1.新型电力系统运行与控制全国重点实验室(清华大学电机系),北京 100084
2.北京四方继保自动化股份有限公司,北京 100085
[ "谢小荣1975-,男,博士,教授研究方向:电力系统稳定分析与控制、柔性输配电系统等E-mail:xiexr@tsinghua.edu.cn" ]
[ "刘树(通信作者)1981-,男,硕士,正高级工程师研究方向:电力电子及直流输电技术E-mail:liushu@sf-auto.com" ]
[ "郑通1992-,男,博士,工程师研究方向:多电平电力电子技术E-mail:zhengtong0327@163.com" ]
收稿:2024-02-02,
修回:2024-03-25,
纸质出版:2024-05-30
移动端阅览
谢小荣,刘树,郑通,等.大容量高压级联储能系统分型融合控制方法[J].新型电力系统,2024,02(2):116-125.
XIE Xiaorong,LIU Shu,ZHENG Tong,et al.Type-merged Control Scheme with Grid-forming and Grid-following Capabilities for High-voltage Large-capacity Battery Energy Storage System with Cascade Topology[J].New Type Power Systems,2024,02(02):116-125.
谢小荣,刘树,郑通,等.大容量高压级联储能系统分型融合控制方法[J].新型电力系统,2024,02(2):116-125. DOI: 10.20121/j.2097-2784.ntps.240010.
XIE Xiaorong,LIU Shu,ZHENG Tong,et al.Type-merged Control Scheme with Grid-forming and Grid-following Capabilities for High-voltage Large-capacity Battery Energy Storage System with Cascade Topology[J].New Type Power Systems,2024,02(02):116-125. DOI: 10.20121/j.2097-2784.ntps.240010.
:储能的规模化应用为可再生能源高占比的新型电力系统提供重要支撑。高压级联储能系统将电池布置于级联H桥模块直流侧,是提高储能设备单机容量的有效手段。储能变流器控制方式包括跟网型控制和构网型控制两类,其中跟网型控制功率响应快速,但在弱网中易振荡失稳;构网型控制具有主动支撑能力,但存在强网适应性问题。该文提出了分型融合控制方法,实现了跟网特性与构网特性的柔性融合和灵活调节,提高了高压级联储能系统的电网强度适应性。通过仿真分析验证了所提控制方法的实用性与有效性。
2
The large-scale application of energy storage can provide important support for the high proportion of renewable energy in the new power system. The high-voltage battery storage system with cascade topology distributes batteries on the DC side of each H bridge
which is an effective way to increase energy storage capacity. The control of the power conversion system can be categorized as the grid following control (GFL) and the grid forming control (GFM). The GFL has the fast power response capability but weak grid instability risk
while the GFM has the active grid support capability but strong grid adaptability issue. This paper proposes a type-merged control method to improve the grid strength adaptability of the high-voltage large-capacity battery energy storage systems
where the flexible integration and adjustment of GFL and GFM characteristics are achieved. Simulation analysis shows the practicality and effectiveness of the proposed control method.
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