An ANFIS Approach for Real Power Transfer Allocation

Hussain Shareef,Saifulnizam Abd Khalid,Azhar Khairuddin,Mohd Wazir Mustafa

doi:10.1155/2011/414258

Abstract

This paper proposes an adaptive neurofuzzy interface system (ANFIS) approach to identify the real power transfer between generators. Based on solved load flow results, it first uses modified nodal equation method (MNE) to determine real power contribution from each generator to loads. Then the results of MNE method and load flow information are utilized to train the designed ANFIS. It also incorporated an enhanced feature extraction method called principle component analysis (PCA) to reduce the input features to the ANFIS. The 25-bus equivalent system of south Malaysia is utilized as a test system to illustrate the effectiveness of the ANFIS output compared to that of the MNE method. The ANFIS output provides promising results in terms of accuracy and computation time. Furthermore, it can be concluded that the ANFIS with enhanced feature extraction method reduces the time taken to train the ANFIS without affecting the accuracy of the results.

Highlights

The introduction of electricity privatization becomes an important issue under electric industry restructuring
A number of simulations have been carried out to demonstrate the accuracy of the developed Adaptive Neurofuzzy Inference System (ANFIS) with the same 25-bus equivalent system of south Malaysia
Results obtained from the ANFIS are indicated with lines having circles and the solid lines with cross represent the output of the MNE method

Summary

Introduction

The introduction of electricity privatization becomes an important issue under electric industry restructuring. The aim of this research is to bring transparency and open access to the transmission network. Implementing transparent rules that allocate transmission use fulfill this concept of fairness in the industry. Fairness can only be achieved by adopting a fair and transparent usage allocation methodology acceptable to all parties. In view of market operation, it is vital to know the role of individual generators and loads to transmission wires and power transfer between individual generators to loads. This is necessary for the restructured power system to operate economically, efficiently

Objectives

Results

Conclusion