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Optimal LC compensators for nonlinear loads with uncertain nonsinusoidal source and load characteristics

Journal Article · · IEEE Trans. Power Syst.; (United States)
DOI:https://doi.org/10.1109/59.32454· OSTI ID:6271810
; ; ;
A method is presented for finding the optimum fixed LC combination for power factor compensation of nonlinear loads where both source voltage and load current harmonics, as well as source and load impedances are represented as randomly time-varying quantities. The distribution characteristics of these random variables at a supply bus can be experimentally determined by using a microcomputer-based parameter estimator. The LC combination is selected because pure capacitors alone would not sufficiently correct the power factor. The optimization results are such that for any given utility discount factor, the optimal LC compensator corresponding to maximum average discount and minimum compensator cost is determined. If maximum power factor is of utmost concern, the optimal LC combination corresponding to maximum average power factor is obtained for any given compensator cost. Laboratory tests show the optimization algorithm and the parameter estimator to be very efficient and accurate.
Research Organization:
Dept. of Electrical and Computer Engineering, Louisiana State Univ., Baton Rouge, LA (US)
OSTI ID:
6271810
Journal Information:
IEEE Trans. Power Syst.; (United States), Journal Name: IEEE Trans. Power Syst.; (United States) Vol. 4:1; ISSN ITPSE
Country of Publication:
United States
Language:
English

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Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200104 -- Fossil-Fueled Power Plants-- Components
29 ENERGY PLANNING, POLICY, AND ECONOMY
296000* -- Energy Planning & Policy-- Electric Power
99 GENERAL AND MISCELLANEOUS
990220 -- Computers
Computerized Models
& Computer Programs-- (1987-1989)
ALGORITHMS
CAPACITORS
COMPUTERS
CURRENTS
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
HARMONICS
LOAD MANAGEMENT
MANAGEMENT
MATHEMATICAL LOGIC
MICROELECTRONIC CIRCUITS
MICROPROCESSORS
NONLINEAR PROBLEMS
OPTIMIZATION
OSCILLATIONS
PARAMETRIC ANALYSIS