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Amiri, H., Arab Markadeh, G., Mahdian, N.. (1397). Voltage Control and Load Sharing in a DC Islanded Microgrid Based on Disturbance Observer. فناوری آموزش, 7(1), 1-10. doi: 10.22061/jecei.2019.5471.225
H. Amiri; G. Arab Markadeh; N. Mahdian. "Voltage Control and Load Sharing in a DC Islanded Microgrid Based on Disturbance Observer". فناوری آموزش, 7, 1, 1397, 1-10. doi: 10.22061/jecei.2019.5471.225
Amiri, H., Arab Markadeh, G., Mahdian, N.. (1397). 'Voltage Control and Load Sharing in a DC Islanded Microgrid Based on Disturbance Observer', فناوری آموزش, 7(1), pp. 1-10. doi: 10.22061/jecei.2019.5471.225
Amiri, H., Arab Markadeh, G., Mahdian, N.. Voltage Control and Load Sharing in a DC Islanded Microgrid Based on Disturbance Observer. فناوری آموزش, 1397; 7(1): 1-10. doi: 10.22061/jecei.2019.5471.225

Voltage Control and Load Sharing in a DC Islanded Microgrid Based on Disturbance Observer

Journal of Electrical and Computer Engineering Innovations (JECEI)
مقاله 2، دوره 7، شماره 1، فروردین 2019، صفحه 1-10    اصل مقاله (1.56 M)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22061/jecei.2019.5471.225
نویسندگان
H. Amiri1؛ G. Arab Markadeh* 1؛ N. Mahdian2
1Department of Engineering, Shahrekord University, Shahrekord, Iran
2Control Department of Electrical Engineering Faculty, Shahid Rajaee Teacher Training University, Tehran, Iran
تاریخ دریافت: 23 بهمن 1396،  تاریخ بازنگری: 01 اردیبهشت 1397،  تاریخ پذیرش: 12 مرداد 1397 
چکیده
Background and Objectives: Increasing DC loads along with DC nature of distributed energy resources (DERs) raises interest to DC microgrids. Conventional droop/non-droop power-sharing in microgrids suffers from load dependent voltage deviation, slow transient response, and requires the parameters of the loads, system and DERs connection status.
Methods: In this paper, a new nonlinear decentralized back-stepping control strategy for voltage control and load sharing of DC islanded microgrids is proposed. The proposed method is robust against the load variations and uncertainty in microgrid parameters and has excellent dynamic and steady-state performance under different operating conditions. The major purpose of the proposed controller is to improve the transient performance of MG with load variations and constant power loads (CPLs). The local controller regulates the terminal voltage of DC-DC converter regarding the local quantities without needs to additional data of other system components.
Results: For simplicity, the proposed method is simulated with PSIM software on a DC microgrid with two DGs. Different scenarios are studied to present the performance of the proposed method under different operating conditions.
Conclusion: The results indicate the capability of the proposed method for voltage control and load sharing in DC microgrids.
کلیدواژه‌ها
DC Microgrids؛ Decentralized control؛ Disturbance observer؛ Load sharing؛ CPL
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