【摘要】 本文详细分析了变桨距系统的设计原理和组成,并在此基础上以非线性PID算法为控制核心,以Profibus总线和CAN总线作为通信,以超级电容作为后备电源,设计了兆瓦级风电机组变桨距系统,对变桨系统软件开发所涉及的运行模式划分为五类,并将研究结果应用于国内某风场,结果表明该系统满足风电机组对变桨系统位置和精度控制的要求。更多还原

【Abstract】 Design principle and constitution of pitch system are analyzed in detail in this paper.MW-grade pitch system is designed based on kernel control algorithm of non liner PID algorithm, bus communication of Profibus bus and CAN bus, backup power of super capacitor. System operation model is divided into 5 modular for system software development. Research achievement is supplied on some wind field in our country. It is testified that pitch system position and speed precision demand complied with the requirements of wind turbine.更多还原