整合能源系统开放柔性资源:现代电力系统灵活性研究综述

虽然电力系统本身具有一定的适应变化的能力,但随着并网的可变可再生能源(主要是风能和太阳能)水平的提高,灵活性已经成为现代电力系统最值得注意的焦点之一.一方面,通过结合电、热、气和其他能源,将能源系统整合,使最终用户能够灵活地转换所消耗的能源.另一方面,市场的开放和明智的能源价格/定价促进公共事业和监管机构获得廉价的可再生能源和存储资源,这减少了可再生能源的紧缩.在此背景下,探讨了如何提高电力系统的灵活性,以适应可再生能源的日益普及.首先,概述了电力系统的灵活性,包括供给侧系统的灵活性和需求侧系统的灵活性;然后介绍了如何将供给侧灵活性和需求侧灵活性结合起来优化整个电力系统的灵活性;最后介绍了柔性集成与优化的关键应用和发展趋势.该研究能为今后的柔性能源研究和工程项目提供参考.

Opening flexible resources by integrating energy systems:A review of flexibility for the modern power system

Although the power system itself has had some ability to accommodate changes,the flexibility has become one of the most noteworthy focuses of modern power systems,with the increasing level of grid-connected variable re-newable energy (primarily,wind and solar).On the one hand,the integration of energy systems by combining elec-tricity,heat,gas and other energy sources makes it possible for end-users to switch consumed energy flexibly.On the other hand,the opening of markets and smart energy rates/pricing promote public utilities and regulators to obtain cheap renewable and storage resources,which reduce the curtailment of renewable energy.In this context,this paper aims at discussing how to improve the flexibility of the power systems to accommodate the increasing penetration of renewable energy.First,the flexibilities of the supply-side and demand-side of power system are summarized.Then how to take the advantages of both the supply-side and demand-side flexibility to optimize the flexibility of the whole power system is introduced,lastly the key applications and development trends of integration and optimization of flex-ibility are introduced.Hopefully,this paper will provide a reference for future research and engineering projects on flexibility.