| 引用本文: | 赵 亮,韩华玲,陈 宁,朱凌志.基于模糊滑模控制的风电机组最大风能追踪策略[J].电力自动化设备,2012,32(12): |
| ZHAO Liang,HAN Hualing,CHEN Ning,ZHU Lingzhi.Maximum wind energy tracking based on fuzzy sliding mode control for wind power generation system[J].Electric Power Automation Equipment,2012,32(12): |
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| 摘要: |
| 针对风电机组最大风能追踪问题，采用一种模糊滑模控制策略。该方法首先以发电机转速和电磁转矩作为状态变量建立滑模切换面，获得等效控制律和切换控制律。其次，根据滑模切换面状态，采用模糊规则推理方法柔化切换控制作用，削弱滑模控制抖振，得到模糊滑模控制律。在此基础上，根据风力机的最优运行区域，对1.5 MW风电机组的最大风能追踪控制进行研究，仿真结果表明，该方法能够很好地控制风力机转速准确跟随风速变化，保持最佳叶尖速比和最大功率系数，使风力机输出功率保持在最优运行区域，在实现最大风能捕获的同时，降低机组机械载荷。 |
| 关键词: 风电 最大风能追踪 滑模控制 模糊控制 模型 |
| DOI： |
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| 基金项目:国家高技术研究发展计划（863计划）（2011AA05A104）；国家电网公司重大科技项目 |
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| Maximum wind energy tracking based on fuzzy sliding mode control for wind power generation system |
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ZHAO Liang, HAN Hualing, CHEN Ning, ZHU Lingzhi
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China Electric Power Research Institute，Nanjing 210003，China
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| Abstract: |
| A strategy of fuzzy sliding mode control is developed for the maximum wind energy tracking，which establishes the sliding mode switch surface based on the state variables of the rotational speed and electromagnetic torque of generator to obtain the equivalent control law and switching control law. The rule inference method is applied based on the state of sliding mode surface to achieve the fuzzy sliding mode control law，which softens the switching control and weakens the sliding mode control chattering. The maximum wind energy tracking of 1.5 MW wind power generator unit is studied according to its optimal operating region and simulative results show that，the introduced control strategy adjusts the rotational speed of wind turbine to accurately follow the wind speed，keeps the output power of wind turbine in the optimal operating region and maintains the optimal tip-speed ratio and maximum power coefficient，which reduces the mechanical load of unit while captures the maximum wind energy. |
| Key words: wind power maximum wind power tracking sliding mode control fuzzy control models |
