A New Malaysian Reference MV Distribution Network Models For Energy Losses/Efficiency Model And Future Network Development

Khamis, Aziah and Gan, Chin Kim and Ibrahim, Khairul Anwar and Au, Mau Teng and Yusup Lada, Musa (2019) A New Malaysian Reference MV Distribution Network Models For Energy Losses/Efficiency Model And Future Network Development. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Technical losses (TL) in distribution network is causing substantial economic and financial losses annually to utility companies.For effective mitigation measures and justify its return on investment,it is necessary to determine the level,location and source of TL in the distribution network.In a typical MV distribution network,there could be hundreds and thousands of MV feeders scattered over vast geographical areas.These MV feeders and its key parameters are never exactly the same for every feeder.The characteristics of the feeder varies significantly within the same network a utility and even more,among other network in other supply zone.Modelling each and every feeder requires tremendous amount of resources to collect data,analyze and update the network parameters which also changes periodically.To simplify analysis,MV feeders are classified into a limited number of types based on the identified key parameters.This is known as representative feeders (RF) model.In particular, these limited number of MV feeders are generic feeder models which are technically representative of the common and actual feeders found in real distribution system.Due to confidentiality,actual network information are sometimes difficult to obtain from utilities.Thus,with RF models,it is possible to build a synthetic MV distribution network which can generally used by researchers to perform various analysis,without sensitive information on the actual network.Although numerous works to develop RF has been found,none of the existing model are representative of Malaysian distribution network. There are no existing literature found which studies and establishes the generic MV feeder characteristics on the Malaysian distribution network.Case study performed on a sample MV network in Malaysia shows the total losses are found in the range between 1% and 4%, which are in reasonably accurate as they are in close agreement compared with TL calculation data obtained from TNB. The main advantage of the generic analytical approach presented in this project is its flexibility and applicability in estimating TL of a radial MV network of different sizes,configuration and supply zones.The TL estimation model could be developed into a useful tool for power system planners to evaluate TL of any MV network on a periodic basis and establish the distribution network TL trend over time.

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