CN107666257A - Hydroenergy storage station back to back starting equipment connection method - Google Patents
Hydroenergy storage station back to back starting equipment connection method Download PDFInfo
- Publication number
- CN107666257A CN107666257A CN201711129242.0A CN201711129242A CN107666257A CN 107666257 A CN107666257 A CN 107666257A CN 201711129242 A CN201711129242 A CN 201711129242A CN 107666257 A CN107666257 A CN 107666257A
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- CN
- China
- Prior art keywords
- disconnecting switch
- starting
- bus
- generator
- generator motor
- Prior art date
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/54—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting two or more dynamo-electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/003—Systems for storing electric energy in the form of hydraulic energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
Abstract
The invention discloses a kind of hydroenergy storage station back to back starting equipment connection method, first, the machine pressure bus between the generator breaker of generator motor machine pressure and commutation disconnecting switch, draw and pick up dynamic the first starting of branch of a circuit connection disconnecting switch binding post, commutation isolated switch main transformer side terminal is electrically connected with main transformer low-pressure side binding post；2nd, the machine pressure bus leading between generator motor and generator breaker picks up dynamic branch of a circuit connection second and starts disconnecting switch binding post；3rd, the generator motor brake switch for compressor emergency shutdown is connected between the second starting disconnecting switch and the generator breaker；4th, first start between disconnecting switch outlet terminal and the second starting disconnecting switch outlet terminal after electrical connection, then draw and be connected to shared starting bus.The method have the advantages that any unit starts unit as motive power, remaining all unit can be started, the power station unit method of operation is flexible.
Description
Technical field
The present invention relates to large pumped storage power plant construction field, is set more particularly, to hydroenergy storage station back to back starting
Standby connection method.
Background technology
It is exactly that unit operation mode quantity is more that hydroenergy storage station, which is different from one of main feature of conventional hydropower station, accordingly
The electrical equipment quantity of configuration is also more.Distinguished from unit operation angle, conventional hydropower station operation is broadly divided into shutdown and generated electricity, fortune
Forwarding electricity is mainly shut down in the conversion of line mode, generating electricity turns to shut down.Hydroenergy storage station operation is broadly divided into shutdown, generates electricity and take out
Water, the conversion of the method for operation mainly shut down forwarding electricity, shut down turn to draw water, generates electricity turn to shut down, drawing water turns to shut down, generates electricity and turn take out
Water, draw water forwarding electricity etc.；The starting of unit pumping operation mode also very frequently, requires also high to its security reliability.Meanwhile draw water
When being changed between the method for operation and generator operation mode, generator motor machine pressure bus needs commutation, real by commutation disconnecting switch
It is existing；Bus is also required to commutation between back to back starting operating mode prime mover group and unit to be started, and is realized by starting disconnecting switch.
Home and abroad Construction of Pumped Storage Power Station is in the ascendant at present, and the pace of construction of hydroenergy storage station is accelerated, large-scale to take out
The pumping operation mode generator motor start mode selection of water storage station is based on inverter start up, using back to back starting as standby
Flowing mode is more conventional.Back to back starting is in inverter start up plant failure or the disappearance of varying frequency starting power supply, utilizes power station
Any one interior generator motor is as prime mover, and remaining each unit to be started draws water starting in synchronous pulling power station one by one
A kind of standby start mode.
Prior art generator motor start mode is selected based on inverter start up, using back to back starting as standby starting
The equipment connection mode of mode has the following disadvantages：
1st, back to back starting is complicated for the start loop electrical wiring of standby start mode, and security reliability is low；
2nd, inverter start up bus and the shared utilization rate of back to back starting bus are low, and bus equipment usage quantity is more, bus equipment
Investment is high；
3rd, back to back starting is more for the start loop electrical equipment quantity of standby start mode, and equipment arrangement requirement space is big.
The content of the invention
Present invention aims at a kind of hydroenergy storage station back to back starting equipment connection method is provided, reach water-storage
Power station generator motor back to back starting equipment connection is clear, and reliability is high；Bus equipment usage quantity is few, equipment arrangement requirement
Space reduces, and saves bus equipment investment；Accomplish that operation is flexible, makes an inspection tour convenient, easy access and maintenance purpose simultaneously.
To achieve the above object, the present invention takes following technical proposals：
Hydroenergy storage station back to back starting equipment connection method of the present invention, including it is arranged on the hydroenergy storage station
Interior multiple train units；The back to back starting equipment of each train unit connects as steps described below：
The first step, the machine pressure bus between the generator breaker of generator motor machine pressure and commutation disconnecting switch, draw and pick up
Dynamic branch of a circuit connection first starts disconnecting switch binding post, and the commutation disconnecting switch is located at main transformer side terminal
It is electrically connected with main transformer low-pressure side binding post；
Second step, the machine pressure bus between the generator motor and the generator breaker, draw and pick up dynamic branch of a circuit
Connection second starts disconnecting switch binding post；
3rd step, by the generator motor brake switch for compressor emergency shutdown, be connected to described second and start disconnecting switch and institute
Between stating generator breaker, it is easy to equipment to arrange；
4th step, described first are started between disconnecting switch outlet terminal and the second starting disconnecting switch outlet terminal electrically
After connection, then draw be connected to it is shared start bus, the shared bus that starts is being total to for inverter start up and back to back starting mode
With bus is started, realize that starting bus shares.
Advantage of the present invention embodies in the following areas：
1st, pump storage plant generator motor back to back starting, any unit start unit as motive power, can start it
Remaining all units, the power station unit method of operation are flexible；
2nd, for back to back starting as standby start mode, start mode main with frequency converter starts the shared utilization of bus, every large-scale
Hydroenergy storage station（Exemplified by being completed the Henan Baoguan 4 × 300MW of hydroenergy storage station to put into operation installations）Save female
5,280,000 yuan of line equipment investment（Calculated with 4 units of installation:The single-phase unit price of the investment reduction=bus × bus number of phases × saving bus
Length=0.8 ten thousand yuan/（M phases）× 3 phases × 220m=5,280,000 yuan）；Equipment arrangement space is also saved simultaneously, saves construction investment；
3rd, protected by the use of generator outlet breaker as back to back starting operating mode and start bus and started by starting unit, guarantee
Bus and by the reliable starting operation of the equipment safeties such as starting-generating motor；
4th, bus and the pressure bus electrical connection of generator machine will be started through two groups of starting disconnecting switch, and will realize and start unit and risen
Motivation group electric loop fixes commutation, and security reliability is high.
Brief description of the drawings
Fig. 1 is the back to back starting equipment wiring diagram of two train units in the embodiment of the present invention（First is expressed in figure
The equipment that train unit, the second train unit must configure, each equipment are hydroenergy storage station starting and its safe operation
The effect of providing safeguard）.
Fig. 2 is the back to back starting equipment connection layout drawing of the first train unit in the embodiment of the present invention（Expressed in figure
The position of first train unit back to back starting equipment, plays effective utilization to space）.
Fig. 3 is the starting disconnecting switch space commutation arrangement schematic diagram of the first train unit in the embodiment of the present invention（This figure
It is the expression layout drawing to accompanying drawing 2 using three-phase circuit；Expressed in figure prime mover group with by starting unit A phases and C phase commutations
Device space arrangement relation）.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings, the present embodiment using technical solution of the present invention before
Put and implemented, give detailed embodiment and specific operating process, but protection scope of the present invention is not limited to down
State embodiment.
As Figure 1-3, hydroenergy storage station back to back starting equipment connection method of the present invention, including be arranged on
The first train unit 1 and the second train unit 2 in the hydroenergy storage station.
The back to back starting equipment of first train unit 1 connects as steps described below：
The first step, generator motor 1.1 machine press bus 1.2 generator breaker 1.3 and commutation disconnecting switch 1.7 it
Between, draw and pick up dynamic the first starting of branch of a circuit connection binding post of disconnecting switch 1.5, commutation disconnecting switch 1.7 is located at main transformer pressure
Device wiring side terminal is electrically connected with the low-pressure side binding post of main transformer 1.8；The method of operation of drawing water and generator operation mode it
Between when changing, generator motor machine pressure bus 1.2 needs commutation, is realized by commutation disconnecting switch 1.7；Back to back starting operating mode is former
Bus is also required to commutation between motivation group and unit to be started, and is realized by the second starting disconnecting switch 1.4；
Second step, between the generator motor 1.1 and the generator breaker 1.3 machine pressure bus 1.2 draw pick up it is dynamic
Branch of a circuit connection second starts the binding post of disconnecting switch 1.4；
3rd step, the generator motor brake switch 1.6 by the electric braking shut down for this monoblock, it is connected to described
Two start between disconnecting switch 1.4 and the generator breaker 1.3, are easy to equipment to arrange；
4th step, described first start the outlet terminal of disconnecting switch 1.5 with described second start disconnecting switch 1.4 outlet terminal it
Between be electrically connected after, then draw be connected to it is shared start bus 3.1, the shared starting bus 3.1 is inverter start up and back-to-back
The shared starting bus of start mode, realize that starting bus shares；
The back to back starting equipment of second train unit 2 connects as steps described below：
The first step, generator motor 2.1 machine press bus 2.2 generator breaker 2.3 and commutation disconnecting switch 2.7 it
Between, draw and pick up dynamic the first starting of branch of a circuit connection binding post of disconnecting switch 2.5, commutation disconnecting switch 2.7 is located at main transformer pressure
Device side terminal is electrically connected with the low-pressure side binding post of main transformer 2.8；The method of operation of drawing water and generator operation mode it
Between when changing, generator motor machine pressure bus 2.2 needs commutation, is realized by commutation disconnecting switch 2.7；Back to back starting operating mode is former
Bus is also required to commutation between motivation group and unit to be started, and is realized by starting disconnecting switch 1.4.
Second step, the machine pressure bus 2.2 between the generator motor 2.1 and the generator breaker 2.3, which draw, to be connect
Start loop branch connection second starts the binding post of disconnecting switch 2.4；
3rd step, the generator motor brake switch 2.6 by the electric braking shut down for this monoblock, it is connected to described
Two start between disconnecting switch 2.4 and the generator breaker 2.3, are easy to equipment to arrange；
4th step, described first start the outlet terminal of disconnecting switch 2.5 with described second start disconnecting switch 2.4 outlet terminal it
Between be electrically connected after, then draw be connected to it is shared start bus 3.1, the shared starting bus 3.1 is inverter start up and back-to-back
The shared starting bus of start mode, realize that starting bus shares.
Analyzed according to scale of pumped-storage plant for installation number of units, single-machine capacity, the method for operation, select electricity generation and electromotion
The unit type and technical parameter of machine back to back starting mode electric loop.
Selection, which shares, starts bus, can meet varying frequency starting mode electrical technology parameter request, disclosure satisfy that and lean against again
Shoulder the electrical technology parameter request of flowing mode.
Now with the generator motor of the second train unit of back to back starting 2 of generator motor 1.1 of the first train unit 1
Exemplified by 2.1, the course of work is further illustrated：
Generator motor 1.1 and generator motor 2.1 are inactive state → commutation disconnecting switch 1.7 and commutation disconnecting switch
2.7 disconnections → brake switch 1.6 and brake switch 2.6 disconnect the → the second starting disconnecting switch 1.4 and first and start disconnecting switch
2.5 disconnections → generator breaker 2.3 disconnect → the first starting disconnecting switch 1.5 and second start disconnecting switch 2.4 close →
Generator breaker 1.3 closes（The starting process of generator breaker 1.3 has electic protection start loop and generator motor
2.1 function）→ speed governing valve is opened to the bath of the unit of generator motor 1.1, the synchronous pulling generator motor of generator motor 1.1
2.1 are carried out by zero-turn speed to rated speed → close commutation disconnecting switch 2.7 → using generator breaker 2.3 by phase sequence requirement
The same period（The same period is a professional term, refers to that different power grids will meet that the conditions such as condition requirement, frequency, voltage possess,
Then just can be with grid-connected combined floodgate, similar Aircraft Air refuels, and speed, relative position are consistent）, close generator breaker 2.3, hair
Electric motor 2.1 enters the method for operation → closing speed governing valve that draws water and washed by water to the unit of generator motor 1.1, disconnects generator and breaks
Road device 1.3, disconnect first and start the starting disconnecting switch 2.4 of disconnecting switch 1.5 and second, the compressor emergency shutdown of generator motor 1.1, fit
When close brake switch 1.6, until generator motor 1.1 remains static.
Sequence of maneuvers more than, generator motor 2.1 are the method for operation of drawing water, and generator motor 1.1, which leans against, to be shouldered
Dynamic generator motor 2.1 is completed.Generator motor 1.1 can continue to start remaining generator motor unit in water-storage and draw water
Operation.Hydroenergy storage station back to back starting equipment connection method of the present invention, any generating of hydroenergy storage station can be met
Motor unit starts as prime mover group to remaining generator motor unit pumping operation mode in hydroenergy storage station.
As shown in Figure 2,3, now with the first train unit 1 generator breaker 1.3, second start disconnecting switch 1.4,
Exemplified by first starts disconnecting switch 1.5 and generator motor brake switch 1.6, the spatial relation of its commutation arrangement is described,
Reach the connection of back to back starting device line is clear, operation flexibly, it is safe and reliable, make an inspection tour convenient, easy access and maintenance purpose.
Generator breaker 1.3, first starts the physical centre of disconnecting switch 1.5 and generator motor brake switch 1.6
Positioned at same vertical plane；Wherein, the physical centre position of the first starting disconnecting switch 1.5 and generator motor brake switch 1.6
In same level, and generator breaker 1.3 starts disconnecting switch 1.5 and generator motor brake switch 1.6 positioned at first
Between lower position.The weight of generator breaker 1.3 is big, and landing arrangement is most safe.
Second starting disconnecting switch 1.4 is located at the horizontal side above the end of incoming cables of generator motor brake switch 1.6.
Claims (1)
1. a kind of hydroenergy storage station back to back starting equipment connection method, including be arranged on more in the hydroenergy storage station
Individual train unit；It is characterized in that：The back to back starting equipment of each train unit connects as steps described below：
The first step, the machine pressure bus between the generator breaker of generator motor machine pressure and commutation disconnecting switch, draw and pick up
Dynamic branch of a circuit connection first starts disconnecting switch binding post, and the commutation disconnecting switch is located at main transformer side terminal
It is electrically connected with main transformer low-pressure side binding post；
Second step, the machine pressure bus between the generator motor and the generator breaker, draw and pick up dynamic branch of a circuit
Connection second starts disconnecting switch binding post；
3rd step, by the generator motor brake switch for compressor emergency shutdown, be connected to described second and start disconnecting switch and institute
Between stating generator breaker, it is easy to equipment to arrange；
4th step, described first are started between disconnecting switch outlet terminal and the second starting disconnecting switch outlet terminal electrically
After connection, then draw be connected to it is shared start bus, the shared bus that starts is being total to for inverter start up and back to back starting mode
With bus is started, realize that starting bus shares.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129242.0A CN107666257A (en) | 2017-11-15 | 2017-11-15 | Hydroenergy storage station back to back starting equipment connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711129242.0A CN107666257A (en) | 2017-11-15 | 2017-11-15 | Hydroenergy storage station back to back starting equipment connection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107666257A true CN107666257A (en) | 2018-02-06 |
Family
ID=61144637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711129242.0A Pending CN107666257A (en) | 2017-11-15 | 2017-11-15 | Hydroenergy storage station back to back starting equipment connection method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880337A (en) * | 2018-07-02 | 2018-11-23 | 清远蓄能发电有限公司 | A kind of locking of pump-storage generator GCB separating brake and unlocking system and method |
| CN110995064A (en) * | 2019-12-13 | 2020-04-10 | 中国电建集团中南勘测设计研究院有限公司 | Starting circuit commutation system of pumped storage power station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10174471A (en) * | 1996-12-06 | 1998-06-26 | Mitsubishi Electric Corp | Pumped-storage power station |
| CN202856380U (en) * | 2012-10-16 | 2013-04-03 | 国家电网公司 | Back-to-back start control circuit of water-pumping storage machine set |
| CN106249685A (en) * | 2016-08-26 | 2016-12-21 | 清远蓄能发电有限公司 | Pump-storage generator controls program full working scope Dynamic Simulation and Testing System and method |
-
2017
- 2017-11-15 CN CN201711129242.0A patent/CN107666257A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10174471A (en) * | 1996-12-06 | 1998-06-26 | Mitsubishi Electric Corp | Pumped-storage power station |
| CN202856380U (en) * | 2012-10-16 | 2013-04-03 | 国家电网公司 | Back-to-back start control circuit of water-pumping storage machine set |
| CN106249685A (en) * | 2016-08-26 | 2016-12-21 | 清远蓄能发电有限公司 | Pump-storage generator controls program full working scope Dynamic Simulation and Testing System and method |
Non-Patent Citations (7)
| Title |
|---|
| 刘胜: "天堂抽水蓄能电厂机组背靠背起动分析", 水电与新能源, no. 6, pages 54 - 56 * |
| 姜树德: "张河湾电站机组抽水工况启动方式简介", 抽水蓄能电站工程建设文集（2008）, pages 143 - 147 * |
| 康永林等: "300MW可逆式机组背靠背启动振荡分析及对策", 人民长江, vol. 47, no. 1, pages 95 - 99 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108880337A (en) * | 2018-07-02 | 2018-11-23 | 清远蓄能发电有限公司 | A kind of locking of pump-storage generator GCB separating brake and unlocking system and method |
| CN110995064A (en) * | 2019-12-13 | 2020-04-10 | 中国电建集团中南勘测设计研究院有限公司 | Starting circuit commutation system of pumped storage power station |
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