CN103576590A - Phase selection on-off controller - Google Patents
Phase selection on-off controller Download PDFInfo
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- CN103576590A CN103576590A CN201310552411.7A CN201310552411A CN103576590A CN 103576590 A CN103576590 A CN 103576590A CN 201310552411 A CN201310552411 A CN 201310552411A CN 103576590 A CN103576590 A CN 103576590A
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Abstract
The invention discloses a phase selection on-off controller which comprises upper computer communication, a main control module, a signal processing and collecting module and a driving and safety interlocking module. The main control module is mainly composed of a DSP system, an external RAM and a man-machine interface. The signal processing and collecting module is composed of an analog signal conditioning unit, a logic control unit and a digital collecting unit. The driving and safety interlocking module is mainly composed of a driving circuit unit, an energy storing and discharging unit, an optoelectronic isolating and amplifying unit and a failure alarming unit. According to the phase selection on-off controller, the switch rated closing/opening capability can be improved while auxiliary devices such as a closing resistor, a series reactor and a lightning arrester are omitted, cost is reduced and operation is easy and convenient. Reignition and restriking are prevented, the quality of the electric energy and the stability of a power system are improved, the impact to a user device is weakened, the aging of a power transformation device is postponed, and a relay protection device is simplified.
Description
Technical field
The present invention relates to vacuum switch controller technology field, particularly a kind of phase-selecting switch controller.
Background technology
Vacuum circuit breaker is widely used in the every field of power distribution network with its excellent performance characteristics, but, vacuum switch also has its limitation, such as the transient state process existing in the breaking-closing operating process at switch, can produce various interference to distribution system, cause Hyper-Voltage of Power Systems and excess current, even can propagate into far-end affects other users.When closing capacitor group, the voltage that closes moment contact two ends is random, if at this moment the voltage at contact two ends is non-vanishing, can produce all very high shoving of frequency and amplitude, and the maximum of shoving in theory can reach 50 times of steady-state value.
General employing is installed switching-on resistance, reactor, resistance-capacitance absorption equipment additional, by methods such as Zinc-Oxide Arresters, is weakened these transient state processes traditionally.But install complicacy and cost that switching-on resistance has increased switch additional, pressure limiting effect is unstable, dispersed large, consume electric energy and produce a large amount of heat energy; Install reactor additional and can make Installation and Debugging complicated, during operation, there will be electric spark, easily form oscillation circuit, increase system noise; Resistance-capacitance absorption equipment is installed and can be produced harmonic wave, increase the probability breaking down, easily become harmonic pollution source; And that the use middle valve plate of lightning arrester easily makes moist is deteriorated, temperature rises and produces active loss, forms thermal runaway, causes MOA to damage or blast when serious, and then causes large area blackout.
In sum, currently used traditional measures can not tackle the problem at its root, so people have proposed phase controlled switch technique, its essence is according to the characteristic of different complicated (as Shunt Capacitor Unit, overhead transmission line, no-load transformers etc.), gauge tap completes combined floodgate or separating brake in the optimum phase of voltage or electric current, realize shock-free seamlessly transitting, can effectively weaken switching transient galvanomagnetic effect.
Summary of the invention
The object of the present invention is to provide a kind of phase-selecting switch controller, by this controller of adapted on common permanent magnetic actuator vacuum circuit breaker, make it to become a phase-selecting switch, take system voltage or electric current as reference signal, the contact of gauge tap closes a floodgate or separating brake in the phase place of expectation, in order to reduce switching manipulation transient state process, to improve the quality of power supply, improve short circuit breaking capacity, extend switch life.
To achieve these goals, the present invention adopts following technical scheme:
A controller, comprises upper machine communication, main control module, signal processing acquisition module and driving and safety interlocking module, and described signal is processed after acquisition module gathers power network signal and sent into main control module; Described main control module real-time judge input message, provides trigger pip by pre-defined algorithm while receiving divide-shut brake instruction, controls isolating switch at desired phase bit motion; Described driving and safety interlocking module are by drive system actuating permanent magnet mechanism.
Described main control module is mainly comprised of dsp system, external RAM, man-machine interface;
Described signal is processed acquisition module and is comprised of analog signal conditioner, logic control and digital collection unit;
Described driving and safety interlocking module are mainly comprised of driving circuit, energy storage electric discharge, photoelectricity isolation amplification and fault alarm unit;
Described dsp system comprises CPU (central processing unit) TMS320LF2407A, programmable read only memory E2PROM, random access memory ram, clock circuit, watchdog reset circuit and logic level converting circuit;
Described digital collection unit adopts two 14 the A/D converter MAX125 that carry multi-way switch and sample/hold circuit.
Principle of work: main control module real-time judge input message, while receiving divide-shut brake instruction, by pre-defined algorithm, provide trigger pip, control isolating switch at desired phase bit motion, can upload to control center by RS-485 bus system parameter, or interrupt receiving the telecommand of control center; Drive with safety interlocking module by drive system actuating permanent magnet mechanism; use approach switch detector switch contact state simultaneously; realize decompression and overcurrent latch-up protection and fault alarm; for the sake of security and prevent maloperation; designed safety interlocking module, can operational order while only having the conditions such as the voltage of control, on off state, system operation all to meet.
Signal is processed acquisition module and is gathered and send into main control module after power network signal and calculate zero crossing, calculates each phase divide-shut brake required time delay when receiving divide-shut brake order; Time delay to after provide trigger command, the discharge loop conducting in electric drive module, energy-storage capacitor discharges to breaker coil, make isolating switch action, after isolating switch has moved, cut off the discharge loop of capacitor, make to leave electric weight on capacitor, in order to the use of operation next time.
Beneficial effect: 1, can save the utility appliance such as switching-on resistance, current-limiting reactor and lightning arrester, reduce costs, easy and simple to handle; 2, can improve the quality of power supply and stability of power system, weaken the impact to subscriber equipment, delay the aging of converting equipment, simplify protective relaying device; 3, can improve switch service condition, reduce arc-chutes inside and temperature around and electric potential gradient, alleviate switch block mechanical stress and contact ablation, extend life-span and the maintenance cycle of consumable accessory; 4, the close/connecting-disconnecting function that can improve that switch is specified, prevents that resume combustion and bang from wearing, and reduces the dielectric level of extra high voltage system.
Accompanying drawing explanation
Fig. 1 is phase-selecting switch fundamental diagram
Fig. 2 is structural representation of the present invention
Wherein, the 3-information acquisition of 1-upper machine communication 2-main control module and processing module 4-drive and safety interlocking module
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
As shown in Figure 2, a kind of phase-selecting switch controller, comprises upper machine communication 1, main control module 2, signal processing acquisition module 3 and driving and safety interlocking module 4, and described signal is processed after acquisition module 3 gathers power network signals and sent into main control module 2; Described main control module 2 real-time judge input messages, provide trigger pip by pre-defined algorithm while receiving divide-shut brake instruction, control isolating switch at desired phase bit motion; Described driving and safety interlocking module 4 are by drive system actuating permanent magnet mechanism.
Described main control module 2 is mainly comprised of dsp system, external RAM, man-machine interface;
Described signal is processed acquisition module 3 and is comprised of analog signal conditioner, logic control and digital collection unit;
Described driving and safety interlocking module 4 are mainly comprised of driving circuit, energy storage electric discharge, photoelectricity isolation amplification and fault alarm unit;
Described dsp system comprises CPU (central processing unit) TMS320LF2407A, programmable read only memory E2PROM, random access memory ram, clock circuit, watchdog reset circuit and logic level converting circuit;
Described digital collection unit adopts two 14 the A/D converter MAX125 that carry multi-way switch and sample/hold circuit.
Claims (6)
1. a phase-selecting switch controller, is characterized in that, comprises upper machine communication, main control module, signal processing acquisition module and driving and safety interlocking module, and described signal is processed after acquisition module gathers power network signal and sent into main control module; Described main control module real-time judge input message, provides trigger pip by pre-defined algorithm while receiving divide-shut brake instruction, controls isolating switch at desired phase bit motion; Described driving and safety interlocking module are by drive system actuating permanent magnet mechanism.
2. a kind of phase-selecting switch controller according to claim 1, is characterized in that, described main control module is mainly comprised of dsp system, external RAM, man-machine interface.
3. a kind of phase-selecting switch controller according to claim 1, is characterized in that, described signal is processed acquisition module and mainly analog signal conditioner, logic control and digital collection unit, consisted of.
4. a kind of phase-selecting switch controller according to claim 1, is characterized in that, described driving and safety interlocking module are mainly comprised of driving circuit, energy storage electric discharge, photoelectricity isolation amplification and fault alarm unit.
5. a kind of phase-selecting switch controller according to claim 1, it is characterized in that, described dsp system comprises CPU (central processing unit) TMS320LF2407A, programmable read only memory E2PROM, random access memory ram, clock circuit, watchdog reset circuit and logic level converting circuit.
6. a kind of phase-selecting switch controller according to claim 1, is characterized in that, described digital collection unit adopts two 14 the A/D converter MAX125 that carry multi-way switch and sample/hold circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552411.7A CN103576590A (en) | 2013-11-08 | 2013-11-08 | Phase selection on-off controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310552411.7A CN103576590A (en) | 2013-11-08 | 2013-11-08 | Phase selection on-off controller |
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| CN103576590A true CN103576590A (en) | 2014-02-12 |
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| CN201310552411.7A Pending CN103576590A (en) | 2013-11-08 | 2013-11-08 | Phase selection on-off controller |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303251Y (en) * | 2008-09-20 | 2009-09-02 | 大连理工大学 | Parallel hybrid active filter with reactive power compensation based on phase controlled switch technique |
| CN202886898U (en) * | 2012-10-17 | 2013-04-17 | 浙江大荣电气有限公司 | Intelligent synchronous switch controller |
| JP2013085395A (en) * | 2011-10-11 | 2013-05-09 | Toyota Motor Corp | Charging system, vehicle and control method for charging system |
| CN203085445U (en) * | 2012-12-26 | 2013-07-24 | 中国西电电气股份有限公司 | Phase selection switch controller with communication function |
| CN103346578A (en) * | 2013-07-15 | 2013-10-09 | 大连交通大学 | Intelligent phase selection switch controller |
-
2013
- 2013-11-08 CN CN201310552411.7A patent/CN103576590A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201303251Y (en) * | 2008-09-20 | 2009-09-02 | 大连理工大学 | Parallel hybrid active filter with reactive power compensation based on phase controlled switch technique |
| JP2013085395A (en) * | 2011-10-11 | 2013-05-09 | Toyota Motor Corp | Charging system, vehicle and control method for charging system |
| CN202886898U (en) * | 2012-10-17 | 2013-04-17 | 浙江大荣电气有限公司 | Intelligent synchronous switch controller |
| CN203085445U (en) * | 2012-12-26 | 2013-07-24 | 中国西电电气股份有限公司 | Phase selection switch controller with communication function |
| CN103346578A (en) * | 2013-07-15 | 2013-10-09 | 大连交通大学 | Intelligent phase selection switch controller |
Non-Patent Citations (1)
| Title |
|---|
| 张建国: "基于单线圈永磁机构的相控开关控制器的设计", 《中国优秀硕士学位论文全文数据库 工程科技II辑》, 15 September 2009 (2009-09-15) * |
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Application publication date: 20140212 |