该文针对可再生能源制氢系统,提出一种涵盖电力电子变压器、电压源型变换器、DC/DC变换器等单元的协同运行控制方法。首先建立基于低压多端直流的可再生能源制氢系统典型结构,分析不同类型电力电子变换单元的本地控制策略;然后,构建系统整体运行模式,并针对各模式提出多电力电子变换单元的控制策略配合与切换方法。最后通过Matlab/Simulink搭建可再生能源制氢系统仿真模型,对提出的协同运行控制方法进行分析验证。
Abstract
The paper proposes a coordinated operation control method of a renewable energy/hydrogen production system covering power electronic transformers,voltage source converters,and DC/DC converters. First,a typical structure of the system based on multi-terminal DC is established,and the local control strategies of different types of power electronic converters are analyzed. Then,the operation mode of the system is constructed,and the method of control strategy coordination and switching among the multiple power electronic converters are proposed for each mode. Finally,a system simulation model is built based on Matlab/Simulink,and the proposed method is analyzed and verified.
关键词
可再生能源 /
功率控制 /
制氢 /
多端直流 /
运行
Key words
renewable energy /
power control /
hydrogen production /
MTDC system /
operation
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基金
国家科技部重点研发专项（2017YFE0112600）; 中科院前沿科学重点研究项目（QYZDB-SSW-JSC024）
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