电力系统自动化
電力繫統自動化
전력계통자동화
AUTOMATION OF ELECTRIC POWER SYSTEMS
2012年
24期
34-38
,共5页
风力发电%同步扰动随机逼近(SPSA)%永磁同步发电机%电源转换器%最大功率追踪
風力髮電%同步擾動隨機逼近(SPSA)%永磁同步髮電機%電源轉換器%最大功率追蹤
풍력발전%동보우동수궤핍근(SPSA)%영자동보발전궤%전원전환기%최대공솔추종
wind power generation%simultaneous perturbation stochastic approximation (SPSA)%permanent magnetsynchronous generator%power converter%maximum power tracking
为使风力发电系统在变动风速下不受外界干扰，易使风力机保持在最大功率点运行，文中提出采用同步扰动随机逼近（SPSA）算法进行风力发电系统最大功率追踪。SPSA算法通过调节电源转换器的工作周期，间接控制风力发电机转速，使风力发电系统在任何风速下皆可运行在最大功率点，并避免实际运行时使用风力计和转速计。仿真结果表明，无论风速如何变化，SPSA算法能有效提高风力发电系统输出功率，并使叶尖速比和效能指数维持在最佳值附近。
為使風力髮電繫統在變動風速下不受外界榦擾，易使風力機保持在最大功率點運行，文中提齣採用同步擾動隨機逼近（SPSA）算法進行風力髮電繫統最大功率追蹤。SPSA算法通過調節電源轉換器的工作週期，間接控製風力髮電機轉速，使風力髮電繫統在任何風速下皆可運行在最大功率點，併避免實際運行時使用風力計和轉速計。倣真結果錶明，無論風速如何變化，SPSA算法能有效提高風力髮電繫統輸齣功率，併使葉尖速比和效能指數維持在最佳值附近。
위사풍력발전계통재변동풍속하불수외계간우，역사풍력궤보지재최대공솔점운행，문중제출채용동보우동수궤핍근（SPSA）산법진행풍력발전계통최대공솔추종。SPSA산법통과조절전원전환기적공작주기，간접공제풍력발전궤전속，사풍력발전계통재임하풍속하개가운행재최대공솔점，병피면실제운행시사용풍력계화전속계。방진결과표명，무론풍속여하변화，SPSA산법능유효제고풍력발전계통수출공솔，병사협첨속비화효능지수유지재최가치부근。
Simultaneous perturbation stochastic approximation (SPSA) algorithm is proposed for tracing the maximum power of wind power system. It aims to enable system to be free from outside interference under variable wind speeds, andto maintain wind turbine at the maximum power operating point. For SPSA algorithm, wind turbine speed is indirectly controlled through adjusting the duty cycle of the power converter, which will enable wind power system to operate at the maximum power point under any wind speed, and do not need tachometer and anemometer in practical application. As shown in the simulation results, no matter how the wind speed changes, SPSA algorithm can effectively improve the power output of wind power system, and maintain the tip speed ratio (TSR) and coefficient power (CP) at the neighborhood of the optimum value.
