基于光热电站水电联产的独立海岛综合供给系统容量优化配置  

Optimal Planning of Integrated Supply System in Independent Islands Based on Cogeneration of Concentrating Solar Power Plants

作　　者：汪致洵 林湘宁[1] 刘畅[1] 孙士茼 童宁[1] 随权 陈哲[2] 李正天[1] WANG Zhixun;LIN Xiangning;LIU Chang;SUN Shitong;TONG Ning;SUI Quan;CHEN Zhe;LI Zhengtian(State Key Laboratory of Advanced Electromagnetic Engineering and Technology(Huazhong University of Science and Technology),Wuhan 430074,Hubei Province,China;Department of Energy Technology,Aalborg University,Aalborg 9210,Denmark)

机构地区：[1]强电磁工程与新技术国家重点实验室(华中科技大学),湖北省武汉市430074 [2]丹麦奥尔堡大学能源技术部,丹麦奥尔堡9210

出　　处：《中国电机工程学报》2020年第16期5192-5203,共12页Proceedings of the CSEE

基　　金：国家自然科学基金重点项目(51537003)。

摘　　要：独立海岛往往面临着供电方式不环保、淡水资源稀缺的双重难题。全可再生能源供给系统是解决上述问题的有效途径。该文首先提出基于光热电站水电联产模式的全可再生能源海岛电能–淡水联合供应系统。该系统通过收集光热发电过程产生的低品位乏汽制备淡水,实现能量的梯级利用,提高系统综合效率;并利用光热电站的灵活可调度性实现风光互补,降低海岛系统的储能配置需求;进一步地,建立全可再生能源海岛供给系统的优化配置模型。仿真结果表明,所提出的综合供给系统有效提升了可再生能源的利用效率以及新能源机组的容量系数,降低了海岛的峰值负荷需求与机组配置容量,具备更好的成本经济效益。Environmental-unfriendly power supply mode and fresh water shortage are two main problems for independent islands. A full renewable energy supply system is an effective solution to the above problems. Firstly, a 100% renewable energy supply system based on the water-electricity cogeneration of concentrating solar power(CSP) plants was proposed in this paper. By collecting the exhaust steam produced in the generation process and using it for water desalination, the cascade utilization of energy was achieved and the overall efficiency of the system was improved. The flexible dispatch ability of CSP plants was utilized to complement to wind power generation and reduce the energy storage configuration requirements for islands. The optimal planning model of the full renewable energy supply system was then established and solved. Simulation results show that the proposed supply system improves the efficiency of renewable energy utilization and capacity factors of renewable energy units;the peak load demand is cut down and the capacity configuration of units is also reduced. The cost-effectiveness of the proposed system is better.

关 键 词：光热发电 水电联产 独立海岛 全可再生能源 

分 类 号：TM715[电气工程—电力系统及自动化]