CN204334113U - A kind of automatic change-over driver control system with triple protection - Google Patents
A kind of automatic change-over driver control system with triple protection Download PDFInfo
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- CN204334113U CN204334113U CN201420803897.7U CN201420803897U CN204334113U CN 204334113 U CN204334113 U CN 204334113U CN 201420803897 U CN201420803897 U CN 201420803897U CN 204334113 U CN204334113 U CN 204334113U
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Abstract
A kind of automatic change-over driver control system with triple protection.It comprises: microprocessor B, main switch primary importance switch S 1OF1, main switch second place switch S 1OF2, main switch three position switch S1OF3, standby switch primary importance switch S 2OF1, standby switch second place switch S 2OF2, standby switch three position switch S2OF3, rotating forward relay J 1, reversion relay J 2 and motor M.The utility model not only can be used for the automatic change-over using motor, can also for the automatic change-over using solenoid to drive.The fault such as burn-down of electric motor and switching mechanism damage can be stopped through facts have proved completely after having above triple protection, improve the reliability of automatic change-over.
Description
Technical field
The utility model belongs to automatic power switching device shifter, power transmission and distribution technical field, particularly relates to a kind of automatic change-over driver control system with triple protection.
Background technology
Automatic change-over is the important composition device of distribution system, and the input port of general automatic change-over connects the conventional of electric power system and two-way power supply for subsequent use, automatically switches between two-way power supply, the continuity of powering with proof load.
The conversion of automatic change-over all needs to complete Power convert process by external force driving device structure, and external force utilizes electric energy conversion primarily of driving elements such as motor, electromagnet, stored energy mechanisms; A lot of automatic change-over lost efficacy at present is because damaging appears in driving element, so ensure that driving element reliability is the prerequisite of automatic change-over reliably working.
Fig. 1 shows the control system figure of current automatic change-over driver, as shown in Figure 1, this control system with relay J 1J2 for switching device, S1OF, S2OF is main power supply position feedback node, motor M is driving element, motor M mono-termination common port, another two termination rotating control loops.When main power source is normal, microprocessor B control relay J1 closes, and motor M rotates forward loop and connects, and driving mechanism disconnects stand-by power source breaker closing main power source circuit breaker.When after main power source breaker closing, microprocessor B monitors S1OF node and closes, and control relay J1 disconnects at once, converts.Work as mains power failure, when stand-by power source is normal, microprocessor B control relay J2 closes, motor M reversion loop is connected, and driving mechanism disconnects main power source breaker closing stand-by power source circuit breaker, and microprocessor B monitors S2OF node and closes, control relay J2 disconnects at once, converts.
Above control system advantage is that electrical structure and programmed logic are simple, and cost is low.Shortcoming is that motor M can be energized all the time if relay J 1 or the adhesion of J2 contact, and the time has been grown and can burn motor M; If motor M is energized for a long time, electric power meeting long duration of action, on change over switch, makes the mechanical structure of change over switch therefore be out of shape; If damaging appears in S1OF or S2OF node, microprocessor B can monitor the position of the switch feedback signal of mistake.Such as actual switch is closed, but because damaging appears in OF, so microprocessor B monitors is switch breaking signal, microprocessor B will continue to send closure signal, cause motor M to burn or switching mechanism damage, such automatic change-over is with regard to cisco unity malfunction.
Summary of the invention
In order to solve the problem, the purpose of this utility model is to provide a kind of automatic change-over driver control system with triple protection.
In order to achieve the above object, the automatic change-over driver control system of what the utility model provided have triple protection comprises: microprocessor B, main switch primary importance switch S 1OF1, main switch second place switch S 1OF2, main switch three position switch S1OF3, standby switch primary importance switch S 2OF1, standby switch second place switch S 2OF2, standby switch three position switch S2OF3, rotate forward relay J 1, reversion relay J 2 and motor M; Wherein: four input ports of microprocessor B are connected with standby switch three position switch S2OF3 with main switch second place switch S 1OF2, main switch three position switch S1OF3, standby switch second place switch S 2OF2 respectively, two output port is connected with relay J 2 of reversing with rotating forward relay J 1 respectively, rotate forward relay J 1 to be connected with motor M by standby switch primary importance switch S 2OF1, reversion relay J 2 is connected with motor M by main switch primary importance switch S 1OF1.
Described main switch primary importance switch S 1OF1 is the normally-closed contact switch on main power switch, and it is the position feed back signal switch of main power switch, and when main power switch closes, it disconnects; Standby switch primary importance switch S 2OF1 is the normally-closed contact switch on stand-by power source switch, and it is the position feed back signal switch of stand-by power source switch, and when stand-by power source switch closes, it disconnects;
Described main switch second place switch S 1OF2 and main switch three position switch S1OF3 is the normally opened contact switch on main power switch, and it is the position feed back signal switch of main power switch, and when main power switch closes, it closes; Standby switch second place switch S 2OF2 and standby switch three position switch S2OF3 is the normally opened contact switch on stand-by power source switch, and it is the position feed back signal switch of stand-by power source switch, and when stand-by power source switch closes, it closes.
Described rotating forward relay J 1 is the rotating forward control relay of motor M, and during its action, output contact closes, and motor M rotates forward to be run; Reversion relay J 2 is the reversion control relay of motor M, and during its action, output contact closes, and motor M reversion runs.
The automatic change-over driver control system of what the utility model provided have triple protection not only can be used for using the automatic change-over of motor, can also for the automatic change-over using solenoid to drive.The fault such as burn-down of electric motor and switching mechanism damage can be stopped through facts have proved completely after having above triple protection, improve the reliability of automatic change-over.
Accompanying drawing explanation
Fig. 1 is the control system figure of automatic change-over driver in prior art;
The theory diagram with the automatic change-over driver control system of triple protection that Fig. 2 provides for the utility model;
Fig. 3 is main power switch feedback circuit schematic diagram in the utility model;
Fig. 4 is motor forward/backward rotation control loop schematic diagram in the utility model;
The control logic block diagram of the automatic change-over driver control system that Fig. 5 provides for the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the automatic change-over driver control system with triple protection that the utility model provides is described in detail.
As shown in Figure 2, the automatic change-over driver control system of what the utility model provided have triple protection comprises: microprocessor B, main switch primary importance switch S 1OF1, main switch second place switch S 1OF2, main switch three position switch S1OF3, standby switch primary importance switch S 2OF1, standby switch second place switch S 2OF2, standby switch three position switch S2OF3, rotate forward relay J 1, reversion relay J 2 and motor M; Wherein: four input ports of microprocessor B are connected with standby switch three position switch S2OF3 with main switch second place switch S 1OF2, main switch three position switch S1OF3, standby switch second place switch S 2OF2 respectively, two output port is connected with relay J 2 of reversing with rotating forward relay J 1 respectively, rotate forward relay J 1 to be connected with motor M by standby switch primary importance switch S 2OF1, reversion relay J 2 is connected with motor M by main switch primary importance switch S 1OF1.
Described main switch primary importance switch S 1OF1 is the normally-closed contact switch on main power switch, and it is the position feed back signal switch of main power switch, and when main power switch closes, it disconnects; Standby switch primary importance switch S 2OF1 is the normally-closed contact switch on stand-by power source switch, and it is the position feed back signal switch of stand-by power source switch, and when stand-by power source switch closes, it disconnects;
Described main switch second place switch S 1OF2 and main switch three position switch S1OF3 is the normally opened contact switch on main power switch, and it is the position feed back signal switch of main power switch, and when main power switch closes, it closes; Standby switch second place switch S 2OF2 and standby switch three position switch S2OF3 is the normally opened contact switch on stand-by power source switch, and it is the position feed back signal switch of stand-by power source switch, and when stand-by power source switch closes, it closes.
Described rotating forward relay J 1 is the rotating forward control relay of motor M, and during its action, output contact closes, and motor M rotates forward to be run; Reversion relay J 2 is the reversion control relay of motor M, and during its action, output contact closes, and motor M reversion runs.
Microprocessor B is the control core parts of native system, it to monitor on main power switch S1OF2 and S1OF3 two position feed back signals for judging the position of main power switch simultaneously, monitor S2OF2 and S2OF3 two position feed back signals on stand-by power source switch, for judging the position of stand-by power source switch simultaneously; By controlling two relay J 1, the cut-offfing of J2, control motor M rotating; Motor M rotates forward loop, and namely sealed in standby switch primary importance switch S 2OF1 in main power switch closed-loop path, motor reversal loop, has sealed in main switch primary importance switch S 1OF1 in stand-by power source switch closures.
As shown in Figure 3, main power switch feedback circuit employs two of main power switch and often opens node and make feedback element, node S1OF2 is often opened in main power switch disconnection and S 1OF3 disconnects simultaneously, 24V direct current does not flow through optocoupler, so microprocessor B output port IO3 and IO4 receive is high level, represent that main power switch is not closed; Often open node S1OF2 and S1OF3 after main power switch is closed to close, optocoupler conducting, microprocessor B output port IO3 and IO4 becomes low level from high level simultaneously, represents that main power switch closes.Described above, position feedback node once damage, will motor damage and damage switching mechanism, so be different from traditional design herein, have employed two position feed back signal identification switch states.Time normal, two nodes are opened simultaneously or are closed, microprocessor B can judge the state of switch, once one of them node damages, two position feed back signals can be inconsistent, at this moment microprocessor B can judge that position feedback breaks down, just can say the word at once and disconnect relay J 1, stop conversion, avoid motor damage and damage switching mechanism.Therefore adopt above redundancy to be set to automatic change-over driver control system to provide first and heavily protect; Stand-by power source position of the switch feedback circuit is identical with main power switch.
As shown in Figure 4, in this motor M rotating control loop, relay J 1, J2 often open the L line that node seals in control loop, and microprocessor B is cut off by output port IO5, IO6 control relay and connects L line, and motor M just can rotate and reverse.The innovative point of this circuit rotates forward at motor normally closed node S1OF1, the S1OF1 that have sealed in main switch in loop only just can close when main power switch disconnects, and at this moment J1 relay effectively could control motor and rotate forward closed main power switch; After main power switch is closed, S1OF1 disconnects, and has cut off motor control loop, motor stalling.Even if JI relay contact adhesion like this, as long as main power switch closes, control loop will disconnect automatically, so just heavily protects for automatic change-over driver control system provides second.
Fig. 5 is the control logic figure of automatic change-over driver control system, if as can be seen from the figure two position feedback of main power switch break down, software to wait for after a T2 time delay detection position feedback again, if still there is fault, just can disconnect relay J 1 at once, and report to the police.Even if so position feedback breaks down, software also can disconnect relay after T1 and T2 time delay, cuts off motor power, protection system.Triple protection is provided for automatic change-over driver control system like this from software logic.
Claims (4)
1. there is an automatic change-over driver control system for triple protection, it is characterized in that: the described automatic change-over driver control system with triple protection comprises: microprocessor B, main switch primary importance switch S 1OF1, main switch second place switch S 1OF2, main switch three position switch S1OF3, standby switch primary importance switch S 2OF1, standby switch second place switch S 2OF2, standby switch three position switch S2OF3, rotating forward relay J 1, reversion relay J 2 and motor M; Wherein: four input ports of microprocessor B are connected with standby switch three position switch S2OF3 with main switch second place switch S 1OF2, main switch three position switch S1OF3, standby switch second place switch S 2OF2 respectively, two output port is connected with relay J 2 of reversing with rotating forward relay J 1 respectively, rotate forward relay J 1 to be connected with motor M by standby switch primary importance switch S 2OF1, reversion relay J 2 is connected with motor M by main switch primary importance switch S 1OF1.
2. the automatic change-over driver control system with triple protection according to claim 1, it is characterized in that: described main switch primary importance switch S 1OF1 is the normally-closed contact switch on main power switch, it is the position feed back signal switch of main power switch, and when main power switch closes, it disconnects; Standby switch primary importance switch S 2OF1 is the normally-closed contact switch on stand-by power source switch, and it is the position feed back signal switch of stand-by power source switch, and when stand-by power source switch closes, it disconnects.
3. the automatic change-over driver control system with triple protection according to claim 1, it is characterized in that: described main switch second place switch S 1OF2 and main switch three position switch S1OF3 is the normally opened contact switch on main power switch, it is the position feed back signal switch of main power switch, and when main power switch closes, it closes; Standby switch second place switch S 2OF2 and standby switch three position switch S2OF3 is the normally opened contact switch on stand-by power source switch, and it is the position feed back signal switch of stand-by power source switch, and when stand-by power source switch closes, it closes.
4. the automatic change-over driver control system with triple protection according to claim 1, is characterized in that: described rotating forward relay J 1 is the rotating forward control relay of motor M, and during its action, output contact closes, and motor M rotates forward to be run; Reversion relay J 2 is the reversion control relay of motor M, and during its action, output contact closes, and motor M reversion runs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420803897.7U CN204334113U (en) | 2014-12-17 | 2014-12-17 | A kind of automatic change-over driver control system with triple protection |
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| CN201420803897.7U CN204334113U (en) | 2014-12-17 | 2014-12-17 | A kind of automatic change-over driver control system with triple protection |
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| CN204334113U true CN204334113U (en) | 2015-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485731A (en) * | 2014-12-17 | 2015-04-01 | 施耐德万高（天津）电气设备有限公司 | Automatic transfer switch driver control system with triple protection |
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- 2014-12-17 CN CN201420803897.7U patent/CN204334113U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485731A (en) * | 2014-12-17 | 2015-04-01 | 施耐德万高（天津）电气设备有限公司 | Automatic transfer switch driver control system with triple protection |
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