智能电网
智能電網
지능전망
Smart Grid
2014年
11期
15-20
,共6页
宋洁莹%周飞%拜润清%蔡林海%荆平
宋潔瑩%週飛%拜潤清%蔡林海%荊平
송길형%주비%배윤청%채림해%형평
电力融冰%直流融冰%不停电融冰%直流通路设计
電力融冰%直流融冰%不停電融冰%直流通路設計
전력융빙%직류융빙%불정전융빙%직류통로설계
electric power ice-melting%direct current ice-melting%ice-melting without power cut%DC current circuit design
我国冬季出现的输电线路覆冰的情况严重影响电力系统的可靠运行，现有的电力融冰均需停电进行，对系统影响较大。针对这个问题，分析交、直流不停电融冰的原理及可行性，提出一种新型的不停电直流融冰方法，对其电路结构和所需容量进行分析，并建立不停电融冰装置仿真模型，进行原理和功能验证。基于电力电子调压电路的不停电直流融冰装置具有融冰效率高且不影响线路供电的优点。
我國鼕季齣現的輸電線路覆冰的情況嚴重影響電力繫統的可靠運行，現有的電力融冰均需停電進行，對繫統影響較大。針對這箇問題，分析交、直流不停電融冰的原理及可行性，提齣一種新型的不停電直流融冰方法，對其電路結構和所需容量進行分析，併建立不停電融冰裝置倣真模型，進行原理和功能驗證。基于電力電子調壓電路的不停電直流融冰裝置具有融冰效率高且不影響線路供電的優點。
아국동계출현적수전선로복빙적정황엄중영향전력계통적가고운행，현유적전력융빙균수정전진행，대계통영향교대。침대저개문제，분석교、직류불정전융빙적원리급가행성，제출일충신형적불정전직류융빙방법，대기전로결구화소수용량진행분석，병건립불정전융빙장치방진모형，진행원리화공능험증。기우전력전자조압전로적불정전직류융빙장치구유융빙효솔고차불영향선로공전적우점。
Ice-coating of transmission lines every year in winter seriously affects reliable operation of power grids in China. Present electrical ice-melting methods all require power interruption, which brings negative effects to power grid. To address this issue, principles and feasibility of DC and AC ice-melting without power cut methods are analyzed, a new DC ice-melting without power cut method is proposed, and its circuit structure and capacity requirements are analyzed. At last, a model of the ice-melting device under PSCAD is built and its principles and functions are verified by simulation. The DC ice-melting without power cut device based on power electronic voltage-regulating circuits has high working efficiency and little influence upon regular power supplying.
