CN206673564U - A kind of pump-storage generator accident standby trip protection device - Google Patents
A kind of pump-storage generator accident standby trip protection device Download PDFInfo
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- CN206673564U CN206673564U CN201720281380.XU CN201720281380U CN206673564U CN 206673564 U CN206673564 U CN 206673564U CN 201720281380 U CN201720281380 U CN 201720281380U CN 206673564 U CN206673564 U CN 206673564U
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Abstract
The utility model discloses a kind of pump-storage generator accident standby trip protection device; including controller, the first power of the assembling unit measurement module, the second power of the assembling unit measurement module, unit tachogenerator; first and second power of the assembling unit measurement modules are connected with external voltage transformer, current transformer, and unit tachogenerator is used for the rotating speed for detecting unit rotor；Controller includes CPU module, network communication module, speed measuring module, signal input module, signal output module; the input of network communication module is connected with the first power of the assembling unit measurement module, the second power of the assembling unit measurement module and outside main trip protection device; the input of speed measuring module is connected with unit tachogenerator; the input of signal input module is connected with external input signal, and the output end of signal output module is connected with outside executive agent.The utility model, can be with the safe operation of duplicate protection unit by setting standby trip protection device after main trip protection device.
Description
Technical field
Failure protecting device research field is the utility model is related to, more particularly to a kind of pump-storage generator accident standby is jumped
Lock protection device.
Background technology
Pump-storage generator is to be drawn water using electric energy during electric load low ebb to upper storage reservoir, in electric load peak period again
Discharge water to lower storage reservoir and generate electricity, the Automation Elements being related to are more, and operating condition is complicated, and monitored object is more, has very to safe operation
High request.For this reason, it may be necessary to it is monitored in real time in unit running process, as early as possible by unit when catastrophe failure occurs
Safety is stopped transport, to avoid the expansion of accident.
At present, pump-storage generator trip protection function is mainly by unit local control unit master controller by performing jump
Lock flow is realized.In order to increase the reliability of trip protection action, in addition to performing trip protection function by unit master controller,
It is general that unit failure standby trip protection hard wire loop, including trip signal input intermediate relay, jump can be also additionally set
Equipment operation loop etc. after lock actuating relay, trip operation.
But realize that accident standby trip protection function has 2 drawbacks using pure relay circuit：First, pure relay returns
The easy malfunction of the appearance of a street or tripping, reliability is not high, and maintenance workload is big；Second, pure relay circuit is not easy to increase new control and patrolled
Collect and function, autgmentability and flexibility be not strong.
Utility model content
The shortcomings that the purpose of this utility model is to overcome prior art and deficiency, there is provided a kind of pump-storage generator accident
Standby trip protection device, standby of the device as the main trip protection device of unit can be on the basis of existing protection device
The upper safety for further ensureing unit.
The purpose of this utility model is realized by following technical scheme：A kind of pump-storage generator accident standby tripping operation is protected
Protection unit, including controller, and the first coupled respectively power of the assembling unit measurement module, second power of the assembling unit measurement mould
Block, unit tachogenerator, the first and second power of the assembling unit measurement modules with external voltage transformer, current transformer phase
Even, permission performance number is disconnected for measuring unit power in order to judge whether to reach Generator Outlet Switchgear below；Unit is surveyed
The rotating speed that fast sensor is used to detect unit rotor allows to turn in order to judge whether to reach Generator Outlet Switchgear disconnection below
Speed value；The controller includes CPU module, and network communication module, speed measuring module, the signal being connected respectively with CPU module
Input module, signal output module, the input of network communication module and the first power of the assembling unit measurement module, second power of the assembling unit
Measurement module and the main trip protection device of outside unit failure are connected, input and the unit tachogenerator phase of speed measuring module
Even, the input of signal input module is connected with external input signal, the output end of signal output module and outside executive agent
It is connected.The utility model, can be with duplicate protection unit by setting standby trip protection device after main trip protection device
Safe operation.
Preferably, the unit tachogenerator uses current vortex proximity sensor.This sensor can turn in unit
When dynamic, the voltage change of rotor fluted disc jog is detected, corresponding voltage pulse signal is produced, control is sent to by hard wire
Speed measuring module in device processed.
Preferably, controller backplane slot or intermodule U-shaped connector are passed through between the modules in the controller
Connection.
Preferably, the outside executive agent tightly stops including Generator Outlet Switchgear, excitation unit, speed regulator, speed regulator
Valve, water intaking valve, water intaking valve tightly stop valve etc..
Further, the pump-storage generator accident standby trip protection device also includes alarm, alarm with
Signal output module is connected.
Further, the pump-storage generator accident standby trip protection device also includes display, display with
Signal output module is connected.
Preferably, the signal input module is configured with the On-off signal to match with required input number of signals and led to
Road, for being responsible for receiving each input signal.
Preferably, the signal output module is configured with the output switch parameter to match with required output signal quantity and led to
Road, for being responsible for sending each output signal.
Preferably, first power of the assembling unit measurement module, the second power of the assembling unit measurement module, network communication module are all provided with
There is network communication interface, carried out data transmission with network communication mode.
Further, the network communication module uses EPA communication protocol.
The utility model compared with prior art, has the following advantages that and beneficial effect：
1st, by setting standby trip protection device described in the utility model, Ke Yi after existing main trip protection device
When main trip protection device breaks down, remain to realize unit trip protection, or performed mainly in main trip protection device
The trip protection of part simultaneously, undertakes the trip protection work of secondary execution unit, further ensures the stable safety fortune of unit
OK.
2nd, compared to the unit failure standby trip protection hard wire loop set in traditional design, the utility model is convenient to be increased
Add new control logic and function, autgmentability and flexibility are strong, and reliability is high, and maintenance workload is small.
3rd, the utility model is configured with the power of the assembling unit measurement module of redundancy, can independent judgment unit tripping when power feelings
Condition, to send open command to Generator Outlet Switchgear when the power of the assembling unit drops to setting value.
4th, the utility model is configured with generating unit speed measurement module, can independent judgment unit tripping when speed conditions, with
Just open command is not sent to Generator Outlet Switchgear when generating unit speed is less than setting value.
5th, the utility model is configured with network communication module, can carry out data by EPA and other networked devices
Communication, the shared and logical combination of various states and warning message is facilitated to judge.
6th, signal output module is also respectively connected with alarm and display in the utility model, can be to the process of trip protection
Monitored in real time, to the fortuitous event progress of appearance and alarm.
Brief description of the drawings
Fig. 1 is the structural representation of the present embodiment device.
Fig. 2 is that signal moves towards exemplary plot in the work of the present embodiment device.
Embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment 1
As shown in figure 1, a kind of pump-storage generator accident standby trip protection device of the present embodiment, including controller, with
And distinguish the first coupled power of the assembling unit measurement module, the second power of the assembling unit measurement module, unit tachogenerator, first
Be connected with the second power of the assembling unit measurement module with external voltage transformer, current transformer, for measuring unit power so as to
Judge whether current power reaches Generator Outlet Switchgear and disconnect permission performance number later；Unit tachogenerator is used to detect
The rotating speed of unit rotor disconnects permission tachometer value in order to judge whether current rotating speed reaches Generator Outlet Switchgear below；It is described
Controller includes CPU module, and be connected respectively with CPU module network communication module, speed measuring module, signal input module,
Signal output module, passes through controller backplane slot between modules or intermodule U-shaped connector connects.Network communication module
Input and the first power of the assembling unit measurement module, the second power of the assembling unit measurement module and main trip protection of outside unit failure fills
Put connected, the input of speed measuring module is connected with unit tachogenerator, and input and the outside input of signal input module are believed
Number be connected, the output end of signal output module is connected with outside executive agent.Outside executive agent in the present embodiment specifically wraps
Include Generator Outlet Switchgear, excitation unit, speed regulator, speed regulator and tightly stop valve, water intaking valve, water intaking valve and tightly stop valve, alarm, display
Device etc..Signal trend is referring to Fig. 2 in its work.
In the present embodiment, CPU module is the core of unit failure standby trip protection device, is responsible for carrying out emergency stop valve trip letter
Number judge and logical process.
In the present embodiment, the first power of the assembling unit measurement module, the second power of the assembling unit measurement module are respectively provided with network service and connect
Mouthful, after the voltage and current signal that external voltage transformer summation current transformer is sent is received, unit is calculated and works as
Preceding active power and reactive power, and controller is sent to by network communication interface.It is configured with signal input module and institute
Needing the On-off signal passage that input signal quantity matches, each passage is respectively used to receive input signal, in practical application,
Input signal can be unit tripping trigger signal, Generator Outlet Switchgear position signalling, unit failure trip slot signal and its
Input signal needed for it, is repeated no more here.Likewise, it is configured with the present embodiment at signal output module and required output
The output switch parameter passage that number of signals matches, each passage is respectively used to send output signal, in practical application, output letter
Number can be disconnect Generator Outlet Switchgear (coil I) order, disconnect Generator Outlet Switchgear (coil II) order, stop excitation unit
Order output, the order of jump excitation unit, the order of stopping speed regulator, closing speed regulator tightly stop valve order, close water intaking valve order, close
Close water intaking valve and tightly stop valve order, and export unit failure trip signal, plant failure alarm signal and other letters for needing to export
Number, repeat no more here.
In the present embodiment, unit tachogenerator configures 1, using current vortex proximity sensor, by detecting unit
The voltage change of rotor fluted disc jog, produces corresponding voltage pulse signal during rotation, and control is sent to by hard wire
Speed measuring module in device, speed measuring module are responsible for receiving the voltage pulse signal that unit tachogenerator sends over, and pass through judgement
The voltage pulse quantity received calculates the real-time rotating speed of unit.
In the present embodiment, network communication module uses EPA communication protocol, is responsible for measuring with two powers of the assembling unit
Module and the main trip protection device of outside unit failure carry out data exchange.
Above-described embodiment is the preferable embodiment of the utility model, but embodiment of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from Spirit Essence of the present utility model with made under principle change, modify, replace
Generation, combination, simplify, should be equivalent substitute mode, be included within the scope of protection of the utility model.
Claims (10)
- A kind of 1. pump-storage generator accident standby trip protection device, it is characterised in that including controller, and respectively with its Connected the first power of the assembling unit measurement module, the second power of the assembling unit measurement module, unit tachogenerator, the first and second units Power measurement module is connected with external voltage transformer, current transformer；Unit tachogenerator is used to detect unit rotor Rotating speed；The controller includes CPU module, and network communication module, speed measuring module, the letter being connected respectively with CPU module Number input module, signal output module, the input of network communication module and the first power of the assembling unit measurement module, the second unit work( Rate measurement module and the main trip protection device of outside unit failure are connected, input and the unit tachogenerator phase of speed measuring module Even, the input of signal input module is connected with external input signal, the output end of signal output module and outside executive agent It is connected.
- 2. pump-storage generator accident standby trip protection device according to claim 1, it is characterised in that the unit Tachogenerator uses current vortex proximity sensor.
- 3. pump-storage generator accident standby trip protection device according to claim 1, it is characterised in that the control Connected between modules in device by controller backplane slot or intermodule U-shaped connector.
- 4. pump-storage generator accident standby trip protection device according to claim 1, it is characterised in that the outside Executive agent includes Generator Outlet Switchgear, excitation unit, speed regulator, speed regulator and tightly stops valve, water intaking valve, water intaking valve and tightly stop valve.
- 5. pump-storage generator accident standby trip protection device according to claim 1, it is characterised in that described to draw water Accumulation of energy unit failure standby trip protection device also includes alarm, and alarm is connected with signal output module.
- 6. pump-storage generator accident standby trip protection device according to claim 1, it is characterised in that described to draw water Accumulation of energy unit failure standby trip protection device also includes display, and display is connected with signal output module.
- 7. pump-storage generator accident standby trip protection device according to claim 1, it is characterised in that the signal Input module is configured with the On-off signal passage to match with required input number of signals.
- 8. pump-storage generator accident standby trip protection device according to claim 1, it is characterised in that the signal Output module is configured with the output switch parameter passage to match with required output signal quantity.
- 9. pump-storage generator accident standby trip protection device according to claim 1, it is characterised in that described first Power of the assembling unit measurement module, the second power of the assembling unit measurement module, network communication module are equipped with network communication interface, are led to network Letter mode carries out data transmission.
- 10. pump-storage generator accident standby trip protection device according to claim 9, it is characterised in that the net Network communication module uses EPA communication protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720281380.XU CN206673564U (en) | 2017-03-22 | 2017-03-22 | A kind of pump-storage generator accident standby trip protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720281380.XU CN206673564U (en) | 2017-03-22 | 2017-03-22 | A kind of pump-storage generator accident standby trip protection device |
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| Publication Number | Publication Date |
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| CN206673564U true CN206673564U (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720281380.XU Active CN206673564U (en) | 2017-03-22 | 2017-03-22 | A kind of pump-storage generator accident standby trip protection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631360A (en) * | 2018-04-10 | 2018-10-09 | 清远蓄能发电有限公司 | A kind of list outlet hydroenergy storage station multimachine removal of load synchronous trigger method and system |
-
2017
- 2017-03-22 CN CN201720281380.XU patent/CN206673564U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631360A (en) * | 2018-04-10 | 2018-10-09 | 清远蓄能发电有限公司 | A kind of list outlet hydroenergy storage station multimachine removal of load synchronous trigger method and system |
| CN108631360B (en) * | 2018-04-10 | 2020-04-14 | 清远蓄能发电有限公司 | Multi-machine load shedding synchronous triggering method and system for single-outlet pumped storage power station |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20221010 Address after: 511800 Qingyuan Pumped Storage Power Station office building, Longwan village committee, Taiping Town, Qingxin District, Qingyuan City, Guangdong Province Patentee after: QINGYUAN ENERGY STORAGE AND POWER GENERATION Co.,Ltd. Patentee after: China Southern power grid peak shaving and frequency modulation (Guangdong) energy storage technology Co.,Ltd. Address before: 511800 Longwan industrial zone, Taiping Town, Qingxin District, Qingyuan City, Guangdong Province Patentee before: QINGYUAN ENERGY STORAGE AND POWER GENERATION Co.,Ltd. |