Integrated wind power main control pitch change system

Abstract

The invention is suitable for the field of electric control of wind turbine generator systems, and in particular, relates to an integrated wind power main control pitch change system. The system comprises an integrated main control pitch change control cabinet, three pitch change driving cabinets, three standby power supply cabinets and three pitch change motors; the integrated main control pitchchange control cabinet is connected with all the pitch change driving cabinets through slide rings; all the pitch change driving cabinets are connected with the standby power supply cabinets and the pitch change motors; compared with the prior art, the pitch change driving cabinets save traditional pitch change controllers, and traditional pitch change control cabinets are merged with the standbypower supply cabinets as a cabinet body, so that the weights and the sizes of the pitch change driving cabinets are further reduced; and a controller of a main control system and a controller of a pitch change system are integrated in one controller to effectively reduce the unit shafting load.

Description

technical field [0001] The invention is applicable to the field of electric control of wind power generating sets, and in particular is an integrated wind power main control pitch control system. Background technique [0002] The electronic control system of the wind turbine is mainly composed of the main control system, the pitch control system and the converter system. Among them, the main control system is the main body of the entire wind turbine electrical control system. It mainly completes the data collection, judgment and processing of the engine room, detects whether there is a fault in each part of the sensor, and monitors the power grid, wind conditions, and wind turbine operating parameters through various sensors. Maintain data communication with the frequency converter control system and pitch control system, and issue various control commands after comprehensive analysis according to various aspects of the situation to realize the start and stop of the system, ...

AI Technical Summary

Problems solved by technology

[0004] The main related patents are the following patents: the patent number is CN201611210392.X, and the invention patent titled "A Low-Voltage Pitch System Containing a Pitch Servo Drive with Integrated PLC Function" integrates the PLC function of the pitch controller into the variable Inside the propeller drive, a certain amount of pitch cabinet space is saved, but the integration of the main control system and the pitch system is not solved. When the pitch system is maintained, the three pitch cabinets still need to be maintained one by one.

The patent number is CN201620611357.8, and the utility model patent titled "An Integrated Wind Power Control System" proposes to integrate the entire electronic control system (including the main control system and the pitch system) into an integrated controller, but must rely on Only real-time industrial Ethernet can exchange information with the pitch actuator, and there is no explanation about the responsibility of signal acquisition within the pitch system

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