A Rotor Position Signal-Free Based Field Current Estimation Method for Brushless Synchronous Starter/Generator
This article proposed a position signal-free field current estimation method for brushless synchronous starter/generator (BSSG). Generally, the estimation of the field current of BSSG depends on the position signals provided by a physical sensor or position estimation algorithm. However, there are r...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9964226/ |
| _version_ | 1797987364170104832 |
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| author | Zan Zhang Weizhou Li Luhuan Shi Junlei Ma Zhifeng Yin |
| author_facet | Zan Zhang Weizhou Li Luhuan Shi Junlei Ma Zhifeng Yin |
| author_sort | Zan Zhang |
| collection | DOAJ |
| description | This article proposed a position signal-free field current estimation method for brushless synchronous starter/generator (BSSG). Generally, the estimation of the field current of BSSG depends on the position signals provided by a physical sensor or position estimation algorithm. However, there are risks in using the traditional method when the position sensor is broken or using estimated position information to evaluate the field current. To overcome this problem, this paper proposes a position signal-free estimation method. In this method, the mathematical relationship between the field current of the main machine (MM) and the current vector modulus (CVM) of the main exciter (ME) rotor currents are analyzed. The theoretical findings reveal that the field current of the main machine (MM) equates to the minimum or <inline-formula> <tex-math notation="LaTeX">$\surd 3$ </tex-math></inline-formula>/2 times maximum distance during the rotating trajectory of ME’s rotor CVM in both rotating and stationary coordinates. Since the ME’s rotor CVM is independent of the rotor position information, the estimation of the field current of BSSG can be achieved without the rotor position signal departing in. Finally, an experiment platform is established to emulate the BSSG, and experimental results validate the theoretical findings. |
| first_indexed | 2024-04-11T07:47:30Z |
| format | Article |
| id | doaj.art-bbd3c6d70a2d418dbc4abd1959aa0001 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-04-11T07:47:30Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-bbd3c6d70a2d418dbc4abd1959aa00012022-12-22T04:36:15ZengIEEEIEEE Access2169-35362022-01-011012440812441910.1109/ACCESS.2022.32250959964226A Rotor Position Signal-Free Based Field Current Estimation Method for Brushless Synchronous Starter/GeneratorZan Zhang0https://orcid.org/0000-0001-8241-6517Weizhou Li1https://orcid.org/0000-0002-7701-2312Luhuan Shi2https://orcid.org/0000-0002-5428-4438Junlei Ma3https://orcid.org/0000-0002-8999-3023Zhifeng Yin4https://orcid.org/0000-0003-1746-1017School of Electrical and Mechanical Engineering (Engineering Training Center), Xuchang University, Xuchang, ChinaSchool of Electrical and Mechanical Engineering (Engineering Training Center), Xuchang University, Xuchang, ChinaSchool of Electrical and Mechanical Engineering (Engineering Training Center), Xuchang University, Xuchang, ChinaSchool of Electrical and Mechanical Engineering (Engineering Training Center), Xuchang University, Xuchang, ChinaSchool of Electrical and Mechanical Engineering (Engineering Training Center), Xuchang University, Xuchang, ChinaThis article proposed a position signal-free field current estimation method for brushless synchronous starter/generator (BSSG). Generally, the estimation of the field current of BSSG depends on the position signals provided by a physical sensor or position estimation algorithm. However, there are risks in using the traditional method when the position sensor is broken or using estimated position information to evaluate the field current. To overcome this problem, this paper proposes a position signal-free estimation method. In this method, the mathematical relationship between the field current of the main machine (MM) and the current vector modulus (CVM) of the main exciter (ME) rotor currents are analyzed. The theoretical findings reveal that the field current of the main machine (MM) equates to the minimum or <inline-formula> <tex-math notation="LaTeX">$\surd 3$ </tex-math></inline-formula>/2 times maximum distance during the rotating trajectory of ME’s rotor CVM in both rotating and stationary coordinates. Since the ME’s rotor CVM is independent of the rotor position information, the estimation of the field current of BSSG can be achieved without the rotor position signal departing in. Finally, an experiment platform is established to emulate the BSSG, and experimental results validate the theoretical findings.https://ieeexplore.ieee.org/document/9964226/Field currentestimationposition signal-freerotor current vector modulusBSSG |
| spellingShingle | Zan Zhang Weizhou Li Luhuan Shi Junlei Ma Zhifeng Yin A Rotor Position Signal-Free Based Field Current Estimation Method for Brushless Synchronous Starter/Generator IEEE Access Field current estimation position signal-free rotor current vector modulus BSSG |
| title | A Rotor Position Signal-Free Based Field Current Estimation Method for Brushless Synchronous Starter/Generator |
| title_full | A Rotor Position Signal-Free Based Field Current Estimation Method for Brushless Synchronous Starter/Generator |
| title_fullStr | A Rotor Position Signal-Free Based Field Current Estimation Method for Brushless Synchronous Starter/Generator |
| title_full_unstemmed | A Rotor Position Signal-Free Based Field Current Estimation Method for Brushless Synchronous Starter/Generator |
| title_short | A Rotor Position Signal-Free Based Field Current Estimation Method for Brushless Synchronous Starter/Generator |
| title_sort | rotor position signal free based field current estimation method for brushless synchronous starter generator |
| topic | Field current estimation position signal-free rotor current vector modulus BSSG |
| url | https://ieeexplore.ieee.org/document/9964226/ |
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