摘要
模型预测直接功率控制方法简单,响应速度快,被广泛应用于并网逆变器系统。本文首先介绍了现有的模型预测直接功率控制的原理,建立了相对应的模型预测控制数学模型。然后在现有理论的基础上,提出了多代价函数模型预测直接功率控制,通过增加代价函数的数量,让系统跟随功率偏差确定合适的代价函数,提高了控制系统的可选择性。最后,搭建了多代价函数模型预测直接功率控制的仿真模型和实验样机,证实了所提多代价函数直接功率控制策略的正确性和有效性。
The model predictive direct power control method is simple and the response speed is fast. It is widely used in grid-connected inverter system. The principle of the existing model predictive direct power control is first introduced. Then the corresponding model predictive control mathematical model is established. Based on the existing theory, a multi-cost function model predict direct power control is proposed, which increases the number of cost functions, allows the system to determine the appropriate cost function following the power deviation, and improves the control performance. Finally, the simulation model and experimental prototype of multi-cost function model predictive direct power control are built, which prove the correctness and effectiveness of the proposed control strategy.
作者
李磊
强耀东
袁辉
傅洪全
LI Lei;QIANG Yaodong;YUAN Hui;FU Hongquan(Inner Mongolia electric power(Group)Co.,Hohhot Inner Mongolia 010020,China;Beijing Power Online Technology Co.,Beijing 100085,China;Beijing Key Laboratory of high voltage&Electromagnetic Compatibility,North China Electric Power University,Beijing 102206,China)
出处
《电子器件》
CAS
北大核心
2023年第3期849-853,共5页
Chinese Journal of Electron Devices
关键词
并网逆变器
模型预测控制
直接功率控制
多代价函数
grid-connected inverter
model predictive control
direct power control
multi-cost function
