直風(fēng)力機偏航控制策略及系統(tǒng)設(shè)計Yaw Control Str

采用爬山控制算法控制風(fēng)力機偏航機構(gòu)，與常規(guī)的偏航控制系統(tǒng)必須依賴風(fēng)速風(fēng)向傳
感器不同的是，該方法不需要風(fēng)速風(fēng)向傳感器裝置，只要測量風(fēng)力發(fā)電機的輸出電壓和電流，根據(jù)風(fēng)力機輸出功率的變化，不斷尋找最大功率點，由DSP 控制器發(fā)出指令調(diào)節(jié)偏航電機的起停和轉(zhuǎn)向，通過減速傳動裝置，從而快速有效的控制機艙始終處于迎風(fēng)狀態(tài)。文中給出了1.5MW 雙饋風(fēng)力機偏航控制系統(tǒng)的軟硬件設(shè)計，用PSCAD 軟件進行了仿真。采用DSP 控制器，實時性好，數(shù)據(jù)處理速度快，采用大的傳動比，使得機艙具有對風(fēng)快速、平穩(wěn)特點。
關(guān)鍵詞：爬山；風(fēng)力機；偏航控制系統(tǒng)；DSP；霍爾傳感器；PSCAD
Abstract:Applying Hill-Climbing control algorithm to a yaw setup for wind turbine,it is
independent of any anemoscope and wind direction measure device compareing to general yaw control system.Only through measuring the voltage and current of the turbine output and
according to the changes of the turbine output power , the on-off and rotating derection of the yaw motor can be adjusted by controller, accordingly the turbine cabin will be always on windward status through gearing-down.The paper presents the software and hardware design of yaw control system for 1.5MW DFIG,and simulates the theory analyse by dint of PSCAD software. It also has a good real-time and fast data processing performance with DSP controller，and because of designing larger drive ratio of gearing,cabin of the system has a faster and balanced windward characteristic.
Keywords:Hill-Climbing;Wind Turbine;Yaw Control;DSP;Hall Sensor;PSCAD