CN203632584U - Excitation controller of synchronous motor - Google Patents
Excitation controller of synchronous motor Download PDFInfo
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- CN203632584U CN203632584U CN201320865841.XU CN201320865841U CN203632584U CN 203632584 U CN203632584 U CN 203632584U CN 201320865841 U CN201320865841 U CN 201320865841U CN 203632584 U CN203632584 U CN 203632584U
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- 230000005284 excitation Effects 0.000 title claims abstract description 76
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 58
- 230000003321 amplification Effects 0.000 claims abstract description 11
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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Abstract
The utility model relates to an excitation controller of a synchronous motor. The excitation controller comprises a control machine cabinet, and a synchronous motor excitation control circuit A, and a synchronous motor excitation control circuit B. The two sets of control circuits A and B are divided into two sets of A and B control main circuit boards, two sets of A and B channel circuit boards, and two sets of A and B excitation pulse amplification boards. The two circuit boards A and B are respectively arranged from the center to two side edges in the cabinet through bus sockets. The A and B circuits are provided with A and B synchronous motor excitation control circuit input switch boards between the main circuit boards. The front panel of the cabinet is provided with two sets of synchronous motor excitation control circuit working condition display lamps. A relatively independent control structure is formed in the circuit structure, control and protection of the excitation system can be independently completed, on-line hot plug replacing is realized, and an added commutation circuit realizes electric conversion of a host excitation device and a backup excitation device, thereby ensuring normal operation of the synchronous motor.
Description
Technical field
The utility model is particularly related to a kind of synchronous machinery excitation controller; for the control and protection of exciting device of synchronous motor loop of power circuit; in synchronous motor startup process, convert and catch motor speed by analog quantity; controlling excitation system throwing encourages and motor is entered synchronously; in running, automatically regulate exciting current according to power network fluctuation and load variations, motor is operated under constant power factor.
Background technology
When synchronous motor operation, need to control the excitation system of synchronous motor, the excitation control of synchronous motor is all a kind of hard connection control system arranging on a wiring board at present, the fault that can occur system is pointed out, dawn when system break down will shut down checks replacing parts, but synchronous motor restarting each time has strict program requirement, control procedure is strictly complicated, once particularly some constant voltage control appliances are shut down and will be produced into loss or damage, therefore there is the risk of shutting down in above-mentioned kind excitation Controlling operation method, be unfavorable for the safe operation of equipment.
Summary of the invention
The purpose of this utility model proposes a kind of synchronous machinery excitation controller technical scheme; for the control and protection of exciting device of synchronous motor loop of power circuit; the electronics switching that realizes active and standby excitation unit by setting up a commutation circuit, has guaranteed the normal operation of synchronous machine.
To achieve these goals, the technical solution of the utility model is: a kind of synchronous machinery excitation controller, comprise that controller cabinet and A, B two overlap synchronous machinery excitation control circuit, described A, B two overlap synchronous machinery excitation control circuit and are divided into that A, B two covers are controlled main circuit boards, A, B two overlap channel circuit board and A, B two overlap excitation pulse amplification board, described A, B two covers control main circuit boards, A, B two overlap channel circuit board and A, B two overlap bus hub that excitation pulse amplification board arranges by chassis backplane respectively in cabinet from the arrangement of pegging graft successively of central authorities to dual-side; The pulsed excitation signal that described A, B two overlap excitation pulse amplification board is connected to the magnetic field impulse signal accessory power outlet of cabinet rear board; Between A, B two cover control main circuit boards, be provided with A, B synchronous machinery excitation control circuit input switch boards, switch boards is inserted in the switch operating that is overlapped channel circuit board in bus hub by bus signal control A, B two, is provided with two cover synchronous machinery excitation control circuit operating state display lamps on the front panel of cabinet.
Scheme is further: described two cover synchronous machinery excitation control circuit operating state display lamps comprise respectively operation, hostdown, channel failure and pulse fault, two cover operations, hostdown, channel failure and pulse fault display lamp are arranged on the both sides of case front panel central authorities, set and power-factor measurement display in the power factor that is respectively arranged with up and down of central authorities of front panel central authorities.
Scheme is further: on described front panel, be provided with for A, B two overlap synchronous machinery excitation control circuit two involutions, change change over switch, two involutions, change change over switches and overlap for break-make A, B two power supply of synchronous machinery excitation control circuit.
Scheme is further: on described front panel, be provided with a read write line interface being connected with motor excitation control circuit by bus hub, a hand-hold type read-write controller is connected with motor excitation control circuit by read write line interface.
The beneficial effects of the utility model are: the links such as CPU, I/O, pulse shaping that circuit structure is integrated, have formed relatively independent control structure, control and protection that can complete independently excitation system.The utility model controller has independently completed all functions such as excitation control protection; and all control boards have all been realized function opposite independent; can realize online insertion and removal and change, the electronics that the commutation circuit of setting up realizes active and standby excitation unit switches, and has guaranteed the normal operation of synchronous machine.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the utility model chassis backplane structural representation;
Fig. 2 is the utility model circuit control logic schematic diagram;
Fig. 3 is the utility model front-panel structure schematic diagram.
Embodiment
A kind of synchronous machinery excitation controller, referring to Fig. 1 to Fig. 3, described controller comprises that controller cabinet and A, B two overlap synchronous machinery excitation control circuit, synchronous machinery excitation control circuit is a kind of control circuit of maturation, pulse generating circuit, amplifying circuit and pulse transformer buffer circuit are generally included, and feedback control circuit, be generally all made on a plate and control; Be that as the present embodiment difference described A, B two overlap synchronous machinery excitation control circuit and be divided into that A, B two covers are controlled main circuit board (motherboard), A, B two overlaps channel circuit board (channel plate) and A, B two overlap excitation pulse amplification board (pulse plate), described A, B two covers control main circuit boards, A, B two overlap channel circuit board and A, B two overlap bus hub JB1 to JB7 that excitation pulse amplification board arranges by chassis backplane respectively in cabinet from the arrangement (being called A system and B system) of pegging graft successively of central authorities to dual-side, JB8 is a socket for subsequent use; The pulsed excitation signal that described A, B two overlap excitation pulse amplification board is connected to the magnetic field impulse signal accessory power outlet of cabinet rear board; Between A, B two cover control main circuit boards, be provided with A, B synchronous machinery excitation control circuit input switch boards, switch boards is inserted in bus hub the electron channel switching over that overlaps channel circuit board by bus signal control A, B two and works, on the front panel of cabinet, be provided with two cover synchronous machinery excitation control circuit operating state display lamps, socket J9 and J10 are for guiding to front panel and rear board by the signal of two cover synchronous machinery excitation control circuits.
In embodiment, described two cover synchronous machinery excitation control circuit operating state display lamps comprise respectively operation, hostdown, channel failure and pulse fault, two cover operations, hostdown, channel failure and pulse fault display lamp are arranged on the both sides of case front panel central authorities, set and power-factor measurement display in the power factor that is respectively arranged with up and down of central authorities of front panel central authorities.For the ease of operation and monitoring, be also respectively arranged with closed loop in the both sides up and down of front panel, throw encourage, step-out, sky are opened jumpings, fast fusing, blower fan stop, and increasing magnetic, demagnetize, switching display lamp; This kind of gem-pure two cover excitation control circuit operating states of telling of topology layout.
On front panel and be provided with for A, B two overlap synchronous machinery excitation control circuit two involutions, change change over switch, two involutions, replacing change over switches overlap the power supply of synchronous machinery excitation control circuit for break-make A, B two, in the time that wherein a set of synchronous machinery excitation control circuit need to be changed control board, the power supply that cuts off this cover synchronous machinery excitation control circuit with involution, replacing change over switch is convenient to change; On case front panel, be also provided with open loop, closed loop change over switch for two cover control circuit closed-loop controls or open loop control, the effect of open loop, closed loop change over switch is that cut-out and connection feed back signal to two cover synchronous machinery excitation control circuits.
In embodiment, on described front panel, be provided with a read write line interface being connected with motor excitation control circuit by bus hub, a hand-hold type read-write controller is connected with motor excitation control circuit by read write line interface.
In service in reality, the setting of parameter and adjustment are all to carry out in two cover circuit simultaneously, therefore, in the time that a set of control circuit goes wrong, when switch boards automatically switches to another set of control circuit by electronic switch, control parameter be synchronous, the time of interruption be Millisecond be acceptable as synchronous machine, therefore can not affect the operation of synchronous motor.
In embodiment, on described cabinet rear board, be provided with synchronous motor operational state feedback signal Interface Terminal, Interface Terminal is connected to motor excitation control circuit by bus hub by feedback signal.
The present embodiment is for the control and protection of exciting device of synchronous motor loop of power circuit; in synchronous motor startup process, convert and catch motor speed by analog quantity; controlling excitation system throwing encourages and motor is entered synchronously; in running, automatically regulating exciting current according to power network fluctuation and load variations, is that motor operates under constant power factor.
The present embodiment, control main circuit board, channel plate, pulse plate, switch boards has formed synchronous machinery excitation control circuit, between all control boards, connect by data/address bus, controlling main circuit board is the control core of controller, it receives the information sending from channel plate, carry out corresponding logical process and numerical operation, bear results and export from channel plate, switch boards has been used for Parameter storage and switch between master and slave machines, channel plate is as the passage of motherboard and external information exchange, channel plate mainly completes level conversion, the inputs such as isolation, output function, in order to being produced to the pulse of Liu road, channel plate carries out level conversion and amplification, with pulse transformer MB, trigger impulse is that two burst pulses add spike pattern.
Claims (4)
1. a synchronous machinery excitation controller, comprise that controller cabinet and A, B two overlap synchronous machinery excitation control circuit, it is characterized in that, described A, B two overlap synchronous machinery excitation control circuit and are divided into that A, B two covers are controlled main circuit boards, A, B two overlap channel circuit board and A, B two overlap excitation pulse amplification board, described A, B two covers control main circuit boards, A, B two overlap channel circuit board and A, B two overlap bus hub that excitation pulse amplification board arranges by chassis backplane respectively in cabinet from the arrangement of pegging graft successively of central authorities to dual-side; The pulsed excitation signal that described A, B two overlap excitation pulse amplification board is connected to the magnetic field impulse signal accessory power outlet of cabinet rear board; Between A, B two cover control main circuit boards, be provided with A, B synchronous machinery excitation control circuit input switch boards, switch boards is inserted in the switch operating that is overlapped channel circuit board in bus hub by bus signal control A, B two, is provided with two cover synchronous machinery excitation control circuit operating state display lamps on the front panel of cabinet.
2. a kind of synchronous machinery excitation controller according to claim 1, it is characterized in that, described two cover synchronous machinery excitation control circuit operating state display lamps comprise respectively operation, hostdown, channel failure and pulse fault, two cover operations, hostdown, channel failure and pulse fault display lamp are arranged on the both sides of case front panel central authorities, set and power-factor measurement display in the power factor that is respectively arranged with up and down of central authorities of front panel central authorities.
3. a kind of synchronous machinery excitation controller according to claim 1, it is characterized in that, on described front panel, be provided with two involutions, the replacing change over switch that overlap synchronous machinery excitation control circuit for A, B two, two involutions, replacing change over switches overlap the power supply of synchronous machinery excitation control circuit for break-make A, B two.
4. a kind of synchronous machinery excitation controller according to claim 1, it is characterized in that, on described front panel, be provided with a read write line interface being connected with motor excitation control circuit by bus hub, a hand-hold type read-write controller is connected with motor excitation control circuit by read write line interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865841.XU CN203632584U (en) | 2013-12-26 | 2013-12-26 | Excitation controller of synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320865841.XU CN203632584U (en) | 2013-12-26 | 2013-12-26 | Excitation controller of synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203632584U true CN203632584U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320865841.XU Expired - Lifetime CN203632584U (en) | 2013-12-26 | 2013-12-26 | Excitation controller of synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203632584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104601056A (en) * | 2015-01-26 | 2015-05-06 | 瓮福（集团）有限责任公司 | Triggering control method of synchronous motor excitation device |
-
2013
- 2013-12-26 CN CN201320865841.XU patent/CN203632584U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104601056A (en) * | 2015-01-26 | 2015-05-06 | 瓮福（集团）有限责任公司 | Triggering control method of synchronous motor excitation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |