Kaedah megawatt mile menggunakan pendekatan berasaskan faktor kuasa untuk caj perkhidmatan penghantaran

Abstract

Deregulation of the electricity energy market has changed many aspects of utility industry, including transmission pricing. The main problem in transmission pricing is the determination of transmission cost according to actual power flow and the load power factor. In fact, poor power factor will cause a decrease in electrical power delivery capability. Therefore, it needs an accurate method to determine the transmission cost according to the actual power flow ang load characteristic that can satisfy costumer of transmission line. This thesis proposes a novel method through an improved Megawatt Mile (MW-Mile) method using the power factor-based approach for pricing the transmission services. In the proposed method, the power factor correction coefficient is introduced as a price parameter to determine the additional or reduction of transmission cost due to the difference between the average load power factor and the reference power factor set by a regulator. This method is incorporated with the distribution factor method to trace the power flow in the network. The proposed method as tested on the IEEE-14 bus system and the IEEE 30-bus system to illustrate the effectiveness of the proposed method in allocating the transmission pricing to a user in a fair manner. The results have indicated that there were differences in the cost of transmission utilization which in reality, depends on the power factor of the load. For power factor reference is 0.9, the user with an average power factor of 0.85 will be charged at 5.88% higher, while the user with power factor of 0.95, the payment will be decrease by 5.2% as compared to the existing methods. The advantage of the proposed method lies in the incentive given to the users due to power factor improvement. This method is also able to solve the problem of the reactive power charges and the transmission loss share for the users.