王寅 马覃峰 欧阳可凤 周川梅

摘   要：系統网损是影响电网运行经济性的重要因素。随着我国电力市场化改革的深入，市场成员对降低网损、提高效率提出了更高要求。首先介绍了DistFlow潮流模型，分析了该潮流模型的特点和适用性;在此基础上，根据输电网电压特点，通过给定DistFlow潮流模型中的电压值，提出了内嵌网损的经济调度方法，并从理论上分析了电压给定对优化精度的影响;最后基于IEEE-57节点系统构造算例，验证了本文所提出方法的有效性。

关键词：经济调度;系统网损;DistFlow潮流模型;运行经济性

中图分类号：TM743                                      文献标识码：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