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- Title
Improvements of numerical stability of electromagnetic transient simulation by use of phase-domain synchronous machine models.
- Authors
Cao, Xianglin; Kurita, Atsushi; Mitsuma, Hitoshi; Tada, Yasuyuki; Okamoto, Hiroshi
- Abstract
The present paper proposes the use of a phase-domain (abc frame) generator model in electromagnetic transient analysis instead of the conventional dq0-domain generator model in order to improve numerical stability. The drawback of the conventional dq0-domain machine model is that the prediction of a number of electrical variables as well as machine speed is needed in order to interface the circuit of a machine model with the rest of the power system network, and the prediction of these variables leads to numerical instability. In contrast, prediction of electrical variables is not needed in the proposed phase-domain model. In this paper, the phase-domain machine model is developed. The proposed model is validated by comparisons with an existing EMTP type-59 machine model. The paper makes it clear that numerically stable solutions are obtained by using the proposed model even in cases where numerical instabilities occur when the existing type-59 model is used. © 1999 Scripta Technica, Electr Eng Jpn, 128(3): 53–62, 1999
- Subjects
ELECTRIC power systems; SIMULATION methods &; models; ELECTRIC generators; ROTORS; ELECTRIC inductance; ELECTRICAL engineering
- Publication
Electrical Engineering in Japan, 1999, Vol 128, Issue 3, p53
- ISSN
0424-7760
- Publication type
Article
- DOI
10.1002/(SICI)1520-6416(199908)128:3<53::AID-EEJ7>3.0.CO;2-G