CN106968874A - Generator motor hydraulic oil jacking system control method - Google Patents
Generator motor hydraulic oil jacking system control method Download PDFInfo
- Publication number
- CN106968874A CN106968874A CN201710395950.2A CN201710395950A CN106968874A CN 106968874 A CN106968874 A CN 106968874A CN 201710395950 A CN201710395950 A CN 201710395950A CN 106968874 A CN106968874 A CN 106968874A
- Authority
- CN
- China
- Prior art keywords
- pump
- unit
- direct current
- generator motor
- hydraulic oil
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/008—Measuring or testing arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/06—Bearing arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro 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 generator motor hydraulic oil jacking system control method, including generator motor unit, unit local control unit controller（LCU）, generator motor hydraulic oil jacking system two high pressure oiling pumps of redundant configuration, an ac pump and a direct current stand-by pump, the direct current stand-by pump standby method of operation primary using ac pump.The present invention provide it is a kind of can take into account it is various in the case of hydraulic oil jacking system control strategy, can be in unit local control unit（LCU）When controller is normal, generator motor unit local control unit（LCU）When controller is abnormal, speed measuring device it is normal when, speed measuring device it is abnormal when when ensure the safe operation of thrust bearing shoe valve to greatest extent.
Description
Technical field
The present invention relates to the generator auxiliary equipment control field of hydroenergy storage station, and in particular to a kind of generator motor
Hydraulic oil jacking system control method.
Background technology
In the pump storage plant generator course of work, generator motor hydraulic oil jacking system is the important auxiliary of generator
Equipment is helped, in the generator motor unit low speed operation phase, oil film is set up between thrust bearing shoe and runner plate, to prevent
Dry friction occurs for thrust bearing shoe valve and runner plate and tile kilning, ensures the operation safety of thrust bearing shoe valve.
Generator motor hydraulic oil jacking system is due to its importance, usual two high pressure oiling pumps of redundant configuration.Take
One one standby working method of master.Conventional control strategy is usually that primary failure of pump switches to standby pump operation, and control logic can not
The safe operation of thrust bearing shoe valve is ensured to greatest extent.
The content of the invention：
The present invention provide it is a kind of can take into account it is various in the case of hydraulic oil jacking system control strategy, generator motor hydraulic oil
Two high pressure oiling pumps of jacking system redundant configuration, an ac pump, a straightway pump, primary using ac pump, straightway pump is standby
The method of operation, realizes the safe operation for ensureing thrust bearing shoe valve to greatest extent in all cases.
The technical scheme of use：A kind of generator motor hydraulic oil jacking system control method, including generator motor machine
Group, unit local control unit controller（LCU）, generator motor hydraulic oil jacking system two high-pressure injections of redundant configuration
Pump, an ac pump and a direct current stand-by pump, the direct current stand-by pump standby method of operation primary using ac pump are right respectively
Rate-determining steps when unit local control unit controller is normal and abnormal are as follows：
（1）Unit local control unit controller（LCU）When normal：
（a）Direct current stand-by pump test is carried out during unit starting first, after direct current stand-by pump test run is normal, stops direct current stand-by pump
Open ac pump；If the test of direct current stand-by pump is abnormal, locking unit starting, triggering is shut down；After the test of direct current stand-by pump is normal, exchange
The standby pump operation of direct current is cut again after being broken down in pump operation；
（b）During compressor emergency shutdown, when generating unit speed is less than setting value, start exchange pump operation, if occurring event in exchange pump operation
Barrier switches to the standby pump operation of direct current again；If performing emergency mechanical braking in the equal failure of two pumps, stopping process, shorten as far as possible
Unit downtime；
（2）Unit local control unit controller（LCU）When abnormal, two high pressure oiling pumps of force start AC and DC are provided with
Hard wire loop：
（a）For generating unit speed speed measuring device it is normal when, when 0<Generating unit speed<During 90% rated speed, hard wire loop is forced
Start two high pressure oiling pumps of AC and DC, prevent the unexpected dry friction of thrust bearing shoe valve from damaging；
（b）For generating unit speed speed measuring device it is abnormal when, straight, two high pressure oiling pumps of stream are handed in the force start of hard wire loop,
Prevent the unexpected dry friction of thrust bearing shoe valve from damaging.
Based on such scheme, if unit local control unit controller under normal circumstances compressor emergency shutdown when, if two pumps are equal
Emergency mechanical braking is performed in failure, stopping process, shortens the unit low speed coasting operation time as far as possible.
Beneficial effects of the present invention：The present invention provide it is a kind of can take into account it is various in the case of hydraulic oil jacking system control
Strategy, can be in unit local control unit（LCU）When controller is normal, generator motor unit local control unit（LCU）Control
When device processed is abnormal, speed measuring device it is normal when, speed measuring device it is abnormal when when ensure the safety fortune of thrust bearing shoe valve to greatest extent
OK.
Brief description of the drawings：
Fig. 1 is hydraulic oil jacking system control flow chart when opening machine when LCU controllers are normal；
Fig. 2 is hydraulic oil jacking system control flow chart when being shut down when LCU controllers are normal；
Hydraulic oil jacking system control flow chart when Fig. 3 is LCU controller failures.
Embodiment：
Embodiment：The present invention provide it is a kind of can take into account it is various in the case of hydraulic oil jacking system control strategy, can be in unit
Local control unit（LCU）When controller is normal, unit local control unit（LCU）When controller is abnormal, speed measuring device it is normal
When, speed measuring device it is abnormal when when ensure the safe operation of thrust bearing shoe valve to greatest extent.
Generator motor hydraulic oil jacking system two high pressure oiling pumps of redundant configuration, an ac pump, a straightway pump,
It is primary using ac pump, the standby method of operation of straightway pump.
Control method：
1st, unit local control unit（LCU）When controller is normal：
（1）Direct current stand-by pump test is first carried out during unit starting, after direct current stand-by pump test run is normal, stops straightway pump and opens exchange
Pump.The test of direct current stand-by pump is abnormal, and locking unit starting, triggering is shut down.After the test of direct current stand-by pump is normal, in exchange pump operation
Direct current pump operation is cut in failure.See that flow chart 1 is illustrated.
（2）During compressor emergency shutdown, when rotating speed is less than setting value, start exchange pump operation, if occurring event in exchange pump operation
Barrier switches to the standby pump operation of direct current.If performing emergency mechanical braking in the equal failure of two pumps, stopping process, shorten machine as far as possible
Group downtime, particularly the unit low speed coasting operation time.See that flow 2 is illustrated.
2nd, unit local control unit（LCU）When controller is abnormal, see that flow chart 3 is illustrated：
（1）When speed measuring device is normal, when 0<Generating unit speed<During 90% rated speed, hard wire loop force start AC and DC two
Platform high pressure oiling pump, prevents the unexpected dry friction of thrust bearing shoe valve from damaging.
（2）When speed measuring device is abnormal, two high pressure oiling pumps of hard wire loop force start alternating current-direct current prevent thrust bearing shoe valve from anticipating
Outer dry friction is damaged.
Claims (2)
1. a kind of generator motor hydraulic oil jacking system control method, including generator motor unit, unit local control list
Cell controller, it is characterised in that generator motor hydraulic oil jacking system two high pressure oiling pumps of redundant configuration, an ac pump
With a direct current stand-by pump, the direct current stand-by pump standby method of operation primary using ac pump, respectively to unit local control list
Rate-determining steps when cell controller is normal and abnormal are as follows：
（1）When unit local control unit controller is normal：
（a）Direct current stand-by pump test is carried out during unit starting first, after direct current stand-by pump test run is normal, stops direct current stand-by pump
Open ac pump；If the test of direct current stand-by pump is abnormal, locking unit starting, triggering is shut down；After the test of direct current stand-by pump is normal, exchange
The standby pump operation of direct current is cut again after being broken down in pump operation；
（b）During compressor emergency shutdown, when generating unit speed is less than setting value, start exchange pump operation, if occurring event in exchange pump operation
Barrier switches to the standby pump operation of direct current again；If performing emergency mechanical braking in the equal failure of two pumps, stopping process, shorten as far as possible
Unit downtime；
（2）When unit local control unit controller is abnormal, the hard cloth of two high pressure oiling pumps of force start AC and DC is provided with
Line loop：
（a）For generating unit speed speed measuring device it is normal when, when 0<Generating unit speed<During 90% rated speed, hard wire loop is forced
Start two high pressure oiling pumps of AC and DC, prevent the unexpected dry friction of thrust bearing shoe valve from damaging；
（b）For generating unit speed speed measuring device it is abnormal when, straight, two high pressure oiling pumps of stream are handed in the force start of hard wire loop,
Prevent the unexpected dry friction of thrust bearing shoe valve from damaging.
2. generator motor hydraulic oil jacking system control method according to claim 1, it is characterised in that unit is now
Control unit controller under normal circumstances compressor emergency shutdown when, if in the equal failure of two pumps, stopping process perform emergency mechanical braking,
Shorten the unit low speed coasting operation time as far as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395950.2A CN106968874B (en) | 2017-05-31 | 2017-05-31 | Generator motor high pressure oil jacking system control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395950.2A CN106968874B (en) | 2017-05-31 | 2017-05-31 | Generator motor high pressure oil jacking system control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106968874A true CN106968874A (en) | 2017-07-21 |
| CN106968874B CN106968874B (en) | 2019-03-15 |
Family
ID=59326140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710395950.2A Active CN106968874B (en) | 2017-05-31 | 2017-05-31 | Generator motor high pressure oil jacking system control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106968874B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336945A (en) * | 2018-02-11 | 2018-07-27 | 中科合成油工程股份有限公司 | Motor is mutually for control method |
| CN110966137A (en) * | 2019-12-23 | 2020-04-07 | 国网新源控股有限公司回龙分公司 | Secondary shutdown control method for pumped storage unit |
| CN111852750A (en) * | 2020-06-29 | 2020-10-30 | 国家电网有限公司 | Control method for air brake system of generator motor |
| CN115163393A (en) * | 2022-07-02 | 2022-10-11 | 中国长江电力股份有限公司 | Method for judging jacking of high-pressure oil of large-scale water turbine generator set |
| CN115163393B (en) * | 2022-07-02 | 2024-05-10 | 中国长江电力股份有限公司 | High-pressure oil jacking judging method for large-scale hydroelectric generating set |
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| US20060081419A1 (en) * | 2002-08-14 | 2006-04-20 | Care Ian C | Lubrication system |
| CN201068835Y (en) * | 2007-08-22 | 2008-06-04 | 天津市天发重型水电设备制造有限公司 | Heavy pressure jacking device |
| CN102003226A (en) * | 2010-12-13 | 2011-04-06 | 上海电气电站设备有限公司 | Turbine bearing lubricating oil supply system |
| CN102777756A (en) * | 2012-06-29 | 2012-11-14 | 东芝水电设备（杭州）有限公司 | Lubricating oil hydraulic system of bulb turbine unit and control method thereof |
| CN203335147U (en) * | 2013-07-05 | 2013-12-11 | 大唐华银电力股份有限公司金竹山火力发电分公司 | Lubricating oil system of turbo generator set |
| CN105298735A (en) * | 2015-12-15 | 2016-02-03 | 张方庆 | Safe and reliable bulb tubular turbine generator power-on and power-off control method |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060081419A1 (en) * | 2002-08-14 | 2006-04-20 | Care Ian C | Lubrication system |
| CN201068835Y (en) * | 2007-08-22 | 2008-06-04 | 天津市天发重型水电设备制造有限公司 | Heavy pressure jacking device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108336945A (en) * | 2018-02-11 | 2018-07-27 | 中科合成油工程股份有限公司 | Motor is mutually for control method |
| CN110966137A (en) * | 2019-12-23 | 2020-04-07 | 国网新源控股有限公司回龙分公司 | Secondary shutdown control method for pumped storage unit |
| CN110966137B (en) * | 2019-12-23 | 2021-02-05 | 国网新源控股有限公司回龙分公司 | Secondary shutdown control method for pumped storage unit |
| CN111852750A (en) * | 2020-06-29 | 2020-10-30 | 国家电网有限公司 | Control method for air brake system of generator motor |
| CN115163393A (en) * | 2022-07-02 | 2022-10-11 | 中国长江电力股份有限公司 | Method for judging jacking of high-pressure oil of large-scale water turbine generator set |
| CN115163393B (en) * | 2022-07-02 | 2024-05-10 | 中国长江电力股份有限公司 | High-pressure oil jacking judging method for large-scale hydroelectric generating set |
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| Publication number | Publication date |
|---|---|
| CN106968874B (en) | 2019-03-15 |
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