学术
摘 要:
充分利用风能是风力发电控制的主要目的之一,为达此目的,基于原有的直驱式风力发电系统电路拓扑结构,在整流器和逆变器之间加入了Buck-Boost电路,通过控制该电路中开关器件的开断,保证该风力发电系统输出有效电压,从而保证有功功率流向电网或负载,实现风力发电系统的最佳功率系数。基于风力发电机输出功率特性曲线,详细阐述了采用该风力发电系统实现最大风能利用的搜索算法。该算法具有不再需要测风速和电机转速的优点。通过实验验证比较,新系统能实现风能的最大利用。[著者文摘]
关 键 词:
文章出处:
《电力电子技术》-2007年41卷7期,5 -1-2,5页
栏目信息:
文献标识码:
A
文章编号:
1000-100X（2007）07-0001-02
Study on Maximum Power Extraction Control for directly drived Wind Power Generating System
LING Yu, ZHANG Tong-zhuang, QIU Xue-feng （China University of Mining and Technology, Xuzhou 221008, China）
Abstract:
Making full usage of wind enegy is one of the main control objects in the control of wind power generation. Based on original wind power generating system, the Buck-Boost converter was arranged between the AC/DC converter and inverter.By increasing or decreasing the duty cycle of the Buck-Boost converter,the Root-Mean-Square （RMS） of output voltage was outputed,so that the active power was guaranteed senting to a utility grid.Based on the power curve,the Maximum Power Point Tracking （MPPT） searching algorithm was elaborated without speed sensors.The tests prove that the proposed system can extract maximum wind energy.[著者文摘]
Key words:
converter; wind power generator; synchro generator/maximum wind energy searching algorithm
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