Comprehensive UPFC models for power flow calculations in practical power systems

Sheng Huei Lee; Chia Chi Chu; Ding Hsin Chang

doi:10.1109/PESS.2001.969977

Comprehensive UPFC models for power flow calculations in practical power systems

Sheng Huei Lee, Chia Chi Chu, Ding Hsin Chang

Department of Electrical Engineering

Chang Gung University

Research output: Contribution to journal › Journal Article › peer-review

12 Scopus citations

Abstract

A hybrid Unified Power-Flow Controllers (UPFCs) models for power flow calculations is developed: an ideal voltage source model is used to represent the series part while an ideal current source model is used to represent the shunt part. Static relationships among real power and reactive power transfers, series transformer and shunt transformer losses are considered in details. Equivalent relationships among our new models and existing models will also be investigated. Since only one extra state variable is included in our developed UPFC models, it can be easily incorporated into existing Newton-type power flow solvers. Even with flat start initial conditions, this new model can be easily converged within a few iterations. We have tested our new models in IEEE 300-bus power systems. Simulation results will demonstrate the efficiency and the accuracy of our proposed model.

Original language	English
Article number	8
Pages (from-to)	27-32
Number of pages	6
Journal	Proceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
Volume	1
Issue number	SUMMER
DOIs	https://doi.org/10.1109/PESS.2001.969977
State	Published - 2001

Keywords

Newton-raphson method
Power flow control
Unified power-flow controllers

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10.1109/PESS.2001.969977

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abstract = "A hybrid Unified Power-Flow Controllers (UPFCs) models for power flow calculations is developed: an ideal voltage source model is used to represent the series part while an ideal current source model is used to represent the shunt part. Static relationships among real power and reactive power transfers, series transformer and shunt transformer losses are considered in details. Equivalent relationships among our new models and existing models will also be investigated. Since only one extra state variable is included in our developed UPFC models, it can be easily incorporated into existing Newton-type power flow solvers. Even with flat start initial conditions, this new model can be easily converged within a few iterations. We have tested our new models in IEEE 300-bus power systems. Simulation results will demonstrate the efficiency and the accuracy of our proposed model.",

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AU - Chu, Chia Chi

AU - Chang, Ding Hsin

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AB - A hybrid Unified Power-Flow Controllers (UPFCs) models for power flow calculations is developed: an ideal voltage source model is used to represent the series part while an ideal current source model is used to represent the shunt part. Static relationships among real power and reactive power transfers, series transformer and shunt transformer losses are considered in details. Equivalent relationships among our new models and existing models will also be investigated. Since only one extra state variable is included in our developed UPFC models, it can be easily incorporated into existing Newton-type power flow solvers. Even with flat start initial conditions, this new model can be easily converged within a few iterations. We have tested our new models in IEEE 300-bus power systems. Simulation results will demonstrate the efficiency and the accuracy of our proposed model.

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Comprehensive UPFC models for power flow calculations in practical power systems

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Keywords

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