考虑构网型变流器自主支撑特性的共享储能协同控制策略
考虑构网型变流器自主支撑特性的共享储能协同控制策略
- 华北电力大学学报（自然科学版） 2026年53卷第1期 页码：45-56
- 作者机构：
1. 国网冀北电力科学研究院(华北电力科学研究院有限责任公司
2. 新能源电力系统全国重点实验室(华北电力大学
- 作者简介：
- 基金信息：国家电网公司总部科技项目(5419-202114240A-0-0-00)
DOI：
中图分类号： TM46;TM91-
纸质出版：2026
- 稿件说明：
移动端阅览
[1]巩宇,周子欣,黄贤淼,等.考虑构网型变流器自主支撑特性的共享储能协同控制策略[J].华北电力大学学报(自然科学版),2026,53(01):45-56.
巩宇, 周子欣, 黄贤淼, et al. 考虑构网型变流器自主支撑特性的共享储能协同控制策略[J]. 2026, 53(1): 45-56.
摘要
对共享储能系统中所包含的众多储能变流器进行构网型(grid-forming
GFM)改造或新建可以提升系统的频率稳定性，但存在能量管理系统(energy management system
EMS)与跟网(grid-following
GFL)和构网型储能变流器的协同支撑问题。针对这一问题，提出了一种考虑构网型储能变流器自主频率支撑特性和跟网型储能变流器受控调节的共享储能能量管理系统多时间尺度协同控制策略。该方法充分考虑能量管理系统与变流器主动支撑具备不同时间尺度，通过能量管理系统完成秒级的自动功率分配，实现长时间尺度的频率支撑。在储能变流器中通过构网型控制实现毫秒级短时间尺度的频率自主支撑，并将电池荷电状态差异引入虚拟惯量分配策略。最后，搭建了硬件在环测试平台，通过典型工况测试了所提方法的有效性，表明所提策略能够实现构网型储能和跟网型储能的协同频率支撑，有效减小了系统遭受扰动后的频率偏差。
Abstract
Grid-forming(GFM) retrofitting or new construction of numerous storage converters included in a shared energy storage system can improve its frequency stability. However
there exists a challenge in the synergistic support of the energy management system(EMS) with the grid-following(GFL) and grid-forming storage converters. To address this problem
a multi-timescale cooperative control strategy for a shared energy storage system's energy management system is proposed
considering the autonomous frequency support characteristics of grid-forming energy storage converters and the controlled regulation of grid-following energy storage converters. The method fully considers the different time scales of the energy management system and the active support of the converter. It enables the energy management system to perform the second-level automatic power allocation to achieve long-time scale frequency support while grid-forming control in the converters enables millisecond short-time scale frequency autonomous support
with battery state of charge differences incorporated into the virtual inertia allocation strategies. Finally
a hardware-in-the-loop test platform is constructed
and the effectiveness of the proposed method is tested under typical working conditions. The results show that the proposed strategy achieves cooperative frequency support between grid-forming energy storage and grid-following energy storage
effectively reducing the frequency deviation of the system after disturbances.
关键词
Keywords
references
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