A new technique for loss reduction using compensating capacitors applied to distribution systems with varying load condition

Journal Article · Fri Apr 01 04:00:00 EST 1994 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.296262· OSTI ID:7108361

Abdel-Salam, T S; Hackam, R ^[1]; Chikhani, A Y ^[2]

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1. Univ. of Windsor, Ontario (Canada). Electrical Engineering Dept.
2. Royal Military Coll., Kingston, Ontario (Canada). Electrical and Computer Engineering Dept. Univ. of Windsor, Ontario (Canada)

A new method based on a heuristic technique for reactive loss reduction in distribution networks is presented. This method allocates capacitors to certain nodes (sensitive nodes) which are selected by first identifying the branch which has the largest losses due to reactive power. Then, the node therein, which has the largest reactive power is selected. The capacitor rating is determined by differentiating the system losses with respect to the load connected to that node. The compensating capacitors are placed at these optimal locations with appropriate VAR ratings to achieve maximum benefits in dollar savings. The variation of the load during the year is considered. The capital and installation costs of the capacitors are also taken into account. This method is applied to a 38 feeder distribution system of 27.6 kV, 560 MVA of the city of Windsor, Ontario, resulting in annual saving of about CAN $145,000 after amortizing the capital and installation costs of applying the compensating capacitors, and using a figure for the cost of energy of 1.986 cents per kWh.

• OSTI ID: 7108361
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 9:2; ISSN 0885-8977; ISSN ITPDE5
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
CAPACITORS
ELECTRICAL EQUIPMENT
ENERGY EXPENSES
ENERGY LOSSES
EQUIPMENT
LOSSES
POWER DISTRIBUTION SYSTEMS
POWER FACTOR
POWER LOSSES