基于DistFlow潮流模型的內嵌網損經濟調度方法

王寅 馬覃峰 歐陽可鳳 周川梅

摘? ?要：系統網損是影響電網運行經濟性的重要因素。隨著我國電力市場化改革的深入，市場成員對降低網損、提高效率提出了更高要求。首先介紹了DistFlow潮流模型，分析了該潮流模型的特點和適用性;在此基礎上，根據輸電網電壓特點，通過給定DistFlow潮流模型中的電壓值，提出了內嵌網損的經濟調度方法，并從理論上分析了電壓給定對優化精度的影響;最后基于IEEE-57節點系統構造算例，驗證了本文所提出方法的有效性。

關鍵詞：經濟調度;系統網損;DistFlow潮流模型;運行經濟性

中圖分類號：TM743 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?文獻標識碼：A

An Economic Dispatch Method Embedded Transmission

Loss Based on DistFlow Model

WANG Yin MA Qin-feng，OUYANG Ke-feng，ZHOU Chuan-mei

（Guizhou Power Grid Dispatching Center，Guizhou，Guiyang 550002，China）

Abstract：Transmission loss is an important factor which affects power grid operation economy. With the deepening of China's power market reform，market members have put forward higher requirements on reducing transmission loss and improving efficiency. This paper firstly introduces the DistFlow model and analyzes its characteristics and applicability. According to the characteristics of the transmission grid voltage，this paper proposes an economic dispatch method embedded transmission loss by setting the voltage value in DistFlow model and theoretically analyzes the impact of voltage on the accuracy of optimization. Finally，the validity of this method is proved by a case study on IEEE-57 buses system.

Key words：economic dispatch;transmission loss;DistFlow model;operation economy