电力建设2025，Vol.46Issue(11)：71-82,12.DOI:10.12204/j.issn.1000-7229.2025.11.007
基于扰动程度自适应切换的LCC-HVDC数字-物理混合仿真DIM接口算法
Adaptive Switching Algorithm for Digital Physical Hybrid Simulation DIM Interface of LCC-HVDC Based on Disturbance Degree
摘要
Abstract
[Objective]A digital-physical hybrid simulation can accurately simulate the actual operating characteristics of a high-voltage direct-current(HVDC)transmission system.However,an interface module between the digital and physical subsystems is crucial for system stability and precise simulations.Because of the differences in direct current(DC)system characteristics under various conditions,the existing algorithms are not uniformly applicable.This paper presents a damping impedance interface algorithm based on adaptive switching and degree of disturbance.[Methods]First,a compensation impedance-switching method and criteria are proposed based on impedance and performance characteristics.Subsequently,the calculation methods for the equivalent impedance in the steady state and compensation impedance in the transient state are presented.Finally,a hybrid simulation model is built and the interface characteristics are verified.[Results]The results achieved higher stability than the ideal transformer method and a relative error of less than 1.5%in the steady state,indicating good accuracy.[Conclusions]The proposed adaptive switching method significantly expands the applicability range of the damping impedance approach,offering a novel solution for the digital-physical hybrid simulation of HVDC transmission systems.关键词
高压直流输电/数字-物理混合仿真/阻尼阻抗法/自适应切换/补偿阻抗匹配Key words
high voltage direct current transmission/digital physical hybrid simulation/damping impedance method/adaptive switching/compensation impedance matching分类
信息技术与安全科学引用本文复制引用
甘效罗,王拓,杨明城,赫羽朋,王尉,辛业春,李国庆..基于扰动程度自适应切换的LCC-HVDC数字-物理混合仿真DIM接口算法[J].电力建设,2025,46(11):71-82,12.基金项目
This work is supported by National Key Research and Development Program of China(No.2021YFB2400900).国家重点研发计划项目(2021YFB2400900) （No.2021YFB2400900）
