CAJ | 학술논문

以Elman神经网络算法的风速预测方法作为基础，建立了单台永磁直驱同步发电机( PMSG)风电机组在强风波动条件下运行的数学模型。该模型能够较好地反映实际风电场风速的随机性和突变性。考虑到传统的出力规律与风电在强风模型下出力规律的映射关系，利用传统的出力规律与风电在强风模型下出力规律之间的偏差作为参考值，并引入对PMSG风电机组桨距角、转速的PI控制策略，基于此并考虑到电网调度对风电机组出力的要求，建立了对单台PMSG风电机组在强风波动条件下短期出力进行控制的模型。进一步利用真实短期风速算例仿真，结果表明该模型能够在瞬时风速为25~35 m/s时对风力机出力进行有效平稳的控制。
이Elman신경망락산법적풍속예측방법작위기출，건립료단태영자직구동보발전궤( PMSG)풍전궤조재강풍파동조건하운행적수학모형。해모형능구교호지반영실제풍전장풍속적수궤성화돌변성。고필도전통적출력규률여풍전재강풍모형하출력규률적영사관계，이용전통적출력규률여풍전재강풍모형하출력규률지간적편차작위삼고치，병인입대PMSG풍전궤조장거각、전속적PI공제책략，기우차병고필도전망조도대풍전궤조출력적요구，건립료대단태PMSG풍전궤조재강풍파동조건하단기출력진행공제적모형。진일보이용진실단기풍속산례방진，결과표명해모형능구재순시풍속위25~35 m/s시대풍력궤출력진행유효평은적공제。
We take the wind speed forecasting method of the Elman neural network algorithm as the foundation, establishing the mathematical model of operation when a single permanent magnet direct-drive ( PMSG) wind turbines under the condition of strong wind. Considering the mapping relation between the output power of the traditional law and the law of output power under the strong wind model, we used the deviation between the output law of the traditional and law of the output power under strong wind model as the reference, introducing the PI control strategy for PMSG wind turbines pitch Angle, rotation speed, so considering the requirement of power grid dispatch to output power, an single PMSG wind turbine of short-term output control under the condition of strong wind model is established. The further example simulation with real short-term wind speed show that the proposed model can effectively smooth control the output power of wind turbine when the instantaneous wind speed of 25 ~35 m/s.