The Analysis of the Differences between Electromechanical Transients Simulation and Electromagnetic Transients Simulation

• 作者: Chengjun Xia Cuiqiong Chen Haoyu Huang Kun Men
• 来源期刊: 电力能源(英文)
• 学科: 医学
• 关键词: ELECTROMAGNETIC Transients ELECTROMECHANICAL Transients SIMULATION DIFFERENCE
• 年，卷（期）: 2014,（9）
• 页码范围: 139-146
• 页数: 8页
• 分类号: R73

摘要

The paper firstly interprets the differences between electromechanical transients program BPA and electromagnetic transients program EMTDC in the field of principle, model and algorithm. Then the authors carry out the simulation based on single-machine infinite-bus system and draw some conclusions. The time consumption of the simulation using EMTDC is much longer than the simulation using BPA under the same length of time. The results of BPA are close to those of EMTDC under steady conditions. The fundamental frequency component of the EMTDC results seems closer to the BPA results than its original value, but they still away from completely consistent. In this simulation of single-machine infinite-bus system, the transient stability results of BPA and EMTDC are close, but the results of BPA are apt to be more conservative. All the conclusions above have a certain reference value to both hybrid simulation and comprehensive analysis method in the study of the AC/DC digital simulation of large power grid.