Modeling Shaft Damping of Turbine-Generator in Electromagnetic Transient Simulation
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Peng Qiu
To study the torsional oscillation phenomena of turbine-generators, a fundamental approach is by electromagnetic transient simulation. In this paper, the structure of the damping coefficient matrix of the shaft torsional model for turbine-generators is studied, and a method to determine the values of the elements of the damping coefficient matrix is developed. Through the analysis of different damping components, the most concerned damping component is identified. Based on the complex modal analysis method widely used in the mechanical vibration engineering, the relationship between the damping coefficient matrix and the torsional mode damping is established, furthermore, an iterative method to compute the damping coefficient matrix is developed. A test study on the turbine-generator shaft torsional model of the IEEE first SSR benchmark system indicates that the proposed torsional damping modeling technique in electromagnetic transient simulation is valid and effective.
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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Articles in the same Issue
- Article
- Design of New Load Balancers for Modern High Speed Railway Systems
- Alleviation of Network Overloads Using Concept of Virtual Flows
- Forecasting of Short-Term Electric Load Using Application of Wavelets with Feed-Forward Neural Networks
- Efficient Market Design and Public Goods, Part I: Economic Models
- Efficient Market Design and Public Goods, Part II: Theoretical Results
- Classification of Power Quality Disturbances Using Parzen Kernels
- Detection of Saturation and Reconstruction of the Secondary Current of a CT
- A New Blocking Scheme for Distance Protection during Power Swings
- Unit Commitment by Structure Based Solution and Efficient Lagrangian Relaxation
- Modeling Shaft Damping of Turbine-Generator in Electromagnetic Transient Simulation
