Synchronous Condensing Using the Generator of Peak Load Plant

Abstract

This paper will describe how a generator of a peak load turbine, when operated as a synchronous condenser, can help improve electrical system power factor and therefore help maintain reactive power balances between sources of generation and demand points. It is particularly appropriate to use peak load plant with either industrial or aero-derivative gas turbines for synchronous condensing. By using a clutch to disconnect the turbine from the generator, losses from the turbine are avoided enabling more efficient synchronous condensing operation. Details of specific clutch designs for turbine generator synchronous condenser applications and experience at various B.C. Hydro installations are provided.

Synchronous condenser operation in Francis turbines: Effects in the runner stress and machine vibration

“…The lack or surplus of reactive power may unbalance the electrical grid endangering its stability, reliability and efficiency [3,4]. One of the solutions used nowadays to provide to the grid the necessary reactive power is to operate power generators as motors, which is known as Synchronous Condenser (SC) operation [5,6]. Thermal power plants and especially hydraulic power plants are used for this purpose [5].…”

“…One of the solutions used nowadays to provide to the grid the necessary reactive power is to operate power generators as motors, which is known as Synchronous Condenser (SC) operation [5,6]. Thermal power plants and especially hydraulic power plants are used for this purpose [5]. Thus, generating turbines are operated in air conditions rotating at the synchronous speed driven by the generator acting as a motor.…”