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本文按三个水平分别介绍了能量管理系统（ＥＭＳ）的应用软件：能量管理、发电控制与计划、网络分析，强调了“自上而下”的设计原则．由电力部电力科学研究院开发的ＥＭＳ高级应用软件已用于中国三大网调：华北、华中、华东和最大的省调山东。这些软件可以使经验型调度上升到分析型调度，从而提高电力系统运行的安全性与经济性。
This paper introduces the application software of energy management system (EMS) according to three levels: energy management, power generation control and planning, network analysis, emphasizing the design principle of “top-down”. Developed by the Ministry of Electric Power Research Institute of advanced software EMS has been used in China’s three major network: North China, Central China, East China and the largest province of Shandong. These software can make the empirical scheduling up to the analytical scheduling, thereby enhancing the safety and economy of the power system operation.