CN101013825A - Method and apparatus for controlling PC automatic change-over and controller thereof - Google Patents
Method and apparatus for controlling PC automatic change-over and controller thereof Download PDFInfo
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- CN101013825A CN101013825A CN 200710056666 CN200710056666A CN101013825A CN 101013825 A CN101013825 A CN 101013825A CN 200710056666 CN200710056666 CN 200710056666 CN 200710056666 A CN200710056666 A CN 200710056666A CN 101013825 A CN101013825 A CN 101013825A
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Abstract
The invention relates to one control method and device of PC automatic conversion switch and its controller, which comprises controller, control direct current load circuit breaker signal output terminals. The controller method comprises the following steps: testing whether the main power is normal; if not, breaking the alternating load to protect breaker; judging whether to stop the load; if yes, then switching the output signals; judging whether to fulfill conversion; if yes sending signals to direct current load protection breaker; judging whether direct current load protection breaker is closed; if yes then ending the processing.
Description
Affiliated technical field
The invention belongs to a kind of automatic change-over, particularly relate to the control method and the device of a kind of PC level automatic change-over and controller thereof.
Background technology
In present known distribution system, guarantee the reliability of system, the power supply of the emergency lighting circuit of system for the fire-fighting function that satisfies system and be generally direct current and independent with All other routes.And existing P C level automatic change-over can't satisfy direct current and the system that exchanges two groups of loads are arranged, and this is because this type of switch only has one group of load wiring end, can't be with emergency lighting circuit and the isolation of other circuit.
Summary of the invention
The present invention provides a kind of PC level automatic change-over that two groups of load wiring ends are arranged for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: it includes control signal output ends of controller, switch actuator, main power source input terminal, stand-by power supply binding post and AC load line-breaker, also includes control signal output ends of DC load line-breaker.
The present invention provides a kind of have the PC level automatic change-over of two groups of load wiring ends and the control method of controller thereof for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: it includes controller, switch actuator, main power source input terminal, stand-by power supply binding post, the signal output terminal of control AC load line-breaker and the main program of controller, also includes the signal output terminal of control DC load line-breaker; Alternating current-direct current suitching type PC level automatic transfer switch controller switches and alternating current-direct current load switching with the I/O port controlling power of alterating and direct current of controller, and it also includes following steps:
Detect main power voltage and whether be below or above the protection set point;
If main power voltage is below or above the protection set point, then carry out switching motion, promptly send disconnection AC side load protection breaker signal;
Judge whether that AC side load protection circuit breaker disconnects, if do not disconnect yet after one section time-delay, then controller will be back to main program, if disconnect then export control signal the execution architecture of automatic change-over be changed;
Judge whether to finish above-mentioned conversion, if after one section time-delay, remain unfulfilled above-mentioned conversion, then return main program, if finished conversion then send signal closes DC side load protection circuit breaker;
Judge whether DC side load protection circuit breaker is closed, if still not closed after one section time-delay, then returns main program, finished closure, this transfer process end if judge.
The present invention provides a kind of have the PC level automatic change-over of two groups of load wiring ends and the control device of controller thereof for solving the technical problem that exists in the known technology.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: it includes controller, switch actuator, the main power source input terminal, the signal output terminal of stand-by power supply binding post and control AC load line-breaker and the main program module of controller, also include the signal output terminal of control DC load line-breaker, alternating current-direct current suitching type PC level automatic transfer switch controller switches and alternating current-direct current load switching with the I/O port controlling power of alterating and direct current of controller, and it also includes with lower module beyond the controller main program module:
Voltage judge module: be used to detect main power voltage and whether be below or above the protection set point, if be below or above protection set point then enter the switching motion module;
Switching motion module: when main power voltage is below or above the protection set point, then disconnects AC side load protection circuit breaker and enter the auxiliary node acquisition module;
When judging that AC side load factor protective circuit breaker has disconnected, stop to export disconnecting AC side load protection breaker signal and exporting control signal the execution architecture of automatic change-over is changed, and enter the auxiliary node acquisition module;
Finished the above-mentioned conversion that the automatic change-over execution architecture is carried out when judging, stopped exporting the switch transition signal and send signal closes DC side load protection circuit breaker, and enter the auxiliary node acquisition module;
The auxiliary node acquisition module: judge whether that the AC side load disconnects, if do not disconnect yet after one section time-delay, then controller will withdraw from auxiliary node acquisition module, switching motion module and voltage judge module, otherwise enter the switching motion module;
Judge whether to finish the conversion that the automatic change-over execution architecture is carried out, if remain unfulfilled above-mentioned conversion after one section time-delay, then controller will withdraw from auxiliary node acquisition module, switching motion module and voltage judge module otherwise enter the switching motion module;
Judge whether DC side load protection circuit breaker is closed, if still not closed after one section time-delay, then controller will withdraw from auxiliary node acquisition module, switching motion module and voltage judge module, finished then transfer process end of closure if judge.
The advantage that the present invention has with good effect is: since adopt can to direct current with exchange the mode that two groups of load system circuit breakers are controlled, both satisfied the reliability that the fire-fighting function that makes in the system can be guaranteed system, with the direct current emergency lighting circuit and the independent requirement of other AC load circuits of system, also can finish switching to power of alterating and direct current.
Description of drawings
Fig. 1 is that the present invention is used for duplicate supply, two load system schematic diagram;
Fig. 2 is a controller control method flow chart of the present invention;
Fig. 3 is the control principle figure of controller of the present invention.
Embodiment
For further understanding content of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, the main power source input 1 of automatic change-over actuator connects the output of main power source circuit breaker K1, and the stand-by power supply input 2 of switch actuator connects the output of auxiliaries-supply circuit-breaker K2.The output 3 of switch actuator connects the input of AC load and DC load circuit breaker K3, K4.The lead-out terminal 4 of automatic transfer switch controller output AC loaded line circuit breaker control signal connects the control end of AC load line-breaker K3, and the lead-out terminal 5 of automatic transfer switch controller output DC load line-breaker control signal connects the control end of DC load line-breaker K4.
Shown in Fig. 2,1, when the controller normal operating conditions, operate in all the time in the voltage judge module, whether detect main power voltage normal.If main power voltage is below or above the protection set point, then controller enters the switching motion module.After entering the switching motion module, to at first disconnect AC side load protection circuit breaker K3, and judge whether that by the auxiliary node acquisition module AC side load protection circuit breaker K3 disconnects, if after one section time-delay, do not disconnect yet, then controller will withdraw from the auxiliary node acquisition module, switching motion module and voltage judge module are back to main program module, if disconnect then withdraw from the auxiliary node acquisition module, only run in the switching motion module, stop to export this moment disconnecting AC side load protection circuit breaker K3 signal and exporting control signal the execution architecture of automatic change-over is changed, promptly carry out the switching motion of the closed stand-by power supply of disjunction main power source; Judge whether to finish above-mentioned conversion by the auxiliary node acquisition module, if after one section time-delay, remain unfulfilled above-mentioned conversion, then controller will withdraw from auxiliary node acquisition module, switching motion module and voltage judge module and be back to main program module, if finished conversion then withdrawed from the auxiliary node acquisition module, only run in the switching motion module, stop to export the switch transition signal and send signal closes DC side load protection circuit breaker K4 this moment; Judge by the auxiliary node acquisition module whether DC side load protection circuit breaker K4 is closed; if it is still not closed after one section time-delay; then controller will withdraw from auxiliary node acquisition module, switching motion module and voltage judge module and be back to main program module; if judge and finished closure, this transfer process finishes.
As shown in Figure 3, in the controller normal course of operation, controller will detect the every magnitude of voltage of active and standby two-way power supply by the voltage signal acquisition circuit cycles.Be below or above the protection set point in case detect loop voltage, controller will enter the switching motion process.With current on off state serves as that main to close back-up be example.Controller will drive the motor-operating mechanism of circuit breaker K3 by the I/O mouth, and the auxiliary node that constantly detects circuit breaker 1 judges whether this circuit breaker finishes the separating brake action, move then that controller returns main program if after one section time-delay, remain unfulfilled this, if judging above-mentioned action finishes, controller will stop to drive the motor-operating mechanism of this circuit breaker so, and the branch master who carries out automatic change-over closes and is equipped with action.Controller drives the actuator of automatic change-over equally by the I/O mouth, and constantly the auxiliary node of sense switch judges whether to finish the branch master and closes and be equipped with action, move then that controller returns main program if after one section time-delay, remain unfulfilled this, if judging above-mentioned action finishes, controller will stop to drive the actuator of this automatic change-over so, carry out the feed motion of circuit breaker K4.Controller will drive the motor-operating mechanism of circuit breaker K4 by the I/O mouth, and the auxiliary node that constantly detects circuit breaker K4 judges whether this circuit breaker finishes the separating brake action, move then that controller returns main program if after one section time-delay, remain unfulfilled this, if judging above-mentioned action finishes, controller will stop to drive the motor-operating mechanism of this circuit breaker K4 so, and this transfer process is all over.
The controller of automatic change-over is under normal operation, and whether the cycle criterion main power voltage is normal, in case detect mains power failure, controller will at first disconnect AC load side protective circuit breaker K3.The auxiliary node that controller sends after the open command this circuit breaker of cycle detection K3 judges whether to finish this action; move then that controller returns main program if after one section time-delay, remain unfulfilled this; if judging above-mentioned action finishes; automatic change-over will carry out the switching motion of the closed stand-by power supply of disjunction main power source so; controller judges whether to finish this action with the auxiliary node of cycle detection Switch main body after sending conversion instruction; move then that controller returns main program if after one section time-delay, remain unfulfilled this; if judging above-mentioned action finishes; controller will be connected the protective circuit breaker K4 of DC load side so; the auxiliary node that controller sends behind the reclosing command this circuit breaker of cycle detection K4 judges whether to finish this action; move then that controller returns main program if after one section time-delay, remain unfulfilled this; finish if judge above-mentioned action, this transfer process is all over so.
Claims (3)
1. PC level automatic change-over and controller thereof, it includes the signal output terminal of controller, switch actuator, main power source input terminal, stand-by power supply binding post and control AC load line-breaker, it is characterized in that: the signal output terminal that also includes control DC load line-breaker.
2. the control method of PC level automatic change-over and controller thereof, it includes controller, switch actuator, main power source input terminal, stand-by power supply binding post, the signal output terminal of control AC load line-breaker and the main program of controller, also include the signal output terminal of control DC load line-breaker, alternating current-direct current suitching type PC level automatic transfer switch controller switches and alternating current-direct current load switching with the I/O port controlling power of alterating and direct current of controller, it is characterized in that:
Beyond the controller main program, also include following steps:
Detect main power voltage and whether be below or above the protection set point;
If main power voltage is below or above the protection set point, then carry out switching motion, promptly send disconnection AC side load protection breaker signal;
Judge whether that AC side load protection circuit breaker disconnects, if do not disconnect yet after one section time-delay, then controller will be back to main program, if disconnect then export control signal the execution architecture of automatic change-over be changed;
Judge whether to finish above-mentioned conversion, if after one section time-delay, remain unfulfilled above-mentioned conversion, then return main program, if finished conversion then send signal closes DC side load protection circuit breaker;
Judge whether DC side load protection circuit breaker is closed, if still not closed after one section time-delay, then returns main program, finished closure, this transfer process end if judge.
3. the control device of PC level automatic change-over and controller thereof, it includes controller, switch actuator, the main power source input terminal, the signal output terminal of stand-by power supply binding post and control AC load line-breaker and the main program module of controller, also include the signal output terminal of control DC load line-breaker, alternating current-direct current suitching type PC level automatic transfer switch controller switches and alternating current-direct current load switching with the I/O port controlling power of alterating and direct current of controller, and it is characterized in that: it also includes with lower module beyond the controller main program module:
Voltage judge module: be used to detect main power voltage and whether be below or above the protection set point, if be below or above protection set point then enter the switching motion module;
Switching motion module: when main power voltage is below or above the protection set point, then disconnects AC side load protection circuit breaker and enter the auxiliary node acquisition module;
When judging that AC side load factor protective circuit breaker has disconnected, stop to export disconnecting AC side load protection breaker signal and exporting control signal the execution architecture of automatic change-over is changed, and enter the auxiliary node acquisition module;
Finished the above-mentioned conversion that the automatic change-over execution architecture is carried out when judging, stopped exporting the switch transition signal and send signal closes DC side load protection circuit breaker, and enter the auxiliary node acquisition module;
The auxiliary node acquisition module: judge whether that the AC side load disconnects, if do not disconnect yet after one section time-delay, then controller will withdraw from auxiliary node acquisition module, switching motion module and voltage judge module, otherwise enter the switching motion module;
Judge whether to finish the conversion that the automatic change-over execution architecture is carried out, if remain unfulfilled above-mentioned conversion after one section time-delay, then controller will withdraw from auxiliary node acquisition module, switching motion module and voltage judge module otherwise enter the switching motion module;
Judge whether DC side load protection circuit breaker is closed, if still not closed after one section time-delay, then controller will withdraw from auxiliary node acquisition module, switching motion module and voltage judge module, finished then transfer process end of closure if judge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100566669A CN100574045C (en) | 2007-01-31 | 2007-01-31 | The control device and the control method of PC level automatic change-over |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100566669A CN100574045C (en) | 2007-01-31 | 2007-01-31 | The control device and the control method of PC level automatic change-over |
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| CN101013825A true CN101013825A (en) | 2007-08-08 |
| CN100574045C CN100574045C (en) | 2009-12-23 |
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| CNB2007100566669A Expired - Fee Related CN100574045C (en) | 2007-01-31 | 2007-01-31 | The control device and the control method of PC level automatic change-over |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728867A (en) * | 2008-10-20 | 2010-06-09 | 深圳富泰宏精密工业有限公司 | Wireless electric power monitoring system |
| CN102545378A (en) * | 2012-02-14 | 2012-07-04 | 华为技术有限公司 | Controller, load protection method, automatic transfer switching equipment and system |
| CN103580268A (en) * | 2012-07-24 | 2014-02-12 | 江苏创能电器有限公司 | PC-class double-power-supply controller |
| CN103762967A (en) * | 2013-11-29 | 2014-04-30 | 王晓元 | Time delay switch circuit and dual-power-source selector switch device with same |
| CN104678759A (en) * | 2013-11-26 | 2015-06-03 | 西安恒飞电子科技有限公司 | Master-slave controller circuit |
| CN104779578A (en) * | 2015-04-15 | 2015-07-15 | 淄博汇科机电设备有限公司 | Intelligent voltage-violation protector |
| CN106026362A (en) * | 2016-06-26 | 2016-10-12 | 潘炳松 | Control system for dual-power-supply switching apparatus |
-
2007
- 2007-01-31 CN CNB2007100566669A patent/CN100574045C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728867A (en) * | 2008-10-20 | 2010-06-09 | 深圳富泰宏精密工业有限公司 | Wireless electric power monitoring system |
| CN101728867B (en) * | 2008-10-20 | 2013-09-04 | 深圳富泰宏精密工业有限公司 | Wireless electric power monitoring system |
| CN102545378A (en) * | 2012-02-14 | 2012-07-04 | 华为技术有限公司 | Controller, load protection method, automatic transfer switching equipment and system |
| CN102545378B (en) * | 2012-02-14 | 2013-12-18 | 华为技术有限公司 | Controller, load protection method, automatic transfer switching equipment and system |
| CN103580268A (en) * | 2012-07-24 | 2014-02-12 | 江苏创能电器有限公司 | PC-class double-power-supply controller |
| CN104678759A (en) * | 2013-11-26 | 2015-06-03 | 西安恒飞电子科技有限公司 | Master-slave controller circuit |
| CN103762967A (en) * | 2013-11-29 | 2014-04-30 | 王晓元 | Time delay switch circuit and dual-power-source selector switch device with same |
| CN103762967B (en) * | 2013-11-29 | 2017-05-31 | 惠州莫思特科技有限公司 | Delay switch circuit and the double power supply converting switch device using the delay switch circuit |
| CN104779578A (en) * | 2015-04-15 | 2015-07-15 | 淄博汇科机电设备有限公司 | Intelligent voltage-violation protector |
| CN104779578B (en) * | 2015-04-15 | 2018-05-22 | 山东汇科工控技术有限公司 | A kind of intelligence buckling protective device |
| CN106026362A (en) * | 2016-06-26 | 2016-10-12 | 潘炳松 | Control system for dual-power-supply switching apparatus |
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| Publication number | Publication date |
|---|---|
| CN100574045C (en) | 2009-12-23 |
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