Active and Reactive Power Control Model of Superconducting Magnetic Energy Storage (SMES) for the Improvement of Power System Stability

Ham, Wan Hyun; Hwang, Seok Won

doi:10.5370/jeet.2008.3.1.001

Cited by 12 publications

(3 citation statements)

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“…In previous research, various methods have been reported to demonstrate using SMES for enhancing and improving dynamic stability as well as to increase the system damping. A method of adapting active and reactive power of the SMES unit in a model of power transmission system, and the proof of the effectiveness of using SMES for controlling power system stability was described in [2,13,14]. In addition, using the fuzzy logic control strategy, which is another method for controlling the SMES connected to the power systems to decrease frequency oscillations and improve their transient stabilities, is reported in [15][16][17][18][19][20].…”

Section: Applications Of Smes For Increasing Power System Stabilitymentioning

confidence: 99%

Application of a superconducting magnetic energy storage unit for power systems stability improvement

Salih

Lachowicz

Bass

et al. 2014

2014 First International Conference on Green Energy ICGE 2014

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Superconducting Magnetic Energy Storage System (SMES) includes a high inductance coil acting as a constant source of current. When a SMES is connected to a power system, it has the ability to absorb both active and reactive power from the power system and it is capable to inject these powers into this system when they are needed. While the SMES coil is discharging power into the system, this injected power is controlled by changing the duty cycle of the dc-dc chopper switches and its operation modes. SMES is always associated with power conversion system consisting of two identical converters. These converters are connected by a dc link capacitor and are used in the system to change between the alternative and the direct current, which is primarily required for the SMES unit task. This paper presents an efficient system based on the SMES unit to improve the transient stability by regulating the dc link voltage during the fluctuations in voltage or frequency after disturbances in a power system or at any rapid changes in the load size. The behavior of the system is tested with three faults/events in the power system, at the power supply, and at the loads side. The transient behavior of the designed system is observed with and without the SMES unit. The results show that the SMES system increases voltage stability across the dc link significantly whenever voltage and frequency in power supply are oscillating and rapid changes in the loads and disturbances in generation system occur.

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Section: Applications Of Smes For Increasing Power System Stabilitymentioning

confidence: 99%

Application of a superconducting magnetic energy storage unit for power systems stability improvement

Salih

Lachowicz

Bass

et al. 2014

2014 First International Conference on Green Energy ICGE 2014

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“…Accordingly, SMES and CES units can act as efficient stabilizers of power oscillation modes . Several research papers addressed the SMES and CES applications in the LFC . In these papers, SMES and CES systems proved better performance than the hybrid energy storage system in the multi‐area interconnected power system.…”

Section: Introductionmentioning

confidence: 99%

Improving the grid frequency by optimal design of model predictive control with energy storage devices

Elsisi

Soliman

Aboelela

et al. 2017

Optim Control Appl Methods

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SummaryThis paper proposes the optimal design of model predictive control (MPC) with energy storage devices by the bat-inspired algorithm (BIA) as a new artificial intelligence technique. Bat-inspired algorithm-based coordinated design of MPCs with superconducting magnetic energy storage (SMES) and capacitive energy storage (CES) is proposed for load frequency control. Three-area hydrothermal interconnected power system installed with MPC and SMES is considered to carry out this study. The proposed design procedure can account for generation rate constraints and governor dead bands. Transport time delays imposed by governors, thermodynamic processes, and communication telemetry can be captured as well. In recent papers, the parameters of MPC with SMES and CES units are typically set by trial and error or by the designer's expertise. This problem is solved here by applying BIA to tune the parameters of MPC with SMES and CES units simultaneously to minimize the deviations of frequency and tie line powers against load perturbations.Simulation results are carried out to emphasize the superiority of the proposed coordinated design as compared with conventional proportional-integral controller and with BIA-based MPC without SMES and CES units. , unmeasured and measured disturbances resp; x n , y n , noise model state and output vectors resp; A n , B n , C n , D n , state-space realization of the noise measurement model; Ψ d , Ψ n , dimensionless white noise input to disturbance and noise models resp; T s , sampling period; P, M, integer prediction and control horizons resp; Q, R, Two scalars to weight both the input and error signal; N, number of the control inputs; T sim , simulation time (s)

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“…• voltage systems referred to the energy storages as supercapacitors (SES) and battery trays [17,[20][21][22][23][24][25][26][27]], • current systems for SMES energy storage type [28][29][30][31][32][33][34], In those solutions an active rectifier is connected to the grid [28], which results from the requirement of bi-directional energy flow of an energy storage, operating directly with bi-directional DC-DC converter [14]. This solution provides both powering and returning energy to the grid with unity power factor.…”

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confidence: 99%

Selected converter topologies for interfacing energy storages with power grid

Domino

Zymmer

Parchomiuk

2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The paper presents different solutions applicable in power converter systems for connecting power grids with energy storage systems such as superconducting magnetic energy storage (SMES), supercapacitor energy storage (SES) or chemical batteries. Those systems are characterized by bidirectional current flow between energy storage and power grid. Two-level converters (AC-DC and DC-AC converters) dedicated for low power energy storage compatible with 3£400 V-type power grids are proposed. High power systems are connected with 3£6 kV-type power grids via transformers that adjust voltage to the particular energy storage or directly, based on multilevel power converters (AC-DC and DC-AC) or dual active bridge (DAB) systems. Solutions ensuring power grid compatibility with several energy storage systems of the same electrical parameters as well as of different voltage-current characteristics are also proposed. Selected simulation results illustrating operation of two system topologies of 200 kW power for two-level converter and neutral point clamped (NPC) three-level converter are presented.Key words: power converter, superconducting magnetic energy storage (SMES), supercapacitor energy storage (SES), distribution system. Selected converter topologies for interfacing energy storages with power gridA. DOMINO, K. ZYMMER * , and M. PARCHOMIUK Electrotechnical Institute, 28 Pożaryskiego St., 04-703 Warsaw, Poland bility of limiting the temporary increases in power drawn from the grid during start-up of high-power equipment and operation under overload. Note that the hybrid group of energy storage systems with different current-time characteristics, described in this paper, can assure simultaneous compensation of the peak power and long overload state. The peak power is an essential parameter of the electricity tariff in industrial plants. The systems coupling power grid with energy storage can be divided into two groups:• voltage systems referred to the energy storages as supercapacitors (SES) and battery trays [17,[20][21][22][23][24][25][26][27]], • current systems for SMES energy storage type [28][29][30][31][32][33][34], In those solutions an active rectifier is connected to the grid [28], which results from the requirement of bi-directional energy flow of an energy storage, operating directly with bi-directional DC-DC converter [14]. This solution provides both powering and returning energy to the grid with unity power factor. The paper discusses selected topologies of converter systems connecting the energy storage and power grid with different rating parameters using transformers and transformer-less solutions. Converter topologies for interfacing energystorages with grid 2.1. Topology 1. The basic scheme of the arrangement is shown in Fig. 1, where superconducting choke is used as the energy storage element -SMES. The system consists of an AC-DC converter connected to the power grid and the bi-directional DC-DC converter in the form of the pulse current regulator [13]. It is also possible to use battery ...

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Active and Reactive Power Control Model of Superconducting Magnetic Energy Storage (SMES) for the Improvement of Power System Stability

Cited by 12 publications

References 65 publications

Application of a superconducting magnetic energy storage unit for power systems stability improvement

Application of a superconducting magnetic energy storage unit for power systems stability improvement

Improving the grid frequency by optimal design of model predictive control with energy storage devices

Selected converter topologies for interfacing energy storages with power grid

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