An Improved Adaptive Nonlinear Droop Control Method in DC Microgrid

2019 ◽  
Author(s):  
Yaoyao Zhang ◽  
Maodong Tang ◽  
Xiaohui Qu ◽  
Wu Chen
Keyword(s):  
Control Method ◽  
Droop Control ◽  
Dc Microgrid

A novel droop control method based on virtual frequency in DC microgrid

2020 ◽  
Vol 119 ◽  
pp. 105946 ◽  
Author(s):  
Yancheng Liu ◽  
Xuzhou Zhuang ◽  
Qinjin Zhang ◽  
Muhammad Arslan ◽  
Haohao Guo
Keyword(s):  
Control Method ◽  
Droop Control ◽  
Dc Microgrid

scholarly journals Multiagent Based Distributed Control with Time-Oriented SoC Balancing Method for DC Microgrid

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2793 ◽  
Author(s):  
Tao Wu ◽  
Yanghong Xia ◽  
Liang Wang ◽  
Wei Wei
Keyword(s):  
Multiagent System ◽  
Control Method ◽  
Voltage Regulation ◽  
Control Voltage ◽  
Droop Control ◽  
Secondary Control ◽  
Dc Microgrid ◽  
Global Dynamic ◽  
Charging Mode ◽  
Balance Charge

Based on the droop control, voltage regulation at the secondary control is required to eliminate the deviation of the average voltage across the microgrid. Meanwhile, to prevent any of energy storage (ESs) from over-charging or over-discharging, State-of-Charge (SoC) balancing should be added in the secondary control. This paper proposes a distributed secondary control in the DC microgrid based on the multiagent system (MAS). This controller consists of voltage regulation and time-oriented SoC balancing. In voltage regulation, a PI controller adjusts the droop parameters according to the discrepancy between the average voltage and the reference voltage. In SoC balancing, controller operates in charging mode or discharging mode according to changes of the global average SoC. Being different from the conventional method, the time-oriented SoC balancing method is designed to balance charge/discharge time rather than to balance SoC directly. Thus, SoCs reach a consensus only at the last moment when all ES nodes charge or discharge completely. Furthermore, characteristics, global dynamic model, and steady-state analysis of the proposed control method are studied. Finally, MATLAB/Simulink simulations are performed to verify the effectiveness of the proposed control.

scholarly journals Research on fuzzy PID droop Control method for DC microgrid in island mode

2021 ◽  
Vol 2010 (1) ◽  
pp. 012193
Author(s):  
Qianru Wang ◽  
Caixia Wang ◽  
Ji-peng Gu
Keyword(s):  
Control Method ◽  
Droop Control ◽  
Fuzzy Pid ◽  
Dc Microgrid
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