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Coordinated stabilizing control for large‐scale interconnected power systems, by superconducting magnetic energy storage unit and power system stabilizers
Author(s) -
Mitani Yasunori,
Tsuji Kiichiro,
Murakami Yoshishige
Publication year - 1993
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.4391130401
Subject(s) - electric power system , superconducting magnetic energy storage , control theory (sociology) , swing , energy storage , power control , power (physics) , engineering , robustness (evolution) , control engineering , computer science , electrical engineering , control (management) , electromagnetic coil , mechanical engineering , biochemistry , physics , chemistry , superconducting magnet , quantum mechanics , artificial intelligence , gene
The purpose of large‐scale power system interconnection is to achieve extremely economical and reliable power generation and transmission. It has established the present power systems of high quality. On the other hand, in the large power systems with complex configuration, an undamped power swing with low frequency caused by the synchronous power between interconnected systems tends to occur as well as an undamped power swing caused by the synchronous power of specific generators. Several coordinated stabilizing control schemes for the power systems by sets of power system stabilizers (PSSs) have been investigated so far. PSS is very effective for the stabilization of power swing among a few specific generators because the function of PSS is achieved by the voltage control using the generator field winding circuit. However, it seems that PSSs do not have sufficient ability to stabilize the power swings between interconnected systems. In this paper, the superconducting magnetic energy storage (SMES) which is significantly effective for the power swings between interconnected systems is introduced and a coordinated power system stabilizing control by SMES and PSSs is proposed. The advantages of the proposed control scheme are: 1) high efficiency of the controller by the distribution of functions; 2) independency of the control design for PSS and SMES; and 3) robustness of the controller, and so on.