Application of thyristor-controlled phase shifters to minimize real power losses and augment stability of power systems
- Dept. of Electrical Engineering, Univ. of Pittsburgh, Pittsburgh, PA (US)
Thyristor controlled phase shifters can be applied to power systems to re-distribute line power flows. A method is presented in this paper to determine the optimal number of phase shifters and their locations in the network to minimize line real power losses for a power system in steady state operating conditions. Phase shifters also provide series compensation to augment stability. They primarily change damping torques of machines to improve the machine's dynamic behavior. From the electrical distance point of view, the phase shifter at a machine terminal gives the greatest change of electrical distance between that machine and the disturbance point. Therefore the best location of a phase shifter for a machine is at its terminals. Comparisons are made to show that the phase shifter can significantly increase damping as compared with machines having no regulation and machines having exciter-augmented stability.
- OSTI ID:
- 6459010
- Journal Information:
- IEEE Trans. Power Electronics; (United States), Vol. 3:4
- Country of Publication:
- United States
- Language:
- English
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