scholarly journals Distributed Reactive Power Control and SOC Sharing Method for Battery Energy Storage System in Microgrids

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 60707-60720 ◽  
Author(s):  
Wenfa Kang ◽  
Minyou Chen ◽  
Bo Li ◽  
Feixiong Chen ◽  
Wei Lai ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Control ◽  
Reactive Power ◽  
Storage System ◽  
Energy Storage System ◽  
Battery Energy Storage System ◽  
Reactive Power Control ◽  
Battery Energy Storage ◽  
Battery Energy

Three-Phase Grid Connected Bi-Directional Charging System to Control Active and Reactive Power with Harmonic Compensation

2019 ◽  
Vol 20 (2) ◽  
Author(s):  
Maheswar Prasad Behera ◽  
Pravat Kumar Ray
Keyword(s):  
Energy Storage ◽  
Reactive Power ◽  
Storage System ◽  
Energy Storage System ◽  
Control Technique ◽  
Battery Energy Storage System ◽  
Harmonic Compensation ◽  
Battery Energy Storage ◽  
Three Phase ◽  
Battery Energy

Abstract The feasibility of integration of Battery Energy Storage System (BESS) with a three-phase AC grid is being investigated in this paper. A converter is an inevitable part of a modern DC generating system. The link between the grid and the BESS is established through a Voltage Source Converter (VSC). Therefore, the converter can be utilized to dispatch the DC generated power to the connected AC grid and at the same time provides reactive power compensation and load harmonic compensation throughout the day. The DC bus voltage control of the converter system is carried out to keep the power factor always at unity, irrespective of the charging state of the battery source. The charging and discharging of the connected battery energy storage system are carried out through a bidirectional DC-DC converter. Adaptive hysteresis band current control (AHCC) scheme is employed to produce the switching signals. Finally, its performance is compared with the traditional hysteresis band control technique.

Low Voltage Ride-through for Doubly Fed Induction Generator Using Battery-Storage System

2016 ◽  
Vol 7 (2) ◽  
pp. 481
Author(s):  
D.V.N. Ananth ◽  
G.V. Nagesh Kumar
Keyword(s):  
Energy Storage ◽  
Reactive Power ◽  
Low Voltage ◽  
Storage System ◽  
Energy Storage System ◽  
Control Technique ◽  
Voltage Profile ◽  
Battery Energy Storage System ◽  
Battery Energy Storage ◽  
Battery Energy

In this paper, enhanced field oriented control technique (EFOC) was adopted in Rotor Side Control (RSC) of DFIG converter for improved response during severe faults. The work is intended to damp pulsations in electromagnetic torque, improve voltage mitigation and limit surge currents and to enhance the operation of DFIG during voltage sags. The converter topology uses a battery energy storage system with capacitor storage system to further enhance operation of DFIG during faults. The battery and capacitor system in coordination provide additional real and reactive power support during faults and nearly constant voltage profile at stator and rotor terminals and limit overcurrents. For EFOC technique, rotor flux reference changes its value from synchronous speed to zero during fault for injecting current at the rotor slip frequency. In this process DC-Offset component of flux is controlled, decomposition during overvoltage faults. The offset decomposition of flux will be oscillatory in a conventional FOC, whereas in EFOC it will damp quickly. A comparison is made with proposed methodology with battery energy storage system and a conventional system. Later the system performance with under voltage of 50% the rated voltage with fault at PCC during 0.8 to 1.2 seconds is analysed using simulation studies.

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