电工电气
電工電氣
전공전기
ELECTROTECHNICS ELECTRIC
2013年
2期
6-9
,共4页
风光互补%最大功率点跟踪%逆变电源%复合控制
風光互補%最大功率點跟蹤%逆變電源%複閤控製
풍광호보%최대공솔점근종%역변전원%복합공제
hybrid photovoltaic-wind%maximum power point tracking%inverter%repetitive control
为了实现风光互补发电系统的最大功率点跟踪(MPPT),根据风能与太阳能的特性,采用双输入DC/DC变换器作为前级电路,在扰动法的基础上提出自调整MPPT控制策略,有效改善了系统的跟踪速度,避免误操作,减小工作点的震荡,并提高了系统效率.针对逆变电源控制,把自动调节反馈系数的PID控制系统与重复控制系统相结合,不仅提出复合控制算法,使系统具有较好的动静态特性,且改善了逆变器输出波形的质量.
為瞭實現風光互補髮電繫統的最大功率點跟蹤(MPPT),根據風能與太暘能的特性,採用雙輸入DC/DC變換器作為前級電路,在擾動法的基礎上提齣自調整MPPT控製策略,有效改善瞭繫統的跟蹤速度,避免誤操作,減小工作點的震盪,併提高瞭繫統效率.針對逆變電源控製,把自動調節反饋繫數的PID控製繫統與重複控製繫統相結閤,不僅提齣複閤控製算法,使繫統具有較好的動靜態特性,且改善瞭逆變器輸齣波形的質量.
위료실현풍광호보발전계통적최대공솔점근종(MPPT),근거풍능여태양능적특성,채용쌍수입DC/DC변환기작위전급전로,재우동법적기출상제출자조정MPPT공제책략,유효개선료계통적근종속도,피면오조작,감소공작점적진탕,병제고료계통효솔.침대역변전원공제,파자동조절반궤계수적PID공제계통여중복공제계통상결합,불부제출복합공제산법,사계통구유교호적동정태특성,차개선료역변기수출파형적질량.
In order to realize maximum power point tracking (MPPT) of hybrid photovoltaic-wind power generation system, dual input DC/DC converter was adopted as the forward circuit according to features of wind energy and solar energy. On the basis of disturbance method, the self-adjusting MPPT control strategy was raised to have effectively improved tracking speed of the system, avoiding misopera-tion, reducing vibration of working point and raising the system efficiency. As for inverter control, the PID control system for auto-adjusting feeding coefficient was combined with the repetitive control system. This paper not only raised the repetitive control algorithm, making the system have better static and dynamic characteristics, but also improved quality of inverter output waveforms.
