A method for finding a pair of multiple load flow solutions in bulk power systems

Journal Article · Tue May 01 04:00:00 EDT 1990 · IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (USA)

DOI:https://doi.org/10.1109/59.54569· OSTI ID:6978141

Iba, K; Suzuki, H ^[1]; Egawa, M; Watanabe, T ^[2]

---

1. Mitsubishi Electric Corp., Tokyo (Japan)
2. Tokyo Electric Power Co., Inc. (Japan)

This paper presents anew method for finding a pair of multiple load flow solutions that are closely located to each other. Because load flow problems are expressed as sets of nonlinear simultaneous equations, they have no unique solution. A pair of solutions is related with voltage instabilities in power systems. The authors discovered that the convergent characteristic of load flow calculation by the Newton--Raphson method in rectangular coordinates has a unique linearity. They propose a new method for solving a pair of near solutions in bulk power systems.

• OSTI ID: 6978141
• Journal Information: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (USA), Journal Name: IEEE Transactions on Power Systems (Institute of Electrical and Electronics Engineers); (USA) Vol. 5:2; ISSN 0885-8950; ISSN ITPSE
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240100* -- Power Systems-- (1990-)
29 ENERGY PLANNING, POLICY, AND ECONOMY
296000 -- Energy Planning & Policy-- Electric Power
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
CALCULATION METHODS
COMPUTER CALCULATIONS
ELECTRICAL TRANSIENTS
ENERGY SYSTEMS
INTERCONNECTED POWER SYSTEMS
LOAD MANAGEMENT
MANAGEMENT
NONLINEAR PROBLEMS
POWER SYSTEMS
TRANSIENTS
VOLTAGE DROP