Improved State-Feedback Control for Current Source Converter of SMES

Abstract:

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Current source converter (CSC) can control power transfer between superconducting coil and the AC power system, which is the key component of superconducting magnetic energy storage (SMES). This paper presents an improved state-feedback control for CSC of SMES. Adopting the discretization method, the design of decoupled state-feedback control system is simple and straight. To overcome the drawbacks of the discretization method and improve the control system dynamics, the effect of the control time delay is considered. Furthermore, by selecting the current error vector and the output voltage error vector as the additional state variables, a linear state feedback loop is added to the control system to achieve the feature of deadbeat. The steady state performance and dynamic response are investigated. MATLAB simulation is performed to evaluate the performance of the proposed control method.

Info:

Periodical:

Advanced Materials Research (Volumes 512-515)

Edited by:

Nanqi Ren, Lam Kin Che, Bo Jin, Renjie Dong and Haiquan Su

Pages:

1049-1054

DOI:

10.4028/www.scientific.net/AMR.512-515.1049

Citation:

S. P. Zhou et al., "Improved State-Feedback Control for Current Source Converter of SMES", Advanced Materials Research, Vols. 512-515, pp. 1049-1054, 2012

Online since:

May 2012

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Price:

$38.00

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