current SSPC2 (DC solid power controller 2) body diode of main power tube consistent with the power supply direction, therefore opening slowly and shutoff slowly by direct current SSPC1 (DC solid power controller 1) control load; When two DC solid power controllers all turn-off; The conducting channel of the power MOSFET in two DC solid power controllers all turn-offs; The body diode reverse polyphone of two power MOSFETs; Have positive and negative two-way blocking ability, AC/DC universal solid-state power controller therefore of the present invention has the reverse blocking function when turn-offing;
(2) when among Fig. 5 during AC/DC universal solid-state power controller band AC load; Because there is body diode in the master power switch pipe in the DC solid power controller; Therefore turn on and off in the process if power supply is in positive half cycle; As shown in Figure 6, then DC solid power controller 2 is in uncontrollable conducting state, realizes " open slowly, turn-off slowly " by DC solid power controller 1; Turn on and off process if power supply is in negative half period, then DC solid power controller 1 is in uncontrollable conducting state, realizes " open slowly, turn-off slowly " by DC solid power controller 2.
Fig. 7 utilizes digital multi-channel DC solid-state power controller integrated circuit board to constitute the schematic diagram of AC/DC universal solid-state power controller.Because all states, logic control order are all handled by microcomputer chip, therefore can under the prerequisite of not changing any hardware, two DC solid power controllers be combined into the AC/DC universal solid-state power controller.In the logical process of microcomputer chip, should these two DC solid power controller passages be carried out synchro control:
1) opening of two DC solid power controller passages turn-offed order and should be sent simultaneously;
2) when one of them passage trips because of load faulty, should turn-off another passage synchronously.
Above embodiment is merely explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of on the technical scheme basis, being done all falls within the protection domain of the present invention.
Claims (5)
1. the implementation method of an AC/DC universal solid-state power controller; It is characterized in that: adopt two DC solid power controllers company of playing a reversed role back-to-back; The power input end of one of them DC solid power controller connects direct current or AC power as the power input end of AC/DC universal solid-state power controller; The power take-off of said DC solid power controller links to each other with the power take-off of another DC solid power controller, and the power input end of said another DC solid power controller is connected to direct current or AC power with reference to ground as the power take-off of AC/DC universal solid-state power controller through load; Two DC solid power controllers receive the same control command of opening or turn-off, and open or turn-off synchronously.
2. the implementation method of AC/DC universal solid-state power controller as claimed in claim 1 is characterized in that: when load just often, two DC solid power controllers are opened synchronously or are turn-offed; When load faulty; One of them DC solid power controller of two DC solid power controllers at first turn-offs; Another one DC solid power controller receives at once and turn-offs the command synchronization shutoff, and final two DC solid power controllers all turn-off, and realize the isolation of load fault.
3. according to claim 1 or claim 2 the implementation method of AC/DC universal solid-state power controller; It is characterized in that: the master power switch pipe of DC solid power controller adopts power MOSFET or IGBT; Control method is: when DC solid power controller control command when opening order; The grid source driving voltage of control master power switch pipe begins slow rising from a magnitude of voltage that is higher than cut-in voltage; The rise time of electric current finally makes the complete conducting of master power switch pipe in the control master power switch pipe, realizes the open-minded slowly of DC solid power controller; When DC solid power controller control command is ordered for turn-offing; The grid source driving voltage of control master power switch pipe slowly descends; Thereby the fall time of electric current in the control master power switch pipe, and finally make grid source driving voltage less than cut-in voltage, realize that main switch turn-offs slowly.
4. AC/DC universal solid-state power controller; It is characterized in that the DC solid power controller and the logic configuration circuit of the company of playing a reversed role constitute back-to-back by two; The power input end of one of them DC solid power controller connects direct current or AC power as the power input end of AC/DC universal solid-state power controller; The power take-off of said DC solid power controller links to each other with the power take-off of another DC solid power controller, and the power input end of said another DC solid power controller is connected to direct current or AC power with reference to ground as the power take-off of AC/DC universal solid-state power controller through load; Said logic configuration circuit carries out logical combination to the fault tripping signal (Fault1, Fault2) of outside control command (CMD) and two DC solid power controllers; Realize it to the same control command signals (CMD1, CMD2) of two DC solid power controllers output and open synchronously or turn-off, and to the fault tripping signal (Fault) of the general solid-state power controller of outside control device output AC/DC.
5. AC/DC universal solid-state power controller as claimed in claim 4; It is characterized in that said logic configuration circuit constitutes with door by two; The fault tripping signal of two DC solid power controllers (Fault1, Fault2) be connected to respectively one of them with the door two input ends; Should and be connected to another and an input end of door with the fault tripping signal (Fault) of the general solid-state power controller of output terminal output AC/DC of door; External control order (CMD) be connected to this another with another input end of door, this another export said control command signal (CMD1, CMD2) with the output terminal of door.
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Cited By (7)
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| CN103683244A (en) * | 2013-12-03 | 2014-03-26 | 天津航空机电有限公司 | Power loop driving circuit and current-limiting method of solid-state power controller |
| CN105116759A (en) * | 2015-08-27 | 2015-12-02 | 南京航空航天大学 | Mixed signal state machine simulation model of AC solid state power controller |
| CN105680673A (en) * | 2014-11-20 | 2016-06-15 | 中国航空工业集团公司雷华电子技术研究所 | Control method achieved based on microcontroller for three-phase AC solid-state switch |
| CN106647344A (en) * | 2015-11-04 | 2017-05-10 | 法雷奥电机设备公司 | Motor vehicle driving module and control unit |
| CN107124168A (en) * | 2017-04-19 | 2017-09-01 | 广州视源电子科技股份有限公司 | Isolated electronic switch circuit |
| CN109149649A (en) * | 2018-10-18 | 2019-01-04 | 北京凯华网联新能源技术有限公司 | Base station photovoltaic based on alternating current-direct current input switch power supply is from grid-connected power supply system |
| CN113777984A (en) * | 2021-09-02 | 2021-12-10 | 郑州中科集成电路与***应用研究院 | Direct-current high-voltage multi-path solid-state power controller |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683244A (en) * | 2013-12-03 | 2014-03-26 | 天津航空机电有限公司 | Power loop driving circuit and current-limiting method of solid-state power controller |
| CN105680673A (en) * | 2014-11-20 | 2016-06-15 | 中国航空工业集团公司雷华电子技术研究所 | Control method achieved based on microcontroller for three-phase AC solid-state switch |
| CN105116759A (en) * | 2015-08-27 | 2015-12-02 | 南京航空航天大学 | Mixed signal state machine simulation model of AC solid state power controller |
| CN105116759B (en) * | 2015-08-27 | 2017-09-05 | 南京航空航天大学 | A kind of mixed signal state machine emulation mode of alternating current solid-state power controller |
| CN106647344A (en) * | 2015-11-04 | 2017-05-10 | 法雷奥电机设备公司 | Motor vehicle driving module and control unit |
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| CN107124168A (en) * | 2017-04-19 | 2017-09-01 | 广州视源电子科技股份有限公司 | Isolated electronic switch circuit |
| CN107124168B (en) * | 2017-04-19 | 2020-07-31 | 广州视源电子科技股份有限公司 | Isolated electronic switch circuit |
| CN109149649A (en) * | 2018-10-18 | 2019-01-04 | 北京凯华网联新能源技术有限公司 | Base station photovoltaic based on alternating current-direct current input switch power supply is from grid-connected power supply system |
| CN109149649B (en) * | 2018-10-18 | 2024-04-09 | 北京凯华网联技术有限公司 | Photovoltaic grid-connected power supply system for base station based on alternating current/direct current input switching power supply |
| CN113777984A (en) * | 2021-09-02 | 2021-12-10 | 郑州中科集成电路与***应用研究院 | Direct-current high-voltage multi-path solid-state power controller |
| CN113777984B (en) * | 2021-09-02 | 2023-12-15 | 郑州中科集成电路与***应用研究院 | DC high-voltage multipath solid-state power controller |
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