船舶电力推进永磁同步电机SVM-DTC控制系统优化  

Optimization of SVM-DTC for Permanent Magnetic Motor in Ship Electric Propulsion

作　　者：李云鹏[1] 赵宏革[1] 李世霖[1] 孙军浩[1] 冯杨[1] Li Yunpeng Zhao Hongge Li Shilin Sun Junhao Feng Yang(School of Marine Engineering, Dalian Maritime University, Dalian 116026, China)

机构地区：[1]大连海事大学轮机工程学院,辽宁大连116000

出　　处：《船电技术》2017年第2期28-32,共5页Marine Electric & Electronic Engineering

摘　　要：针对船舶电力推进永磁同步电机(PMSM)直接转矩控制系统存在较大转矩脉动问题,论文提出了一种基于双PI的空间矢量调制(SVM-DTC)直接转矩控制新策略。该控制策略通过空间矢量调制合成电压矢量,代替传统开关表与滞环比较器,采用两个PI调节器分别对电压矢量角度与幅值进行控制,在保持系统结构简单的基础上,显著地减小转矩脉动,具有较强的鲁棒性,改善了船舶电力推进系统中永磁同步电机的稳态性能与动态性能,优化效果明显。仿真结果证实了该控制策略的有效性。In order to reduce the torque ripple that exists in direct torque control of permanent magnet synchronous in ship electric propulsion, a new direct torque control plan based on space vector modulation is proposed. This plan mainly uses two PI regulators to control the angle and amplitude of the voltage vector respectively, synthesized by space vector modulation. With simple structure and stronger robust, the proposed plan optimization effect is obvious, which reduces torque ripple significantly and improves steady performance and dynamic of the permanent magnet synchronous motor in ship power system. The simulation result verifies the feasibility and validity of the plan.

关 键 词：船舶电力推进 直接转矩控制 空间矢量调制 PI 调节器 转矩脉动 

分 类 号：U665.13[交通运输工程—船舶及航道工程]