Synchronous Machine Winding Modeling Method Based on Broadband Characteristics
| Autor: | Xiaoqing Ji, Yu Chen, Zhongyong Zhao |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Technology
QH301-705.5 Computer science QC1-999 020209 energy optimization algorithm Port (circuit theory) single-phase high-frequency lumped parameter model 02 engineering and technology Fault (power engineering) Electromagnetic interference common mode and differential mode impedance Robustness (computer science) Control theory 0202 electrical engineering electronic engineering information engineering General Materials Science Biology (General) QD1-999 Instrumentation Electrical impedance Fluid Flow and Transfer Processes State-space representation Physics Process Chemistry and Technology state space General Engineering Engineering (General). Civil engineering (General) 021001 nanoscience & nanotechnology Computer Science Applications Chemistry Equivalent circuit TA1-2040 0210 nano-technology Synchronous motor |
| Zdroj: | Applied Sciences Volume 11 Issue 10 Applied Sciences, Vol 11, Iss 4631, p 4631 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11104631 |
| Popis: | The accurate establishment of the equivalent circuit model of the synchronous machine windings’ broadband characteristics is the basis for the study of high-frequency machine problems, such as winding fault diagnosis and electromagnetic interference prediction. Therefore, this paper proposes a modeling method for synchronous machine winding based on broadband characteristics. Firstly, the single-phase high-frequency lumped parameter circuit model of synchronous machine winding is introduced, then the broadband characteristics of the port are analyzed by using the state space model, and then the equivalent circuit parameters are identified by using an optimization algorithm combined with the measured broadband impedance characteristics of port. Finally, experimental verification and comparison experiments are carried out on a 5-kW synchronous machine. The experimental results show that the proposed modeling method identifies the impedance curve of the circuit parameters with a high degree of agreement with the measured impedance curve, which indicates that the modeling method is feasible. In addition, the comparative experimental results show that, compared with the engineering exploratory calculation method, the proposed parameter identification method has stronger adaptability to the measured data and a certain robustness. Compared with the black box model, the parameters of the proposed model have a certain physical meaning, and the agreement with the actual impedance characteristic curve is higher than that of the black box model. |
| Databáze: | OpenAIRE |
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