CN203206170U - Medium-and-small sized hydroelectric generating set intelligent control system - Google Patents
Medium-and-small sized hydroelectric generating set intelligent control system Download PDFInfo
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- CN203206170U CN203206170U CN 201320114032 CN201320114032U CN203206170U CN 203206170 U CN203206170 U CN 203206170U CN 201320114032 CN201320114032 CN 201320114032 CN 201320114032 U CN201320114032 U CN 201320114032U CN 203206170 U CN203206170 U CN 203206170U
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Abstract
The utility model relates to a medium-and-small sized hydroelectric generating set intelligent control system. The system is characterized in that the system comprises a PLC module, a field suppression module, a speed regulating module, a silicon controlled rectifier bridge, a vacuum circuit breaker, an exciting transformer, an automatic quasi-synchronizing module and a generator. According to the utility model, the PLC module is taken as the core, the field suppression module, the speed regulating module, the silicon controlled rectifier bridge, the vacuum circuit breaker, the exciting transformer, the automatic quasi-synchronizing module and the generator are organically integrated together, multiple functions, such as generator excitation, speed regulation, automatic quasi-synchronization, grid connection, grid disconnection, starting, stopping, protection, etc., can be realized, the process is simplified, the automation level is improved, and the PLC module is used to perform automatic recording while performing control, operators can query the history through a touch screen module, so the retrieval and analysis can be facilitated, and the failure troubleshooting process is easy.
Description
Technical field
The utility model belongs to the hydro-generating units field, especially a kind of Medium and Small Hydraulic Generator group intelligence control system.
Background technology
At present, 4.5 ten thousand of the built small hydropower stations of China, more than 5,400 ten thousand kilowatts of installed capacitys, national small power station planned the enforcement that has been in full swing for fuel engineering in 2009～2015 years, will increase newly for the fuel power station and install 1,700,000 kilowatts.Simultaneously, also in actively pushing forward, " 12 " new electrification of the countryside planning will increase 7,000,000 kilowatts of hydropower installed capacities newly to the new construction of countryside electrification counties of water power.In addition, also among actively promoting, will carry out the synergy extending capacity reformation future to 20,000,1,500 ten thousand kilowatts old power station to rural hydropower synergy capacity-expansion project.
The excitation of above-mentioned medium and small hydroelectricity generator, automatic presynchronization, be incorporated into the power networks, protect usually by several different manufacturer production, making; cause difficult in maintenance; when breaking down, often can not in time solve; usually affect the normal operation of medium waterpower generator station; cause control precision poor; therefore automatization level is low, develops a kind ofly specially for the Medium and Small Hydraulic Generator group, and the power generation control that satisfies unattended or few people's post is extremely urgent.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art part, and a kind of Medium and Small Hydraulic Generator group intelligence control system that control precision is high, automatization level is high is provided.
The purpose of this utility model is achieved in that
A kind of Medium and Small Hydraulic Generator group intelligence control system, it is characterized in that: comprise the PLC module, the demagnetization module, speed adjusting module, controllable silicon rectifying bridge, vacuum circuit-breaker, excitation transformer, automatic presynchronization module and generator, the port of described PLC module connects respectively the demagnetization module, speed adjusting module, one end of vacuum circuit-breaker and automatic presynchronization module and the control end of controllable silicon rectifying bridge, the demagnetization module is connected the other end and is connected generator with speed adjusting module, one end of controllable silicon rectifying bridge connects an end of generator, the other end of controllable silicon rectifying bridge connects an end of excitation transformer, the other end of excitation transformer connects the other end of generator, the other end of this generator connects electrical network by vacuum circuit-breaker, the current transformer of generator outlet and the output of voltage transformer, the output of the voltage transformer of electrical network and the current output terminal of excitation transformer all connect the PLC module, and the voltage transformer of generator outlet is connected the output of voltage transformer and is also connected the other end of automatic presynchronization module with electrical network.
And described PLC module connects controllable silicon rectifying bridge by pulse module.
And described PLC module connects the current transformer of generator outlet and the voltage transformer of voltage transformer and electrical network by isolation shaping conversion module.
And described PLC module also connects a touch screen module.
Advantage of the present utility model and good effect are:
In the utility model; take the PLC module as core; demagnetization module, speed adjusting module, controllable silicon rectifying bridge, vacuum circuit-breaker, excitation transformer, automatic presynchronization module and generator are organically combined; realized generator excitation, speed governing, automatic presynchronization, be incorporated into the power networks, the several functions such as suspension, start and stop and protection; simplified flow process; improved automatization level; and the PLC module is carried out automatic record in control; but operating personnel are by touch screen module query history record; be convenient to retrieval, analyze, be easy to the investigation of fault.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Be described in detail embodiment of the present utility model below in conjunction with accompanying drawing; Need to prove, the present embodiment is narrative, is not determinate, can not limit protection range of the present utility model with this.
A kind of Medium and Small Hydraulic Generator group intelligence control system, as shown in Figure 1, innovation of the present utility model is: comprise the PLC module, the demagnetization module, speed adjusting module, controllable silicon rectifying bridge, vacuum circuit-breaker, excitation transformer, automatic presynchronization module and generator, the port of described PLC module connects respectively the demagnetization module, speed adjusting module, one end of vacuum circuit-breaker and automatic presynchronization module and the control end of controllable silicon rectifying bridge, the demagnetization module is connected the other end and is connected generator with speed adjusting module, one end of controllable silicon rectifying bridge connects an end of generator, the other end of controllable silicon rectifying bridge connects an end of excitation transformer, the other end of excitation transformer connects the other end of generator, the other end of this generator connects electrical network by vacuum circuit-breaker, the current transformer 1 of generator outlet and the output of voltage transformer 2, the output of the voltage transformer 3 of electrical network and the current output terminal of excitation transformer all connect the PLC module, and the voltage transformer 2 of generator outlet is connected the output of voltage transformer 3 and is also connected the other end of automatic presynchronization module with electrical network
In the present embodiment, described PLC module connects controllable silicon rectifying bridge by pulse module.Described PLC module connects the output of voltage transformer 3 of output, electrical network of the current transformer 1 of generator outlet and voltage transformer 2 and the current output terminal of excitation transformer by isolation shaping conversion module.Described PLC module also connects a touch screen module.
Of the present utility modelly open, stopping process is:
Start process
1. operating personnel send start-up command, and the PLC module output signal makes the generator stator open starter-generator to speed adjusting module.
2. regulate the aperture of stator, make generator speed rise to rated speed.
3.PLC the analog quantity control signal of module output 0～10V is to impulse circuit, this impulse circuit sends trigger impulse and makes the controllable silicon rectifying bridge conducting.
4. controllable silicon rectifying bridge is transformed to direct current with the alternating current of excitation transformer secondary side, then flow to generator amature, the voltage of generator output continues to rise, during this period, the PLC module is constantly adjusted control signal, adjusts the ON time of controllable silicon rectifying bridge.
5. after the voltage of generator output rose to rated voltage, PLC module drive automatic presynchronization module was devoted oneself to work.
6. the pressure reduction between automatic presynchronization module automatic decision generator and the electrical network and frequency difference, after meeting the requirements, the automatic presynchronization module output signal that is incorporated into the power networks, PLC module drive vacuum circuit-breaker closes a floodgate, with generator connecting in parallel with system.
7.PLC module is given and encourage by force given adjusting exciting current and generator speed, active power and the reactive power of the output of control generator according to excitation.
Stopping process
1. operating personnel send halt instruction, and the PLC module reduces exciting current and the rotating speed of generator.
2. after exciting current and rotating speed were reduced to set point, PLC module controls vacuum circuit-breaker separating brake made generator break away from electrical network.
3.PLC module drives controllable silicon rectifying bridge by pulse module and closes, and drops into simultaneously the demagnetization module, and the remaining energy of rotor is absorbed through the demagnetization module, the output voltage of generator is reduced to zero.
4.PLC module is closed the stator of generator by speed adjusting module, finish shutdown.
In the utility model; take the PLC module as core; demagnetization module, speed adjusting module, controllable silicon rectifying bridge, vacuum circuit-breaker, excitation transformer, automatic presynchronization module and generator are organically combined; realized generator excitation, speed governing, automatic presynchronization, be incorporated into the power networks, the several functions such as suspension, start and stop and protection; simplified flow process; improved automatization level; and the PLC module is carried out automatic record in control; but operating personnel are by touch screen module query history record; be convenient to retrieval, analyze, be easy to the investigation of fault.
Claims (4)
1. Medium and Small Hydraulic Generator group intelligence control system, it is characterized in that: comprise the PLC module, the demagnetization module, speed adjusting module, controllable silicon rectifying bridge, vacuum circuit-breaker, excitation transformer, automatic presynchronization module and generator, the port of described PLC module connects respectively the demagnetization module, speed adjusting module, one end of vacuum circuit-breaker and automatic presynchronization module and the control end of controllable silicon rectifying bridge, the demagnetization module is connected the other end and is connected generator with speed adjusting module, one end of controllable silicon rectifying bridge connects an end of generator, the other end of controllable silicon rectifying bridge connects an end of excitation transformer, the other end of excitation transformer connects the other end of generator, the other end of this generator connects electrical network by vacuum circuit-breaker, the current transformer of generator outlet and the output of voltage transformer, the output of the voltage transformer of electrical network and the current output terminal of excitation transformer all connect the PLC module, and the voltage transformer of generator outlet is connected the output of voltage transformer and is also connected the other end of automatic presynchronization module with electrical network.
2. a kind of Medium and Small Hydraulic Generator group intelligence control system according to claim 1, it is characterized in that: described PLC module connects controllable silicon rectifying bridge by pulse module.
3. a kind of Medium and Small Hydraulic Generator group intelligence control system according to claim 1 and 2 is characterized in that: described PLC module connects the current transformer of generator outlet and the voltage transformer of voltage transformer and electrical network by isolation shaping conversion module.
4. a kind of Medium and Small Hydraulic Generator group intelligence control system according to claim 3, it is characterized in that: described PLC module also connects a touch screen module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114032 CN203206170U (en) | 2013-03-13 | 2013-03-13 | Medium-and-small sized hydroelectric generating set intelligent control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320114032 CN203206170U (en) | 2013-03-13 | 2013-03-13 | Medium-and-small sized hydroelectric generating set intelligent control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203206170U true CN203206170U (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320114032 Expired - Fee Related CN203206170U (en) | 2013-03-13 | 2013-03-13 | Medium-and-small sized hydroelectric generating set intelligent control system |
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| CN (1) | CN203206170U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607043A (en) * | 2013-10-11 | 2014-02-26 | 广东鸿源能源技术有限公司 | Hydropower station intelligent monitoring system |
| CN105673314A (en) * | 2016-02-29 | 2016-06-15 | 福建省智能科技有限公司 | Medium and small water-turbine generator set DSPIC comprehensive controller |
| CN113178118A (en) * | 2021-04-26 | 2021-07-27 | 中国能源建设集团广东省电力设计研究院有限公司 | Gas turbine starts grid-connected system based on movable mould emulation |
| CN116404923A (en) * | 2023-06-09 | 2023-07-07 | 南方电网调峰调频发电有限公司检修试验分公司 | Control parameter adjusting device and method of excitation system and storage medium |
-
2013
- 2013-03-13 CN CN 201320114032 patent/CN203206170U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607043A (en) * | 2013-10-11 | 2014-02-26 | 广东鸿源能源技术有限公司 | Hydropower station intelligent monitoring system |
| CN105673314A (en) * | 2016-02-29 | 2016-06-15 | 福建省智能科技有限公司 | Medium and small water-turbine generator set DSPIC comprehensive controller |
| CN113178118A (en) * | 2021-04-26 | 2021-07-27 | 中国能源建设集团广东省电力设计研究院有限公司 | Gas turbine starts grid-connected system based on movable mould emulation |
| CN113178118B (en) * | 2021-04-26 | 2023-02-17 | 中国能源建设集团广东省电力设计研究院有限公司 | Gas turbine starts grid-connected system based on movable mould emulation |
| CN116404923A (en) * | 2023-06-09 | 2023-07-07 | 南方电网调峰调频发电有限公司检修试验分公司 | Control parameter adjusting device and method of excitation system and storage medium |
| CN116404923B (en) * | 2023-06-09 | 2023-08-29 | 南方电网调峰调频发电有限公司检修试验分公司 | Control parameter adjusting device and method of excitation system and storage medium |
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| Date | Code | Title | Description |
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| 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: 20130918 Termination date: 20180313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |