基于三相逆变器SPWM控制和CHBPWM控制的轴带发电机稳压稳频系统仿真研究  

Simulation Research on Voltage Stabilization and Frequency Stabilization System of Shaft Generator Based on Three-phase Inverter SPWM Control and CHBPWM Control

作　　者：陈冬兵 张存喜 王瑞 杨梓强 CHEN Dong-bing;ZHANG Cun-xi;WANG Rui;YANG Zi-qiang(School of Ocean Engineering Equipment,Zhejiang Ocean University,Zhoushan 316022,China;School of Shipping and Maritime Engineering,Zhejiang Ocean University,Zhoushan 316022,China)

机构地区：[1]浙江海洋大学海洋装备工程学院,舟山316022 [2]浙江海洋大学船舶与海运学院,舟山316022

出　　处：《自动化与仪表》2022年第12期12-17,23,共7页Automation & Instrumentation

基　　金：舟山市科学技术局浙江海洋大学科技重大专项项目(2021C21001);浙江省虚拟仿真实验教学项目(11184890421)。

摘　　要：与柴油发电机相比,轴带发电机具有节省能源、易维护、占地空间小等优势,在中小型渔船运用越来越广泛。但是由于轴带发电机挂载在主柴油机上,易受各种复杂工况影响,使得转速不稳定情况时常发生,所以发电机发出电源频率和电压不稳定,严重损害渔船用电设备。该文设计了一种基于Boost升压模块的渔船轴带发电机电网稳压稳频轻型控制系统。该系统包括不可控整流-Boost升压-逆变等环节,在Matlab(Simulink)中搭建系统模型,对系统逆变电路分别采用正弦脉宽调制(SPWM)方式和电流滞环(CHBPWM)控制方式进行控制,并对负载相电压进行了谐波分析。仿真结果表明,在此稳压稳频系统中采用电流滞环(CHBPWM)控制方式下电压谐波含量(11.93%),远低于正弦脉宽调制(SPWM)方式下的谐波含量(37.38%),说明在所设计的轴带发电机稳压稳频系统中,电流滞环控制比正弦脉宽调制控制更具有优越性。Compared with diesel generators,shaft generators have the advantages of energy saving,easy maintenance and small footprint,they are more and more widely used in small and medium fishing boats.However,since the shaft generator is mounted on the main diesel engine,it is easily affected by various complex working conditions,so that unstable rotational speed often occurs,so the frequency and voltage of the power supply generated by the generator are unstable,which seriously damages the electrical equipment of fishing boats.In this paper,a light-weight control system for grid voltage regulation and frequency stability of fishing boat shaft generator power grid based on Boost module is designed.The system includes uncontrollable rectification-Boost-inversion and other links.The system model is built in Matlab(Simulink),and the SPWM mode and the CHBPWM control mode are respectively used for the inverter circuit of the system.The control is carried out and the harmonic analysis of the load phase voltage is carried out.The simulation results show that the voltage harmonic content(11.93%)under the CHBPWM control mode in this voltage and frequency stabilization system is much lower than the harmonic content(37.38%)under the SPWM mode.Indicating that the current hysteresis control is more superior than the sinusoidal pulse width modulation control in the designed shaft generator voltage and frequency stabilization system.

关 键 词：稳压稳频 Boost升压 电流滞环控制 正弦脉宽调制 谐波 

分 类 号：TM341[电气工程—电机]