集成有源阻尼器功能的变流器容量协调策略A capacity coordination strategy for converters integrated with active damping functionality
张可嘉,丁珑,杨虎,杨金明,陈旺
ZHANG Kejia,DING Long,YANG Hu,YANG Jinming,CHEN Wang
摘要(Abstract):
有源阻尼器装置通过构造虚拟电阻,可以同时解决多台变流器的谐振问题。为解决常规并网功能和有源阻尼器功能的容量协调问题,设计基于傅里叶变换的虚拟电阻自适应控制策略,进行有源阻尼器功能的容量调节。针对变流器的容量需求之和超过总容量限制的问题设计容量协调策略,通过建立变流器谐振治理目标函数和额定功率约束条件,构造拉格朗日函数求解谐振抑制权重,实现变流器容量的协调分配。实验表明,所提的容量协调策略能根据变流器运行需求有效分配并网功能和有源阻尼器功能的容量。
The active damping device mitigates resonance among multiple converters by creating a virtual resistance.To address the capacity coordination challenge between conventional grid-connected functionality and active damping functionality, an adaptive control strategy for virtual resistance based on Fourier transform to regulate the capacity using active damping functionality. Given that the total capacity demands of converters exceed their overall capacity limit, a capacity coordination strategy is formulated. This strategy defines an objective function for resonance mitigation and imposes a constraint on rated power, leading to the development of a Lagrangian function that determines the resonance suppression weights, thereby achieving coordinated allocation of converter capacity. Experimental results demonstrate that the proposed strategy effectively distributes capacity between the grid-connected function and the active damping function in line with the operational demands of the converters.
关键词(KeyWords):
有源阻尼器;变流器;容量协调;虚拟电阻
active damper;converter;capacity coordination;virtual resistance
基金项目(Foundation): 江苏省高等学校基础科学(自然科学)研究项目(22KJB470013);; 江苏祥泰电力实业有限公司科技项目(XTYF23002)
作者(Author):
张可嘉,丁珑,杨虎,杨金明,陈旺
ZHANG Kejia,DING Long,YANG Hu,YANG Jinming,CHEN Wang
DOI: 10.19585/j.zjdl.202501010
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