遥控水下机器人用高压直流变换系统及其控制策略  

High-voltage DC Converter System for Remotely Operated Vehicle and Its Control Strategy

作　　者：陈志鹏 CHEN Zhipeng(China Huadian Group Materials Co.,Ltd.,Beijing 100032,China)

机构地区：[1]中国华电集团物资有限公司,北京100032

出　　处：《控制与信息技术》2023年第6期111-115,共5页CONTROL AND INFORMATION TECHNOLOGY

摘　　要：作业级水下机器人要求供电装置功率密度大、效率高且冗余。对此,文章设计了一种多变换器并联冗余运行的高压直流变换系统,用于遥控水下机器人(ROV)的电能变换和供给;在分析多电平飞跨电容Buck变换器拓扑结构的基础上,提出了一种集成变换器内多器件串联均压控制和多变换器间并联均流控制功能的高压直流变换系统控制方法,并进行了实验验证。结果表明,文中所设计的高压直流变换系统及其控制策略可靠、有效,变换器内各飞跨电容器电压维持稳定,电压偏差小于10%;多变换器的输出电流不平衡度小于5%,并具有较快的动态响应,可广泛应用于具有高可靠性要求的深海领域设备,如水下机器人。Working-class underwater vehicle require power supply devices that are high in power density,efficiency and redundancy.To meet these needs,this study designed a high-voltage DC converter system that operates with multiple converters running in parallel redundancy,intended for the power conversion and supply of remotely operated vehicle(ROV).Based on the analysis of the topology of multi-level flying capacitor Buck converters,a control method for the high-voltage DC converter system is proposed.This method integrates voltage equalization control for multiple devices connected in series inside the converter and current sharing control across multiple converters.Experimental verification was carried out to confirm the strategy's effectiveness.The results showed that the high-voltage DC conversion system and control strategy were both valid and reliable.Each flying capacitor voltage inside the converter remains stable,with a voltage deviation below 10%.The imbalance of output current across multiple converters is less than 5%,and the system demonstrated fast dynamic response.This system can be broadly applied to high-reliability required equipment in deep-sea environments,such as underwater vehicles.

关 键 词：直流变换系统 遥控水下机器人 多电平 均压控制 并联控制 

分 类 号：TM461[电气工程—电器]