Evaluation of Feasible Interlinking Converters in a Bipolar Hybrid Microgrid

作     者：Parviz Najafi Abbas Houshmand Viki Mahdi Shahparasti Parviz Najafi;Abbas Houshmand Viki;Mahdi Shahparasti

作者机构：the Department of Electrical EngineeringK.N.Toosi University of TechnologyTehranIran the Department of Electrical EngineeringPolytechnic University of CataloniaBarcelonaSpain 

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：2020年第8卷第2期

页      面：305-314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：Bipolar hybrid microgrid interlinking converter DC-link voltage balancing power loss distribution 

摘      要：A bipolar hybrid microgrid is a new topology which benefits from the advantages of both alternating current(AC)and direct current(DC)*** AC/DC converter is the key of this topology which has the following characteristics:being able to provide two equal pole voltages in DC side;complying with the standards of current quality at AC side;being able to control active and reactive power independently in AC side,and transmitting bidirectional *** this paper,two categories of power converters including single-stage and two-stage converters are proposed for this topology.A new cost-effective control strategy is added to the control of general grid-connected converter for each interlinking converter,and the control of autonomous DC-link pole voltage for both candidates is *** simulations based on the designed control strategies are conducted to validate the function of control strategies under the operation conditions of different DC *** performances of two selected interlinking converters with balanced and unbalanced DC loads are *** power quality of microgrid and total harmonic distortion(THD)analysis are demonstrated in grid-tied and islanded ***,semiconductor power loss simulations based on a closed-loop thermal network simulation are ***,the mutual effects of power loss and initial junction temperature are investigated.