CN205692765U - A kind of permanent magnetic vacuum breaker control system - Google Patents
A kind of permanent magnetic vacuum breaker control system Download PDFInfo
- Publication number
- CN205692765U CN205692765U CN201620513867.1U CN201620513867U CN205692765U CN 205692765 U CN205692765 U CN 205692765U CN 201620513867 U CN201620513867 U CN 201620513867U CN 205692765 U CN205692765 U CN 205692765U
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- CN
- China
- Prior art keywords
- permanent
- operating mechanism
- comparator
- magnet operating
- control system
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of permanent magnetic vacuum breaker control system, including static contact, moving contact, arc-chutes, insulated tension pole, stroke sensor, main shaft, operation axle, permanent-magnet operating mechanism, control module, described static contact, moving contact is arranged in arc-chutes, moving contact is connected with main shaft by insulated tension pole, described main shaft is connected with permanent-magnet operating mechanism by operation axle, described control module is connected with permanent-magnet operating mechanism and sends actuating signal to permanent-magnet operating mechanism, described stroke sensor is arranged on insulated tension pole, the travel feedback signal that stroke sensor detects sends control module to, current feedback signal on described permanent-magnet operating mechanism coil is connected with control module.This utility model passes through double-closed-loop control permanent-magnet operating mechanism, makes contacts movement features be in slave mode, improves robustness and the control accuracy of control system, it is ensured that the stability of permanent-magnet operating mechanism action, improves vacuum circuit breaker intellectualized operation level.
Description
Technical field
This utility model relates to permanent magnetic vacuum breaker and controls technical field, particularly relates to a kind of permanent magnetic vacuum breaker
Control system.
Background technology
Chopper is as switchgear important in power system, and it can be connected or disjunction under normal working condition
Load current, and it also is able to timely automated disengagement failure circuit when system is in overload, the malfunction such as short-circuit, under-voltage,
And then realize the protective effect to system electrical equipment and cable etc..After the system failure is excluded, chopper again can be rapid
Make system recovery normal power supply.Additionally, chopper both can carry out local operation, it is also possible to realize remotely operation.Vacuum is broken
Road device operating mechanism is not during using any control technology actuating, and switching-on phase is random, can cause power system
Transient process, reduces the safety of power system and stability, has a strong impact in power system once, the normal work of secondary device
Make.The intelligent control technology of research chopper can either improve breaker actuation stability, suppresses transient state process of electric power system, right
Conscientiously the important in inhibiting in service life of power system device is improved.But, can not in current control system actual motion
Enough accurately control switching-on phase and realize Synchronous Closing, power system is shoved and the rejection ability of overvoltage is low.
Utility model content
The purpose of this utility model realizes Synchronous Closing in order to accurately control switching-on phase, it is provided that a kind of permanent magnetism is true
Empty breaker control system, utilizes travel feedback signal, current feedback signal to compare with pre-programmed curve, by two close cycles control
Permanent-magnet operating mechanism processed, makes contacts movement features be in slave mode, improves robustness and the control accuracy of control system, protects
The stability of card permanent-magnet operating mechanism action, improves vacuum circuit breaker intellectualized operation level.
Solve the technical problem that required by this utility model and can be achieved through the following technical solutions:
A kind of permanent magnetic vacuum breaker control system, including static contact, moving contact, arc-chutes, insulated tension pole, stroke sensing
Device, main shaft, operation axle, permanent-magnet operating mechanism, control module, described static contact, moving contact be arranged in arc-chutes, and moving contact leads to
Crossing insulated tension pole to be connected with main shaft, described main shaft is connected with permanent-magnet operating mechanism by operation axle, described control module and permanent magnetism
Operating mechanism is connected and sends actuating signal to permanent-magnet operating mechanism, and described stroke sensor is arranged on insulated tension pole, stroke
The travel feedback signal that sensor detects sends control module, the current feedback signal on described permanent-magnet operating mechanism coil to
It is connected with control module.
Further, described arc-chutes are vacuum interrupter.
Further, described control module include rectifier bridge, PWM driving, the first comparator, the second comparator, selector,
First actuator, the second actuator, described first comparator input terminal is connected with reference to stroke curve and travel feedback signal, the
One comparator output terminal is connected with the input of selector；One output of selector is connected with the second comparator input terminal, separately
One outfan is connected through the first actuator and the second comparator input terminal；The input of described second comparator also with electric current
Feedback signal be connected, the second comparator output terminal through the second actuator, PWM drive be connected with rectifier bridge, described rectifier bridge and
Permanent-magnet operating mechanism is connected.
Further, the in-phase input end of described first comparator connects with reference to stroke curve, and anti-phase input termination stroke is anti-
Feedback signal.
Further, the in-phase input end of described second comparator is connected to the outfan of selector, the first actuator respectively
Outfan, reversed-phase output connects current feedback signal.
Further, described first actuator is pi regulator.
Further, described second comparator is pi regulator.
The beneficial effects of the utility model: a kind of permanent magnetic vacuum breaker control system, utilize travel feedback signal, electric current
Feedback signal compares with pre-programmed curve, by double-closed-loop control permanent-magnet operating mechanism, makes contacts movement features be in controlled
State, improves robustness and the control accuracy of control system, it is ensured that the stability of permanent-magnet operating mechanism action, improves vacuum and breaks
Road device intellectualized operation level.
Accompanying drawing explanation
Fig. 1 is this utility model control system theory diagram.
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and be easy to understand with effect, under
Face combines and is specifically illustrating, and this utility model is expanded on further.
When being embodied as, in conjunction with Fig. 1, a kind of permanent magnetic vacuum breaker control system, including static contact, moving contact, arc extinguishing
Room, insulated tension pole, stroke sensor, main shaft, operation axle, permanent-magnet operating mechanism, control module.Static contact, moving contact are arranged on
In arc-chutes, moving contact is connected with main shaft by insulated tension pole, and main shaft is connected with permanent-magnet operating mechanism by operation axle, controls mould
Block is connected with permanent-magnet operating mechanism and sends actuating signal to permanent-magnet operating mechanism, and stroke sensor is arranged on insulated tension pole,
The travel feedback signal that stroke sensor detects sends control module, the current feedback signal on permanent-magnet operating mechanism coil to
It is connected with control module.Arc-chutes are vacuum interrupter.Control module include rectifier bridge, PWM driving, the first comparator, second
Comparator, selector, the first actuator, the second actuator.First comparator in-phase input end is connected, instead with reference to stroke curve
Phase input is connected with travel feedback signal, and the first comparator output terminal is connected with the input of selector；One of selector
Output is connected with the second comparator in-phase input end, and another outfan of selector is through the first actuator and the second comparator
In-phase input end is connected；The inverting input of the second comparator is connected with current feedback signal, and the second comparator output terminal passes through
Second actuator, PWM drive and are connected with rectifier bridge, and rectifier bridge is connected with permanent-magnet operating mechanism.First actuator is pi regulator.
Second comparator is pi regulator.
During specific works, the double closed loop speed regulation system that this utility model control system uses controls, and internal ring is electric current loop, and outer shroud is
Position ring.Compared with the reference stroke curve preset by the travel feedback signal of real-time detection contact, obtain position ring
Deviation signal.When the deviation signal of position ring is in outer shroud deviation threshold, selector output bias signal (position curve)
After the first actuator (pi regulator) parameter regulates, the input signal as electric current loop compares with fed-back current signals,
The comparative result obtained regulates through the second actuator (pi regulator) parameter, determines PWM drive signal, it is achieved move contact
The closed loop control of characteristic.When outer shroud deviation signal is not in outer shroud deviation threshold, then selector output reference current curve is with anti-
Supply current signal compares, and the comparative result obtained regulates through the second actuator (pi regulator) parameter, determines that PWM drives
Signal, it is achieved the closed loop control to contacts movement features.Double-closed-loop control had both avoided the speed caused due to sensor error to ring
Should have overshoot, steady-state error relatively big, to shortcomings such as the adaptation ability of load, can effectively control again permanent-magnet operating mechanism contact
Stroke and coil current, make contacts movement features be in slave mode, improves robustness and the control accuracy of control system, protects
The stability of card permanent-magnet operating mechanism action, improves vacuum circuit breaker intellectualized operation level.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model also can
There are various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model is wanted
Protection domain is asked to be defined by appending claims and equivalent thereof.
Claims (7)
1. a permanent magnetic vacuum breaker control system, it is characterised in that: include that static contact, moving contact, arc-chutes, insulation are drawn
Bar, stroke sensor, main shaft, operation axle, permanent-magnet operating mechanism, control module, described static contact, moving contact are arranged on arc-chutes
In, moving contact is connected with main shaft by insulated tension pole, and described main shaft is connected with permanent-magnet operating mechanism by operation axle, described control
Module is connected with permanent-magnet operating mechanism and sends actuating signal to permanent-magnet operating mechanism, and described stroke sensor is arranged on insulation and draws
On bar, the travel feedback signal that stroke sensor detects sends control module, the electricity on described permanent-magnet operating mechanism coil to
Stream feedback signal is connected with control module.
2. according to a kind of permanent magnetic vacuum breaker control system described in claim 1, it is characterised in that: described arc-chutes are true
Empty arc-chutes.
3. according to a kind of permanent magnetic vacuum breaker control system described in claim 1, it is characterised in that: described control module bag
Include rectifier bridge, PWM driving, the first comparator, the second comparator, selector, the first actuator, the second actuator, described first
Comparator input terminal is connected with reference to stroke curve and travel feedback signal, the first comparator output terminal and the input of selector
It is connected；One output of selector is connected with the second comparator input terminal, and another outfan is through the first actuator and second
Comparator input terminal is connected；The input of described second comparator is also connected with current feedback signal, the second comparator output terminal
Driving be connected with rectifier bridge through the second actuator, PWM, described rectifier bridge is connected with permanent-magnet operating mechanism.
4. according to a kind of permanent magnetic vacuum breaker control system described in claim 3, it is characterised in that: described first comparator
In-phase input end connect with reference to stroke curve, anti-phase input termination travel feedback signal.
5. according to a kind of permanent magnetic vacuum breaker control system described in claim 3, it is characterised in that: described second comparator
In-phase input end be connected to the outfan of selector, the outfan of the first actuator respectively, reversed-phase output connect current feedback letter
Number.
6. according to a kind of permanent magnetic vacuum breaker control system described in claim 3, it is characterised in that: described first actuator
For pi regulator.
7. according to a kind of permanent magnetic vacuum breaker control system described in claim 3, it is characterised in that: described second comparator
For pi regulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513867.1U CN205692765U (en) | 2016-05-30 | 2016-05-30 | A kind of permanent magnetic vacuum breaker control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620513867.1U CN205692765U (en) | 2016-05-30 | 2016-05-30 | A kind of permanent magnetic vacuum breaker control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205692765U true CN205692765U (en) | 2016-11-16 |
Family
ID=57263178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620513867.1U Expired - Fee Related CN205692765U (en) | 2016-05-30 | 2016-05-30 | A kind of permanent magnetic vacuum breaker control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205692765U (en) |
-
2016
- 2016-05-30 CN CN201620513867.1U patent/CN205692765U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20180530 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |