互聯電網一次調頻特性研究
任麗娜
山西省電子信息產品檢驗所，山西 太原 030001
摘 要：介紹了一次調頻在電力系統中的作用，從原動機參與一次調頻的角度出發，研究了機組一次調頻及其投入狀態與電網頻率品質和聯絡線傳輸功率之間的關系，給出了不同一次調頻分布下頻率響應曲線與聯絡線功率變化圖。結果表明，在合理選擇機組的調頻死區后，當各區域內機組的一次調頻功能投入均勻時，既可以提高電網頻率的品質，又可以緩解緊急事故下區域間互助和聯絡線過載之間的矛盾，改善電網運行的安全性和可靠性。
關鍵詞：一次調頻；聯絡線功率；負荷擾動
中圖分類號：TM712 文獻標識碼：A 文章編號：1007-3175(2013)12-0026-04
Primary Frequency Characteristics Study of Interconnected Power System
REN Li-na
Shanxi Electronic Information Product Inspection Institute, Taiyuan 030001, China
Abstract: Introduction was made to the function of primary frequency control. Starting from the angle of original machine taking part in primary frequency control, this paper studied the relationship between generators unit primary frequency control and its connecting status and power system quality and tie-line transmission power, giving frequency response curves and tie-line power change diagrams under different primary frequency distribution. The result shows that after the generators unit frequency dead zone is rationally selected, when generators unit primary frequency control function in each area is connected evenly, the quality of power system frequency can be raised, as well as the contradiction between areas mutual assistance and tie-line overload can be released under emergency accident, which improve the safety and reliability of power system operation.
Key words: primary frequency control; tie-line power; load disturbance
參考文獻
[1] 魏慶海，魯順，范東春，陳曉東，李鐵.東北電網頻率與聯絡線潮流的關系[J].電網技術，2004，28(6)：22-25.
[2] 張毅明，羅承廉，孟遠景，何南強.河南電網頻率響應及機組一次調頻問題的分析研究[J].中國電力，2002(7)：35-38.
[3] 于達仁，郭鈺鋒.電網的一次調頻能力的在線估計[J].中國電機工程學報，2004，24(3)：72-76.
