电机与控制应用
電機與控製應用
전궤여공제응용
ELECTRIC MACHINES & CONTROL APPLICATION
2014年
8期
51-57
,共7页
陈亚爱%刘劲东%周京华%金雍奥
陳亞愛%劉勁東%週京華%金雍奧
진아애%류경동%주경화%금옹오
新能源发电%并网逆变器%低电压穿越%无功支撑
新能源髮電%併網逆變器%低電壓穿越%無功支撐
신능원발전%병망역변기%저전압천월%무공지탱
new energy power%grid-connected inverter%low voltage ride through%reactive support
在探讨基于并网逆变器的低电压穿越技术的基础上,研究在不增加其他硬件的条件下,通过采取控制策略的方式解决低电压运行下变流器的保护问题,实现低电压区域下的安全穿越;同时向电网提供无功支撑,以帮助电网系统恢复。采用MATLAB/Simulink对低电压穿越方案进行仿真,验证了该方案的可行性及有效性。
在探討基于併網逆變器的低電壓穿越技術的基礎上,研究在不增加其他硬件的條件下,通過採取控製策略的方式解決低電壓運行下變流器的保護問題,實現低電壓區域下的安全穿越;同時嚮電網提供無功支撐,以幫助電網繫統恢複。採用MATLAB/Simulink對低電壓穿越方案進行倣真,驗證瞭該方案的可行性及有效性。
재탐토기우병망역변기적저전압천월기술적기출상,연구재불증가기타경건적조건하,통과채취공제책략적방식해결저전압운행하변류기적보호문제,실현저전압구역하적안전천월;동시향전망제공무공지탱,이방조전망계통회복。채용MATLAB/Simulink대저전압천월방안진행방진,험증료해방안적가행성급유효성。
The large power station low voltage through technology was discussed in detail. Taking control measures to solve the protection of inverter under the low voltage running, control system ride through the low voltage operation area safety was realized. At the same time, reactive support to help power grid system recovery was provided. MATLAB/Simulink was used to simulate the low voltage through scheme which verifies its feasibility and validity.