An Improved Droop Control for DC Microgrid Based on Fuzzy Logic Algorithm - Details

author：

Xie, Hongbiao (Xie, Hongbiao.) ^[1] | Cai, Fenghuang (Cai, Fenghuang.) ^[2] (Scholars：蔡逢煌) | Jiang, Jiahui (Jiang, Jiahui.) ^[3] | Chen, Weidong (Chen, Weidong.) ^[4]

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Abstract：

To　solve　the　problem　of　traditional　droop　control　in　a　DC　microgrid　cannot　meet　both　current　equalization　and　voltage　regulation　requirements　in　load　distribution　due　to　the　presence　of　line　impedance.　This　work　proposes　a　fuzzy　logic-based　improved　droop　control　scheme　and　designs　two　fuzzy　controllers　for　the　current　compensation　and　bus　voltage　compensation,　respectively.　To　improve　current　equalization　accuracy　and　DC　bus　voltage　stability,　voltage　compensator　and　current　compensator　based　on　fuzzy　logic　algorithm　are　designed.　Finally,　a　simulation　platform　of　the　DC　microgrid　with　three　phase-shifted　full-bridge　DC/DC　converters　as　the　main　circuit　topology　is　built　in　MATLAB/Simulink　to　verify　the　feasibility　and　effectiveness　of　the　proposed　control　scheme.　©　2022　IEEE.

Keyword：

Computer circuits DC-DC converters Electric power distribution Equalizers Fuzzy logic MATLAB Microgrids Simulation platform Voltage regulators

Community：

[ 1 ] [Xie, Hongbiao]The College of Electrical Engineering and Automation, Fuzhou University, China
[ 2 ] [Cai, Fenghuang]The College of Electrical Engineering and Automation, Fuzhou University, China
[ 3 ] [Jiang, Jiahui]The College of Electrical Engineering, Qingdao University, China
[ 4 ] [Chen, Weidong]The College of Electrical Engineering and Automation, Fuzhou University, China