CN101465562A - Remote DC load controller - Google Patents
Remote DC load controller Download PDFInfo
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- CN101465562A CN101465562A CNA2007101727653A CN200710172765A CN101465562A CN 101465562 A CN101465562 A CN 101465562A CN A2007101727653 A CNA2007101727653 A CN A2007101727653A CN 200710172765 A CN200710172765 A CN 200710172765A CN 101465562 A CN101465562 A CN 101465562A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
Abstract
The invention relates to a remote direct-current load controller, comprising a load management center module, a plurality of intelligent switch modules and an auxiliary power supply module; the remote direct-current load controller is characterized in that: the load management center module is composed of a data converter, a data transceiver, an interface isolating circuit, a data processor and a control selective circuit; the intelligent switch module is composed of a MOSFET switching tube, a fuse protector, a transient voltage inhibitor, a sampling resistance, a fly-wheel diode, a MOSFET switching tube driving circuit, a current sampling circuit, a voltage sampling circuit, a temperature sensor, a short-circuit protecting circuit, a microprocessor, a control synthesizer, an interface isolating circuit and an isolating power supply. The remote direct-current load controller has the advantages of important mission reliability: when an external data bus loses effect, the controller can use discrete type signal to carry out overriding control; the internal intelligent switch modules have the capacity of directly executing command signals when control software has no effect.
Description
Technical field
The present invention relates to a kind of remote DC load controller.
Background technology
In current Mechatronic control system and distribution system, the control of electrical load is generally had dual mode: a kind of is by traditional electromechanical circuit breaker, contactor, fuse and thermal relay, electric energy transmitting to using electric loading; Another kind is to use solid-state relay to substitute traditional electromechanical circuit breaker or contactor, mixes fuse, thermal relay again, electric energy transmitting to using electric loading.This dual mode all is difficult to obtain the running status of load, does not possess Gernral Check-up and active real-time monitoring and control, also is difficult to carry out accurate protection control at different load characteristics, reaches the purpose of safe and reliable operation.
Summary of the invention
The purpose of this invention is to provide a kind of device of remote DC load control, can carry out Long-distance Control to DC load, know the mode of operation and the running status of remote load at any time, the protection parameter of load is set on demand by the present invention; By apparatus of the present invention, Mechatronic control system can be implemented team control or independent control to the multi-channel DC load by the mode of data/address bus, also can surmount control to load by discrete signal, realizes the two remaining controlled function under the emergency rating.Each road load control of remote DC load controller is to be finished by the intelligent switch of isolating independently of one another, mutually and have defencive functions such as overload, short circuit, overtemperature, electric arc.The present invention designs a kind of remote DC load controller; comprise the Electrical Load Management Center module; several intelligent switch modules and accessory power supply module; it is characterized in that: the Electrical Load Management Center module is by data converter; data collector; the interface buffer circuit; data processor and control select circuit to constitute, and the intelligent switch module is by the switch mosfet pipe; fuse; Transient Voltage Suppressor; sampling resistor; fly-wheel diode; the switch mosfet tube drive circuit; current sampling circuit; voltage sampling circuit; temperature sensor; short-circuit protection circuit; microprocessor; the control synthesizer; the interface buffer circuit; insulating power supply constitutes.The data converter of Electrical Load Management Center module connects the internal state bus, connect data processor in the data converter, data processor by data collector connecting interface buffer circuit after, connect external data bus by data converter again, control is sent the switch command line after selecting circuit to receive discrete control signal by the interface buffer circuit, and control selects circuit to be made up of multichannel dibit electronic selection switch.The switch mosfet pipe of intelligent switch module connects DC load; the switch mosfet pipe is driven by the switch mosfet tube drive circuit and connects; the switch mosfet tube drive circuit by microprocessor through control synthesizer control connection; the switch mosfet tube drive circuit drives triode by voltage amplifier, rest-set flip-flop, RC delay circuit and protection and constitutes, and the control synthesizer comprises monitoring chip, logical AND gate and logical AND not gate.Advantage of the present invention is to have high mission reliability: made when external data bus loses efficacy, and can use the discrete type signal to surmount control; Built-in intelligent switch module has the ability of direct fill order signal when Control Software is invalid.Built-in intelligent switch module has load voltage, load current measuring ability; defencive functions such as the loading of online protection parameter, overload, short circuit, overtemperature, electric arc are arranged, have that the fuse protection in ultimate defence line, transient voltage suppress, the functions such as afterflow protection of inductive load.By the program in Electrical Load Management Center module and the intelligent switch module operating state data of system is analyzed and compared, can finish BIT, the Gernral Check-up of system, and system running state fed back report and submit.
Description of drawings
Fig. 1 is a remote DC load controller allomeric function block diagram of the present invention;
Fig. 2 is a remote DC load controller intelligent switch functions of modules frame principle figure of the present invention;
Fig. 3 is a remote DC load controller Electrical Load Management Center functions of modules block diagram of the present invention;
Fig. 4 is a remote DC load controller switch mosfet tube drive circuit schematic diagram of the function of the present invention;
Fig. 5 is a remote DC load controller embodiment accessory power supply schematic diagram of the function of the present invention;
Fig. 6 is that remote DC load controller embodiment of the present invention controls the selection circuit theory diagrams;
Fig. 7 is a remote DC load controller embodiment order condensating synthesizering circuit schematic diagram of the present invention.
Below in conjunction with drawings and Examples the present invention is elaborated,
Embodiment
Among the figure, remote DC load controller (100) comprises an Electrical Load Management Center module (30), n road independently intelligent switch module (40) and accessory power supply (20).The DC power supply that present the outside (1) is connected to accessory power supply (20) and every road intelligent switch module (40).N road independently intelligent switch module (40) connects n road DC load (6).Remote DC load controller (100) receives the serial data that senior management computer (3) sends by external data bus (2), receive discrete type control signal (4) and send discrete control command, after Electrical Load Management Center module (30) is handled, go up the mode of operation order of transmission n road DC load (6) to n road intelligent switch module (40) at n way switch order wire (102).The running status of intelligent switch module (40) monitoring DC load (6), and the running state information of DC load (6) reported to Electrical Load Management Center module (30) by internal state bus (101), the state information of Electrical Load Management Center module (30) inquiry n road intelligent switch module (40), and in time report and submit system running state information to upper supervisory computer (3).External data bus (2) and internal state bus (101) are CAN bus or RS485 bus, and m+1 road discrete control signal (5) is m road load control command (m≤n) and at least 1 road enable signal.
Electrical Load Management Center module (30) among the embodiment, as shown in Figure 3, Electrical Load Management Center module (30) comprises data processor (35) and (37) two control flows of control selection.Data converter (31) is decoded as external data bus (2) data flow and receives data Rx0 (32-2) or the data Tx0 (32-1) that will send is encoded to external data bus (2) data flow, Rx0 and Tx0 are after interface buffer circuit (33) is isolated, carry out data transmit-receive by expanded data transceiver (34), data processor (35) by data DATA, read R, write W order and carry out the data handing-over with data collector (34).The asynchronous communication data Rx1 (36-1) of data processor (35) and Tx1 (36-2) carry out the data handing-over through data converter (36) and internal state bus (101).The software program that is carried in data processor (35) is finished the reading and writing data of inside and outside bus, data analysis processing, output loading control command CMD0 (38), load condition inquiry, running status reports and function such as the BIT of system.M+1 road discrete control signal (5) is divided into discrete control command CMD1 (39-1) in m road and enable signal EN (39-2) after interface buffer circuit (39) is isolated, give control and select circuit (37).Control is selected circuit (37) also to receive data processor (35) and is sent n road load control command CMD0 (38), goes up the mode of operation order of output n road load at n way switch order wire (102).
Circuit (37) is selected in control among the embodiment, as shown in Figure 6, is made up of n road dibit electronic selection switch.When enable signal EN (39-2) was effective, control selected circuit (37) that discrete control command CMD1 (39-1) is exported to switch command line (102); When enable signal EN (39-2) is invalid, the signal CMD0 of data processor (35) output is exported to switch command line (102).Like this, when data/address bus or data processor inefficacy,, can obtain on the switch command line (102), realize surmounting the purpose of control by the discrete definite mode of operation order of control command CMD1 (39-1) by enable signal EN (39-2).
Intelligent switch module (40) among the embodiment, as shown in Figure 2, every road intelligent switch module (40) comprises the power feeding circuit of insulating power supply (41), microprocessor (51), control synthesizer (74), sample circuit, switch mosfet tube drive circuit (80) and switch mosfet pipe (71).
Insulating power supply (41), the DC1 (21) that is provided by accessory power supply is input, output isolated DC voltage DC4 (42).It is DC5 (43-1) that direct voltage DC4 (42) provides the energy and carry out the DC-DC voltage transformation for switch mosfet tube drive circuit (80).DC5 (43-1) provides the energy for microprocessor (51), sample circuit, control synthesizer (74), and output RST (46) resets to switch mosfet tube drive circuit (80) and microprocessor (51).
Microprocessor (51), receive and dispatch Rx2 (50-2) and Tx2 (50-1) data and internal state bus (101) by interface buffer circuit (49) and data converter (50) and carry out communication, flow through the current signal Is (54) of sampling resistor S1 (66) and the voltage signal Vs (55) of power take-off OUT (63) in the power feeding circuit of reception by current sampling circuit (61) and voltage sampling circuit (60) collection, receive the temperature signal Ts (58) of temperature sensor (59) and the voltage signal Vi (75) of the power feed input IN (69) that DC power supply sample circuit (73) is gathered.Be carried in the software program of microprocessor (51); current signal Is (54) is transshipped the overload protection (52) of anti-delay and the electric arc analysis (53) of unusual fluctuations; the voltage analysis (56) that voltage signal Vs (55) and Vi (75) are carried out load and power supply; temperature signal Ts (58) is carried out overtemperature prote (57); judge according to the mode of operation order CMD (45) of load and voltage, the electric current of load whether load is working properly, send corresponding protection instruction SD (48) and pilot signal WD (47).The protection border that microprocessor (51) energy is revised loaded work piece at any time according to the load protection parameter of receiving.Power on and load loading front and back in system, software program is finished the BIT of intelligent switch according to all kinds of testing results and logic determines, and the running state information of intelligent switch is reported to Electrical Load Management Center module (30).
When short-circuit protection circuit (64) detects load current and surpasses the highest limit value, export guard signal SDI (65) immediately.
Control synthesizer (74) among the embodiment, as shown in Figure 7.Monitoring chip (91) receives pilot signal WD (47); output disablement signal (91-1); with protection instruction SD (48) to NAND gate (92), output signal (92-1) and loaded work piece mode signal CMD (45) extremely with door (93), export switch command ON/OFF (76) at last.Its function is: when pilot signal WD (47) lost efficacy; shielding protection instruction SD (48); switch command ON/OFF (76) equals loaded work piece mode signal CMD (45), promptly when microprocessor (51) lost efficacy, can not influence the execution of loaded work piece mode signal CMD (45).
Switch mosfet tube drive circuit (80) among the embodiment, as shown in Figure 4.The mode of operation control signal ON/OFF (76) of load, the voltage Vref (83) that obtains with resistance R 11 (81), R12 (82) dividing potential drop relatively after, through voltage amplifier U11 (85), obtain the driving voltage (86) that needs.Driving voltage (86) makes rising and the fall off rate of output voltage Drv (72) controlled after R13 (87) and C11 (88) time-delay, the rate of change of final control load electric current, the electromagnetic interference of reduction feeding circuit.Guard signal SDI (86) drives triode Q11 (89) conducting through resistance R 14 (90) after rest-set flip-flop (84) latchs immediately, and making output voltage Drv (72) is zero, thereby the feeding circuit that cuts off load reaches the purpose of protection immediately.The mode of operation control signal ON/OFF (76) of load can make latching of rest-set flip-flop (84) reset.Voltage amplifier U11 (85) receives RESET signal (46), and powering on and power down moment of system, by driving voltage (86) output, protection switch mosfet pipe Q1 (71) is not open-minded under non-predetermined work state.
Switch mosfet pipe Q1 (71), as shown in Figure 2 and fuse F1 (70), current sampling resistor S1 (66) constitute the power feeding circuit.The electric energy that DC power supply (1) provides is given DC load (6) through the power feeding circuit.Driving voltage Drv (72) is added on the grid G of switch mosfet pipe Q1, and control ground GND0 (67) is connected on the source S of switching tube Q1, and power take-off OUT (63) exports outside DC load (6) to.Sustained diode 1 (62) oppositely is serially connected between power take-off OUT (63) and the power power-supply ground, provides the afterflow passage to inductive load.Current sampling resistor S1 (66) detects the load circuit electric current, and transient suppressor T1 (68) suppresses the peak voltage on switch mosfet pipe Q1 (71) drain D.Fuse F1 (70) can be when switch mosfet pipe Q1 (71) short circuit be lost efficacy, as the another heavy safety measure of feeding circuit short-circuit protection.
Accessory power supply among the embodiment (20), as shown in Figure 5.The feed of DC power supply (1) is through filter (26) and diode D21 (27), deliver to insulating power supply (24), capacitor C 21 (25) plays the energy storage effect at the front end of insulating power supply (24), and diode D21 (27) can prevent the anti-current supply circuit of delivering to of electric energy that capacitor C 21 (25) stores.Capacitor C 21 (25) goes up energy stored, at the momentary power failure of DC power supply (1) or when under-voltage, guarantees that insulating power supply (24) voltage output within a certain period of time is constant.Insulating power supply (24) has three groups of output DC1 (21), DC2 (22) and DC3 (23), DC1 (21) gives Electrical Load Management Center module (30) and n road intelligent switch module (40) power supply, and DC2 (22) provides excitation power supply to what need to isolate with external data bus interface circuit (33), discrete control signal interface circuit (39) and the change-over circuit (31) of different control loops respectively with DC3 (23).
Claims (6)
1; a kind of remote DC load controller; comprise the Electrical Load Management Center module; several intelligent switch modules and accessory power supply module; it is characterized in that: the Electrical Load Management Center module is by data converter; data collector; the interface buffer circuit; data processor and control select circuit to constitute, and the intelligent switch module is by the switch mosfet pipe; fuse; Transient Voltage Suppressor; sampling resistor; fly-wheel diode; the switch mosfet tube drive circuit; current sampling circuit; voltage sampling circuit; temperature sensor; short-circuit protection circuit; microprocessor; the control synthesizer; the interface buffer circuit; insulating power supply constitutes.
2, by the described a kind of remote DC load controller of claim 1, it is characterized in that: the data converter of Electrical Load Management Center module connects the internal state bus, connect data processor in the data converter, data processor by data collector connecting interface buffer circuit after, connect external data bus by data converter again, control is sent the switch command line after selecting circuit to select in data processor output control signal with between by the discrete control signal of interface buffer circuit reception.
3, by claim 1 or 2 described a kind of remote DC load controllers, it is characterized in that: control selects circuit to be made up of multichannel dibit electronic selection switch.
4, by the described a kind of remote DC load controller of claim 1, it is characterized in that: the switch mosfet pipe of intelligent switch module connects DC load, the switch mosfet pipe drive to be connected by the switch mosfet tube drive circuit, the switch mosfet tube drive circuit by microprocessor through control synthesizer control connection.
5, by claim 1 or 4 described a kind of remote DC load controllers, it is characterized in that: the switch mosfet tube drive circuit drives triode by voltage amplifier, rest-set flip-flop, RC delay circuit and protection and constitutes.
6, by claim 1 or 4 described a kind of remote DC load controllers, it is characterized in that: the control synthesizer comprises monitoring chip, logical AND gate and logical AND not gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2007101727653A CN101465562B (en) | 2007-12-21 | 2007-12-21 | Remote DC load controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101727653A CN101465562B (en) | 2007-12-21 | 2007-12-21 | Remote DC load controller |
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| CN101465562A true CN101465562A (en) | 2009-06-24 |
| CN101465562B CN101465562B (en) | 2010-11-10 |
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| CN2007101727653A Active CN101465562B (en) | 2007-12-21 | 2007-12-21 | Remote DC load controller |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916505A (en) * | 2010-07-23 | 2010-12-15 | 北京唯绿建筑节能科技有限公司 | Multi-group serial port data concentrator |
| CN102751942A (en) * | 2012-07-06 | 2012-10-24 | 上海华兴数字科技有限公司 | Circuit with output by motor driving and throttle control mechanism as well as excavator |
| CN103166168A (en) * | 2011-12-19 | 2013-06-19 | 上海航空电器有限公司 | High-voltage direct current solid state power controller |
| CN103166314A (en) * | 2011-12-19 | 2013-06-19 | 上海航空电器有限公司 | Direct current solid state power control system |
| CN103959587A (en) * | 2011-12-01 | 2014-07-30 | 西门子公司 | Selectivity module with serial status signal |
| CN104767282A (en) * | 2015-04-08 | 2015-07-08 | 杨策 | High-voltage automatic switch controller for three-phase power |
| CN105676730A (en) * | 2016-01-14 | 2016-06-15 | 上海航空电器有限公司 | Power supply power distribution management equipment override device for multipath electric load control |
| CN107395184A (en) * | 2017-08-28 | 2017-11-24 | 武汉华海通用电气有限公司 | One kind monitors integrated diode array driving power soft switch circuit |
| CN108037344A (en) * | 2018-01-26 | 2018-05-15 | 河南云拓智能科技有限公司 | Multicircuit relay intelligent switch based on AC current collecting |
| CN110481324A (en) * | 2019-07-15 | 2019-11-22 | 新乡市光明电器有限公司 | Load control circuit, load control mould group and electric control box |
| CN111290328A (en) * | 2020-02-18 | 2020-06-16 | 唐山鼎信电器仪表工程有限公司 | PLC control anti-interference system |
| CN113777984A (en) * | 2021-09-02 | 2021-12-10 | 郑州中科集成电路与系统应用研究院 | Direct-current high-voltage multi-path solid-state power controller |
| CN115693928A (en) * | 2022-10-14 | 2023-02-03 | 哈尔滨工业大学 | ZYNQ-based airplane direct-current remote power distribution unit and power distribution control method |
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| US4540890A (en) * | 1982-05-24 | 1985-09-10 | Galber Automazione E | System for selectively addressing electrical control signals from a control unit to a plurality of remote units |
| KR0163940B1 (en) * | 1994-03-11 | 1999-03-20 | 박형식 | Switching system |
| CN2676482Y (en) * | 2004-01-16 | 2005-02-02 | 沈阳龙盛科技开发有限公司 | Intelligent switch controller |
| CN200976516Y (en) * | 2006-11-27 | 2007-11-14 | 南通大学 | Multi-point remote switch control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101916505A (en) * | 2010-07-23 | 2010-12-15 | 北京唯绿建筑节能科技有限公司 | Multi-group serial port data concentrator |
| CN103959587A (en) * | 2011-12-01 | 2014-07-30 | 西门子公司 | Selectivity module with serial status signal |
| CN103959587B (en) * | 2011-12-01 | 2016-06-08 | 西门子公司 | There is the selectivity module of serial presence signal |
| CN103166168B (en) * | 2011-12-19 | 2016-11-02 | 上海航空电器有限公司 | A kind of high-voltage direct current solid state power controller |
| CN103166168A (en) * | 2011-12-19 | 2013-06-19 | 上海航空电器有限公司 | High-voltage direct current solid state power controller |
| CN103166314A (en) * | 2011-12-19 | 2013-06-19 | 上海航空电器有限公司 | Direct current solid state power control system |
| CN102751942A (en) * | 2012-07-06 | 2012-10-24 | 上海华兴数字科技有限公司 | Circuit with output by motor driving and throttle control mechanism as well as excavator |
| CN104767282A (en) * | 2015-04-08 | 2015-07-08 | 杨策 | High-voltage automatic switch controller for three-phase power |
| CN104767282B (en) * | 2015-04-08 | 2017-03-15 | 杨策 | Three-phase power high-voltage automatic switch controller |
| CN105676730B (en) * | 2016-01-14 | 2021-01-01 | 上海航空电器有限公司 | Override device for power distribution management equipment controlled by multiple electrical loads |
| CN105676730A (en) * | 2016-01-14 | 2016-06-15 | 上海航空电器有限公司 | Power supply power distribution management equipment override device for multipath electric load control |
| CN107395184A (en) * | 2017-08-28 | 2017-11-24 | 武汉华海通用电气有限公司 | One kind monitors integrated diode array driving power soft switch circuit |
| CN107395184B (en) * | 2017-08-28 | 2023-10-27 | 武汉华海通用电气有限公司 | Monitoring integrated diode array driving power soft switching circuit |
| CN108037344A (en) * | 2018-01-26 | 2018-05-15 | 河南云拓智能科技有限公司 | Multicircuit relay intelligent switch based on AC current collecting |
| CN110481324A (en) * | 2019-07-15 | 2019-11-22 | 新乡市光明电器有限公司 | Load control circuit, load control mould group and electric control box |
| CN111290328A (en) * | 2020-02-18 | 2020-06-16 | 唐山鼎信电器仪表工程有限公司 | PLC control anti-interference system |
| CN113777984A (en) * | 2021-09-02 | 2021-12-10 | 郑州中科集成电路与系统应用研究院 | 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系统应用研究院 | DC high-voltage multipath solid-state power controller |
| CN115693928A (en) * | 2022-10-14 | 2023-02-03 | 哈尔滨工业大学 | ZYNQ-based airplane direct-current remote power distribution unit and power distribution control method |
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