Application of superconducting magnet energy storage to improve power system dynamic performance

Mitani, Yasunori; Tsuji, Kiichiro; Murakami, Yohei

doi:10.1109/59.192948

Cited by 171 publications

(59 citation statements)

References 12 publications

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“…Superconducting Magnetic Energy Storage (SMES), Battery Energy Storage System (BESS), Flywheel Energy Storage (FES), and Pumped Storage Hydro Power Station (PSHPS) are commonly used ESS in power system stability control [1][2][3]. To investigate and validate the capability of those ESS in one of the important applications of stability control -to suppress power system oscillations, various tools and techniques have been used, such as the modal analysis based on linearized models for SMES [4][5][6][7][8], modeling power electronics into power systems for BESS [9][10][11], simulation and laboratory experiment for FES [12] as well as application of advanced control theory for BESS [13,14]. Research results obtained so far indicate that ESS control can significantly enhance power system stability by damping system oscillations effectively, which has been confirmed by field applications of BESS and PSHPS reported in [15] and [16] respectively.…”

Section: Introductionmentioning

confidence: 99%

Robustness of damping control implemented by Energy Storage Systems installed in power systems

Wei

Wang

Cheng

et al. 2011

International Journal of Electrical Power & Energy Systems

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a b s t r a c tAn Energy Storage System (ESS) installed in a power system can effectively damp power system oscillations through controlling exchange of either active or reactive power between the ESS and power system. This paper investigates the robustness of damping control implemented by the ESS to the variations of power system operating conditions. It proposes a new analytical method based on the well-known equal-area criterion and small-signal stability analysis. By using the proposed method, it is concluded in the paper that damping control implemented by the ESS through controlling its active power exchange with the power system is robust to the changes of power system operating conditions. While if the ESS damping control is realized by controlling its reactive power exchange with the power system, effectiveness of damping control changes with variations of power system operating condition. In the paper, an example of power system installed with a battery ESS (BESS) is presented. Simulation results confirm the analytical conclusions made in the paper about the robustness of ESS damping control. Laboratory experiment of a physical power system installed with a 35 kJ/7 kW Superconducting Magnetic Energy Storage (SMES) was carried out to evaluate theoretical study. Results are given in the paper, which demonstrate that effectiveness of SMES damping control realized through regulating active power is robust to changes of load conditions of the physical power system.

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Section: Introductionmentioning

confidence: 99%

Robustness of damping control implemented by Energy Storage Systems installed in power systems

Wei

Wang

Cheng

et al. 2011

International Journal of Electrical Power & Energy Systems

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“…On the other hand, various control techniques are utilized to design the SMES controllers, which generate orders for the power conditioning system (PCS) of the SMES device. The conventional proportional (P) controller and proportional-integral (PI) controller are adopted for the SMES device in several experimental projects described in [8,13]. These references mainly focus on the experimental results and give few details about the controller design.…”

Section: Introductionmentioning

confidence: 99%

“…Most of them design the SMES controllers from the viewpoint of control theory and pay little attention to the action mechanism of SMES. Besides, the impact of SMES location and the system operating point on SMES performance is investigated through experiments [13]; however, a detailed explanation is not given, and the characteristics of SMES are not taken into consideration.…”

Section: Introductionmentioning

confidence: 99%

Mechanism Analysis and Experimental Validation of Employing Superconducting Magnetic Energy Storage to Enhance Power System Stability

et al. 2015

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This paper investigates the mechanism analysis and the experimental validation of employing superconducting magnetic energy storage (SMES) to enhance power system stability. The models of the SMES device and the single-machine infinite-bus (SMIB) system with SMES are deduced. Based on the model of the SMIB system with SMES, the action mechanism of SMES on a generator is analyzed. The analysis takes the impact of SMES location and the system operating point into consideration, as well. Based on the mechanism analysis, the P-controller and Q-controller are designed utilizing the phase compensation method to improve the damping of the SMIB system. The influence of factors, such as SMES location, transmission system reactance, the dynamic characteristics of SMES and the system operating point, on the damping improvement of SMES, is investigated through root locus analysis. The simulation results of the SMIB test system verify the analysis conclusions and controller design method. The laboratory results of the 150-kJ/100-kW high-temperature SMES (HT-SMES) device validate that the SMES device can effectively enhance the damping, as well as the transient stability of the power system. OPEN ACCESSEnergies 2015, 8 657

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“…Thus SMES applications have been considered as new options to solve a variety of transmission, generation, and distribution system problems including improvement of voltage and angular stability, increasing power transfer capability of existing grids, damping subsynchronous oscillations, damping inter-area oscillations, load leveling etc. [7][8]. The SMES system is combined with the voltage-source IGBT converter is capable of effectively controlling and near instantaneously injecting both active and reactive power into the power system.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of Wind Generator by Using STATCOM/SMES

Sheikh

Razzak

2009

J. Sci. Res.

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In this work, the STATCOM/SMES system with a voltage-source IGBT converter is modeled as a controllable energy source. The objective of the proposed STATCOM/SMES topology is to provide both active and reactive power, which can significantly decrease the voltage and power fluctuations of grid connected fixed speed wind generators. One major problem in wind generator output power smoothing is setting of the reference output power. Constant output power reference is not a good choice because there can be some cases where wind speed is very low and then sufficient power cannot be obtained. In that case, energy storage device can solve the problem but large energy capacity may be needed. To generate output power reference, a Simple Moving Average (SMA) technique is used which corresponds to the energy storage capacity. Thus the capacity of SMES can be small (50% of wind farm capacity). Real wind speed data is used in the simulation analyses, which validates the effectiveness of the proposed control strategy.

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Application of superconducting magnet energy storage to improve power system dynamic performance

Cited by 171 publications

References 12 publications

Robustness of damping control implemented by Energy Storage Systems installed in power systems

Robustness of damping control implemented by Energy Storage Systems installed in power systems

Mechanism Analysis and Experimental Validation of Employing Superconducting Magnetic Energy Storage to Enhance Power System Stability

Stabilization of Wind Generator by Using STATCOM/SMES

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