PCC點接納風電能力研究
樂曉蓉
（中國能源建設集團江蘇省電力設計院有限公司，江蘇 南京 210002）
摘 要：基于某地區大規模發展風電現狀，結合具體案例研究了風電不同并網方式對PCC 點( 公共接入點) 主變降壓功率、電壓波動、短路及系統潮流產生的影響，找出影響電網接納風電能力的關鍵因素，并提出通過增加風電場無功補償，提高PCC 點電壓調節能力，增加變電站主變容量及負荷，加強網架結構等措施來提高PCC 點接納風電容量的能力，為今后開展風電接入系統設計提供了參考。
關鍵詞：接入電網；公共接入點；電力平衡；電壓波動
中圖分類號：TM614 文獻標識碼：A 文章編號：1007-3175(2017)01-0001-03
Study on Point of Common Coupling Acceptance of Wind Power Capacity
LE Xiao-rong
（Jiangsu Power Design Institute Co., Ltd, China Energy Engineering Group, Nanjing 210002, China）
Abstract: On the basis of the large-scale development of wind power current situation in certain area, combining with the concrete cases, this paper studied on the impact of different wind power grid connected methods on the main transformer depressurization power, voltage fluctuation, short circuit and system tide of PCC (point of common coupling), found out the key factors influencing on wind power capacity of grid acceptance and proposed measures to improve the PCC voltage regulation capacity via increasing the reactive compensation of wind power plant. The main transformer capacity and load in substation were increased to enhance the grid structure etc measures to raise the PCC wind power capacity of grid acceptance to provide references for the following wind power access system design.
Key words: access grid; point of common coupling; power balance; voltage fluctuation
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