Power Systems Security in a Deregulated Market - Ancillary Service Market

Exhibitor: AU YONG Hin

Supervisor: Zhao Dong

Research Group: Complex and Intelligent Systems

Industry Sector: Energy and Utilities

Traditionally Public utilities were granted areas where they were to provide service. Within these service areas, public utilities were protected from competition from enterprises offering the same services.

In recent decade, vertically integrated power industry is undergoing restructuring and deregulation, which results into smaller and competing entity. Deregulation is a fairly new paradigm in the electric power industry. And just as in the case of other industries where it has been introduced, the goal of deregulation is to enhance competition and bring consumers new choices and economic benefits. The process has, obviously, necessitated reformulation of established models of power systems operation and control activities. Similarly, issues such as systems reliability, control, security and power quality in this new environment have come in for scrutiny and debate.

This thesis presents a methodology to optimize the dispatching of spinning reserve with power systems constraints. A new market-clearing algorithm is developed to minimize the overall cost while maintaining the system security. The thesis also extends the methodology to calculate the price of the spinning reserve to meet its corresponding load over a 24 hours period.

Thesis Document (PDF)