Teaching fundamentals of measurement- based load modelling approach through practical examples

摘要

The paper presents a computer program designated for teaching load modelling fundamentals, answering an increasing need for education of electrical engineers in this area. The program is based on data obtained during numerous field tests that encompass voltage changes using on-load tap changers. In this way students apply a measurement-based load modelling approach and analyse load behaviour from many practical examples during voltage changes on different days of the week and over different time periods. The program allows future engineers to become familiar with some important fundamental issues of load modelling such as: identification of load model parameters, selection of proper load model, determination of representative load characteristics and adequacy of the usage of an approximate load model.