Design of HTS Magnets for a 600 kJ SMES

Kim, Woo-Seok; Kwak, Sang-Yeop; Lee, Ji-Kwang; Choi, Kyeongdal; Jung, Hyun–Kyo; Seong, K.C.; Hahn, Song–Yop

doi:10.1109/tasc.2005.864244

Cited by 58 publications

(9 citation statements)

References 7 publications

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“…The conditions 3-5 were to limit the size of magnet, and the last condition was the length of one roll of 4-ply HTS wire to wind one DPC. Design of the 600 kJ SMES magnet was carried out by AutoTuning Niching Genetic Algorithm [3]. As a result, we obtained design parameters for two magnets.…”

Section: Design Of Hts Magnetmentioning

confidence: 99%

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Stress Analysis of HTS Magnet for a 600 kJ SMES

Park¹,

Kwak

Kim³

et al. 2007

IEEE Trans. Appl. Supercond.

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Auto Tuning Niching Genetic Algorithm was used to design optimal HTS magnets for the 600 kJ class SMES system under several design constraint conditions. Constraint conditions were operation loss of magnet (less than 2 W), inductance of magnet (less than 24 H), the number of Double Pancake Coils (about 10 DPCs), the number of turns of DPC (less than 300 turns), outer diameter of DPC (close to 800 mm) and total length of HTS wire in a DPC (less than 500 m). As a result of optimum design, we obtained design parameters for the 600 kJ SMES magnet according to two operating currents, 360 A and 370 A. However, even though the HTS magnet was designed optimally in respect to the electromagnetics, consideration of mechanical integrity due to the stress by Lorentz force must not be neglected for the stable operation of the SMES system. Therefore, we developed a program, through the Finite Element Method (FEM), for stress analysis due to Lorentz force in operation of the SMES system. In this paper, the stresses (radial and hoop stress) imposed on the designed HTS magnets were calculated by the program, and the results of stress analysis were discussed.

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Section: Design Of Hts Magnetmentioning

confidence: 99%

“…The problem is more serious in large scale SMES systems. Therefore, it is important to consider the mechanical forces on conductors of superconducting coils caused by this electromagnetic force [3].…”

Section: A Numerical Formulationmentioning

confidence: 99%

Stress Analysis of HTS Magnet for a 600 kJ SMES

Park¹,

Kwak

Kim³

et al. 2007

IEEE Trans. Appl. Supercond.

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“…Its direction can be translated from a full bridge IGBT switching. It is also able to control the force and velocity of the moving part directly by controlling the current and inductance of the coils appropriately [5]- [6].…”

Section: Fig 1 Basic Structure Of Emfamentioning

confidence: 99%

Dynamic Characteristic Analysis of Electric Actuator for 1 kV/3.2 kA Air Circuit Breaker Based on the Three-link Structure

Lee¹,

Kang²,

Kwak³

et al. 2011

Journal of Electrical Engineering and Technology

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-In the present paper, a new type of electrical actuator, an electromagnetic force driving actuator (EMFA), applicable to air circuit breaker is developed and analyzed. Transient analysis is performed to obtain the dynamic characteristics of EMFA. The distribution of static magnetic flux is obtained using the finite element method. The coupled problems of electrics and mechanics governing equations are solved using the time-difference method. According to the interception rate of each contactor, investigation of the contactor spring load condition is conducted and applied to the threelink system. Comparisons of the dynamic characteristics of the three-link simulation and experimental data are performed.

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“…In comparison to other ESSs, SMES has a high cyclic efficiency that exceeds 90%, large power density, quick response time and unlimited charging and discharging cycles [18,19]. Recent developments of HTS SMES [20][21][22][23][24][25][26][27][28][29][30][31] in different countries are shown in Fig. 1a.…”

Section: Introductionmentioning

confidence: 99%

Superconducting magnetic energy storage for stabilizing grid integrated with wind power generation systems

Mukherjee

Rao

2018

J. Mod. Power Syst. Clean Energy

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Due to interconnection of various renewable energies and adaptive technologies, voltage quality and frequency stability of modern power systems are becoming erratic. Superconducting magnetic energy storage (SMES), for its dynamic characteristic, is very efficient for rapid exchange of electrical power with grid during small and large disturbances to address those instabilities. In addition, SMES plays an important role in integrating renewable sources such as wind generators to power grid by controlling output power of wind plant and improving the stability of power system. Efficient application of SMES in various power system operations depends on the proper location in the power system, exact energy and power ratings and appropriate controllers. In this paper, an effort is given to explain SMES device and its controllability to mitigate the stability of power grid integrated with wind power generation systems.

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Design of HTS Magnets for a 600 kJ SMES

Cited by 58 publications

References 7 publications

Stress Analysis of HTS Magnet for a 600 kJ SMES

Stress Analysis of HTS Magnet for a 600 kJ SMES

Dynamic Characteristic Analysis of Electric Actuator for 1 kV/3.2 kA Air Circuit Breaker Based on the Three-link Structure

Superconducting magnetic energy storage for stabilizing grid integrated with wind power generation systems

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