基于Bladed的电液比例变桨距风力机半物理仿真平台

Semi-physical Simulation Test-bed for Electro-hydraulic Proportional Pitch-controlled Wind Turbine System Based on Bladed

变桨距是风力机控制关键技术之一。本文通过对风力机空气动力学研究,为变桨距控制奠定了理论基础。为了对变桨距执行机构和控制规律进行研究,搭建了半物理仿真平台,其中电液比例变桨距执行机构和控制器按照1.5MW级风力机要求真实制造,而风力机其它部分采用“B laded”软件的数字模型代替,同时平台提供加载装置实时模拟作用在变桨距液压缸上的风力负载。从半物理仿真平台试验结果表明,变桨距控制满足功率稳定的要求。

Pitch - control is one of the key technology of wind turbine. The theoretical study of pitch - controlled wind turbine was made. The semi - physical simulation test - stand for electro - hydraulic proportional pitch - controlled wind turbine system was built for research of pitch - control device and control strategy. The pitch - control device and controller were designed according to 1.5 MW wind turbine, the rest of wind turbine was simulated by the mathematical model of ＂Bladed＂ . The wind moment was worked out according to the wind speed signal and was loaded on the load hydraulic cylinder of the pitch - regulated actuator system. The simulation results demonstrate that the test stand can satisfy the requirements for the pitch - control wind turbine.