Trends in Microgrid Droop Control and the Power Sharing Problem

2022 ◽  
Author(s):  
Kim Diefrei Remboski Felisberto ◽  
Paulo Thiago de Godoy ◽  
Diogo Marujo ◽  
Adriano Batista de Almeida ◽  
Rodrigo de Barros Iscuissati
Keyword(s):  
Power Sharing ◽  
Droop Control

Adaptive Droop Control of VSC-MTDC System for Frequency Support and Power Sharing

2018 ◽  
Vol 33 (2) ◽  
pp. 1264-1274 ◽  
Author(s):  
Weiyu Wang ◽  
Yong Li ◽  
Yijia Cao ◽  
Ulf Hager ◽  
Christian Rehtanz
Keyword(s):  
Power Sharing ◽  
Droop Control

scholarly journals An Improved Droop Control Strategy for Reactive Power Sharing in Islanded Microgrid

2015 ◽  
Vol 30 (6) ◽  
pp. 3133-3141 ◽  
Author(s):  
Hua Han ◽  
Yao Liu ◽  
Yao Sun ◽  
Mei Su ◽  
Josep M. Guerrero
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Power Sharing ◽  
Droop Control ◽  
Islanded Microgrid

scholarly journals New adaptive droop control with combined line impedance estimation method for parallel inverters

2016 ◽  
Vol 19 (4) ◽  
pp. 45-64
Author(s):  
Phuong Minh Le ◽  
Duy Vo Duc Hoang ◽  
Hoa Thi Xuan Pham ◽  
Huy Minh Nguyen
Keyword(s):  
Kalman Filter ◽  
Control Method ◽  
Least Squares Method ◽  
Estimation Method ◽  
Load Sharing ◽  
Phase Lock Loop ◽  
Power Sharing ◽  
Voltage Source ◽  
Droop Control ◽  
Voltage Source Inverters

This paper presents a new load sharing control between paralleled three-phase inverters in an islanded-microgrid based on the line impedance estimation online by the use of the Kalman filter. We can solve the mismatch of power sharing when the line impedance changes due to the temperature and frequency, significant differences of line parameters and requirements of Plug-and-Play mode of inverters connected to the microgrid. Moreover, the paper also presents a new Droop control method working with the line impedance which is different from the Droop traditional algorithm when the line impedance is assumed pure resistance R or pure inductance X. In the paper, the line impedance estimation for parallel inverters uses the least squares method combined with Kalman filter. In addition, secondary control loops are designed to restore the voltage amplitude and frequency of the microgrid by using a combined nominal value SOGI-PLL with generalized integral block and phase lock loop to exactly monitor the voltage magnitude and frequency phase at common PCC. Control model has been simulated in Matlab/Simulink with three voltage source inverters connected in parallel for different ratios of the power sharing. The simulation results have shown the accuracy of the proposed control method. Therefore, the proposed adaptive droop control method based on line impedance estimation can be an alternative one for load sharing control in islanded microgrids.

Improved reactive power sharing with adaptive droop control in islanded microgrids

2016 ◽  
Author(s):  
Javad Fattahi ◽  
Joan E. Haysom ◽  
John Cook ◽  
Karin Hinzer ◽  
Henry Schriemer
Keyword(s):  
Reactive Power ◽  
Power Sharing ◽  
Droop Control

Reactive Power Sharing in Islanded Microgrids Using Adaptive Voltage Droop Control

2015 ◽  
Vol 6 (6) ◽  
pp. 3052-3060 ◽  
Author(s):  
Hisham Mahmood ◽  
Dennis Michaelson ◽  
Jin Jiang
Keyword(s):  
Reactive Power ◽  
Power Sharing ◽  
Droop Control
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