CN101150260B - Power supply switch and anti-jump control method and device - Google Patents
Power supply switch and anti-jump control method and device Download PDFInfo
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Abstract
This invention discloses an anti-hop control device for supply switch parallel to a supply switch device and connected between a multi-channel power supply and controlled electric equipment switched by the supply switch device, in which, the anti-hop control device includes: a multi-channel supply device connected to a multi-channel power supply, a logic controller connected to the supply device and supplied by it and connected to the controlled electric equipment, in which, the supply device is connected to the supply to guarantee supplying to the logic controller when one channel supply is faulty, the logic controller outputs coherent logic control signals to the controlled electric equipment, which can keep coherent working state when switching supply.
Description
Technical field
The present invention relates to the electrical control field, more particularly, relate to the Electrical Control Technology that continues normal operation controlled device being realized do not shut down under power network fluctuation situations such as outage, momentary power failure and under voltage.
Background technology
In enterprise, some production process has higher requirement to the reliability of equipment operation.Yet, for a certain reason, some can take place in process of production such as the thing of power network fluctuations such as outage, momentary power failure and under voltage, cause normal operating equipment to shut down suddenly, what influence was produced normally carries out, and brings loss for the business economic benefit.Though the application of the automatic switchover technology of multichannel (mainly being two-way) power supply now is very general, for example: Chinese patent publication number CN91215899.9, patent application date 1991.09.13, patent name are three-phase 380V automatic power-supply switch; Chinese patent publication number CN02252961.6, patent application date 2002.09.02, patent name are CATV machine room double loop power supply automatic power supply device; Chinese patent publication number CN94245527.4, patent application date 1994.11.24, patent name are the duplex feeding automatic transfer equipment; Chinese patent publication number CN200420043976.9, patent application date 2004.03.26, patent name are uninterrupted power supply dual input automatic switching control equipment; Chinese patent publication number CN CN00244202.7, patent application date 2000.07.21, patent name are power switcher.But in above-mentioned prior art, although the device and the control principle that adopt are had nothing in common with each other, its basic function is all similar, promptly works as one road power supply and cuts off the power supply, and another road power supply is cut automatically.And do not have controlled device " anti-jump " function in the power supply handoff procedure, promptly can not solve the halting problem of controlled device in the power supply handoff procedure.
Fig. 1 is the control flow of an existing duplex feeding automatic switchover patented technology, relevant proprietary material is as follows, applying date 1994.11.24, the patent No.=CN94245527.4, title " duplex feeding automatic transfer equipment ", with reference to figure 1 as seen, this is a kind of duplex feeding automatic transfer equipment 100, inside comprises housing, one two main contacts contactor, or two 2,3 or 4 main contacts contactors, entrance hole, the wiring utmost point and control circuit, load circuit connect corresponding each power supply phase line, control circuit is in series with contactor coil, be connected to I section power supply 102, II section power supply 104, output is connected to controlled electric equipment 106.Under the normal condition, duplex feeding, I section power supply and II section power supply, if this moment I section power cut-off, then II section power supply can be realized automaticallying switch, and guarantees that power supply is normal.
But this technology, do not have controlled device " anti-jump " function in the power supply handoff procedure, promptly in the power supply handoff procedure, normal operating controlled device can stop because of power supply switches, after II section power supply was realized conversion automatically, controlled device also need restart operation then.
So, just need a kind of power supply handoff technique that can in the power supply handoff procedure, carry out " anti-jump " control.
Summary of the invention
Purpose of the present invention just provides a kind of can carry out " anti-jump " and controls in the power supply handoff procedure, keep the power supply handoff technique that controlled electric equipment is steady, link up and move.
According to a first aspect of the invention, a kind of power supply switch and anti-jump control device is provided, be parallel to power transfer device, be connected between multiple-way supply power supply and the controlled electric equipment, described controlled electric equipment carries out power supply by power transfer device and switches, this power supply switch and anti-jump control device comprises: the multiple-way supply device is connected to the multiple-way supply power supply; Logic controller is connected to described multiple-way supply device by this multiple-way supply device power supply, is also connected to described controlled electric equipment; Wherein said multiple-way supply device is connected to the multiple-way supply power supply, guaranteeing still can be to described logic controller power supply when one road power supply breaks down therein, described logic controller makes described controlled electric equipment keep the operating state that links up when Switching power to the logic control signal that described controlled electric equipment output links up.
According to one embodiment of the invention, described logic controller is realized that by PLC described PLC provides " startup ", " stopping ", " RUN " and " fault " logic control at described controlled electric equipment at least.
According to one embodiment of the invention, described PLC realizes the logic control for a plurality of controlled electric equipments, described a plurality of controlled electric equipment realizes respectively that by a plurality of power transfer devices power supply switches, and the shared power transfer device of perhaps a plurality of controlled electric equipments realizes that power supply switches.
According to one embodiment of the invention, described multiple-way supply power supply comprises the duplex feeding power supply, I section power supply and II section power supply.
According to a second aspect of the invention, a kind of power supply switched system is provided, be connected between multiple-way supply power supply and the controlled electric equipment, when a road in the described multiple-way supply power supply breaks down, the power supply switched system is that controlled electric equipment carries out power supply switching continuation power supply, described power supply switched system comprises: power transfer device, be connected between multiple-way supply power supply and the controlled electric equipment, for carrying out power supply, controlled electric equipment switches, described power supply switched system also comprises the power supply switch and anti-jump control device, be parallel to power transfer device, be connected between multiple-way supply power supply and the controlled electric equipment, described controlled electric equipment carries out power supply by power transfer device and switches, and this power supply switch and anti-jump control device comprises: the multiple-way supply device is connected to the multiple-way supply power supply; Logic controller is connected to described multiple-way supply device by this multiple-way supply device power supply, is also connected to described controlled electric equipment; Wherein said multiple-way supply device is connected to the multiple-way supply power supply, guaranteeing still can be to described logic controller power supply when one road power supply breaks down therein, described logic controller makes described controlled electric equipment keep the operating state that links up when Switching power to the logic control signal that described controlled electric equipment output links up.
According to one embodiment of the invention, described logic controller is realized that by PLC described PLC provides " startup ", " stopping ", " RUN " and " fault " logic control at described controlled electric equipment at least.
According to one embodiment of the invention, described power supply switched system is connected to a plurality of controlled electric equipments, and described power supply switched system comprises several power transfer devices, is respectively a plurality of controlled electric equipments and carries out the power supply switching; Described PLC realizes the logic control for a plurality of controlled electric equipments.
According to one embodiment of the invention, described power supply switched system is connected to a plurality of controlled electric equipments, and described power supply switched system comprises a power transfer device, switches for a plurality of controlled electric equipments carry out power supply simultaneously; Described PLC realizes the logic control for a plurality of controlled electric equipments.
According to one embodiment of the invention, described multiple-way supply power supply comprises the duplex feeding power supply, I section power supply and II section power supply.
According to a third aspect of the invention we, a kind of power supply switch and anti-jump control method is provided, provide a power supply switch and anti-jump control device to be parallel to power transfer device, be connected between multiple-way supply power supply and the controlled electric equipment, described power supply switch and anti-jump control device comprises multiple-way supply device and logic controller, described method comprises: when a road in the multiple-way supply power supply broke down, power transfer device was that controlled electric equipment carries out the power supply switching; When power transfer device carried out the power supply switching, the multiple-way supply device of power supply switch and anti-jump control device was that the logic controller of described power supply switch and anti-jump control device carries out the power supply switching; To keep the logic control signal of output between transfer period constant himself carrying out power supply for the logic controller of described power supply switch and anti-jump control device; Carry out power supply between transfer period at controlled electric equipment, described logic controller provides coherent logic control signal to controlled electric equipment, and described controlled electric equipment keeps coherent operating state when Switching power.
According to one embodiment of the invention, described method also comprises: be respectively a plurality of controlled electric equipments by several power transfer devices and carry out the power supply switching; Described logic controller is respectively for a plurality of controlled electric equipment output logic control signals.
According to one embodiment of the invention, described method also comprises: switched for a plurality of controlled electric equipments carry out power supply jointly by a power transfer device; Described logic controller is respectively for a plurality of controlled electric equipment output logic control signals.
According to one embodiment of the invention, described multiple-way supply power supply comprises the duplex feeding power supply, I section power supply and II section power supply.
Adopt technical scheme of the present invention, both had the automatic switching function of power supply, the logic control signal that links up by logic controller output has solved the halting problem of controlled device in the power supply handoff procedure again.
Description of drawings
In the present invention, identical Reference numeral is represented identical feature all the time, wherein,
Fig. 1 is the structured flowchart of duplex feeding automatic switching control equipment of the prior art;
Fig. 2 is the structured flowchart according to the power supply switched system of the first embodiment of the present invention;
Fig. 3 is the electrical schematic diagram according to the power supply switched system of the first embodiment of the present invention;
Fig. 4 is the structured flowchart of power supply switched system according to a second embodiment of the present invention;
Fig. 5 is the electrical schematic diagram of power supply switched system according to a second embodiment of the present invention;
Fig. 6 is the structured flowchart of the power supply switched system of a third embodiment in accordance with the invention;
Fig. 7 is the electrical schematic diagram of the power supply switched system of a third embodiment in accordance with the invention;
Fig. 8 is the flow chart according to the power supply switch and anti-jump control method of one embodiment of the invention.
Embodiment
Further specify technical scheme of the present invention below in conjunction with drawings and Examples.
Design principle
Main design principle of the present invention is, a logic control circuit in parallel on multichannel (the being generally two-way) automatic power-supply switch that connects multichannel (normally two-way) power supply circuits and controlled electric equipment, usually realize by PLC, comprise multiple-way supply device and logic controller.When cut off the power supply, during the situation of power network fluctuations such as momentary power failure and under voltage, the multiple power supplies automatic switching control equipment can automatically switch, and guarantees that the power supply of controlled device is normal; The multiple-way supply device can guarantee that then logic controller is not disturbed by power network fluctuations such as outage, momentary power failure and under voltage; keep original state (the I/O logic state of PLC is constant) of equipment operation program in the logic controller, and then guarantee that controlled device realizes not shutting down (continuing normally to move) in two-way power supply handoff procedure.
The power supply switch and anti-jump control device
The present invention at first provides a kind of power supply switch and anti-jump control device, be parallel to power transfer device, be connected between multiple-way supply power supply and the controlled electric equipment, controlled electric equipment carries out power supply by power transfer device and switches, and this power supply switch and anti-jump control device comprises:
The multiple-way supply device is connected to the multiple-way supply power supply;
Logic controller is connected to the multiple-way supply device by this multiple-way supply device power supply, is also connected to controlled electric equipment;
Wherein the multiple-way supply device is connected to the multiple-way supply power supply, guarantee still can power when one road power supply breaks down therein to logic controller, logic controller makes controlled electric equipment keep the operating state that links up when Switching power to the logic control signal that controlled electric equipment output links up.
Wherein, logic controller is realized that by PLC PLC provides " startup ", " stopping ", " RUN " and " fault " logic control at controlled electric equipment at least.
PLC can realize the logic control for a plurality of controlled electric equipments, and a plurality of controlled electric equipments realize respectively that by a plurality of power transfer devices power supply switches, and the shared power transfer device of perhaps a plurality of controlled electric equipments realizes that power supply switches.
In the following description, all will be with the duplex feeding power supply, I section power supply and II section power supply are that example illustrates multiple-way supply power supply of the present invention, but for a person skilled in the art, be to be understood that the duplex feeding power supply only is an example of multiple-way supply power supply, according to explanation of the present invention, those skilled in the art can expand to the application of multiple-way supply power supply.
The structure of power supply switch and anti-jump control device and operation principle will describe in conjunction with the power supply switched system together by the following examples.
First embodiment
First embodiment is the application at single controlled electric equipment, comprising single power transfer device and single power supply switch and anti-jump control device.Fig. 2 is the structured flowchart according to the power supply switched system of the first embodiment of the present invention, and Fig. 3 is the electrical schematic diagram of the power supply switched system of the foregoing description.
With reference to figure 2, this power supply switched system 200 is connected in the multiple-way supply power supply, be between I section power supply 202 and II section power supply 204 and the controlled electric equipment 206 herein, when a road in the multiple-way supply power supply breaks down, power supply switched system 200 switches the continuation power supply for controlled electric equipment 206 carries out power supply, and power supply switched system 200 comprises:
This power supply switched system 200 also comprises power supply switch and anti-jump control device 210, be parallel to power transfer device 208, be connected in the multiple-way supply power supply, between I section power supply 202 and II section power supply 204 and the controlled electric equipment 206, controlled electric equipment 206 carries out power supply by power transfer device 208 and switches, and this power supply switch and anti-jump control device 210 comprises:
Multiple-way supply device 212 is connected to the multiple-way supply power supply, I section power supply 202 and II section power supply 204;
Wherein multiple-way supply device 212 is connected to the multiple-way supply power supply, I section power supply 202 and II section power supply 204, guaranteeing still can be to logic controller 214 power supply when one road power supply breaks down therein, logic controller 214 makes controlled electric equipment 206 keep the operating state that links up when Switching power to the logic control signal that controlled electric equipment 206 outputs link up.
In the embodiment shown in Figure 2, logic controller 214 realizes that by PLC PLC provides " startup ", " stopping ", " RUN " and " fault " logic control at controlled electric equipment 206 at least.
With reference to figure 3, Fig. 3 is the electrical schematic diagram according to the power supply switched system of the first embodiment of the present invention.The part in left side is the electrical schematic diagram of power transfer device and controlled electric equipment among Fig. 3, this part is identical with the electrical principle of prior art, therefore just be not described in detail here, during the part on Fig. 3 right side according to the electrical schematic diagram of the power supply switch and anti-jump control device of the first embodiment of the present invention.
At first, the multiple-way supply device comprises two AC/DC transducers, be connected respectively to I section power supply and II section power supply, convert the alternating current of 220V the working power of the direct current of 24V to as logic controller, when having one to break down in I section power supply and the II section power supply, this multiple-way supply device can switch to another power supply to guarantee the work of logic controller.Can export coherent control signal to guarantee the continuous operation of controlled device to guarantee logic controller.
With reference to figure 3, the electrical schematic diagram of this logic controller comprises, is example with the PLC controller among this embodiment, QD---start button, and the DI point (switching value input point) of a PLC, the address is made as I0.1, as device start; TZ---stop button, the DI point (switching value input point) of a PLC, the address is made as I0.2, stops as equipment; 1C---major loop contactor, its auxiliary contact, as the DI point (switching value input point) of PLC, the address is made as I0.3, as the feedback of the overtime fault of major loop contactor adhesive, promptly moves button; RJ1---thermal relay, its auxiliary contact, as the DI point (switching value input point) of PLC, the address is made as I0.4, as the feedback of equipment fault (overload), i.e. failure button; ZJ1---auxiliary relay, it is controlled by the DO point (switching value output point) of PLC, and the address is made as Q4.0, comes operation, parking and the scram of control appliance as the output of PLC.
Equipment operation.Press start button QD, the output Q4.0 of PLC is " 1 ", and intermediate relay ZJ 1 gets electric, thereby makes major loop contactor 1C adhesive, and equipment just enters normal running status.
The power supply switching principle is seen the power supply switch circuit among Fig. 3.Which road power supply selector switch XK1, XK2 should want equipment operation under in make position, can select by selector switch XK1, XK2.When one tunnel outage, automatically switch in another road.Suppose that selector switch XK1 closes earlier, then A.C. contactor C1 gets electric adhesive earlier, at this moment is the power supply of I section power supply.If I section power cut-off, A.C. contactor C1 dead electricity then, and by chain, A.C. contactor C2 gets electric adhesive, then be that II section power supply is powered this moment.
The powering mode of PLC is seen the PLC duplex feeding among Fig. 3.PLC is equipped with duplicate supply, promptly provides AC power (AC220V) respectively on I section, II section power supply, and at dc output end (DC24V) and be unified into one the road and insert PLC (the CPU module of PLC, the I/O module of PLC).Like this; one tunnel outage; one the tunnel still continues power supply; so can cut off the power supply; under power network fluctuation such as momentary power failure and the under voltage situation; the normal operation that guarantees the PLC controller is unaffected; operating PLC control logic in carrying out, program is not changed; the output Q4.0 of PLC still is " 1 "; intermediate relay ZJ 1 still; all the time be in attracting state, so just switch (C1 at power supply; the C2 exchange) moment, major loop contactor 1C almost finishes adhesive synchronously; guaranteed that controlled device can cut off the power supply; momentary power failure; under the situation of power network fluctuations such as under voltage, the realization controlled device is not shut down and is continued normal operation.
Thus, technical scheme of the present invention is by two-way automatic power-supply switch, PLC duplex feeding pattern (two AC220V/DC24V power modules, AC220V is respectively from the two-way power supply, and the DC24V parallel connection is road direction PLC power supply), PLC controller three parts constitute.In practice, when cut off the power supply, during the situation of power network fluctuations such as momentary power failure and under voltage, the two-way automatic power-supply switch can automatically switch, and guarantees that the power supply of controlled device is normal; PLC duplex feeding pattern can guarantee that then the PLC controller is not disturbed by power network fluctuations such as outage, momentary power failure and under voltage, the original state that keeps equipment operation program in the PLC controller, both the I/O logic state of PLC was constant, and then guaranteed that controlled device can continue normal operation under power network fluctuation situations such as outage, momentary power failure and under voltage.That is to say: cut off the power supply, under the situation of power network fluctuations such as momentary power failure and under voltage, power supply can only guarantee that from cutting apparatus the power supply of A2, B2, C2 three-phase bus is normal, but in the moment that power supply switches, the 1C coil is a dead electricity.Adopted the duplex feeding pattern just because of PLC, therefore the fluctuation (outage, momentary power failure and under voltage) of line voltage is a unperturbed to PLC, be that PLC keeps original control logic state constant, this also just guaranteed the moment ZJ1 that power supply switches be electricity condition.So, the 1C coil can be after dead electricity electricity again at once, almost automatically switch and finish synchronously with power supply, this time very short (＜1S depends on the mechanical speed of contactor adhesive) is not so influence the normal operation of controlled device.Here adopting PLC control and PLC duplex feeding pattern is the key of " behind the 1C coil losing electricity at once again ", for " anti-jump " function of controlled device provides high rapidity and reliability assurance.Except PLC, also can realize with other logic control circuit, but control loop to be wanted the many of complexity, rapidity can not be compared with adopting PLC control and PLC duplex feeding pattern with reliability, and applicable scope has significant limitation.Therefore, using PLC is preferable selection as loop control logic.
Second embodiment
In the second embodiment of the present invention, this power supply switched system carries out power supply to a plurality of controlled electric equipments and switches, this power supply switched system comprises several power transfer devices, is respectively a plurality of controlled electric equipments and carries out the power supply switching, by the logic control of PLC realization for a plurality of controlled electric equipments.
Fig. 4 is the structured flowchart of power supply switched system according to a second embodiment of the present invention, and Fig. 5 is the electrical schematic diagram of power supply switched system according to a second embodiment of the present invention.
With reference to figure 4, this power supply switched system 400 is connected in the multiple-way supply power supply, be between I section power supply 402 and II section power supply 404 and the controlled electric equipment 406 herein, when a road in the multiple-way supply power supply breaks down, power supply switched system 400 switches the continuation power supply for controlled electric equipment 406 carries out power supply, and power supply switched system 400 comprises:
Several power transfer devices 408 are connected in the multiple-way supply power supply, between I section power supply 202 and II section power supply 204 and several the controlled electric equipments 406,, several controlled electric equipments 406 switch for carrying out power supply,
This power supply switched system 400 also comprises power supply switch and anti-jump control device 410, be parallel to power transfer device 408, be connected in the multiple-way supply power supply, between I section power supply 402 and II section power supply 404 and the controlled electric equipment 406, controlled electric equipment 406 carries out power supply by power transfer device 408 and switches, and this power supply switch and anti-jump control device 410 comprises:
Multiple-way supply device 412 is connected to the multiple-way supply power supply, I section power supply 402 and II section power supply 404;
Wherein multiple-way supply device 412 is connected to the multiple-way supply power supply, I section power supply 402 and II section power supply 404, guaranteeing still can be to logic controller 414 power supply when one road power supply breaks down therein, logic controller 414 makes controlled electric equipment 406 keep the operating state that links up when Switching power to the logic control signal that controlled electric equipment 406 outputs link up.
With reference to figure 5, Fig. 5 compares with Fig. 3, and its difference is to have comprised in the PLC controller logic control for a plurality of controlled devices, and the operation principle of wherein each is identical with the operation principle of the PLC of the Fig. 3 that introduces above, just no longer repeats here.
The 3rd embodiment
In the third embodiment of the present invention, this power supply switched system carries out power supply to a plurality of controlled electric equipments and switches, this power supply switched system comprises a power transfer device, switches for a plurality of controlled electric equipments carry out power supply jointly, by the logic control of PLC realization for a plurality of controlled electric equipments.
Fig. 6 is the structured flowchart of the power supply switched system of a third embodiment in accordance with the invention, and Fig. 7 is the electrical schematic diagram of the power supply switched system of a third embodiment in accordance with the invention.
With reference to figure 6, this power supply switched system 600 is connected in the multiple-way supply power supply, be between I section power supply 602 and II section power supply 604 and the controlled electric equipment 606 herein, when a road in the multiple-way supply power supply breaks down, power supply switched system 600 switches the continuation power supply for controlled electric equipment 606 carries out power supply, and power supply switched system 600 comprises:
A power transfer device 608 is connected in the multiple-way supply power supply, between I section power supply 602 and II section power supply 604 and several the controlled electric equipments 606,, several controlled electric equipments 606 switch for carrying out power supply,
This power supply switched system 600 also comprises power supply switch and anti-jump control device 610, be parallel to power transfer device 608, be connected in the multiple-way supply power supply, between I section power supply 602 and II section power supply 604 and the controlled electric equipment 606, controlled electric equipment 606 carries out power supply by power transfer device 608 and switches, and this power supply switch and anti-jump control device 610 comprises:
Multiple-way supply device 612 is connected to the multiple-way supply power supply, I section power supply 602 and II section power supply 604;
Wherein multiple-way supply device 612 is connected to the multiple-way supply power supply, I section power supply 602 and II section power supply 604, guaranteeing still can be to logic controller 614 power supply when one road power supply breaks down therein, logic controller 614 makes controlled electric equipment 606 keep the operating state that links up when Switching power to the logic control signal that controlled electric equipment 606 outputs link up.
With reference to figure 6, Fig. 6 compares with Fig. 3, and its difference is to have comprised in the PLC controller logic control for a plurality of controlled devices, and the operation principle of wherein each is identical with the operation principle of the PLC of the Fig. 3 that introduces above, just no longer repeats here.Another difference is, added between single power transfer device and several the controlled electric equipments control switch (1C, 2C, 3C, RJ1, RJ2 RJ3) controls its switching.
According to a third aspect of the invention we, a kind of power supply switch and anti-jump control method also is provided, provide a power supply switch and anti-jump control device to be parallel to power transfer device, be connected between multiple-way supply power supply and the controlled electric equipment, the power supply switch and anti-jump control device comprises multiple-way supply device and logic controller, and described method 800 comprises:
802. when a road in the multiple-way supply power supply broke down, power transfer device was that controlled electric equipment carries out the Shen Yuan switching;
804. when power transfer device carried out the power supply switching, the multiple-way supply device of power supply switch and anti-jump control device was that the logic controller of power supply switch and anti-jump control device carries out the power supply switching;
To keep the logic control signal of output between transfer period constant 806. the logic controller of power supply switch and anti-jump control device is himself carrying out power supply;
808. carry out power supply between transfer period at controlled electric equipment, described logic controller provides coherent logic control signal to controlled electric equipment, described controlled electric equipment keeps coherent operating state when Switching power.
Wherein, when adopting method of the present invention to control a plurality of controlled device, also comprise:
Be respectively a plurality of controlled electric equipments by several power transfer devices and carry out the power supply switching;
Described logic controller is respectively for a plurality of controlled electric equipment output logic control signals.
Perhaps,
For carrying out power supply, a plurality of controlled electric equipments switch jointly by a power transfer device;
Described logic controller is respectively for a plurality of controlled electric equipment output logic control signals.
Wherein, the multiple-way supply power supply comprises the duplex feeding power supply, I section power supply and II section power supply.
Adopt technical scheme of the present invention, can obtain following technique effect:
Applied widely, letter has covered common power network fluctuation situations such as outage, momentary power failure, under voltage, has shown good practicability.
The high integration that the PLC controller is had makes control circuit become very simple.Device is few, connecting line is few, can significantly reduce the generation of fault such as loose contact, has improved the reliability of device, makes Maintenance and Repair also more convenient simultaneously.If adopt the touch-screen Communication Control, then control circuit can be more simple.
Extensibility is strong, and for example: 1. controlled device can independently be controlled, and high-power or important production equipment can adopt independent power supply from cutting apparatus and independently PLC control.2. controlled device also can adopt the team control mode, and according to actual needs, multiple devices both can adopt separately independently power supply from cutting apparatus and shared PLC control.But 3. controlled device also the shared power supply of multiple devices from cutting apparatus and shared PLC control.
In control, both be suitable for simple start-stop control, also be suitable for complicated automatic control (if desired, mix analog module, can realize such as liquid level, temperature, pressure etc. comparatively complicated automatic control), can not influence the anti-jump function of controlled device under the power network fluctuation situations such as outage, momentary power failure, under voltage.
Under normal circumstances, also can not shut down switching, be used for shifting and balance of duplex feeding system not shutting down of specific electric load by what the selector switch (XK1, XK2) of operation in " power supply is from cutting apparatus " carry out equipment.
Claims (13)
1. power supply switch and anti-jump control device, it is characterized in that, be parallel to power transfer device, be connected between multiple-way supply power supply and the controlled electric equipment, described controlled electric equipment carries out power supply by power transfer device and switches, and this power supply switch and anti-jump control device comprises:
The multiple-way supply device is connected to the multiple-way supply power supply;
Logic controller is connected to described multiple-way supply device by this multiple-way supply device power supply, is also connected to described controlled electric equipment;
Wherein said multiple-way supply device is connected to the multiple-way supply power supply, guaranteeing still can be to described logic controller power supply when one road power supply breaks down therein, described logic controller makes described controlled electric equipment keep the operating state that links up when Switching power to the logic control signal that described controlled electric equipment output links up.
2. anti-jump control device as claimed in claim 1 is characterized in that, described logic controller is realized that by PLC described PLC provides " startup ", " stopping ", " RUN " and " fault " logic control at described controlled electric equipment at least.
3. anti-jump control device as claimed in claim 2, it is characterized in that, described PLC realizes the logic control for a plurality of controlled electric equipments, described a plurality of controlled electric equipment realizes respectively that by a plurality of power transfer devices power supply switches, and the shared power transfer device of perhaps a plurality of controlled electric equipments realizes that power supply switches.
4. anti-jump control device as claimed in claim 3 is characterized in that, described multiple-way supply power supply comprises the duplex feeding power supply, I section power supply and II section power supply.
5. power supply switched system, be connected between multiple-way supply power supply and the controlled electric equipment, when a road in the described multiple-way supply power supply broke down, the power supply switched system was that controlled electric equipment carries out power supply switching continuation power supply, and described power supply switched system comprises:
Power transfer device is connected between multiple-way supply power supply and the controlled electric equipment, for carrying out power supply, controlled electric equipment switches,
It is characterized in that, described power supply switched system also comprises the power supply switch and anti-jump control device, be parallel to power transfer device, be connected between multiple-way supply power supply and the controlled electric equipment, described controlled electric equipment carries out power supply by power transfer device and switches, and this power supply switch and anti-jump control device comprises:
The multiple-way supply device is connected to the multiple-way supply power supply;
Logic controller is connected to described multiple-way supply device by this multiple-way supply device power supply, is also connected to described controlled electric equipment;
Wherein said multiple-way supply device is connected to the multiple-way supply power supply, guaranteeing still can be to described logic controller power supply when one road power supply breaks down therein, described logic controller makes described controlled electric equipment keep the operating state that links up when Switching power to the logic control signal that described controlled electric equipment output links up.
6. power supply switched system as claimed in claim 5 is characterized in that, described logic controller is realized that by PLC described PLC provides " startup ", " stopping ", " RUN " and " fault " logic control at described controlled electric equipment at least.
7. power supply switched system as claimed in claim 6 is characterized in that, described power supply switched system is connected to a plurality of controlled electric equipments, and described power supply switched system comprises
Several power transfer devices are respectively a plurality of controlled electric equipments and carry out the power supply switching; Described PLC realizes the logic control for a plurality of controlled electric equipments.
8. power supply switched system as claimed in claim 6 is characterized in that, described power supply switched system is connected to a plurality of controlled electric equipments, and described power supply switched system comprises
A power transfer device switches for a plurality of controlled electric equipments carry out power supply simultaneously; Described PLC realizes the logic control for a plurality of controlled electric equipments.
9. power supply switched system as claimed in claim 7 is characterized in that, described multiple-way supply power supply comprises the duplex feeding power supply, I section power supply and II section power supply.
10. power supply switch and anti-jump control method, provide a power supply switch and anti-jump control device to be parallel to power transfer device, be connected between multiple-way supply power supply and the controlled electric equipment, described power supply switch and anti-jump control device comprises multiple-way supply device and logic controller, and described method comprises:
When a road in the multiple-way supply power supply broke down, power transfer device was that controlled electric equipment carries out the power supply switching;
When power transfer device carried out the power supply switching, the multiple-way supply device of power supply switch and anti-jump control device was that the logic controller of described power supply switch and anti-jump control device carries out the power supply switching;
To keep the logic control signal of output between transfer period constant himself carrying out power supply for the logic controller of described power supply switch and anti-jump control device;
Carry out power supply between transfer period at controlled electric equipment, described logic controller provides coherent logic control signal to controlled electric equipment, and described controlled electric equipment keeps coherent operating state when Switching power.
11. power supply switch and anti-jump control method as claimed in claim 10 is characterized in that, described method also comprises:
Be respectively a plurality of controlled electric equipments by several power transfer devices and carry out the power supply switching;
Described logic controller is respectively for a plurality of controlled electric equipment output logic control signals.
12. power supply switch and anti-jump control method as claimed in claim 10 is characterized in that, described method also comprises:
For carrying out power supply, a plurality of controlled electric equipments switch jointly by a power transfer device;
Described logic controller is respectively for a plurality of controlled electric equipment output logic control signals.
13. power supply switch and anti-jump control method as claimed in claim 10 is characterized in that, described multiple-way supply power supply comprises the duplex feeding power supply, I section power supply and II section power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101161858A CN101150260B (en) | 2006-09-19 | 2006-09-19 | Power supply switch and anti-jump control method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2006101161858A CN101150260B (en) | 2006-09-19 | 2006-09-19 | Power supply switch and anti-jump control method and device |
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| Publication Number | Publication Date |
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| CN101150260A CN101150260A (en) | 2008-03-26 |
| CN101150260B true CN101150260B (en) | 2011-02-09 |
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| CN2006101161858A Expired - Fee Related CN101150260B (en) | 2006-09-19 | 2006-09-19 | Power supply switch and anti-jump control method and device |
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Families Citing this family (5)
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| CN104993577A (en) * | 2015-07-22 | 2015-10-21 | 上海高桥捷派克石化工程建设有限公司 | Power supply control system |
| CN105790432A (en) * | 2016-05-28 | 2016-07-20 | 唐山三友氯碱有限责任公司 | Multi-redundancy DCS power supply device having alarm function |
| CN107706917B (en) * | 2017-10-31 | 2023-07-21 | 北京建筑大学 | AC/DC micro-grid hybrid power supply |
| CN111244916B (en) * | 2020-03-08 | 2022-05-13 | 陕西航空电气有限责任公司 | Hardware interlocking method for key alternating current contactor in aviation power distribution system |
| CN111541251B (en) * | 2020-04-28 | 2021-11-02 | 国家计算机网络与信息安全管理中心 | Power distribution method and system for micro bus power supply system of data machine room |
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| CN1304201A (en) * | 2000-01-07 | 2001-07-18 | 三菱电机株式会社 | Switchover apparatus and method for electric source system |
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| CN1402411A (en) * | 2002-09-25 | 2003-03-12 | 常熟开关厂 | Automatic control device for diplex power change-over switch |
| CN2580660Y (en) * | 2002-10-08 | 2003-10-15 | 王志林 | Double power-supply control device |
| CN2718882Y (en) * | 2004-05-14 | 2005-08-17 | 中达电通股份有限公司 | Emergency power source system for intelligent carburetor |
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| CN1304201A (en) * | 2000-01-07 | 2001-07-18 | 三菱电机株式会社 | Switchover apparatus and method for electric source system |
| CN2524414Y (en) * | 2001-12-07 | 2002-12-04 | 汕头经济特区自动化电器设备总厂有限公司 | Three-phase power supply for emergency |
| CN1402411A (en) * | 2002-09-25 | 2003-03-12 | 常熟开关厂 | Automatic control device for diplex power change-over switch |
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