基于混杂系统建模的柔性多状态开关控制策略  

Flexible Multi-state Switch Control Strategy Based on Hybrid System Modeling

作　　者：苏乾坤 粟时平[1] 倪亮 唐铭泽 明旺 李红 SU Qiankun;SU Shiping;NI Liang;TANG Mingze;MING Wang;LI Hong(School of Electrical and Information Engineering,Changsha University of Science&Technology,Changsha 410114,Hunan Province,China)

机构地区：[1]长沙理工大学电气与信息工程学院,湖南省长沙市410114

出　　处：《现代电力》2023年第5期844-852,共9页Modern Electric Power

基　　金：国家自然科学基金项目(51708194)。

摘　　要：柔性多状态开关(soft open point, SOP)与传统联络开关相比功能更多,响应速度更快,是实现电力网络柔性互联的重要装置之一。SOP中开关器件的存在使系统运行状态在连续系统和离散系统间来回切换,提出对SOP采用更为合适的混杂系统模型进行建模控制。首先对各端口的8种开关模态进行分析,然后将1个工频周期分为12个子区间,通过系统连续状态量和各开关模态的关系推导出各子区间内开关模态的切换规则,依据切换规则设计了离散控制器,根据连续状态量相互之间的转换关系设计了连续控制器,综合得到了各端口在不同运行模式下的混杂控制器,最后在MATLAB/Simulink中搭建仿真模型,通过与传统建模控制方法的仿真对比,验证了所提方案的有效性。Comparing with traditional contact switches,the soft open point(SOP)possesses more functions and faster response speed,so it is one of important device for the realization of power grid flexible interconnection.The existence of the switching element in the SOP made system operation states switched back and forth between continuous system and discrete system,for this reason,it was put forward for SOP to adopt a more suitable hybrid system model to conduct modeling control.Firstly,eight switching modes of each port were analyzed,and then one power frequency cycle was divided into twelve subintervals and through the relation between the system continuous state quantity and each switching mode the switching rule of the switching mode in each subinterval was derived.According to the switching rule the discrete controller was designed,and according to the conversional relation of continuous state quantities each other the continuous controller was designed,and the hybrid controller of each port under different operating modes was comprehensively obtained.Finally,by means of MATLAB/Simulink platform a simulation model was constructed,and through the simulation comparison with traditional modeling control method the effectiveness of the proposed scheme is verified.

关 键 词：柔性多状态开关(SOP) 联络开关 柔性互联 混杂系统 混杂控制器 

分 类 号：TM[电气工程]