摘要：基于节能发电调度的基本原则,分析了节能发电调度的实施模式,针对调度时间的跨度长短、优化目标的不同及系统中机组类型的差异,分别综述了不同的节能发电调度模型,并介绍了现有节能发电调度的传统求解算法和智能算法,探讨了节能发电调度可能对电网和电力企业造成的影响并提出了应对措施,分析了深入推进节能调度可能存在的问题,为未来的研究奠定了基础。

摘要：为客观评价天然气电厂的功能,在充分考虑了天然气发电机组启停迅速、运行灵活、清洁环保的基础上,该文提出了天然气电厂综合效益的概念以及综合效益的整体模型评估方法,该方法通过有等效替代原则设计原始方案与替代方案,对两方案在满足相同的静、动态任务约束下采用机组组合进行运行模拟,两方案的运行成本之差即为天然气电厂的综合效益。77机系统和某实际发电系统规划的算例结果符合实际,验证了天然气电厂综合效益的存在,并分析了产生综合效益的机理以及影响因素。

摘要：基于对微网网架规划特点和用户停电损失的研究,建立了考虑用户停电损失的微网网架规划模型,并将分布式电源(DG)和负荷的时序特性纳入目标函数中,以最小化网络年费用为优化目标,综合考虑潮流约束、运行安全性约束、网络约束和可靠性约束。在Dijkstra形成初始网架后,采用改进的遗传算法求解模型。最后,将其应用于上海某居民小区29节点的微网网架规划中,得出了最优网架规划方案。

摘要：This paper presents an adaptive Under Frequency Load Shedding scheme based on Wide Area Measurement System. Due to the lack of enough adaptability to the operation state of the system, the traditional successive approximation under frequency load shedding method will cause excessive cut or undercut problems inevitably. This method consists first in a comprehensive weight index including load characteristics and inertias of generators. Then active-power deficit calculation based on the Low-order Frequency Response Model, concerning the effect of voltage was put forward. Finally, a dynamic correction of the load shedding amount was proposed to modify the scheme. This approach was applied to IEEE-39 system and the simulation results indicated that the proposed method was effective in reducing the load shedding amount as well as the frequency recovery time.