数字物理混合仿真结合了动态物理模拟仿真和实时数字仿真的优点，是进行复杂电力系统研究分析的有效手段；接口算法是保证其闭环稳定性和仿真精确性的关键。文中给出了数字物理混合仿真系统构建的总体结构；对已有接口算法的基本原理、建模方法、存在的问题及其改进方法进行了详细的分析；通过仿真验证了理想变压器模型法、输电线路模型法与阻尼阻抗法的稳定性和精确性性能，并对各类算法的适用领域进行了总结。最后，针对数字物理混合仿真接口算法存在的问题与不足，提出了今后的发展方向和需要解决的关键技术问题。%Power hardware‐in‐the‐loop ( PHIL) simulation , combined with the advantages of dynamic physical simulation and real‐time digital simulation , is effective for the study and analysis of complex power systems . Interface algorithm is the key to guarantee closed‐loop stability and accuracy of the simulation system . The overall structure of PHIL simulation system is presented , then the basic principle , modeling methods , existing problems and improved methods of the existing interface algorithms are analyzed in detail . The stability and accuracy of ideal transformer model interface , transmission line model interface and damping impedance method interface are verified by simulation . The application fields of various algorithms are summarized . Finally , the key technical issues to be solved and the future development direction are put forward for the interface algorithms of PHIL simulation .
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