Design and Manufacture of Superconducting Generator with High-Response Excitation

IEEE Trans. Appl. Supercond.

Yamada

2002

Self Cite

Parallel running operation of 100 kVA Superconducting Generator (SCG) with high response excitation and 0.4 MJ SMES (Superconducting Magnet Energy Storage) was carried out. The exciter capacity of the high response excitation is rather large compared with that of conventional generators. The exciter controller, that is, AVR (Automatic Voltage Regulator) and PSS (Power System Stabilizer) are designed taking the exciter power change at the excitation into account to improve the system stability. The SMES can also improve the power system stability. The SMES can give the small active power modulation of sinusoidal wave to the system. The system responses due to the SMES power modulation were observed and analyzed in order to evaluate the designed control functions of AVR, PSS and SMES. Frequency characteristics of the designed control functions were obtained from on-line data of the system. The system stability of parallel running of the SCG and the SMES was evaluated by use of SMES power control.

Section: Introductionmentioning

confidence: 99%

Experimental study on system stability evaluation in parallel running of a superconducting generator and a SMES

Shirai

IEEE Trans. Appl. Supercond.

Yamada

2002

Self Cite

“…[2] In 1989, Toshiba Corporation manufactured an experimental lOOkVA SCG, whose pet name is Hesper 1. [3] After fundamental tests, by using Hesper 1 and artificial transmission lines, experiments on small-signal stability and transient stability were carried out. This paper describes scheme of excitation controls and the experimental results.…”

Section: Introductionmentioning

confidence: 99%

Experimental studies on power system stability of a superconducting generator with high response excitation

IEEE Trans. Power Syst.

Okada

Shirai

et al. 1997

Self Cite

Superconducting generators (SCG's) have many advantages such as small size, light weight, high efficiency, improvement of power system stability in steady states and s o on. SCG's with high response excitation have additional advantage of improvement of power system stability in transient states. By use of an experimental 100 kVA SCG with high response excitation whose pet name is Hesper 1, and an artificial transmission line, we carried out several experiments for power system stability. Before the experiments, we considered a block diagram for power system stability of SCG's with high response excitation, and designed automatic voltage regulators and power system stabilizer. This paper describes the above considerations and the experimental results.

Characteristics of superconducting generator at high response excitation

Electrical Engineering Japan

Tanaka

Okada

1992

Superconducting generators have many advantages, one of which is their ability to improve the stability of power systems because of their low synchronous impedances. The advantage may be increased by adoption of high‐response excitation. The first 100 kVA high‐response excitation superconducting generator has now been built. One of the problems in the design of such generators involves the characteristics of the field circuit, i.e., the field armature winding, losses in the component materials, and loss in the superconducting field winding. In this paper, a 2‐dimensional electromagnetic field analysis of field circuit characteristics is presented.