Determination of Equivalent-circuit Parameters of a Synchronous Generator Based on the Standstill DC Decay Test and a Hybrid Optimization Method
| Autor: | Rafael Escarela-Perez, M. A. Arjona, M. Cisneros-Gonzalez, C. Hernandez |
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| Rok vydání: | 2011 |
| Předmět: |
Engineering
Estimation theory Stator business.industry Mechanical Engineering Energy Engineering and Power Technology Perturbation (astronomy) Permanent magnet synchronous generator law.invention Data acquisition law Mercury relay Control theory Equivalent circuit Electrical and Electronic Engineering business Excitation |
| Zdroj: | Electric Power Components and Systems. 39:645-659 |
| ISSN: | 1532-5016 1532-5008 |
| DOI: | 10.1080/15325008.2010.536808 |
| Popis: | The parameter estimation of a salient-pole synchronous generator using the DC decay test at standstill is presented in this article. A dedicated experimental setup for this test was constructed, and it consists of a Labview program, a data acquisition system, sensors, and a mercury relay. The parameter estimation is performed using the stator and field current responses from the d-axis test, while for the q-axis, the stator current response is used. The two-axis theory is used to model the generator and, hence, equivalent circuits are used to represent it. The genetic and Gauss-Newton algorithms are employed in the estimation process of the fundamental model parameters, where data from the standstill DC decay experiment are used. The estimated parameters correspond to a low-level excitation perturbation, and to see their validity under a large disturbance, the sudden three-phase short-circuit fault was chosen. It is found that a model with the DC decay based parameters can predict with good accur... |
| Databáze: | OpenAIRE |
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