scholarly journals Droop control method in power converter system for balancing state-of-charge of energy storage units in EV

2019 ◽  
Vol 2019 (18) ◽  
pp. 4764-4769
Author(s):  
Priyanka Jangir ◽  
Venu Sangwan ◽  
Rajesh Kumar ◽  
Akshay Kumar Rathore
Keyword(s):  
Energy Storage ◽  
Control Method ◽  
Power Converter ◽  
State Of Charge ◽  
Droop Control ◽  
Storage Units

scholarly journals Adaptive Droop Control in Energy Storage Systems for Battery Protection Microgrid Applications

2020 ◽  
Vol 6 (5) ◽  
pp. 122-130
Author(s):  
Gottipati Madhuri ◽  
Challa Ramaiah
Keyword(s):  
Energy Source ◽  
Energy Storage ◽  
Control Systems ◽  
Storage Systems ◽  
State Of Charge ◽  
Alternative Strategy ◽  
Power Balance ◽  
Droop Control ◽  
Terminal Voltage ◽  
Battery Bank

This paper proposes an alternative strategy to control the generated power within an isolated ac microgrid with distributed RES. The proposal is to control the terminal voltage of the existing battery banks below or equal its maximum allowable value. This is done by limiting the amount of power that each energy source can generate at each instant. The microgrid frequency is used to characterize the state of charge of the battery bank and quantify to the converters’ control systems how much power they need or can generate to maintain under control the internal power balance of the microgrid. The control of the battery banks’ terminal voltage implies indirectly the control of their SOC.

scholarly journals Direct voltage control for stand-alone wind energy conversion systems with energy storage

2021 ◽  
Author(s):  
Wei Huang
Keyword(s):  
Energy Storage ◽  
Power System ◽  
Control Method ◽  
Voltage Control ◽  
Power Converter ◽  
Induction Generator ◽  
Storage Device ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Direct Voltage

A control method for the stand-alone wind power generation system with induction generator and energy storage devices is proposed in this thesis. A fixed-speed self-excited induction generator is directly connected to the standalone power system, while battery powered energy storage devices are employed to balance the system power flow. A DC-AC power converter is connected between the energy storage device and the standalone power system, which maintains the voltage and frequency constant. Direct voltage control with current limits is developed for the converter with dynamic fast response. Mathematical models are developed to analysis the system performance as well as to design the lead-lag regulators in the control system. The proposed system is verified in the simulation and experiment.

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