{"title":"双潮流风电转换系统无传感器最大功率点跟踪","authors":"Ying Zhu, M. Cheng, W. Hua","doi":"10.1109/PEDG.2012.6253980","DOIUrl":null,"url":null,"abstract":"This paper proposes a sensorless maximum power point tracking (MPPT) strategy for dual power flow wind energy conversion system (WECS) based on electrical variable transmission (EVT). The outer rotor torque of the EVT is suitably controlled according to the outer rotor speed to realize the MPPT without the knowledge of wind velocity. Moreover, the model reference adaptive system (MRAS) observers are adopted to observe the outer rotor speed and position. Therefore, the proposed wind energy conversion system is controlled without physical sensors such as wind speed sensor and position sensor. Both the normal and the simplified MRAS observers are analyzed and the performance of each observer is compared. The simulation models are built based on Matlab/Simulink, and the simulation results validate the feasibility and effectiveness of the sensorless MPPT control of the proposed system.","PeriodicalId":146438,"journal":{"name":"2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2012-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Sensorless maximum power point tracking in dual power flow wind energy conversion system\",\"authors\":\"Ying Zhu, M. Cheng, W. Hua\",\"doi\":\"10.1109/PEDG.2012.6253980\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper proposes a sensorless maximum power point tracking (MPPT) strategy for dual power flow wind energy conversion system (WECS) based on electrical variable transmission (EVT). The outer rotor torque of the EVT is suitably controlled according to the outer rotor speed to realize the MPPT without the knowledge of wind velocity. Moreover, the model reference adaptive system (MRAS) observers are adopted to observe the outer rotor speed and position. Therefore, the proposed wind energy conversion system is controlled without physical sensors such as wind speed sensor and position sensor. Both the normal and the simplified MRAS observers are analyzed and the performance of each observer is compared. The simulation models are built based on Matlab/Simulink, and the simulation results validate the feasibility and effectiveness of the sensorless MPPT control of the proposed system.\",\"PeriodicalId\":146438,\"journal\":{\"name\":\"2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-06-25\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PEDG.2012.6253980\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 3rd IEEE International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PEDG.2012.6253980","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Sensorless maximum power point tracking in dual power flow wind energy conversion system
This paper proposes a sensorless maximum power point tracking (MPPT) strategy for dual power flow wind energy conversion system (WECS) based on electrical variable transmission (EVT). The outer rotor torque of the EVT is suitably controlled according to the outer rotor speed to realize the MPPT without the knowledge of wind velocity. Moreover, the model reference adaptive system (MRAS) observers are adopted to observe the outer rotor speed and position. Therefore, the proposed wind energy conversion system is controlled without physical sensors such as wind speed sensor and position sensor. Both the normal and the simplified MRAS observers are analyzed and the performance of each observer is compared. The simulation models are built based on Matlab/Simulink, and the simulation results validate the feasibility and effectiveness of the sensorless MPPT control of the proposed system.