基于线性规划的三端口变流器最优功率分配研究  

Optimal Power Allocation of Three Port Converter Based on Linear Programming

作　　者：李立岱 周子航 高思路 刘畅[1] 邓焰[1] LI Lidai;ZHOU Zihang;GAO Silu;LIU Chang;DENG Yan(College of Electrical Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]浙江大学电气工程学院,浙江杭州310027

出　　处：《电工技术》2020年第19期17-20,27,共5页Electric Engineering

摘　　要：针对一种含有2个直流端口和1个并网交流端口的三端口变流器,研究了实现低压直流端口功率占直流端口总功率比值(简称功率比)最大的功率分配策略。通过六元线性规划得到了最优调制策略和理论上的最大功率比,同时为了解决多元线性规划求解困难的问题,提出了一种基于二元线性规划的简化调制策略。两种调制策略均增大了现有方法的功率调节范围。最后通过Simulink仿真验证了简化调制策略在提高功率比方面的优势。For a three port converter with two DC ports and one grid connected AC port,the power allocation strategy was studied to achieve the maximum power ratio of the low-voltage DC port to the total power of the DC port.The optimal modulation strategy and the theoretical maximum power ratio were obtained by six-element linear programming.Aimed at the solving problem of multiple linear programming,a simplified modulation strategy based on binary linear programming was proposed.Both modulation strategies increased the power regulation range of the existing methods.Finally,the advantage of simplified modulation strategy in improving power ratio was verified by Simulink simulation.

关 键 词：三端口变流器 矢量调制策略 线性规划 

分 类 号：TM464[电气工程—电器]