CN116677675A - Self-starting enabling control method, device and equipment for hydraulic system of hydropower station speed regulator - Google Patents
Self-starting enabling control method, device and equipment for hydraulic system of hydropower station speed regulator Download PDFInfo
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- CN116677675A CN116677675A CN202310535100.3A CN202310535100A CN116677675A CN 116677675 A CN116677675 A CN 116677675A CN 202310535100 A CN202310535100 A CN 202310535100A CN 116677675 A CN116677675 A CN 116677675A
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- hydraulic system
- speed regulator
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- 238000000034 method Methods 0.000 title claims abstract description 42
- 238000012544 monitoring process Methods 0.000 claims abstract description 31
- 230000006870 function Effects 0.000 claims description 58
- 238000003825 pressing Methods 0.000 claims description 18
- 230000009471 action Effects 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 description 20
- 238000002955 isolation Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- 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
- F03B15/02—Controlling by varying liquid flow
- F03B15/04—Controlling by varying liquid flow of turbines
- F03B15/06—Regulating, i.e. acting automatically
- F03B15/08—Regulating, i.e. acting automatically by speed, e.g. by measuring electric frequency or liquid flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
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- 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
Abstract
The invention discloses a self-starting enabling control method, a device and equipment of a hydraulic system of a hydropower station speed regulator, which are based on a computer monitoring system, wherein the monitoring system automatically collects parameters such as a unit state, a unit rotating speed, a unit guide vane servomotor locking position, pressure and oil level of a speed regulator pressure oil tank and the like, a speed regulator hydraulic system self-starting enabling control program is arranged on a unit LCU, and under the condition that the self-starting enabling function of the speed regulator hydraulic system is automatically put into operation, the program controls the pressure and the oil level of a speed regulator pressure oil tank of a standby unit in a normal range in real time according to preset logic, conditions and fixed values, so that the unit is ensured to be in a normal standby state at any time. The invention can control the pressure and the oil level of the pressure oil tank of the speed regulator of the standby unit in a normal range in real time without human intervention.
Description
Technical Field
The invention relates to the technical field of hydropower station speed regulators, in particular to a self-starting enabling control method, device and equipment for a hydraulic system of a hydropower station speed regulator.
Background
The speed regulator of the hydropower station is an important component part of the water turbine and is a key component for realizing the adjustment of the water turbine. The governor generally includes an electrical control portion and a hydraulic system portion. The hydraulic system part generally comprises a booster pump, a pressure oil tank, an oil return tank, an isolation valve, a main distributing valve, a guide vane sectional closing device, a servomotor, a locking spindle of the servomotor, a hydraulic system control valve group and the like. Under the shutdown state of the hydropower station unit, the hydraulic system of the speed regulator is stopped, the isolation valve is closed, but the pressure and the oil level of the pressure oil tank still need to be maintained at normal levels so as to ensure that the unit can be put into operation at any time. In the actual production process, although the hydraulic system of the speed regulator is stopped and the isolation valve is closed in the shutdown state of the unit, the pressure and the oil level of the pressure oil tank are gradually reduced because oil leakage and gas leakage are inevitably generated by the valve and the pipeline connected with the pressure oil tank, and the longer the standby time of the unit is, the more the pressure and the oil level of the pressure oil tank are reduced, the starting condition of the unit is affected to a certain extent, and if the pressure and the oil level are not manually adjusted to a normal range in time, the unit loses standby function.
Disclosure of Invention
The invention provides a self-starting enabling control method, a self-starting enabling control device and self-starting enabling control equipment for a hydraulic system of a hydropower station speed regulator, and aims to solve the problem that in the prior art, the pressure and the oil level of a pressure oil tank are lower and lower in a machine unit stopping state, so that the machine unit can lose standby functions. The invention aims to set a self-starting enabling control program of a speed regulator hydraulic system in a unit LCU (local control unit) to realize real-time control of the pressure and the oil level of a pressure oil tank of a speed regulator of a standby unit in a normal range without manual intervention.
The technical scheme adopted by the invention is as follows: the utility model provides a hydropower station speed regulator hydraulic system self-starting enabling control method, which comprises the following steps:
when the shutdown state of the hydropower station unit is monitored, the rotation speed of the unit is smaller than a fixed value of the shutdown rotation speed, the spindle locking of the unit guide vane servomotor is put into operation, the automatic control condition of the unit LCU is met, and the remote control condition of the unit speed regulator hydraulic system is met, all the operations are performed; the operation state of the hydraulic system of the unit speed regulator, the starting of the unit starting flow, the starting of the unit normal shutdown flow and the starting condition of the unit accident shutdown flow are all not operated; when the automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system is monitored to withdraw, the automatic start enabling manual control function of the speed regulator hydraulic system is thrown into the device to withdraw, and the automatic start enabling function of the speed regulator hydraulic system is thrown into the device automatically;
at the moment, if the pressure of the pressure oil tank of the speed regulator hydraulic system is monitored to be lower than the constant value of the self-starting enabling starting pressure and the oil level of the pressure oil tank of the speed regulator hydraulic system is monitored to be lower than the constant value of the self-starting enabling starting oil level, the self-starting enabling function of the speed regulator hydraulic system is activated, and the pressure and the oil level of the pressure oil tank of the speed regulator hydraulic system are restored to the normal range.
Further, the method further comprises the following steps:
when the shutdown state of the hydropower station unit is monitored, the rotation speed of the unit is smaller than a fixed value of the shutdown rotation speed, the spindle locking of the unit guide vane servomotor is put into operation, the automatic control condition of the unit LCU is met, and the remote control condition of the unit speed regulator hydraulic system is met, all the operations are performed; starting a unit starting flow, starting a unit normal shutdown flow, and stopping the unit accident shutdown flow under the starting condition of no action; when the automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system is monitored to withdraw, the automatic start enabling manual control function of the speed regulator hydraulic system is thrown into the device to withdraw, and the automatic start enabling function of the speed regulator hydraulic system is thrown into the device automatically;
and if the pressure of the pressure oil tank of the speed regulator hydraulic system is monitored to be higher than the self-starting enabling stopping pressure fixed value and the oil level of the pressure oil tank of the speed regulator hydraulic system is monitored to be higher than one of the self-starting enabling stopping oil level fixed value, and the running time of the speed regulator hydraulic system reaches the self-starting enabling allowable running time fixed value of the speed regulator hydraulic system, the self-starting enabling function of the speed regulator hydraulic system is stopped, and the speed regulator hydraulic system is stopped for standby.
The invention also provides a self-starting enabling control device of the hydraulic system of the hydropower station speed regulator, which comprises:
the first monitoring module is used for monitoring the shutdown state of the hydropower station unit, the unit rotating speed is smaller than a shutdown rotating speed fixed value, the unit guide vane servomotor is locked and put into operation, the unit LCU automatic control condition is met, and the remote control condition of the unit speed regulator hydraulic system is met; the operation state of the hydraulic system of the unit speed regulator, the starting of the unit starting flow, the starting of the unit normal shutdown flow and the starting condition of the unit accident shutdown flow are all not operated;
the first execution module is used for inputting the automatic start enabling manual control function of the speed regulator hydraulic system to withdraw when the first monitoring module monitors that the automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system withdraws, and inputting the automatic start enabling function of the speed regulator hydraulic system to withdraw;
and the first judging module is used for enabling the self-starting enabling function of the speed regulator hydraulic system to act when the first monitoring module monitors that the pressure of the pressure oil tank of the speed regulator hydraulic system is lower than the self-starting enabling starting pressure fixed value and the oil level of the pressure oil tank of the speed regulator hydraulic system is lower than the self-starting enabling starting oil level fixed value to act, and the speed regulator hydraulic system is started to restore the pressure and the oil level of the pressure oil tank of the speed regulator hydraulic system to the normal range.
Further, the method further comprises the following steps:
the second execution module is used for monitoring the shutdown state of the hydropower station unit, the unit rotating speed is smaller than a shutdown rotating speed fixed value, the unit guide vane servomotor is locked and put into operation, the unit LCU automatic control condition is met, and the remote control condition of the unit speed regulator hydraulic system is met; starting a unit starting flow, starting a unit normal shutdown flow, and stopping the unit accident shutdown flow under the starting condition of no action;
the second execution module is used for inputting the automatic start enabling manual control function of the speed regulator hydraulic system to withdraw when the second monitoring module monitors that the automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system withdraws, and inputting the automatic start enabling function of the speed regulator hydraulic system to withdraw;
and the second judging module is used for stopping the self-starting enabling function of the speed regulator hydraulic system and stopping the speed regulator hydraulic system when the second monitoring module monitors that the pressure of the pressure oil tank of the speed regulator hydraulic system is higher than one of the self-starting enabling stopping pressure fixed value and the oil level of the pressure oil tank of the speed regulator hydraulic system is higher than the self-starting enabling stopping oil level fixed value and the operation time of the speed regulator hydraulic system reaches the self-starting enabling permission operation time fixed value, and stopping the speed regulator hydraulic system for standby.
The invention also provides an electronic device comprising a processor coupled to a memory; the processor is configured to execute a computer program stored in the memory, so that the electronic device executes the self-starting enabling control method of the hydraulic system of the hydropower station speed regulator as described above.
The invention also provides a computer readable storage medium comprising a computer program or instructions which, when run on a computer, cause the computer to perform the hydropower station governor hydraulic system self-start enabling control method as described above.
The beneficial effects of the invention are as follows:
(1) The automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system is arranged in the invention, a user can flexibly control the switching of the automatic start enabling function of the speed regulator hydraulic system in the computer monitoring system, when the unit is in an operation or shutdown state, the automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system keeps to be out, the random group state is not required to be frequently adjusted, the automatic start enabling function of the speed regulator hydraulic system is always in a switching-in state, the function can be automatically switched in when the unit is actually in the shutdown state, and misoperation can be avoided when the unit is in operation. When the machine set is in a shutdown state for eliminating the defect or overhauling, if the self-starting enabling action of the speed regulator hydraulic system is required to be prevented from starting the hydraulic system, the self-starting enabling manual control soft pressing plate of the speed regulator hydraulic system is put into a computer monitoring system.
(2) According to the invention, when the conditions of the running state of the unit speed regulator hydraulic system, the starting-up flow of the unit, the normal shutdown flow of the unit, the starting-up flow of the unit accident shutdown flow and the like are not operated, the self-starting enabling function of the speed regulator hydraulic system can be automatically put into operation, so that the situation that the speed regulator hydraulic system is stopped by the self-starting enabling function by mistake when the unit speed regulator hydraulic system is in the running state or the unit is started up in the starting-up flow of the unit shutdown flow is avoided.
(3) The automatic start-up enabling starting pressure fixed value and the automatic start-up enabling starting oil level fixed value are set, when the automatic start-up enabling starting pressure fixed value and the automatic start-up enabling starting oil level fixed value are simultaneously met, and the machine set shutdown state of the hydropower station, the machine set rotating speed is smaller than the shutdown rotating speed fixed value, the machine set guide vane servomotor ingot locking input, the machine set LCU automatic control condition is met, the remote control condition of the machine set governor hydraulic system is met, and the like, the machine set governor hydraulic system operation state, the machine set startup procedure start, the machine set normal shutdown procedure start and the machine set accident shutdown procedure start are all not operated, and when the machine set shutdown state of the self start-up enabling manual control function of the input governor hydraulic system is also met, the machine set hydraulic system self start-up enabling function acts, and the governor hydraulic system starts. The automatic start-up enabling starting pressure fixed value and the automatic start-up enabling starting oil level fixed value are reasonably set according to the actual conditions of the hydropower station, but accident shutdown protection pressure and oil level fixed value of a pressure oil tank of a hydraulic system of a speed regulator should be avoided to ensure safety practically, and meanwhile proper distances from the normal pressure and the oil level fixed value of the pressure oil tank of the hydraulic system of the speed regulator are needed to be kept, so that frequent actions of the automatic start-up enabling function are avoided.
(4) The automatic start-up enabling and stopping pressure fixed value and the automatic start-up enabling and stopping oil level fixed value are set, when one of the automatic start-up enabling and stopping pressure fixed value and the automatic start-up enabling and stopping oil level fixed value is met, meanwhile, the running time of the hydraulic system of the speed regulator reaches the automatic start-up enabling and running time fixed value, the machine unit stopping state of the hydropower station, the machine unit rotating speed is smaller than the stopping rotating speed fixed value, the machine unit guide vane servomotor locking ingot input, the machine unit LCU automatic control condition is met, the remote control condition of the hydraulic system of the speed regulator of the machine unit is met, the machine unit starting process is started, the normal machine unit stopping process is started, the machine unit accident stopping process is started, the automatic start-up enabling function of the hydraulic system of the speed regulator is stopped, and the hydraulic system of the speed regulator is stopped. The self-starting enabling permission running time fixed value is reasonably set according to the actual condition of the hydropower station, so that the condition that the hydraulic system of the speed regulator stops after being started is avoided, and the adverse conditions of frequent running of the booster pump, frequent pressure impact of a pipeline and the like are prevented.
Drawings
Fig. 1 is a logic block diagram of a self-starting enabling control method of a hydraulic system of a hydropower station speed regulator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings, but embodiments of the present invention are not limited thereto.
Example 1:
the method is based on a computer monitoring system, the monitoring system automatically collects parameters such as a unit state, a unit rotating speed, a unit guide vane servomotor locking position, pressure and oil level of a speed regulator pressure oil tank, a speed regulator hydraulic system self-starting enabling (namely automatic starting function) control program is arranged on a unit LCU (local control unit), and under the condition that the speed regulator hydraulic system self-starting enabling function is automatically put into, the program controls the pressure and the oil level of the speed regulator pressure oil tank of a standby unit in a normal range in real time according to preset logic, conditions and fixed values, so that the unit is ensured to be in a normal standby state at any time.
Specifically, referring to fig. 1, the embodiment discloses a self-starting enabling control method for a hydraulic system of a hydropower station speed regulator, which includes:
when the condition that the hydropower station unit is in a shutdown state 3, the rotation speed of the unit is smaller than a shutdown rotation speed fixed value 4, the spindle locking input of a unit guide vane servomotor is 5, the automatic control condition of the unit LCU meets 6, the remote control condition of a unit speed regulator hydraulic system meets 7 and the like is monitored, the operation state 8 of the unit speed regulator hydraulic system, the start-up process of the unit 9, the start-up process of the unit normal shutdown process 10, the start-up process of the unit accident shutdown process 11 and the like are not operated; if the automatic start enabling manual control soft pressing plate 2 of the speed regulator hydraulic system in the computer monitoring system is withdrawn, the automatic start enabling manual control function 12 of the speed regulator hydraulic system is withdrawn, and the automatic start enabling function of the speed regulator hydraulic system is automatically withdrawn.
At this time, if the pressure of the pressure oil tank of the speed regulator hydraulic system is monitored to be lower than the self-starting enabling starting pressure fixed value 13 and the oil level of the pressure oil tank of the speed regulator hydraulic system is monitored to be lower than the self-starting enabling starting oil level fixed value 14, the self-starting enabling function of the speed regulator hydraulic system is activated, and the speed regulator hydraulic system is started 15 to restore the pressure and the oil level of the pressure oil tank of the speed regulator hydraulic system to the normal range.
When the condition that the hydropower station unit is in a shutdown state 3, the rotation speed of the unit is smaller than a shutdown rotation speed fixed value 4, the spindle locking input of a unit guide vane servomotor is 5, the automatic control condition of the unit LCU is 6, the remote control condition of a unit speed regulator hydraulic system is 7 and the like is monitored, the unit is started up in a normal shutdown process 10, and the unit is started up in an accident shutdown process 11 and the like; if the automatic start enabling manual control soft pressing plate 2 of the speed regulator hydraulic system in the computer monitoring system is withdrawn, the automatic start enabling manual control function 12 of the speed regulator hydraulic system is withdrawn, and the automatic start enabling function of the speed regulator hydraulic system is automatically withdrawn.
At the moment, if the pressure of the pressure oil tank of the speed regulator hydraulic system is monitored to be higher than the self-starting enabling stopping pressure fixed value 16 and the oil level of the pressure oil tank of the speed regulator hydraulic system is monitored to be higher than one of the self-starting enabling stopping oil level fixed value 17, and the running time of the speed regulator hydraulic system reaches the self-starting enabling permission running time fixed value 18 of the speed regulator hydraulic system, the self-starting enabling function of the speed regulator hydraulic system is stopped, the speed regulator hydraulic system is stopped 19, and the speed regulator hydraulic system is stopped for standby.
According to the invention, the self-starting enabling manual control soft pressing plate 2 of the speed regulator hydraulic system is arranged, a user can flexibly control the switching of the self-starting enabling function of the speed regulator hydraulic system in the computer monitoring system, when the unit is in an operation or shutdown state, the self-starting enabling manual control soft pressing plate 2 of the speed regulator hydraulic system keeps to be withdrawn, frequent adjustment along with the change of the state of the unit is not needed, the self-starting enabling function of the speed regulator hydraulic system is always in a switching-in state, and the function can be automatically switched in only when the unit is actually in the shutdown state, so that misoperation can not occur when the unit is in operation. When the machine set is in a shutdown state for eliminating the defect or overhauling, if the self-starting enabling action of the speed regulator hydraulic system is required to be prevented from starting the hydraulic system, the self-starting enabling manual control soft pressing plate 2 of the speed regulator hydraulic system is put into a computer monitoring system (after the self-starting enabling function of the speed regulator hydraulic system is withdrawn).
According to the invention, when the conditions of the operating state 8 of the unit speed regulator hydraulic system, the starting 9 of the unit starting process, the starting 10 of the unit normal stopping process, the starting 11 of the unit accident stopping process and the like are not operated, the automatic start-up enabling function of the speed regulator hydraulic system can be automatically put into operation, so that the error shutdown of the speed regulator hydraulic system by the automatic start-up enabling function in the operating state of the unit speed regulator hydraulic system or the starting process of the unit starting and stopping process is avoided.
The automatic start-up enabling pressure fixed value and the automatic start-up enabling oil level fixed value are set in the hydraulic power station, when the automatic start-up enabling pressure fixed value and the automatic start-up enabling oil level fixed value are met at the same time, the hydraulic power station unit stop state 3, the unit rotating speed less than the stop rotating speed fixed value 4, the unit guide vane servomotor locking ingot input 5, the unit LCU automatic control condition meeting 6, the unit speed regulator hydraulic system remote control condition meeting 7 and other conditions act, the unit speed regulator hydraulic system running state 8, the unit start-up process start 9, the unit normal stop process start 10 and the unit accident stop process start 11 do not act, and when the input speed regulator hydraulic system automatic start-up enabling manual control function 12 exit condition also meets, the speed regulator hydraulic system is started. The automatic start-up enabling starting pressure fixed value and the automatic start-up enabling starting oil level fixed value are reasonably set according to the actual conditions of the hydropower station, but accident shutdown protection pressure and oil level fixed value of a pressure oil tank of a hydraulic system of a speed regulator should be avoided to ensure safety practically, and meanwhile proper distances from the normal pressure and the oil level fixed value of the pressure oil tank of the hydraulic system of the speed regulator are needed to be kept, so that frequent actions of the automatic start-up enabling function are avoided.
The automatic start-up enabling and stopping pressure fixed value and the automatic start-up enabling and stopping oil level fixed value are set in the hydraulic system, when one of the automatic start-up enabling and stopping pressure fixed value and the automatic start-up enabling and stopping oil level fixed value is met, meanwhile, the running time of the hydraulic system of the speed regulator reaches the automatic start-up enabling and running time fixed value, the hydraulic system of the hydropower station is stopped in a stopping state 3, the rotating speed of the hydraulic system is smaller than a stopping rotating speed fixed value 4, the locking ingot of the guide vane servomotor of the machine set is put into 5, the automatic control condition of the LCU of the machine set meets 6, the remote control condition of the hydraulic system of the speed regulator of the machine set meets 7 and other conditions, the starting 9 of the machine set is started, the normal stopping process of the machine set is started 10, the stopping condition of the machine set accident stopping process is started, the automatic start-up enabling manual control function 12 of the hydraulic system of the machine set is stopped, and the hydraulic system of the speed regulator is stopped. The self-starting enabling permission running time fixed value is reasonably set according to the actual condition of the hydropower station, so that the condition that the hydraulic system of the speed regulator stops after being started is avoided, and the adverse conditions of frequent running of the booster pump, frequent pressure impact of a pipeline and the like are prevented.
Example 2:
the embodiment discloses a hydropower station speed regulator hydraulic system is from starting enabling controlling means, include:
the first monitoring module is used for monitoring the actions of the hydropower station unit in a shutdown state 3, the unit rotating speed is smaller than a shutdown rotating speed fixed value 4, the unit guide vane servomotor lock ingot input is 5, the unit LCU automatic control condition is 6, and the unit speed regulator hydraulic system remote control condition is 7; the operation state 8 of the hydraulic system of the unit speed regulator, the starting 9 of the unit startup flow, the starting 10 of the unit normal shutdown flow and the starting 11 of the unit accident shutdown flow are all not operated;
the first execution module is used for inputting the automatic start enabling manual control function of the speed regulator hydraulic system to withdraw when the first monitoring module monitors that the speed regulator hydraulic system is started enabling the manual control soft pressing plate 2 to withdraw, and inputting the automatic start enabling function of the speed regulator hydraulic system to withdraw;
and the first judging module is used for enabling the self-starting enabling function of the speed regulator hydraulic system to act when the first monitoring module monitors that the pressure of the pressure oil tank of the speed regulator hydraulic system is lower than the self-starting enabling starting pressure fixed value 13 and the oil level of the pressure oil tank of the speed regulator hydraulic system is lower than the self-starting enabling starting oil level fixed value 14 to act, and the speed regulator hydraulic system is started to restore the pressure and the oil level of the pressure oil tank of the speed regulator hydraulic system to the normal range.
Further, the device further comprises:
the second execution module is used for monitoring the shutdown state 3 of the hydropower station unit, the rotation speed of the unit is smaller than a shutdown rotation speed fixed value 4, the ingot locking input of the unit guide vane servomotor is 5, the automatic control condition of the unit LCU is 6, the remote control condition of the hydraulic system of the unit speed regulator is 7, and the unit is operated; the starting 9 of the unit starting flow, the starting 10 of the unit normal shutdown flow and the starting 11 of the unit accident shutdown flow are all not operated;
the second execution module is used for inputting the automatic start enabling manual control function of the speed regulator hydraulic system to withdraw when the second monitoring module monitors that the speed regulator hydraulic system is started enabling manual control soft pressing plate 2 to withdraw, and inputting the automatic start enabling function of the speed regulator hydraulic system to withdraw;
and the second judging module is used for stopping the self-starting enabling function of the speed regulator hydraulic system when the second monitoring module monitors that the pressure of the pressure oil tank of the speed regulator hydraulic system is higher than the self-starting enabling stopping pressure fixed value 16 and the oil level of the pressure oil tank of the speed regulator hydraulic system is higher than the self-starting enabling stopping oil level fixed value 17, and the running time of the speed regulator hydraulic system reaches the self-starting enabling permission running time fixed value 18 of the speed regulator hydraulic system, stopping the speed regulator hydraulic system and stopping the speed regulator hydraulic system for standby.
Example 3:
the embodiment discloses an electronic device, which comprises a processor, a memory, a control unit and a control unit, wherein the processor is coupled with the memory; the processor is configured to execute a computer program stored in the memory, so that the electronic device executes the self-start enabling control method of the hydraulic system of the hydropower station speed regulator according to embodiment 1.
Example 4:
the present embodiment discloses a computer-readable storage medium including a computer program or instructions which, when run on a computer, cause the computer to perform the self-start enabling control method of the hydraulic system of the hydropower station governor as described in embodiment 1.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (6)
1. A self-starting enabling control method of a hydraulic system of a hydropower station speed regulator is characterized by comprising the following steps:
when the shutdown state of the hydropower station unit is monitored, the rotation speed of the unit is smaller than a fixed value of the shutdown rotation speed, the spindle locking of the unit guide vane servomotor is put into operation, the automatic control condition of the unit LCU is met, and the remote control condition of the unit speed regulator hydraulic system is met, all the operations are performed; the operation state of the hydraulic system of the unit speed regulator, the starting of the unit starting flow, the starting of the unit normal shutdown flow and the starting condition of the unit accident shutdown flow are all not operated; when the automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system is monitored to withdraw, the automatic start enabling manual control function of the speed regulator hydraulic system is thrown into the device to withdraw, and the automatic start enabling function of the speed regulator hydraulic system is thrown into the device automatically;
at the moment, if the pressure of the pressure oil tank of the speed regulator hydraulic system is monitored to be lower than the constant value of the self-starting enabling starting pressure and the oil level of the pressure oil tank of the speed regulator hydraulic system is monitored to be lower than the constant value of the self-starting enabling starting oil level, the self-starting enabling function of the speed regulator hydraulic system is activated, and the pressure and the oil level of the pressure oil tank of the speed regulator hydraulic system are restored to the normal range.
2. The hydropower station governor hydraulic system self-starting enabling control method of claim 1, further comprising:
when the shutdown state of the hydropower station unit is monitored, the rotation speed of the unit is smaller than a fixed value of the shutdown rotation speed, the spindle locking of the unit guide vane servomotor is put into operation, the automatic control condition of the unit LCU is met, and the remote control condition of the unit speed regulator hydraulic system is met, all the operations are performed; starting a unit starting flow, starting a unit normal shutdown flow, and stopping the unit accident shutdown flow under the starting condition of no action; when the automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system is monitored to withdraw, the automatic start enabling manual control function of the speed regulator hydraulic system is thrown into the device to withdraw, and the automatic start enabling function of the speed regulator hydraulic system is thrown into the device automatically;
and if the pressure of the pressure oil tank of the speed regulator hydraulic system is monitored to be higher than the self-starting enabling stopping pressure fixed value and the oil level of the pressure oil tank of the speed regulator hydraulic system is monitored to be higher than one of the self-starting enabling stopping oil level fixed value, and the running time of the speed regulator hydraulic system reaches the self-starting enabling allowable running time fixed value of the speed regulator hydraulic system, the self-starting enabling function of the speed regulator hydraulic system is stopped, and the speed regulator hydraulic system is stopped for standby.
3. A hydropower station speed regulator hydraulic system self-starting enabling control device, comprising:
the first monitoring module is used for monitoring the shutdown state of the hydropower station unit, the unit rotating speed is smaller than a shutdown rotating speed fixed value, the unit guide vane servomotor is locked and put into operation, the unit LCU automatic control condition is met, and the remote control condition of the unit speed regulator hydraulic system is met; the operation state of the hydraulic system of the unit speed regulator, the starting of the unit starting flow, the starting of the unit normal shutdown flow and the starting condition of the unit accident shutdown flow are all not operated;
the first execution module is used for inputting the automatic start enabling manual control function of the speed regulator hydraulic system to withdraw when the first monitoring module monitors that the automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system withdraws, and inputting the automatic start enabling function of the speed regulator hydraulic system to withdraw;
and the first judging module is used for enabling the self-starting enabling function of the speed regulator hydraulic system to act when the first monitoring module monitors that the pressure of the pressure oil tank of the speed regulator hydraulic system is lower than the self-starting enabling starting pressure fixed value and the oil level of the pressure oil tank of the speed regulator hydraulic system is lower than the self-starting enabling starting oil level fixed value to act, and the speed regulator hydraulic system is started to restore the pressure and the oil level of the pressure oil tank of the speed regulator hydraulic system to the normal range.
4. A hydropower station governor hydraulic system self-enabling control apparatus as in claim 3, further comprising:
the second execution module is used for monitoring the shutdown state of the hydropower station unit, the unit rotating speed is smaller than a shutdown rotating speed fixed value, the unit guide vane servomotor is locked and put into operation, the unit LCU automatic control condition is met, and the remote control condition of the unit speed regulator hydraulic system is met; starting a unit starting flow, starting a unit normal shutdown flow, and stopping the unit accident shutdown flow under the starting condition of no action;
the second execution module is used for inputting the automatic start enabling manual control function of the speed regulator hydraulic system to withdraw when the second monitoring module monitors that the automatic start enabling manual control soft pressing plate of the speed regulator hydraulic system withdraws, and inputting the automatic start enabling function of the speed regulator hydraulic system to withdraw;
and the second judging module is used for stopping the self-starting enabling function of the speed regulator hydraulic system and stopping the speed regulator hydraulic system when the second monitoring module monitors that the pressure of the pressure oil tank of the speed regulator hydraulic system is higher than one of the self-starting enabling stopping pressure fixed value and the oil level of the pressure oil tank of the speed regulator hydraulic system is higher than the self-starting enabling stopping oil level fixed value and the operation time of the speed regulator hydraulic system reaches the self-starting enabling permission operation time fixed value, and stopping the speed regulator hydraulic system for standby.
5. An electronic device comprising a processor coupled to a memory; the processor is configured to execute a computer program stored in the memory, so that the electronic device executes the self-start enabling control method of the hydraulic system of the hydropower station speed regulator according to claim 1 or 2.
6. A computer readable storage medium comprising a computer program or instructions which, when run on a computer, cause the computer to perform the hydropower station governor hydraulic system self-enabling control method of claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310535100.3A CN116677675A (en) | 2023-05-12 | 2023-05-12 | Self-starting enabling control method, device and equipment for hydraulic system of hydropower station speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310535100.3A CN116677675A (en) | 2023-05-12 | 2023-05-12 | Self-starting enabling control method, device and equipment for hydraulic system of hydropower station speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116677675A true CN116677675A (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310535100.3A Pending CN116677675A (en) | 2023-05-12 | 2023-05-12 | Self-starting enabling control method, device and equipment for hydraulic system of hydropower station speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116677675A (en) |
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2023
- 2023-05-12 CN CN202310535100.3A patent/CN116677675A/en active Pending
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