摘要
基于提出的建设泛在电力物联网的号召,利用统一潮流控制器(unified power flow controller,UPFC)实现物理层面上多条线路的紧密联系。由多个换流器串联接入到多条输电线路上,另外多个并联换流器连接到其他多个网络中,形成一个由换流器作为媒介的大型电力系统输电框架。在连接众多换流器的直流线路上,由储能电池作为有功功率支撑并联接入,共同组成泛在电力物联网框架下的新型UPFC系统。对新型UPFC系统进行数学建模,以对可再生能源的最大消纳能力和有功功率传输的最小成本为目标函数,用遗传算法进行求解。通过算例仿真验证了新型UPFC系统在增强有功功率传输极限、减少有功功率传输成本等方面的优越性。
In building ubiquitous power Internet of things,the unified power flow controller( UPFC) may be used to realize the close connection of multiple lines on the physical level. A large-scale power system transmission framework is formed by connecting multiple converters in series to multiple transmission lines,and connecting multiple parallel converters to other multiple networks. On the DC lines connecting many converters,the energy storage battery is connected in parallel as the active power support to form a new UPFC system under the framework of the power internet of things. The mathematical model of the new UPFC system is established,and the objective function is the maximum capacity of renewable energy accommodation and the minimum cost of active power transmission. The advantages of the new UPFC system in enhancing the transmission limit of active power and reducing the transmission cost of active power are verified by numerical simulation.
作者
赵长枢
邱晓燕
赵有林
李凌昊
张楷
刘梦依
ZHAO Changshu;QIU Xiaoyan;ZHAO Youlin;LI Linghao;ZHANG Kai;LIU Mengyi(College of Electrical Engineering,Sichuan University,Chengdu 610065,China)
出处
《电力建设》
北大核心
2020年第1期39-44,共6页
Electric Power Construction
基金
四川省科技厅重点研发项目(2017FZ0103)~~
