28-07-2012, 09:47 AM
Automatic Generation Control of an Interconnected Two AreaHydro-thermal System
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Automatic Generation Control
IEEE has defined Automatic Generation Control (AGC) as “the regulation of the power output of electrical generators within a prescribed area in response to change in system frequency.
The AGC system is responsible for frequency control and power interchange, as well as economic dispatch.
Objectives of Automatic Generation control
Primary objective: To balance the System Generation against load and losses so that the desired frequency and power interchange with neighboring system are maintained.
Secondary Objective: To distribute the required change in generation among units to minimize operating costs.
Regulation & Deregulation
Regulation: Regulation means that the government has set down laws and rules that put limits on and define how a particular industry or company can operate.
Deregulation: Deregulation in power sector is a process by which government remove or reduce restriction on power industry and invite private sector to invest in the power.
Conclusion
AGC in deregulated environment acquires a fundamental role to enable power exchanges and to provide better conditions for the electricity trading.
It is treated as an ancillary service essential for maintaining the electrical system reliability at an adequate level.
AGC issue as an ancillary service represents an important role to maintain an acceptable level of efficiency, quality, and reliability in a deregulated power system environment.