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   Design and simulation of a zero crossing VSC based phase synchronous inverter for microgrid system  
   
نویسنده rahman t. ,hasan m.k. ,ahmad m.m. ,hossain a.k.m.z.
منبع journal of telecommunication, electronic and computer engineering - 2017 - دوره : 9 - شماره : 3-10 - صفحه:119 -124
چکیده    A microgrid is a system which consists of the transmission line and loads capable of operating in parallel with the national grid and distributed power sources such as power generation,storage and demand management. however,to connect the wind,solar and electrostatic power generation system together with microgrid,a phase synchronisation issue arises. for the electrostatic system,generated dc voltage needs to be converted into ac to connect with the transformer-less microgrid system. this process inherently produces very low output current and also degrades the phase synchronization of the system. to counter these issues,a zero-crossing voltage source controller based phase synchronous inverter system has been designed and implemented in this paper. in addition,an active lcl filter has been designed to reduce the high harmonic distortion. moreover,to verify the result,matlab2014a software has been used. in this design,input dc voltage of 10kv,switching frequency of 1.65 khz,grid frequency of 50hz and balanced grid loads of star configuration (00,1200,and 2400 degree) are considered. the simulated result has shown that inverter inversion efficiency is 96.8% and phase angle error is only 3.50 degrees.
کلیدواژه Lcl filter; Microgrid; Psi; Vsc; Zero crossing
آدرس department of electrical and computer engineering,international islamic university malaysia,kuala lumpur, Malaysia, department of electrical and electronics engineering,university malaysia sarawak (unimas), Malaysia, department of electrical and electronics engineering,university malaysia sarawak (unimas), Malaysia, department of electrical and computer engineering,international islamic university malaysia,kuala lumpur, Malaysia
 
     
   
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