An improved fault analysis algorithm for unbalanced multi-phase power distribution systems
- Mississippi State Univ., Mississippi State, MS (United States). Dept. of Electrical and Computer Engineering
- Auburn Univ., AL (United States). Dept. of Electrical Engineering
The results of an improved method for fault calculations in unbalanced multi-phase power distribution systems containing non-utility generators and large induction motor loads are presented in this paper. The method utilizes a combined time- and frequency-domain analysis approach to produce results that are superior to those obtained in classical fault analysis without demanding the large increase in computer time associated with complete time-domain solutions. Sources and loads can be represented by either classical frequency-domain models or detailed differential equation models. The potentially unbalanced power distribution system is represented by an admittance matrix formed using a linear graph-based application of ac circuit theory. The time-domain differential equation source and load models are interfaced with the frequency-domain distribution system model using time series analyses to estimate equivalent voltage and current phasors from discrete data sets.
- OSTI ID:
- 7230476
- Journal Information:
- IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Vol. 9:3; ISSN 0885-8977
- Country of Publication:
- United States
- Language:
- English
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