风电-光热联合发电系统的运行特性和控制策略研究

With the dramatic increase of the installed capacity of Wind Farm (WF), it becomes more and more urgent to improve the wind power accommodation substantially. Concentrated Solar Power (CSP) is certified as a new energy power source that can provide stable and reliable electric energy because it is equipped with energy storage device. Using CSP as the regulating power source of WF, it is a new creative form of effectively resolving the problem of wind power accommodation to construct WF and CSP hybrid generation system (WF-CSP system). WF-CSP system not only raise the stability of grid-connected operation of WF and CSP, but also utilize more adequately wind energy and solar energy at the same time. Towards the research about this hybrid system, it has not been public literature in China. Moreover, it is still at an early stage of exploration at abroad. In this project, adopting the technical route of theoretical analysis, numerical calculation, experimental verification, the construction of WF-CSP system is researched; operating feature and coordinated operation mechanism of WF-CSP system are studied; the steady-state models and dynamic models of WF-CSP system and its subsystems are established; operating characteristics of WF-CSP system, including steady-state characteristic and dynamic characteristic, are revealed; the operating control strategy and optimal dispatch scheme of WF-CSP system are proposed. Research achievements will lay the theoretical and technical foundation of optimal design and safety operation of WF-CSP system, has important theoretical and practical value.

随着风电装机容量的急剧增加，大幅提高风电消纳能力已变得十分迫切。光热发电系统因其储能装置具有调节功能而被证实是一种能提供稳定可靠电能的新能源电源。将光热电站作为风电场的调节电源，构建风电-光热联合发电系统是有效解决风电消纳问题的一种创新形式。该联合系统不但可同时提高风电场和光热电站并网运行的稳定性，还可更充分地利用风能和太阳能资源，提高综合发电量。对于该联合系统的研究，国内尚未见公开报导，国外也还处于起步探索阶段。本项目拟经理论分析、数值计算、试验验证，针对风电-光热联合发电系统，探索其构建形式；剖析其工作特点、运行机制和协调机理；建立其整体以及各子系统的稳态和动态模型；揭示其运行特征和运行特性（包括稳态和动态特性）；提出其风电子系统、储能装置、光热子系统的协调控制策略以及整体优化调度方案。研究成果将为风电-光热联合发电系统的优化设计和安全运行奠定理论和技术基础，具有重要的理论和实用价值。

随着风电装机容量的急剧增加，大幅提高风电消纳能力已越来越迫切。光热发电系统因其配备了储能调节装置已被证实是一种能够提供稳定可靠电能的新能源电源。将光热电站作为风电场的调节电源，构建风电-光热联合发电系统是有效解决风电消纳问题的一种创新形式。本项目提出的联合发电系统不但可更充分地利用风能和太阳能，还可同时提高风电场和光热电站的并网运行稳定性和运行效率。对于该联合系统的研究，立项时国内尚未见公开报道，国外也还处于起步探索阶段。 在立项的三年时间里，对该联合系统及相似系统的研究逐渐增多，该领域蓬勃发展起来。本项目经理论分析、数值计算、实验验证，探索了风电-光热联合发电系统的构建形式；剖析了该联合系统的工作特点和协调运行机理，建立了该联合系统及其各子系统的稳态和动态模型；揭示了该联合系统的运行特性（包括稳态和动态特性）；提出了该联合系统的运行控制策略和优化调度方案。研究成果将为风电-光热联合发电系统的优化设计和安全运行奠定关键技术基础，具有重要的理论和实用价值，并可推动风电并网领域的理论创新和技术进步。