基于FCS-MPC控制算法的MMC电容电压控制策略  

Research on Control Strategy for Capacitor Voltage of MMC Based on FCS-MPC Algorithm

作　　者：彭放 李亦非[1] 步志文[2] 罗义钊 

机构地区：[1]国网北京市电力公司电力科学研究院,北京100045 [2]国网北京市电力公司,北京100031 [3]福建网能科技开发有限责任公司,福建福州350003

出　　处：《电力电子技术》2017年第6期64-66,共3页Power Electronics

基　　金：国网北京市电力公司城区计量器具周转柜建设项目(500023974)~~

摘　　要：模块化多电平换流器(MMC)因其设计的灵活性及拓展的便利性,在解决电压源换流器高压直流输电(VSC-HVDC)技术的电压与容量问题方面具有显著优势,是当下研究的热点。从VSC-HVDC的组成和基础理论入手,研究了MMC的运行原理,构建了MMC-HVDC在两种坐标系下的数学模型。引入预测控制的概念,研究了有限控制集的模型预测控制(FSC-MPC)在MMC-HVDC电容电压控制中的应用,并重新设计FCS-MPC的优化函数,避免了其应用于多目标控制时,由于引入权重因子而造成的控制系统参数设计困难的弊端,并通过Simulink仿真与实验验证了其正确性。Modular multilevel converter（MMC） has a significant advantage in dealing with voltage source converter high voltage direct current transmission （VSC-HVDC） capacity issues because of its design flexibility, and expand convenience, which is also the immediate research focus.From the perspective of the structure and the basic theory of VSC-HVDC, the operation principle of MMC is studied and the MMC-HVDC mathematical model under two kinds of coordinate system is built.On the basis of a finite set of control model predictive control（FSC-MPC） ,the concept of predictive con- trol is introduced to study its application in the MMC-HVDC capacitor voltage control, and redesign the FCS-MPC optimization function, which avoid the disadvantages of difficulties in control system design due to the introducing of weighting factor in its application of the multi-objective control.The accuracy is verified based on Simulink simulation.

关 键 词：模块化多电平换流器 高压直流输电 电容电压 

分 类 号：TM46[电气工程—电器]