适用于多工况优化设计与重复仿真的MMC快速仿真平台

针对PSCAD/EMTDC下MMC仿真模型仿真速度慢，进行多工况优化设计与重复仿真效率低等问题，基于Matlab以M语言构建了MMC的快速仿真平台。该快速仿真平台的电气部分采用Dommel算法求解，控制部分采用梯形积分法求解。阐述了电气部分各主要元件的Dommel算法建模方法，提出了电气部分的求解方法以及电气部分和控制部分的联立求解方法。通过与基于PSCAD/EMTDC的MMC详细电磁暂态程序对比，仿真结果验证了基于Matlab的M语言MMC仿真平台的正确性。所开发的MMC快速仿真平台可以作为MMC阀损计算，过电压计算等需要多工况优化设计与重复仿真的内核仿真程序。

Fast Simulation Platform of MMC Suitable for Multi-case Optimization Design and Repetitive Simulation

Aiming at the problem of the low simulation speed of MMC on PSCAD/EMTDC platform and the low efficiency of optimization design and repetitive simulations under different operating conditions, a Matlab-based fast simulation platform of MMC is constructed using M-language, which is solved using the Dommel algorithm and the trapezoidal integration method respectively for the electrical part and the control part. The modelling methods of the main electrical components with the Dommel algorithm are introduced, and the solving method for the electrical parts and the unified solving methods for the electrical part and control part are proposed. The simulation result of the proposed platform in this paper is compared with that of the PSCAD/EMTDC-based MMC modelling program, which has verified the correctness of the new fast simulation platform. The proposed simulation platform can be used as the core driver for MMC study such as the power loss calculation and overvoltage calculation, where repetitive simulations are required under different operating conditions.