液压型风力发电机组最佳功率追踪控制研究  

Study of the Optimum Power Tracking and Control of a Hydraulic Type Wind Power Generation Unit

作　　者：艾超[1] 闫桂山 孔祥东[3] 廖利辉[2] 

机构地区：[1]燕山大学河北省重型机械流体动力传输与控制实验室,河北秦皇岛066004 [2]燕山大学机械工程学院,河北秦皇岛066004 [3]先进锻压成形技术与科学教育部重点实验室,河北秦皇岛066004

出　　处：《热能动力工程》2015年第1期138-144,171,共7页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金资助项目(51375422);国家自然科学基金基金资助项目(51405423);河北省青年基金(QN20132017);燕山大学青年教师自主研究计划课题(13LGB005)

摘　　要：针对液压型风力发电机组能量转化效率问题,以最佳机组输出功率为控制目标,提出了两种最佳功率追踪方法。以30 k VA液压型风力发电机组实验平台为基础,研究所提出控制方法的可行性与控制特点。仿真和实验结果表明:直接压力控制的最佳功率追踪控制方法简单易行,但其准确性易受系统效率影响;考虑系统效率时,系统压力和风力机转速联合控制的最佳功率追踪控制方法具有更精确的追踪效果。In the light of the problem relating to the energy conversion efficiency of a hydraulic type wind power generator unit,with the optimum output power of the unit serving as the control target,proposed were two methods for tracking the optimum power. With a 30 k VA hydraulic type wind power generator unit test platform serving as a basis,the authors studied the feasibility and control features of the control methods thus proposed. The simulation and test results show that the optimum power tracking and control method directly controlled by pressure is simple and easy,however,its accuracy is susceptible to the efficiency of the system. When the efficiency of the system is taken into account,the optimum power tracking and control method jointly controlled by the system pressure and the rotatingspeed of the wind turbine enjoys a more precise tracking result.

关 键 词：风力发电 液压传动 最佳功率追踪 压力控制 风力机转速 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程] TH137[机械工程—机械制造及自动化]