带蓄电池储能的STATCOM控制策略及应用研究
摘 要
随着新能源并网规模的不断扩大，电力系统稳定性面临新的挑战，STATCOM（静止同步补偿器）作为重要的柔性交流输电系统装置，在改善电能质量和维持电压稳定方面发挥着关键作用。然而传统STATCOM在应对长时间电压波动时存在功率支撑能力不足的问题，为此提出带蓄电池储能的STATCOM控制策略。该研究旨在通过引入储能元件提升STATCOM对电网电压波动的响应速度和调节范围，增强其动态无功补偿性能。基于双闭环控制结构设计了包含直流侧电压外环与电流内环的控制器，并采用自适应下垂控制实现STATCOM与蓄电池储能系统的协调运行。仿真结果表明，所提控制策略可有效抑制电压暂降和短时中断现象，显著提高系统的动态响应特性。
关键词：STATCOM；蓄电池储能；电压稳定
ABSTRACT
With the continuous expansion of the scale of new energy grid connection, the stability of the power system is facing new challenges. STATCOM (stationary synchronous compensator), as an important flexible AC transmission system device, plays a key role in improving the power quality and maintaining the voltage stability. However, the traditional STATCOM has the problem of insufficient power support ability when dealing with the long-time voltage fluctuations, so the STATCOM control strategy with battery energy storage is put forward. The study aims to improve the response speed and regulation range of STATCOM by introducing energy storage components to power grid voltage fluctuations, and enhance its dynamic reactive power compensation performance. Based on the double closed-loop control structure, the controller including the DC side voltage outer loop and the current inner loop is designed, and the adaptive droop control is adopted to realize the coordinated operation of STATCOM and battery energy storage system. The simulation results show that the proposed control strategy can effectively suppress the voltage drop and short interruption, and significantly improve the dynamic response characteristics of the system.
KEY WORDS：STATCOM; Battery energy storage; voltage stability
目 录
摘 要 I
ABSTRACT II
1 绪论 1
1.1 研究背景及意义 1
1.2 国内外研究现状 1
1.3 研究方法与技术路线 2
2 带蓄电池储能的STATCOM系统建模 2
2.1 STATCOM工作原理分析 2
2.2 蓄电池储能系统特性 3
2.3 联合系统的数学模型 4
3 控制策略设计与优化 4
3.1 控制目标与约束条件 4
3.2 主控制器设计方法 5
3.3 优化算法应用研究 6
4 应用场景与案例分析 7
4.1 典型应用场景探讨 7
4.2 实际案例效果评估 8
4.3 系统性能改进措施 8
结论 10
致 谢 11
参考文献 12
摘 要
随着新能源并网规模的不断扩大，电力系统稳定性面临新的挑战，STATCOM（静止同步补偿器）作为重要的柔性交流输电系统装置，在改善电能质量和维持电压稳定方面发挥着关键作用。然而传统STATCOM在应对长时间电压波动时存在功率支撑能力不足的问题，为此提出带蓄电池储能的STATCOM控制策略。该研究旨在通过引入储能元件提升STATCOM对电网电压波动的响应速度和调节范围，增强其动态无功补偿性能。基于双闭环控制结构设计了包含直流侧电压外环与电流内环的控制器，并采用自适应下垂控制实现STATCOM与蓄电池储能系统的协调运行。仿真结果表明，所提控制策略可有效抑制电压暂降和短时中断现象，显著提高系统的动态响应特性。
关键词：STATCOM；蓄电池储能；电压稳定
ABSTRACT
With the continuous expansion of the scale of new energy grid connection, the stability of the power system is facing new challenges. STATCOM (stationary synchronous compensator), as an important flexible AC transmission system device, plays a key role in improving the power quality and maintaining the voltage stability. However, the traditional STATCOM has the problem of insufficient power support ability when dealing with the long-time voltage fluctuations, so the STATCOM control strategy with battery energy storage is put forward. The study aims to improve the response speed and regulation range of STATCOM by introducing energy storage components to power grid voltage fluctuations, and enhance its dynamic reactive power compensation performance. Based on the double closed-loop control structure, the controller including the DC side voltage outer loop and the current inner loop is designed, and the adaptive droop control is adopted to realize the coordinated operation of STATCOM and battery energy storage system. The simulation results show that the proposed control strategy can effectively suppress the voltage drop and short interruption, and significantly improve the dynamic response characteristics of the system.
KEY WORDS：STATCOM; Battery energy storage; voltage stability
目 录
摘 要 I
ABSTRACT II
1 绪论 1
1.1 研究背景及意义 1
1.2 国内外研究现状 1
1.3 研究方法与技术路线 2
2 带蓄电池储能的STATCOM系统建模 2
2.1 STATCOM工作原理分析 2
2.2 蓄电池储能系统特性 3
2.3 联合系统的数学模型 4
3 控制策略设计与优化 4
3.1 控制目标与约束条件 4
3.2 主控制器设计方法 5
3.3 优化算法应用研究 6
4 应用场景与案例分析 7
4.1 典型应用场景探讨 7
4.2 实际案例效果评估 8
4.3 系统性能改进措施 8
结论 10
致 谢 11
参考文献 12
