长春师范大学学报(自然科学版)
長春師範大學學報(自然科學版)
장춘사범대학학보(자연과학판)
Journal of Changchun Normal University (Natural Science)
2015年
1期
33-39
,共7页
陈丽颖%刘彦辉%张煜丽
陳麗穎%劉彥輝%張煜麗
진려영%류언휘%장욱려
最大功率跟踪控制(MPPT控制)%小型风力发电机%螺旋桨式%自动控制叶片
最大功率跟蹤控製(MPPT控製)%小型風力髮電機%螺鏇槳式%自動控製葉片
최대공솔근종공제(MPPT공제)%소형풍력발전궤%라선장식%자동공제협편
MPPT control%compact wind power generator%propeller-type compact wind power generator%passive self -pitch-con-trolled blades
本文以一种带有自动控制叶片式结构的风力发电机为研究对象,根据采样时间不同输出电压偏差不等的特征,提出最大功率跟踪控制方法,即MPPT控制方法。风力发电机输出电压有两种特征模式:一、输出电压几乎不变;二、输出电压增长很快。首先辨别模式,进入模式二后应用MPPT控制方法可以很快地捕获到最大功率点相对应的电压和电流,从而实现最大功率点的跟踪,然后通过实验和模拟证实MPPT控制方法的正确性。
本文以一種帶有自動控製葉片式結構的風力髮電機為研究對象,根據採樣時間不同輸齣電壓偏差不等的特徵,提齣最大功率跟蹤控製方法,即MPPT控製方法。風力髮電機輸齣電壓有兩種特徵模式:一、輸齣電壓幾乎不變;二、輸齣電壓增長很快。首先辨彆模式,進入模式二後應用MPPT控製方法可以很快地捕穫到最大功率點相對應的電壓和電流,從而實現最大功率點的跟蹤,然後通過實驗和模擬證實MPPT控製方法的正確性。
본문이일충대유자동공제협편식결구적풍력발전궤위연구대상,근거채양시간불동수출전압편차불등적특정,제출최대공솔근종공제방법,즉MPPT공제방법。풍력발전궤수출전압유량충특정모식:일、수출전압궤호불변;이、수출전압증장흔쾌。수선변별모식,진입모식이후응용MPPT공제방법가이흔쾌지포획도최대공솔점상대응적전압화전류,종이실현최대공솔점적근종,연후통과실험화모의증실MPPT공제방법적정학성。
This paper describes a maximum power point tracking ( MPPT) control method for propeller -type compact wind power gener-ators with passive self -pitch-controlled blades based on the sign of the time differential of the voltage deviation between sampling times.Transient characteristics of the voltage output from compact wind power generators have two modes because of the self -pitch-controlled blades:mode I in which the output voltage hardly increases and mode II in which it rapidly increases .By judging the mode from the change of the sign of the time differential of the voltage deviation between sampling times , the MPPT control method proposed here makes the output current converge on the maximum point using relationships between the maximum power and optimal current which give the maximum power and the wind speed .Effectiveness of the proposed MPPT control method is verified through simulations and ex-periments using a wind tunnel .