Phasor Analytical Model of Non-isolated DC/DC Converter Based on Modular Multilevel Converter for DC Transmission Grids

作     者：A.Jamshidi Far D.Jovcic 

作者机构：School of EngineeringUniversity of AberdeenAberdeenUK 

出 版 物：《Journal of Modern Power Systems and Clean Energy》 (现代电力系统与清洁能源学报（英文）)

年 卷 期：2023年第11卷第2期

页      面：611-621页

核心收录：

学科分类：080801[工学-电机与电器] 080802[工学-电力系统及其自动化] 0808[工学-电气工程] 08[工学] 

主　　题：High-voltage direct current(HVDC)transmission modular multilevel converter(MMC) non-isolated DC/DC converter phasor modelling 

摘      要：Non-isolated DC/DC converter based on modular multilevel converter(MMC)technology is expected to play an important role in future DC transmission *** paper presents a phasor analytical model for this new family of converters which is suitable for a range of studies like DC grid power flow or DC/DC parametric *** 30th-order phasor model is derived in 3 coordinate frames:zero sequence(DC),fundamental frequency(dq),and double frequency(d2q2).The second-harmonic current suppression control is included as an ***,an estimation of the required control signals is presented,and a closed-loop model is developed which facilitates direct calculation of all variables and fast parametric *** accuracy of the proposed models is verified against a detailed PSCAD model for a wide range of *** studies illustrate the importance of the second-harmonic components on the model ***,the impact of the converter parameters on the performance is studied,and a basic eigenvalue stability analysis is given.