CN115539297A - Main controller cold standby redundancy design method and system for offshore wind turbine generator system - Google Patents

Main controller cold standby redundancy design method and system for offshore wind turbine generator system Download PDF

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Publication number
CN115539297A
CN115539297A CN202211040168.6A CN202211040168A CN115539297A CN 115539297 A CN115539297 A CN 115539297A CN 202211040168 A CN202211040168 A CN 202211040168A CN 115539297 A CN115539297 A CN 115539297A
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China
Prior art keywords
main controller
relay
offshore wind
wind turbine
small
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CN202211040168.6A
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Chinese (zh)
Inventor
任娜
胡健彬
符少南
陈思范
张瑞
邹荔兵
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MingYang Smart Energy Group Co Ltd
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MingYang Smart Energy Group Co Ltd
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Priority to CN202211040168.6A priority Critical patent/CN115539297A/en
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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
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • 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
    • F03D—WIND MOTORS
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/845—Redundancy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/107—Purpose of the control system to cope with emergencies
    • F05B2270/1074—Purpose of the control system to cope with emergencies by using back-up controls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/50—Control logic embodiment by
    • F05B2270/502—Control logic embodiment by electrical means, e.g. relays or switches

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

The invention discloses a main controller cold standby redundancy design method and a system of an offshore wind turbine, the method is that a main controller redundancy design system is configured for each offshore wind turbine according to the operation requirement of the offshore wind turbine, the main controller redundancy design system comprises a first relay, a second relay, a small PLC, at least two main controllers A and a main controller B which are configured in the same way, when the small PLC detects that the main controller A for daily operation is in fault shutdown, the small PLC disconnects the first relay to disconnect the main controller A and closes the second relay to start the main controller B, and the shutdown time caused by the fault of the main controller A is shortened; the invention can solve the problem of long-time shutdown of the offshore wind turbine caused by failure and untimely maintenance of the main controller, and reduce the power generation loss of the offshore wind turbine.

Description

Main controller cold standby redundancy design method and system for offshore wind turbine generator system
Technical Field
The invention relates to the technical field of redundancy design of a main controller of a wind turbine generator, in particular to a redundancy design method and a redundancy design system for a cold standby of the main controller of an offshore wind turbine generator.
Background
The current development direction of wind power generator sets is large fans, deep open sea and floating type. For offshore wind power generation units in deep open sea, daily operation and maintenance and recovery after a fault occurs are difficult to realize and high in cost. The offshore unit needs to be operated on site by maintenance personnel, which is limited by weather conditions such as weather and sea waves, and the cost of renting ships for offshore operation becomes an important reason for high operation and maintenance cost of the offshore unit. Therefore, how to pass product reliability and equipment redundancy become important fields for offshore wind power generation set development.
Disclosure of Invention
The first purpose of the invention is to solve the defects in the prior art, and provide a method for designing the cold standby redundancy of the main controllers of offshore wind turbine generators, wherein each generator set is provided with two main controllers with the same type, when the generator set is stopped when any fault is detected in one of the main controllers, the system automatically starts the standby main controller, the configuration, the program and the parameters of the two main controllers are completely consistent, the influence on the operation control logic of the generator set can be avoided after the main controllers are switched, the stop time caused by the fault of the main controllers can be shortened, and the loss of the generated energy of the generator set can be reduced.
The invention also provides a wind turbine generator system multidimensional data management and analysis system.
The first purpose of the invention is realized by the following technical scheme: a main controller cold standby redundancy design method of an offshore wind turbine generator system is characterized in that a main controller redundancy design system is configured for each offshore wind turbine generator system according to operation requirements of the offshore wind turbine generator system, the main controller redundancy design system comprises a first relay, a second relay, a small PLC, at least two main controllers A and a main controller B which are configured in the same mode, the main controller A is electrically connected with a power supply of the offshore wind turbine generator system through the first relay, the main controller B is electrically connected with the power supply of the offshore wind turbine generator system through the second relay, the small PLCs are respectively in communication connection with the main controller A and the main controller B, when the small PLCs detect that the main controller A for daily operation stops due to faults, the small PLCs disconnect the first relays, enable the main controller A to be powered off, close the second relays, enable the main controller B to be started, and shorten the stop time caused by the faults of the main controller A.
Further, the method comprises the steps of:
s1, configuring a main controller redundancy design system for each offshore wind turbine according to the operation requirements of the offshore wind turbine;
s2, sequentially powering on a main controller A and a main controller B of a main controller redundancy design system, configuring a program and a parameter file, powering off the main controller B, starting the main controller A, sending power-off storage data and a heartbeat signal of the main controller A to the small PLC, and sending a heartbeat signal sent to the main controller A by an SCADA (supervisory control and data acquisition) system of an offshore wind farm data monitoring center to the small PLC;
s3, detecting the working state of the main controller A in real time by the small PLC; if the small PLC detects that the main controller A is in a normal working state, the small PLC continues to detect the working state of the main controller A; if the small PLC detects that the heartbeat signal sent by the main controller A is abnormal in state, executing a step S4;
s4, the small PLC judges whether the time of the abnormal state of the heartbeat signal sent by the main controller A reaches the preset delay time or not; if the time of the abnormal state of the heartbeat signal sent by the main controller A is less than the preset delay time, returning to the step S3; if the time of the abnormal state of the heartbeat signal sent by the main controller A reaches the preset delay time, the main controller A is stopped, and the step S5 is executed;
s5, the small PLC opens the first relay to power off the main controller A, closes the second relay to start the main controller B;
and S6, the small PLC sends the power-down saving data received from the main controller A to the main controller B, and finally the main controller B replaces the main controller A to work.
Further, the step S1 includes the steps of:
according to the operation requirement of offshore wind turbine, configure main control unit redundancy design system to every offshore wind turbine, main control unit redundancy design system includes main control unit A and the main control unit B of distributing type IO module, small-size PLC and two at least the same configurations, main control unit A and main control unit B all adopt the power supply of offshore wind turbine to supply power, small-size PLC is connected with main control unit A and main control unit B communication respectively, the distributing type IO module is connected with the small-size PLC communication, first relay and second relay all are connected with the distributing type IO module.
Further, the step S2 includes the steps of:
the method comprises the steps of firstly powering on a main controller A of a main controller redundancy design system, downloading a program and a parameter file to the main controller A, then manually disconnecting a power supply of the main controller A, powering on a main controller B, downloading a program and a parameter file which are completely consistent with the main controller A to the main controller B, finally disconnecting the power supply of the main controller B, then powering on the main controller A again, starting the main controller A, connecting the main controller A with an SCADA system of an offshore wind farm data monitoring center in a communication manner, enabling a small PLC initial command to be a first relay to be closed, disconnecting a second relay, meanwhile, collecting auxiliary contacts of the first relay and the second relay through a distributed IO module to judge that the main controller in a power supply state is the main controller A, and sending power-down storage data and a heartbeat signal of the main controller A and sending a heartbeat signal to the small PLC by the SCADA system.
Further, the step S3 includes the steps of:
the small PLC detects whether the heartbeat signal sent by the main controller A is disconnected in real time: if the small PLC can continuously receive the normal heartbeat signal sent by the main controller A, the small PLC represents that the main controller A works normally, and the small PLC continuously keeps detecting the working state of the main controller A; and if the small PLC detects that the heartbeat signal sent by the main controller A is disconnected, executing the step S4.
Further, the step S4 includes the steps of:
if the small PLC detects that the heartbeat signal sent by the main controller A is disconnected, judging whether the disconnection time of the heartbeat signal reaches preset delay time; if the disconnection time of the heartbeat signal does not reach the preset delay time, the small PLC returns to continuously detect whether the heartbeat signal sent by the main controller A is disconnected; and if the off time of the heartbeat signal reaches the preset delay time, the main controller A is in a shutdown state, and the step S5 is executed.
Further, the step S5 includes the steps of:
and the small PLC disconnects the first relay to power off the main controller A, closes the second relay to start the main controller B, and the main controller B is in communication connection with the SCADA system of the offshore wind farm data monitoring center.
Further, the step S6 includes the steps of:
the small PLC sends the power-down saving data received from the main controller A to the main controller B, the main controller B replaces the main controller A to work, the small PLC acquires auxiliary contacts of the first relay and the second relay through the distributed IO modules to judge that the main controller in the power supply state is the main controller B, and meanwhile the main controller B sends the power-down saving data and the heartbeat signal sent to the main controller B by the SCADA system to the small PLC.
The second purpose of the invention is realized by the following technical scheme: a main controller cold standby redundancy design system of an offshore wind turbine is used for realizing the main controller cold standby redundancy design method of the offshore wind turbine, and comprises the following steps: the system comprises a first relay, a second relay, a distributed IO module, a small PLC, and at least two main controllers A and B which are configured identically; main control unit A is connected through the power supply electricity of first relay with offshore wind turbine generator system, main control unit B is connected through the power supply electricity of second relay with offshore wind turbine generator system, small-size PLC passes through the switch and is connected with main control unit A and main control unit B communication, just small-size PLC is connected with distributed IO module communication, first relay and second relay are connected respectively to the DO passageway of distributed IO module for realize the power and switch, the auxiliary contact of first relay and second relay is connected respectively to the DI passageway of distributed IO module.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention provides a cold standby redundancy design method and system for a main controller of an offshore wind turbine, which can solve the problem of long-time shutdown of the offshore wind turbine caused by failure and untimely maintenance of the main controller of the offshore wind turbine, reduce the power generation loss of the offshore wind turbine and improve the actual economic benefit.
Drawings
FIG. 1 is a flow chart of a method for designing a main controller cold spare redundancy.
FIG. 2 is a block diagram of a primary controller cold standby redundancy design system.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1
Referring to fig. 1, a main controller redundancy design system is configured for each offshore wind turbine provided in this embodiment, the method includes configuring a main controller redundancy design system for each offshore wind turbine according to an operation requirement of the offshore wind turbine, where the main controller redundancy design system includes a first relay, a second relay, a small PLC, and at least two main controllers a and B configured identically, the main controller a is electrically connected to a power supply of the offshore wind turbine through the first relay, the main controller B is electrically connected to the power supply of the offshore wind turbine through the second relay, the small PLCs are respectively in communication connection with the main controllers a and B, and when the small PLC detects that the main controller a for daily operation fails and stops, the small PLC disconnects the first relay to disconnect the main controller a, and closes the second relay to start the main controller B, thereby shortening a stop time caused by a failure of the main controller a, including the following steps:
s1, according to the operation requirement of offshore wind turbine, configure main control unit redundancy design system to every offshore wind turbine, main control unit redundancy design system includes distributed IO module, small-size PLC and at least two main control unit A and the main control unit B of the same configuration, main control unit A and main control unit B all adopt the power supply of offshore wind turbine to supply power, small-size PLC is connected with main control unit A and main control unit B communication respectively, distributed IO module is connected with the small-size PLC communication, first relay and second relay all are connected with distributed IO module.
S2, after a main controller A and a main controller B of the main controller redundancy design system are sequentially electrified and configured with programs and parameter files, the main controller B is powered off, the main controller A is started, the main controller A sends power-down storage data and heartbeat signals to the small PLC, and the heartbeat signals sent to the main controller A by the SCADA system of the offshore wind farm data monitoring center are sent to the small PLC, and the method comprises the following steps:
the method comprises the steps of firstly powering on a main controller A of a main controller redundancy design system, downloading a program and a parameter file to the main controller A, then manually disconnecting a power supply of the main controller A, powering on a main controller B, downloading a program and a parameter file which are completely consistent with the main controller A to the main controller B, finally disconnecting the power supply of the main controller B, then powering on the main controller A again, starting the main controller A, connecting the main controller A with an SCADA system of an offshore wind farm data monitoring center in a communication manner, enabling a small PLC initial command to be a first relay to be closed, disconnecting a second relay, meanwhile, collecting auxiliary contacts of the first relay and the second relay through a distributed IO module to judge that the main controller in a power supply state is the main controller A, and sending power-down storage data and a heartbeat signal of the main controller A and sending a heartbeat signal to the small PLC by the SCADA system.
S3, detecting the working state of the main controller A in real time by the small PLC; if the small PLC detects that the main controller A is in a normal working state, the small PLC continues to detect the working state of the main controller A; if the small PLC detects that the state of the heartbeat signal sent by the main controller A is abnormal, executing a step S4, comprising the following steps:
the small PLC detects whether the heartbeat signal sent by the main controller A is disconnected in real time: if the small PLC can continuously receive the normal heartbeat signal sent by the main controller A, the small PLC represents that the main controller A works normally, and the small PLC continuously keeps detecting the working state of the main controller A; and if the small PLC detects that the heartbeat signal sent by the main controller A is disconnected, executing the step S4.
S4, the small PLC judges whether the time of the abnormal state of the heartbeat signal sent by the main controller A reaches the preset delay time or not; if the time of the abnormal state of the heartbeat signal sent by the main controller A is less than the preset delay time, returning to the step S3; if the time of the abnormal state of the heartbeat signal sent by the main controller A reaches the preset delay time, the main controller A is stopped, and the step S5 is executed, and the method comprises the following steps:
if the small PLC detects that the heartbeat signal sent by the main controller A is disconnected, judging whether the disconnection time of the heartbeat signal reaches preset delay time; if the disconnection time of the heartbeat signal does not reach the preset delay time, the small PLC returns to continuously detect whether the heartbeat signal sent by the main controller A is disconnected; and if the off time of the heartbeat signal reaches the preset delay time, indicating that the main controller A is in a shutdown state, and executing the step S5.
S5, the small PLC opens the first relay to power off the main controller A, closes the second relay to start the main controller B, and the method comprises the following steps:
and the small PLC opens the first relay to power off the main controller A, closes the second relay to start the main controller B, and the main controller B is in communication connection with the SCADA system of the offshore wind farm data monitoring center.
S6, the small PLC sends the power-down saving data received from the main controller A to the main controller B, and finally the main controller B works in place of the main controller A, and the method comprises the following steps:
the small PLC sends the power-down saving data received from the main controller A to the main controller B, the main controller B replaces the main controller A to work, the small PLC collects the auxiliary contacts of the first relay and the second relay through the distributed IO modules to judge that the main controller in the power supply state is the main controller B, and meanwhile the main controller B sends the power-down saving data and the heartbeat signal of the main controller B to the small PLC.
Example 2
Referring to fig. 2, the present embodiment discloses a main controller cold spare redundancy design system of an offshore wind turbine, including: the system comprises a first relay, a second relay, a distributed IO module, a small PLC, and at least two main controllers A and B which are configured identically; main control unit A is connected through the power supply electricity of first relay with offshore wind turbine generator system, main control unit B is connected through the power supply electricity of second relay with offshore wind turbine generator system, small-size PLC passes through the switch and is connected with main control unit A and main control unit B communication, just small-size PLC is connected with distributed IO module communication, first relay and second relay are connected respectively to the DO passageway of distributed IO module for realize the power and switch, the auxiliary contact of first relay and second relay is connected respectively to the DI passageway of distributed IO module.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the changes in the shape and principle of the present invention should be covered within the protection scope of the present invention.

Claims (9)

1. A main controller cold standby redundancy design method of an offshore wind turbine is characterized by comprising the following steps: according to the method, a main controller redundancy design system is configured for each offshore wind turbine generator system according to the operation requirements of the offshore wind turbine generator systems, the main controller redundancy design system comprises a first relay, a second relay, a small PLC, at least two main controllers A and a main controller B which are configured identically, the main controller A is electrically connected with a power supply of the offshore wind turbine generator system through the first relay, the main controller B is electrically connected with the power supply of the offshore wind turbine generator system through the second relay, the small PLC is in communication connection with the main controller A and the main controller B respectively, when the small PLC detects that the main controller A for daily operation stops due to faults, the small PLC disconnects the first relay, enables the main controller A to be powered off, closes the second relay, enables the main controller B to be started, and shortens the stop time caused by the faults of the main controller A.
2. The method for designing the cold standby redundancy of the main controller of the offshore wind turbine generator system according to claim 1, characterized by comprising the following steps:
s1, configuring a main controller redundancy design system for each offshore wind turbine according to the operation requirements of the offshore wind turbine;
s2, sequentially powering on a main controller A and a main controller B of a main controller redundancy design system, configuring a program and a parameter file, powering off the main controller B, starting the main controller A, sending power-down storage data and a heartbeat signal of the main controller A to the small PLC, and sending a heartbeat signal sent to the main controller A by an SCADA (supervisory control and data acquisition) system of an offshore wind farm data monitoring center to the small PLC;
s3, detecting the working state of the main controller A in real time by the small PLC; if the small PLC detects that the main controller A is in a normal working state, the small PLC continues to detect the working state of the main controller A; if the small PLC detects that the heartbeat signal sent by the main controller A is abnormal in state, executing a step S4;
s4, the small PLC judges whether the time of the abnormal state of the heartbeat signal sent by the main controller A reaches the preset delay time or not; if the time of the abnormal state of the heartbeat signal sent by the main controller A is less than the preset delay time, returning to the step S3; if the time of the abnormal state of the heartbeat signal sent by the main controller A reaches the preset delay time, the main controller A is stopped, and the step S5 is executed;
s5, the small PLC opens the first relay to power off the main controller A, closes the second relay to start the main controller B;
and S6, the small PLC sends the power-down saving data received from the main controller A to the main controller B, and finally the main controller B replaces the main controller A to work.
3. The method for designing the cold spare redundancy of the main controller of the offshore wind turbine generator system according to claim 2, wherein the step S1 comprises the following steps:
according to the operation requirement of offshore wind turbine, configure main control unit redundant design system to every offshore wind turbine, main control unit redundant design system includes main control unit A and the main control unit B of distributing type IO module, small-size PLC and two at least looks co-configurations, main control unit A and main control unit B all adopt offshore wind turbine's power supply to supply power, small-size PLC is connected with main control unit A and main control unit B communication respectively, the distributing type IO module is connected with the small-size PLC communication, first relay and second relay all are connected with the distributing type IO module.
4. The method for designing the cold spare redundancy of the main controller of the offshore wind turbine generator system according to claim 2, wherein the step S2 comprises the following steps:
the method comprises the steps of firstly powering on a main controller A of a main controller redundancy design system, downloading a program and a parameter file to the main controller A, then manually disconnecting a power supply of the main controller A, powering on a main controller B, downloading the program and the parameter file which are completely consistent with the main controller A to the main controller B, finally disconnecting the power supply of the main controller B, powering on the main controller A again, starting the main controller A, connecting the main controller A with an SCADA system of an offshore wind power field data monitoring center in a communication mode, closing a first relay according to an initial instruction of a small PLC, disconnecting a second relay, and judging that the main controller in a power supply state is the main controller A by acquiring auxiliary contacts of the first relay and the second relay through a distributed IO module through the small PLC, and sending power-down storage data and a heartbeat signal of the main controller A and sending the heartbeat signal sent to the small PLC by the SCADA system.
5. The method for designing the cold spare redundancy of the main controller of the offshore wind turbine generator system according to claim 2, wherein the step S3 comprises the following steps:
the small PLC detects whether the heartbeat signal sent by the main controller A is disconnected in real time: if the small PLC can continuously receive the normal heartbeat signal sent by the main controller A, the small PLC represents that the main controller A works normally, and the small PLC continuously keeps detecting the working state of the main controller A; and if the small PLC detects that the heartbeat signal sent by the main controller A is disconnected, executing the step S4.
6. The method for designing the cold spare redundancy of the main controller of the offshore wind turbine generator system according to claim 2, wherein the step S4 comprises the following steps:
if the small PLC detects that the heartbeat signal sent by the main controller A is disconnected, judging whether the disconnection time of the heartbeat signal reaches preset delay time; if the disconnection time of the heartbeat signal does not reach the preset delay time, the small PLC returns to continuously detect whether the heartbeat signal sent by the main controller A is disconnected; and if the off time of the heartbeat signal reaches the preset delay time, the main controller A is in a shutdown state, and the step S5 is executed.
7. The method for designing the cold spare redundancy of the main controller of the offshore wind turbine generator system according to claim 2, wherein the step S5 comprises the following steps:
and the small PLC disconnects the first relay to power off the main controller A, closes the second relay to start the main controller B, and the main controller B is in communication connection with the SCADA system of the offshore wind farm data monitoring center.
8. The method for designing the main controller cold spare redundancy of the offshore wind turbine according to claim 2, wherein the step S6 comprises the following steps:
the small PLC sends the power-down saving data received from the main controller A to the main controller B, the main controller B replaces the main controller A to work, the small PLC collects the auxiliary contacts of the first relay and the second relay through the distributed IO modules to judge that the main controller in the power supply state is the main controller B, and meanwhile the main controller B sends the power-down saving data and the heartbeat signal of the main controller B to the small PLC.
9. A main controller cold standby redundancy design system of an offshore wind turbine, which is used for realizing the main controller cold standby redundancy design method of the offshore wind turbine as claimed in any one of claims 1 to 8, and comprises the following steps: the system comprises a first relay, a second relay, a distributed IO module, a small PLC, and at least two main controllers A and B which are configured in the same way; main control unit A is connected through the power supply electricity of first relay with offshore wind turbine generator system, main control unit B is connected through the power supply electricity of second relay with offshore wind turbine generator system, small-size PLC passes through the switch and is connected with main control unit A and main control unit B communication, just small-size PLC is connected with distributed IO module communication, first relay and second relay are connected respectively to the DO passageway of distributed IO module for realize the power and switch, the auxiliary contact of first relay and second relay is connected respectively to the DI passageway of distributed IO module.
CN202211040168.6A 2022-08-29 2022-08-29 Main controller cold standby redundancy design method and system for offshore wind turbine generator system Pending CN115539297A (en)

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