基于DistFlow潮流模型的內(nèi)嵌網(wǎng)損經(jīng)濟調(diào)度方法

王寅 馬覃峰 歐陽可鳳 周川梅

摘? ?要：系統(tǒng)網(wǎng)損是影響電網(wǎng)運行經(jīng)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(wǎng)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(chǔ)上，根據(jù)輸電網(wǎng)電壓特點，通過給定DistFlow潮流模型中的電壓值，提出了內(nèi)嵌網(wǎng)損的經(jīng)濟調(diào)度方法，并從理論上分析了電壓給定對優(yōu)化精度的影響;最后基于IEEE-57節(jié)點系統(tǒng)構(gòu)造算例，驗證了本文所提出方法的有效性。

關(guān)鍵詞：經(jīng)濟調(diào)度;系統(tǒng)網(wǎng)損;DistFlow潮流模型;運行經(jīng)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