制氢变流器弱电网并网稳定性分析
STABILITY STUDY OF WATER ELECTROLYSIS HYDROGEN PRODUCTION CONVERTER CONNECTED TO WEAK GRID
井延伟 1梅春晓 1谭建鑫 1张雷 2张一博3
作者信息
- 1. 新天绿色能源股份有限公司,石家庄 050001
- 2. 北京雷动智创科技有限公司,北京 100192
- 3. 中国矿业大学(北京)机电与信息工程学院,北京 100083
- 折叠
摘要
该文针对弱电网下大规模可再生能源制氢系统稳定性进行研究.基于制氢电解槽的负载特性建立基于三电平拓扑结构的制氢变流器模型以及对应的控制策略.并基于系统模型建立制氢系统在弱电网下的小信号模型,以分析大规模电解水制氢系统的稳定性与相关因素的关系,包括锁相环带宽、交流电流环带宽、电网强度等.搭建2MW制氢变流器的弱电网模拟实验平台,验证弱电网条件下不同控制参数对制氢变流器稳定性的影响,得到了与理论分析一致的结果.
Abstract
Hydrogen production via wind energy and photovoltaics represents an emerging research frontier aimed at integrating novel energy consumption methodologies with hydrogen generation.The presence of a renewable weak grid contributes to system instability.The stability of large-scale renewable energy hydrogen production systems interconnected with a weak grid is focused.The modeling and control of a hydrogen production converter employing a three-level topology is established.The system's stability is influenced by factors such as phase-locked loop(PLL)parameters,the bandwidth of the AC current loop,and LCL filter parameters.To ascertain the impact of various control parameters on stability,a weak grid platform featuring a 2 MW hydrogen production converter was developed in a laboratory setting.The empirical findings corroborate the theoretical analysis.
关键词
可再生能源/制氢/新能源/变流器/系统稳定性/控制器参数Key words
renewable energy/hydrogen production/renewable energy resources/converter/system stability/controller's parameters引用本文复制引用
出版年
2024
NETL
NSTL
万方数据