Integrated wind power generation electrical system

Abstract

The invention discloses an integrated wind power generation electrical system. The integrated wind power generation electrical system comprises a wind field central control room, a master control system, a converter, a safety chain, a slip ring and a pitch control system. The master control system comprises a tower bottom cabinet and an engine room cabinet. The tower bottom cabinet comprises a human-computer interface, a switch, a safety CPU, a master control CPU, an I / O module and a safety module. The engine room cabinet comprises a long-distance I / O. The master control CPU is connected with the I / O module. The master control CPU is connected with the converter through optical fibers. The master CPU is connected with the pitch control system by means of a site bus through the slip ring. The master CPU is connected with the safety CPU through the site bus. The safety CPU is connected with the safety module through the site bus. The safety module is connected with the safety chain. The safety chain is connected with the converter. According to the integrated wind power generation electrical system, the control system, the converter and the pitch control system are integrated and designed uniformly, so that the reliability and the real-time performance of the system are improved, and the manufacturing cost and the maintenance cost of the integrated wind power generation electrical system can be reduced.

Description

technical field [0001] The invention belongs to the field of control technology and power electronics technology, and in particular relates to an integrated wind power generation electrical system. Background technique [0002] With the development and progress of wind power generation technology, out of economical considerations, the current single-unit capacity of wind power is getting higher and higher, and the cost per kilowatt of wind turbines is decreasing day by day. With the application of wind power generation more and more widely, the reliability and system performance requirements of the electrical system of wind power generation are also getting higher and higher. The electrical system of wind power generation generally includes the main control system, the pitch system and the converter. The main control system controls all the components of the wind power electrical system to work in harmony. The main control system is divided into the tower bottom cabinet and ...

AI Technical Summary

Problems solved by technology

[0003] When the main control system and the pitch control system operate as independent components, their respective CPUs (Central Processing Units, central processing units) complete their respective tasks. The main control system and the pitch control system exchange information and coordinate operation through the communication interface. The inverters communicate with each other through the communication interface to coordinate operation, which leads to the slow response speed of the wind power electrical system. The main control system and the inverters have their own human-computer interaction interfaces and surge protectors.

As independent products, the main control system, converter and pitch system need to be repeated on peripherals such as human-computer interaction interface, surge protector and communication interface, and the running time of each independent product is relatively long and the cost is high. High, serious waste of resources, poor system reliability and real-time performance

[0004] In view of the development of current control technology and power electronics technology, as well as the deepening understanding of wind turbine operation requirements, integrating the main control system, converter and pitch system, and adopting a top-down design idea is to meet the requirements of wind power generation electrical system. Cost, the best design concept to improve system reliability and real-time responsiveness, currently there is no suitable technical solution to implement this design concept

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