Performance of STATCOM-ES in Mitigating SSR

2017 ◽  
Vol 8 (4) ◽  
pp. 1822 ◽  
Author(s):  
Mala R.C ◽  
Nagesh Prabhu ◽  
Gururaja Rao H.V
Keyword(s):  
Energy Storage ◽  
Voltage Regulation ◽  
Storage Device ◽  
Energy Storage Device ◽  
Static Synchronous Compensator ◽  
Facts Controllers ◽  
Torque Analysis ◽  
Bus Voltage ◽  
Storage Technologies ◽  
The Impact

One of the advanced power applications using energy storage is the integration of energy storage technologies with VSC-based FACTS controllers. With the support of energy storage device, FACTS controllers will have the ability to exchange active power or energy with the ac network in steady state. This paper discusses the impact of Static Synchronous Compensator incorporating energy storage device (STATCOM-ES) on subsynchronous resonance (SSR). It also proposes the design of an auxiliary SSR damping controller (SSDC) for STATCOM-ES to damp the subsynchronous oscillations which the system is undergoing because of a series capacitor in the transmission system. The system under consideration is IEEE FBM which is modified to incorporate STATCOM-ES at the electrical midpoint. The investigation of SSR characteristics when a STATCOM - ES operating in bus voltage regulation mode is carried out by eigenvalue and damping torque analysis. Transient analysis based on the nonlinear model is also performed to validate the results obtained by conventional methods.

scholarly journals Improved Dynamic Voltage Regulation in a Droop Controlled DC Nanogrid Employing Independently Controlled Battery and Supercapacitor Units

2018 ◽  
Vol 8 (9) ◽  
pp. 1525
Author(s):  
Ahmad M. A. Malkawi ◽  
Luiz A. C. Lopes
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Voltage Regulation ◽  
Potential Contribution ◽  
Pass Filter ◽  
Power Sources ◽  
Dynamic Voltage ◽  
Dc Bus ◽  
Bus Voltage ◽  
The Impact

DC bus voltage signaling (DBS) and droop control are frequently employed in DC nano and microgrids with distributed energy resources (DERs) operating in a decentralized way. This approach is effective in enforcing the desired contributions of power sources and energy storage systems (ESSs) in steady-state conditions. The use of supercapacitors (SCs) along with batteries in a hybrid energy storage system (HESS) can mitigate the impact of high and fast current variations on the losses and lifetime of the battery units. However, by controlling the HESS as a single unit, one forfeits the potential contribution of the SC and its high power capabilities to dynamically improve voltage regulation in a DC nanogrid. This paper discusses an approach where the SC interface is controlled independently from the battery interface, with a small droop factor and a high pass filter (HPF), to produce high and short current pulses and smooth DC bus voltage variations due to sudden power imbalances in the DC nanogrid. Experimental results are presented to show that, unlike in a conventional HESS, the SC unit can be used to improve the dynamic voltage regulation of the DC nanogrid and, indirectly, mitigate the high and fast current variations in the battery.

Performance of the Elevator Inverter with the Super Capacitor Energy Storage

2012 ◽  
Vol 220-223 ◽  
pp. 478-481
Author(s):  
Xiao Jie Zhou ◽  
Yi Ruan
Keyword(s):  
Energy Storage ◽  
Power System ◽  
Distribution System ◽  
Regenerative Braking ◽  
Storage Device ◽  
Electricity Distribution ◽  
Energy Storage Device ◽  
Super Capacitor ◽  
Energy Feedback ◽  
Bus Voltage

The paper presents a super capacitor energy storage device to recycle the power with regenerative braking which the elevator inverter generates. During the running of the elevator, the fluctuation of DC bus voltage is greater, this will impact on grid greatly, especially on energy feedback. It will disturb user electricity distribution system and endanger the operation of power system. Through switching control of the Bi-directional DC/DC converter, the converter can control charge and discharge of the super capacitor. When the elevator inverter generates a power with regenerative braking, the power energy is charged to the super capacitor. it discharges the energy power when the elevator is accelerated or load is added to the elevator. Experimental results carried out on a 10-kW elevator inverter are presented.

Modeling and Simulation for Super Capacitor Braking Energy Recovery Process of Micro EV

2011 ◽  
Vol 383-390 ◽  
pp. 7390-7395
Author(s):  
Jin Yu Qu ◽  
Li Yan Liang
Keyword(s):  
Energy Storage ◽  
Electric Vehicle ◽  
Energy Recovery ◽  
Discharge Rate ◽  
Recovery Process ◽  
Storage Device ◽  
Energy Storage Device ◽  
Super Capacitor ◽  
The Impact ◽  
Braking Energy Recovery

Super-capacitor is suitable as braking energy storage device for electric vehicle because of its high charge and discharge rate, long life, simple structure and reliable performance advantages. When driving motor of the electric vehicles runs on regenerative electric power state, it can not only provide braking force, but also charge to the energy storage device to recover the kinetic energy, thus endurance mileage of electric vehicle can be extended considerably. In this paper, braking energy recovery model was built by using the Matlab/Simulink software, and whole vehicle model based on automobile theory, the motor efficiency model and super-capacitor model were mainly included. Meanwhile some researches were made on the simulation, and the impact of the super-capacitor on the braking energy recovery was analyzed.

scholarly journals Impact of Storage Devices with Renewable Integrated Distribution Network for Power Loss Minimization

2021 ◽  
Vol 10 (3) ◽  
pp. 180-192
Author(s):  
Bharat Singh ◽  
Satyaveer Singh Rawat
Keyword(s):  
Energy Storage ◽  
Power Loss ◽  
Distribution Network ◽  
Test System ◽  
Storage Device ◽  
Energy Storage Device ◽  
Loss Minimization ◽  
Battery Energy Storage ◽  
Battery Energy ◽  
The Impact

The intermittent behaviour of renewable energy generation has become an essential issue for power deficiency in the distribution network. The high penetration of wind and solar became the primary task for the optimal size of energy storage to support the power mismatch. In the present work, the impact of the energy storage device with distribution generation (DGs) have been determined in a renewable integrated distribution system for power loss minimization. The main contribution of this paper is: (i) optimal location of DGs and battery are obtained by solving single and multi-objective functions. (ii) Determination of DG and battery size for minimization of power loss and system cost. (iii) Impact of battery energy storage device on loss profile and total cost of the system. The impact of day load variation has been considered in the study. The results have been obtained for IEEE-33 bus test system using a hybrid GAMS and particle swarm optimization (PSO) algorithm. The power loss is reduced to 47.60% with single DG and battery energy storage (BES). In addition, the power loss is reduced to 59.285% with two DGs and BES. The simulation results of the test system have been compared with other existing results.

Dual Hybrid Energy Storage Device with a Battery–Electrochemical Capacitor Hybrid Cathode and a Battery-Type Anode

2021 ◽  
Author(s):  
Bincy Lathakumary Vijayan ◽  
Amina Yasin ◽  
Izan Izwan Misnon ◽  
Gopinathan M. Anilkumar ◽  
Fathalla Hamed ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Capacitor ◽  
Storage Device ◽  
Energy Storage Device ◽  
Hybrid Energy ◽  
Hybrid Energy Storage

scholarly journals Ionic Liquid Electrolytes for Electrochemical Energy Storage Devices

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4000
Author(s):  
Eunhwan Kim ◽  
Juyeon Han ◽  
Seokgyu Ryu ◽  
Youngkyu Choi ◽  
Jeeyoung Yoo
Keyword(s):  
Ionic Liquid ◽  
Energy Storage ◽  
Lithium Ion ◽  
Electrochemical Energy Storage ◽  
Storage Device ◽  
Energy Storage Device ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Storage Ability ◽  
Electrochemical Energy

For decades, improvements in electrolytes and electrodes have driven the development of electrochemical energy storage devices. Generally, electrodes and electrolytes should not be developed separately due to the importance of the interaction at their interface. The energy storage ability and safety of energy storage devices are in fact determined by the arrangement of ions and electrons between the electrode and the electrolyte. In this paper, the physicochemical and electrochemical properties of lithium-ion batteries and supercapacitors using ionic liquids (ILs) as an electrolyte are reviewed. Additionally, the energy storage device ILs developed over the last decade are introduced.

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