电源技术
電源技術
전원기술
CHINESE JOURNAL OF POWER SOURCES
2014年
11期
2152-2154,2191
,共4页
王兴贵%郭群%杨维满%时瑞
王興貴%郭群%楊維滿%時瑞
왕흥귀%곽군%양유만%시서
风光互补发电系统%DC/DC变换器%双向DC/DC变换器%功率平衡控制
風光互補髮電繫統%DC/DC變換器%雙嚮DC/DC變換器%功率平衡控製
풍광호보발전계통%DC/DC변환기%쌍향DC/DC변환기%공솔평형공제
wind and solar power generation system%DC/DC converter%two-way DC/DC converter%power balance control
介绍了风光互补逆变器串联发电系统的拓扑结构,采用载波移相正弦波脉宽调制(CPS-SPWM)技术控制各个发电单元逆变器的通断,该调制方式下系统输出电压为多电平,且电压、电流的谐波含量大大降低。在功率预测和功率分配的基础上对发电系统进行能量管理,根据负载功率需求分别通过调节发电单元DC/DC变换器和蓄电池双向DC/DC变换器,控制各个发电单元以及蓄电池的输出功率,达到系统功率平衡控制的目的。仿真结果表明,该功率平衡控制策略能够保证系统功率平衡,满足系统在独立运行时负载功率跟踪控制的要求。
介紹瞭風光互補逆變器串聯髮電繫統的拓撲結構,採用載波移相正絃波脈寬調製(CPS-SPWM)技術控製各箇髮電單元逆變器的通斷,該調製方式下繫統輸齣電壓為多電平,且電壓、電流的諧波含量大大降低。在功率預測和功率分配的基礎上對髮電繫統進行能量管理,根據負載功率需求分彆通過調節髮電單元DC/DC變換器和蓄電池雙嚮DC/DC變換器,控製各箇髮電單元以及蓄電池的輸齣功率,達到繫統功率平衡控製的目的。倣真結果錶明,該功率平衡控製策略能夠保證繫統功率平衡,滿足繫統在獨立運行時負載功率跟蹤控製的要求。
개소료풍광호보역변기천련발전계통적탁복결구,채용재파이상정현파맥관조제(CPS-SPWM)기술공제각개발전단원역변기적통단,해조제방식하계통수출전압위다전평,차전압、전류적해파함량대대강저。재공솔예측화공솔분배적기출상대발전계통진행능량관리,근거부재공솔수구분별통과조절발전단원DC/DC변환기화축전지쌍향DC/DC변환기,공제각개발전단원이급축전지적수출공솔,체도계통공솔평형공제적목적。방진결과표명,해공솔평형공제책략능구보증계통공솔평형,만족계통재독립운행시부재공솔근종공제적요구。
The scenery complementary cascaded multilevel inverter topology of the inverter was introduced using carrier phase shift pulse width modulation (CPS-SPWM) technology. The output voltage level could be increased and the voltage and current harmonic content could be greatly reduced. The power generation system was managed on the basis of power prediction and power al ocation. Scenery power units and battery output power were control ed by adjusting respectively scenery power generation unit DC/DC converter and battery two-way DC/DC converter. The purpose of system power balance control was achieved. Simulation results show that power balance of the system can be kept by the control strategy, and the system independent operation load power tracking control requirements can be satisfied.