ADDITIONAL APPLICATIONS OF DEMAND SIDE MANAGEMENT TECHNIQUES IN POWER SYSTEMS INTEGRATED WITH DISTRIBUTED GENERATION

摘要

Demand side management is a technique used to control customers' loads in stand-alone power systems in order to maintain a balance between generation and electricity demand of those systems [1]. By maintaining this balance, demand side management can maintain the stability of those power systems, hence reducing the number of power interruptions to customers. It is also used in grid-connected power systems in order to reduce peak demands [2, 3, 4], hence protecting the systems from overloading. An investigation was carried out to identify further roles that demand side management can play in the integration of distributed generation in grid-connected power systems. Four potential roles were identified. 1. Solving voltage rise problems at power systems integrated with a large number of renewable generators; 2. Minimising the export of renewable power to the grid for small generating plants; 3. Minimising discrepancies between actual and contractual demand volumes under NETA; 4. As a tool for electricity service companies (ESCOs) responsible for electricity generation and supply. This paper discusses the details of two identified roles: voltage rise and export minimisation.