Megawatt wind power generation master control system

Abstract

The invention discloses a megawatt wind power generation master control system, which comprises a master control unit, an upper monitoring system, a pitch control system and a variable frequency system, wherein the master control unit consists of a tower-bottom control cabinet and a cabin control cabinet; the tower-bottom control cabinet is provided with a master control central processing unit (CPU) module, a remote input output (IO) extended optical fiber master module, a CANOpen communication master module, an RS232 expansion module, a tower-bottom universal IO module, a first multimode optical fiber port four-electrical port industrial switch, a single-mode photoelectric converter, a first pigtail box, an in-situ upper computer and multimode optical fibers; and the master control unit is connected with the upper monitoring system through the single-mode photoelectric converter, connected with the variable frequency system through the CANOpen communication master module and connected with the pitch control system through an RS485 module. In the megawatt wind power generation master control system, the characteristics of a wind machine are taken as bases, and when the wind machine runs at an optimal tip-speed ratio lambda, a fan unit captures maximum energy to maintain the stable output power of a generator.

Description

technical field [0001] The invention relates to a control technology of a main control system of wind power generation, in particular to a main control system of megawatt-level wind power generation. Background technique [0002] In recent years, thanks to domestic policy guidance and international clean energy development needs, my country's wind power installed capacity has grown rapidly at an average annual rate of 100%. By the end of 2009, China ranked second in the world with an installed capacity of 26.1 million kilowatts. The United States has The cumulative installed capacity of 35.16 million kilowatts ranked first. [0003] The rapid growth of demand has also led to the rapid development of my country's wind power equipment manufacturing industry. As of the end of April 2009, there were nearly 80 domestic wind turbine manufacturers. In order to quickly seize the market, major fan manufacturers are committed to expanding production scale, unable to independently dev...

AI Technical Summary

Problems solved by technology

[0005] The wind turbine control system is a system that is highly integrated with the characteristics of the wind turbine. The control software including the main control, pitch and frequency converter is not only complicated in algorithm, but also the setting of its parameters is closely related to the wind turbine itself. The task of the wind turbine control system is not only It is not only to realize highly automated monitoring of wind turbines and power supply to the grid, but also to maximize wind energy capture and minimize loads through appropriate control. Even if ordinary automation companies can develop prototypes, it is difficult to verify and promote them. more difficult

Images