Simulation test system

Abstract

The present application relates to a kind of simulation test systems, to carry out test to the whole machine control system of wind turbine in experimental stage, improve the convenience of test.Simulation test system, for testing the whole machine control system of wind turbine, system includes: controller, with the communication connection of analog variable pitch system in variable pitch substation in whole machine control system, with the communication connection of analog current conversion system in current converter substation in whole machine control system, and with the communication connection of communication substation in cabin substation and tower bottom substation in whole machine control system;Wherein, controller, with analog variable pitch system, analog current conversion system and communication substation communication connection, for receiving the feedback information from whole machine control system according to analog variable pitch system, receiving the feedback information from whole machine control system according to analog current conversion system, and / or receiving the feedback information from whole machine control system according to communication substation, test whole machine control system.

Description

Technical Field

[0001] This invention relates to the field of simulation testing technology, and in particular to a simulation testing system for testing the overall control system of a wind turbine generator set. Background Technology

[0002] As wind power technology matures, the performance requirements for wind turbine control systems are also increasing. Therefore, wind turbines need to be tested before they are officially installed and put into use.

[0003] Currently, when testing the performance of wind turbine generator sets, the testing of the overall control system can only be conducted at the installation site after the wind turbine generator set has been assembled. While this testing method can verify the performance of the overall control system, it is too delayed and inconvenient.

[0004] In summary, the existing method of testing wind turbine generators after assembly at the installation site is not only too late for testing the performance of the entire control system, but also inconvenient. Summary of the Invention

[0005] This invention provides a simulation testing system for testing the overall control system of a wind turbine generator set during the experimental phase, thereby improving the convenience of testing.

[0006] On one hand, according to an embodiment of the present invention, a simulation testing system is provided for testing the overall control system of a wind turbine generator set. The system includes: a controller, a simulated pitch system communicatively connected to a pitch substation in the overall control system, a simulated converter system communicatively connected to a converter substation in the overall control system, and a communication substation communicatively connected to a nacelle substation and a tower base substation in the overall control system. The controller is communicatively connected to the simulated pitch system, the simulated converter system, and the communication substation, and is used to receive feedback information from the overall control system through the simulated pitch system, the simulated converter system, and / or the communication substation.

[0007] According to one aspect of the present invention, a controller includes: a hardware function test sub-controller, configured to send a display signal command to the whole machine control system via a communication substation, and to receive feedback from the whole machine control system regarding the display signal command via the communication substation.

[0008] According to one aspect of the present invention, a controller includes: a logic control function test sub-controller, configured to send logic control commands to the whole machine control system via a communication substation, and to receive feedback from the whole machine control system regarding the logic control commands via the communication substation.

[0009] According to one aspect of the present invention, a controller includes: a pitch simulation sub-controller, a torque simulation sub-controller, and a closed-loop sub-controller, wherein the pitch simulation sub-controller is configured to receive blade angles sent by the overall control system and output simulated blade angles based on the blade angles and pre-received simulated wind speed signals; the torque simulation sub-controller is configured to receive torques sent by the overall control system and output simulated torques based on the torques and pre-received simulated rotational speed signals; and the closed-loop sub-controller is configured to feed back simulated operating parameters to the overall control system based on the blade angles, simulated blade angles, torques, and simulated torques, and instruct the overall control system to send corrected blade angles to the pitch simulation sub-controller and corrected torques to the torque simulation sub-controller.

[0010] According to one aspect of the present invention, the pitch simulation sub-controller communicates with the pitch substation through the simulated pitch system and receives the blade angle sent by the overall control system.

[0011] According to one aspect of the present invention, a torque simulation sub-controller communicates with a converter substation through a simulated converter system to receive torque sent by the overall control system.

[0012] According to one aspect of the present invention, the controller is connected to the analog pitch system, the analog converter system, and the communication substation via the EtherCAT communication method of Ethernet control automation technology.

[0013] According to one aspect of the present invention, the analog pitch system and the pitch substation communicate via one or more of the following communication methods: Transmission Control Protocol (TCP) / Internet Protocol (IP) communication, Controller Area Network (CAN) communication, and hardware input / output port communication.

[0014] According to one aspect of the present invention, the analog converter system and the converter substation communicate through one or more of the following communication methods: TCP / IP communication, CAN communication, and hardware input / output port communication.

[0015] According to one aspect of the present invention, the communication substation communicates with the cabin substation and the tower substation via one or more of the following communication methods: Transmission Control Protocol (TCP) / Internet Protocol (IP) communication, Controller Area Network (CAN) communication, and hardware input / output port communication.

[0016] The simulation testing system provided by the present invention includes: a controller, a simulated pitch system communicatively connected to a pitch substation in the overall control system, a simulated converter system communicatively connected to a converter substation in the overall control system, and a communication substation communicatively connected to a nacelle substation and a tower base substation in the overall control system. The controller, communicatively connected to the simulated pitch system, the simulated converter system, and the communication substation, is used to receive feedback information from the overall control system through the simulated pitch system, the simulated converter system, and / or the communication substation, and to test the overall control system based on the received feedback information. Compared with the prior art, which requires on-site testing after the wind turbine generator set is assembled, the present invention can test the overall control system of the wind turbine generator set during the experimental development stage, improving the convenience of testing. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the simulation testing system provided in an embodiment of the present invention is shown;

[0019] Figure 2 A schematic flowchart of the simulation test system provided in this embodiment of the invention is shown for testing the hardware functions of the whole machine control system.

[0020] Figure 3 A schematic flowchart of the simulation test system provided in this embodiment of the invention is shown for testing the logic control function of the whole machine control system.

[0021] Figure 4 A schematic diagram of the results of a closed-loop control system composed of a simulation test system and a whole-machine control system provided by an embodiment of the present invention is shown. Detailed Implementation

[0022] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present invention by way of example, but should not be used to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.

[0023] In the description of this invention, it should be noted that, unless otherwise stated, "a plurality of" means two or more; terms indicating orientation or positional relationship are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention. Furthermore, terms such as "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] To better understand this invention, the following is combined with... Figures 1 to 4 The simulation testing system according to an embodiment of the present invention will be described in detail.

[0025] The simulation testing system provided in this invention can test the overall control system of a wind turbine generator during the experimental development phase, improving testing convenience. The following embodiments of this invention only illustrate the simulation testing system using the testing of the overall control system of a wind turbine generator as an example. However, the application of the simulation testing system of this invention is not limited to the following embodiments; it can also be installed on equipment in other fields that require testing and protection of the overall control system of a wind turbine generator.

[0026] like Figure 1 As shown, the simulation test system 110 of this embodiment of the invention is used to test the overall control system 100 of a wind turbine generator set. The simulation test system 110 includes: a controller 111, a simulated pitch system 112 communicatively connected to the pitch substation 101 in the overall control system 100, a simulated converter system 113 communicatively connected to the converter substation 102 in the overall control system 100, and a communication substation 114 communicatively connected to the nacelle substation 103 and the tower base substation 104 in the overall control system 100. The controller 111 is communicatively connected to the simulated pitch system 112, the simulated converter system 113 and the communication substation 114, and is used to receive feedback information from the overall control system 100 through the simulated pitch system 112, the simulated converter system 113 and / or the communication substation 114.

[0027] In the simulation test system 110 provided in this embodiment of the invention, the controller 111 communicates with the simulated pitch system 112, the simulated converter system 113 and the communication substation 114 via EtherCAT communication.

[0028] Of course, in the wind turbine generator set control system 100, the main controller of the control system 100 is also connected to the pitch substation 101, converter substation 102, nacelle substation 103 and tower base substation 104 via EtherCAT communication.

[0029] The whole machine control system 100 and the simulation test system 110 can communicate through one or more of the following communication methods: TCP / IP communication, CAN communication, and hardware input / output port communication.

[0030] Specifically, the pitch substation 101 in the overall control system 100 and the simulated pitch system 112 in the simulation test system 110 can communicate through one or more of the following communication methods: TCP / IP communication, CAN communication, and hardware input / output port communication; the converter substation 102 in the overall control system 100 and the simulated converter system 113 in the simulation test system 110 can communicate through one or more of the following communication methods: TCP / IP communication, CAN communication, and hardware input / output port communication; the nacelle substation 103 and tower base substation 104 in the overall control system 100 and the communication substation 114 in the simulation test system 110 can communicate through one or more of the following communication methods: TCP / IP communication, CAN communication, and hardware input / output port communication.

[0031] The simulation testing system 110 provided in this embodiment of the invention can test the hardware functions of the wind turbine generator set control system 100, the logic control functions of the wind turbine generator set control system 100, and the control strategy functions of the wind turbine generator set control system 100.

[0032] The following is combined Figures 2-4 The above test procedures will be explained in detail.

[0033] The simulation testing system 110 provided in this embodiment of the invention includes a hardware function testing sub-controller 111, which is used to test the hardware functions of the wind turbine generator set's overall control system 100. Specifically, the testing can be performed as follows: Figure 2 The steps shown are for testing, specifically including:

[0034] Step 201: The hardware function test sub-controller burns the software program for controlling the wind turbine generator set into the whole machine control system 100.

[0035] Step 202: Configure the parameters used by the hardware function test sub-controller to test the hardware function of the whole machine control system 100.

[0036] Step 203: The hardware function test sub-controller sends a display signal command to the overall control system 100 via the communication substation 114. The communication substation 114 sends the display signal command to the overall control system 100.

[0037] In step 204, the overall control system 100 receives the display signal command, displays the signal according to the instruction of the display signal command, and outputs feedback on the display signal command. Specifically, the overall control system 100 sends its feedback on the display signal command to the hardware function test sub-controller in the simulation test system 110 through the communication substation 114.

[0038] Step 205: The hardware function test sub-controller determines whether the hardware functions of one or more components in the whole machine control system 100 are normal based on the feedback of the whole machine control system 100 to the display signal command.

[0039] If the hardware function test sub-controller determines that the hardware function of one or more components in the whole machine control system 100 is normal based on the feedback of the whole machine control system 100 to the display signal command, then it continues to execute step 203 to test the hardware function of one or more other components; if the hardware function test sub-controller determines that the hardware function of one or more components in the whole machine control system 100 is abnormal based on the feedback of the whole machine control system 100 to the display signal command, then it executes step 206.

[0040] Step 206: When the hardware function test sub-controller determines that one or more components in the whole machine control system 100 have abnormal hardware functions based on the feedback of the whole machine control system 100 to the display signal command, it prints an error information report to show the error results to the tester.

[0041] Of course, in other embodiments of the present invention, when the hardware function test sub-controller determines that the hardware function of one or more components in the whole machine control system 100 is abnormal based on the feedback of the whole machine control system 100 to the display signal command, after printing the error information report, it can also continue to execute step 203 to test the hardware function of one or more other components. The present invention does not limit this.

[0042] The simulation testing system 110 provided in this embodiment of the invention includes a logic control function testing sub-controller 111, which is used to test the logic control function of the wind turbine generator's overall control system 100. Specifically, the test can be conducted as follows... Figure 3 The steps shown are for testing, specifically including:

[0043] Step 301: The logic control function test sub-controller burns the software program for controlling the wind turbine generator set into the whole machine control system 100.

[0044] Step 302: Configure the sub-controller to test the parameters used by the logic control function of the whole machine control system 100.

[0045] Step 303: The logic control function test sub-controller sends a logic control command to the overall control system 100 via the communication substation 114. The logic control command includes the given control parameters. The communication substation 114 then sends the logic control command to the overall control system 100.

[0046] In step 304, the overall control system 100 receives the logic control command, executes the corresponding control logic according to the control parameters given in the logic control command, and outputs feedback on the logic control command. Specifically, the overall control system 100 sends its feedback on the logic control command to the logic control function test sub-controller in the simulation test system 110 through the communication substation 114.

[0047] Step 305: The logic control function test sub-controller determines whether one or more logic control functions in the whole machine control system 100 are normal based on the feedback of the logic control instructions from the whole machine control system 100.

[0048] If the logic control function test sub-controller determines that one or more logic control functions in the whole machine control system 100 are normal based on the feedback of the logic control command from the whole machine control system 100, then proceed to step 303 to test one or more other logic control functions; if the logic control function test sub-controller determines that one or more logic control functions in the whole machine control system 100 are abnormal based on the feedback of the logic control command from the whole machine control system 100, then proceed to step 306.

[0049] Step 306: The logic control function test sub-controller, based on the feedback from the whole machine control system 100 to the logic control commands, determines that one or more logic control functions in the whole machine control system 100 are abnormal, and prints an error message report to show the error results to the testers.

[0050] Of course, in other embodiments of the present invention, after the logic control function test sub-controller determines that one or more logic control functions in the whole machine control system 100 are abnormal based on the feedback of the logic control instructions from the whole machine control system 100 and prints an error information report, it can also continue to execute step 303 to test one or more other logic control functions. The present invention does not limit this.

[0051] The simulation test system 110 provided in this embodiment of the invention includes a controller 111 comprising a pitch simulation sub-controller, a torque simulation sub-controller, and a closed-loop sub-controller. The pitch simulation sub-controller, the torque simulation sub-controller, and the closed-loop sub-controller together with the whole machine control system 100 form a closed-loop control system to test the control strategy function of the whole machine control system 100.

[0052] In specific implementation, such as Figure 4 As shown, the controller 111 in the simulation test system 110 includes a pitch simulation sub-controller 401, a torque simulation sub-controller 402, and a closed-loop sub-controller 403, which together with the whole machine control system 100 form a closed-loop control system.

[0053] Specifically Figure 4 In the closed-loop control system shown, the process of testing the control strategy function of the whole machine control system 100 is as follows:

[0054] The closed-loop sub-controller 403 sends operating parameters to the whole machine control system 100. The operating parameters may include, but are not limited to, speed, torque, blade position angle and operating power.

[0055] The overall control system 100 calculates the required blade angle and torque of the wind turbine generator set based on the operating parameters sent by the closed-loop sub-controller 403 and its internal control strategy. It then communicates with the simulated pitch system 112 in the simulation test system 110 through the pitch substation 101 to send the calculated blade angle to the pitch simulation sub-controller 401. The system also communicates with the simulated converter system 113 in the simulation test system 110 through the converter substation 102 to send the calculated torque to the torque simulation sub-controller 402.

[0056] The pitch simulation sub-controller 401 receives the blade angle sent by the whole machine control system 100, and outputs the simulated blade angle to the closed-loop sub-controller 403 based on the received blade angle and the pre-received simulated wind speed signal.

[0057] The torque simulation sub-controller 402 receives the torque sent by the whole machine control system 100, and outputs the simulated torque to the closed-loop sub-controller 403 based on the received torque and the pre-received simulated speed signal.

[0058] The closed-loop sub-controller 403 feeds back the simulation operation results to the whole machine control system 100 based on the sent operating parameters, the simulated blade angle output by the pitch simulation sub-controller 401, and the simulated torque output by the torque simulation sub-controller 402. The feedback operation results may include, but are not limited to, the speed, torque, blade position angle and operating power during the simulation operation.

[0059] The whole machine control system 100 receives the simulation operation results fed back by the closed-loop sub-controller 403, and based on the received simulation operation results and the calculated required blade angle and torque, calculates the corrected blade angle and corrected torque through its internal control strategy, and communicates with the simulated pitch system 112 in the simulation test system 110 through the pitch substation 101 to send the corrected blade angle to the pitch simulation sub-controller 401; and communicates with the simulated converter system 113 in the simulation test system 110 through the converter substation 102 to send the corrected torque to the torque simulation sub-controller 402 to continue simulating the operation of the wind turbine generator set.

[0060] In this embodiment of the invention, the operation of a wind turbine generator set is simulated using a closed-loop control system to test the control strategy function of the overall control system 100.

[0061] It should be noted that by simulating the operation of the wind turbine generator set multiple times through the closed-loop control system, the control strategy function of the whole machine control system 100 can be tested more accurately. Of course, in other embodiments of the present invention, the control strategy function of the whole machine control system 100 is also tested through a single simulation of the closed-loop control system.

[0062] The above description uses the testing of the wind turbine generator set's overall control system as an example to illustrate the simulation testing system provided in this embodiment of the invention. As can be seen from the above embodiments of the invention, the simulation testing system provided in this embodiment of the invention allows the controller to receive feedback information from the overall control system through a simulated pitch system, a simulated converter system, and / or a communication substation, and to test the overall control system based on the received feedback information. This enables the testing of the wind turbine generator set's overall control system during the experimental development stage of the wind turbine generator set, improving the convenience of testing.

[0063] Although the invention has been described with reference to preferred embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A simulation test system for testing an overall control system of a wind turbine generator system, characterized by, The system comprises a controller, an analog variable pitch system in communication with a variable pitch substation in the whole machine control system, an analog variable flow system in communication with a variable flow substation in the whole machine control system, and a communication substation in communication with a cabin substation and a tower bottom substation in the whole machine control system, wherein The controller is in communication with the analog variable pitch system, the analog variable flow system, and the communication substation, and is configured to receive feedback information from the whole machine control system through the analog variable pitch system, the analog variable flow system, and the communication substation. The controller comprises a variable pitch simulation sub-controller, a torque simulation sub-controller, and a closed loop sub-controller, wherein The closed loop sub-controller sends operating parameters to the whole machine control system, the operating parameters comprising rotational speed, torque, blade position angle, and operating power. The variable pitch simulation sub-controller is configured to receive a blade angle calculated by the whole machine control system based on the operating parameters, and output a simulation blade angle based on the blade angle and a pre-received analog wind speed signal. The torque simulation sub-controller is configured to receive a torque calculated by the whole machine control system based on the operating parameters, and output a simulation torque based on the torque and a pre-received analog rotational speed signal. The closed loop sub-controller is configured to feed back simulation operating results to the whole machine control system based on the sent operating parameters, the simulation blade angle, and the simulation torque, and instruct the whole machine control system to send a corrected blade angle to the variable pitch simulation sub-controller based on the simulation operating results, and send a corrected torque to the torque simulation sub-controller based on the simulation operating results, so as to iteratively simulate the operating condition of the wind turbine generator, and perform closed loop testing on the control strategy function of the whole machine control system. The analog wind speed signal and the analog rotational speed signal are independent of the simulation test system and the whole machine control system.

2. The system of claim 1, wherein, The controller comprises a hardware function test sub-controller configured to send a display signal instruction to the whole machine control system through the communication substation, and receive feedback from the whole machine control system in response to the display signal instruction through the communication substation.

3. The system of claim 1, wherein, The controller comprises a logic control function test sub-controller configured to send a logic control instruction to the whole machine control system through the communication substation, and receive feedback from the whole machine control system in response to the logic control instruction through the communication substation.

4. The system of claim 1, wherein, The variable pitch simulation sub-controller is in communication with the variable pitch substation through the analog variable pitch system, and receives the blade angle sent by the whole machine control system.

5. The system of claim 1, wherein, The torque simulation sub-controller is in communication with the variable flow substation through the analog variable flow system, and receives the torque sent by the whole machine control system.

6. The system of any one of claims 1-5, wherein, The controller is in communication with the analog variable pitch system, the analog variable flow system, and the communication substation through an EtherCAT communication mode.

7. The system of any one of claims 1-5, wherein, The analog pitch system communicates with the pitch substation through one or more of the following communication modes: transmission control protocol (TCP) / Internet protocol (IP) communication mode, controller area network (CAN) communication, and hardware input / output port communication.

8. The system of any one of claims 1-5, wherein, The analog current system communicates with the current substation through one or more of the following communication modes: transmission control protocol (TCP) / Internet protocol (IP) communication mode, controller area network (CAN) communication, and hardware input / output port communication.

9. The system of any one of claims 1-5, wherein, The communication substation communicates with the cabin substation and the tower bottom substation through one or more of the following communication modes: transmission control protocol (TCP) / Internet protocol (IP) communication mode, controller area network (CAN) communication, and hardware input / output port communication.

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