山西电力
山西電力
산서전력
SHANXI ELECTRIC POWER
2014年
1期
1-5
,共5页
冲击负荷%冲击功率分配%调速器%地区电网%发电机
遲擊負荷%遲擊功率分配%調速器%地區電網%髮電機
충격부하%충격공솔분배%조속기%지구전망%발전궤
impact load%power assignment%governor%regional power grid%generator
随着国民经济的快速发展,大容量用电设备逐年增加,尤其是超高功率交流电弧炉,由于运行工况的变化,造成负荷的巨幅频繁变化,有可能影响电力系统临近发电机组的正常运行。针对冲击负荷对邻近发电机组的冲击功率分配的问题,分析了冲击发生后t=0+和t=t1时刻,即调速器动作之前的冲击功率分配情况,并且对t>t1调速器动作之后冲击功率的分配问题进行了分析,提出了改进措施,最后通过某地区实际电网验证了分析结论的正确性和可行性。
隨著國民經濟的快速髮展,大容量用電設備逐年增加,尤其是超高功率交流電弧爐,由于運行工況的變化,造成負荷的巨幅頻繁變化,有可能影響電力繫統臨近髮電機組的正常運行。針對遲擊負荷對鄰近髮電機組的遲擊功率分配的問題,分析瞭遲擊髮生後t=0+和t=t1時刻,即調速器動作之前的遲擊功率分配情況,併且對t>t1調速器動作之後遲擊功率的分配問題進行瞭分析,提齣瞭改進措施,最後通過某地區實際電網驗證瞭分析結論的正確性和可行性。
수착국민경제적쾌속발전,대용량용전설비축년증가,우기시초고공솔교류전호로,유우운행공황적변화,조성부하적거폭빈번변화,유가능영향전력계통림근발전궤조적정상운행。침대충격부하대린근발전궤조적충격공솔분배적문제,분석료충격발생후t=0+화t=t1시각,즉조속기동작지전적충격공솔분배정황,병차대t>t1조속기동작지후충격공솔적분배문제진행료분석,제출료개진조시,최후통과모지구실제전망험증료분석결론적정학성화가행성。
With the development of national economy, a large amount of equipments have become into use,especially the ultra high power AC electric arc furnace. Due to the change of the operation condition,the load changes seriously and frequently so that the adjacent plant generator units could not operate normally. This paper analyses the assignment of the impact power on generator units at the moment of t=0+and t=t1,that is before governor actions,and the situation is analyzed after governor actions at the period of t>t1. The relative measures are presented. At last,taking a certain regional power system in China for the object to be researched,the correctness and feasibility of the proposed method are validated.