电力系统负荷预测是电力系统运行、控制和规划不可缺少的一部分，是电力市场技术支持系统的基础。
Power system load forecast, which is the base of power market technique supporting system, is an essential part of power system operation, control and planning.
在电力市场条件下，只有给发电机的这种服务以正确的价格信号和适当的经济补偿，才能有利于电力系统的安全稳定运行。
Only if the service is given proper economic compensation and accurate pricing, it can benefit to safe and economical operation of power system under deregulation.
备用是辅助服务的主要组成部分，关系到电力系统的安全运行和可靠性，是电力市场重要的特征之一。
Being one of the most important characteristics of power market ancillary services, reserves have deep influences on security and reliability of power systems.
机组组合是改善传统电力系统运行经济性和电力市场出清的重要手段。
Unit commitment is an important means to improve operational economic efficiency in traditional power systems and a critical market clearing tool of electricity market.
本文提出了电力市场的定义：即电力市场是依赖经济规律，采用法律、经济手段，本着公平竞争原则，对电力系统中发电、输电、供电、用户等成员组织、协调运行的管理机制和执行系统的总和。
The definition was given of the power market: the power market is a system that rely on the economic principle, using method of law and economy, that is strictly bound to fair play.
电力用户停电损失函数对电力系统规划、运行和电力市场下的安全费用计算等具有重要意义。
Power customer interruption cost functions (PCICF) are important for power system planning, operation, and security pricing under deregulation.
因此，电力市场环境下的旋转备用方案的制定需要兼顾电力系统运行的可靠性和经济性。
Therefore, the layout of spinning reserve scheme in the environment of electricity market should pay attention to both the reliability and the economy in power system operation.
电力市场的运营在给电力系统和社会带来巨大经济效益的同时，也对电力系统稳定运行提出了更高的要求。
Electricity market operation in power systems not only brings the huge economic efficiency, but also put forward higher request to power system stability.
电力市场的运营在给电力系统和社会带来巨大经济效益的同时，也对电力系统稳定运行提出了更高的要求。
Electricity market operation in power systems not only brings the huge economic efficiency, but also put forward higher request to power system stability.
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