Research on Improved GPC of Pantograph Considering Actuator Time Delay and External Disturbance

Active control of pantograph is an effective method to improve the current received quality in electrified railway systems. To alleviate the negative impact of time delay in pantograph actuator, a Controlled Auto-Regressive Integrated Moving Average (CARIMA) model was designed for pantograph active...

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Published inSensors (Basel, Switzerland) Vol. 24; no. 22; p. 7350
Main Authors Wang, Ying, Wang, Yixuan, Chen, Xiaoqiang, Wang, Yuting, Ma, Aiping
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 18.11.2024
MDPI
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ISSN1424-8220
1424-8220
DOI10.3390/s24227350

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Abstract Active control of pantograph is an effective method to improve the current received quality in electrified railway systems. To alleviate the negative impact of time delay in pantograph actuator, a Controlled Auto-Regressive Integrated Moving Average (CARIMA) model was designed for pantograph active control. In conjunction with the Euler-Bernoulli catenary model, an improved generalized predictive control (IGPC) algorithm was proposed, and its stability was analyzed. Then, the control performance was verified and discussed through testing. Subsequently, the effects of external disturbances and time delay on control performance were discussed. The results indicate that the proposed controller with a larger control gain, exhibits better performance in reducing fluctuation in contact force between pantograph and catenary, despite being affected by external disturbance and actuator time delay, it still shows significant control performance.
AbstractList Active control of pantograph is an effective method to improve the current received quality in electrified railway systems. To alleviate the negative impact of time delay in pantograph actuator, a Controlled Auto-Regressive Integrated Moving Average (CARIMA) model was designed for pantograph active control. In conjunction with the Euler-Bernoulli catenary model, an improved generalized predictive control (IGPC) algorithm was proposed, and its stability was analyzed. Then, the control performance was verified and discussed through testing. Subsequently, the effects of external disturbances and time delay on control performance were discussed. The results indicate that the proposed controller with a larger control gain, exhibits better performance in reducing fluctuation in contact force between pantograph and catenary, despite being affected by external disturbance and actuator time delay, it still shows significant control performance.
Active control of pantograph is an effective method to improve the current received quality in electrified railway systems. To alleviate the negative impact of time delay in pantograph actuator, a Controlled Auto-Regressive Integrated Moving Average (CARIMA) model was designed for pantograph active control. In conjunction with the Euler-Bernoulli catenary model, an improved generalized predictive control (IGPC) algorithm was proposed, and its stability was analyzed. Then, the control performance was verified and discussed through testing. Subsequently, the effects of external disturbances and time delay on control performance were discussed. The results indicate that the proposed controller with a larger control gain, exhibits better performance in reducing fluctuation in contact force between pantograph and catenary, despite being affected by external disturbance and actuator time delay, it still shows significant control performance.Active control of pantograph is an effective method to improve the current received quality in electrified railway systems. To alleviate the negative impact of time delay in pantograph actuator, a Controlled Auto-Regressive Integrated Moving Average (CARIMA) model was designed for pantograph active control. In conjunction with the Euler-Bernoulli catenary model, an improved generalized predictive control (IGPC) algorithm was proposed, and its stability was analyzed. Then, the control performance was verified and discussed through testing. Subsequently, the effects of external disturbances and time delay on control performance were discussed. The results indicate that the proposed controller with a larger control gain, exhibits better performance in reducing fluctuation in contact force between pantograph and catenary, despite being affected by external disturbance and actuator time delay, it still shows significant control performance.
Audience Academic
Author Wang, Ying
Wang, Yixuan
Chen, Xiaoqiang
Ma, Aiping
Wang, Yuting
AuthorAffiliation 1 School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China; wangying01@mail.lzjtu.cn (Y.W.); xqchen@mail.lzjtu.cn (X.C.); 12221546@stu.lzjtu.edu.cn (Y.W.)
3 Lanzhou High-Speed Railway Infrastructure Section, Lanzhou Railway Bureau, Lanzhou 730050, China; 15107065049@163.com
2 Key Laboratory of Opto-Technology and Intelligent Control Ministry of Education, Lanzhou Jiaotong University, Lanzhou 730070, China
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– name: 3 Lanzhou High-Speed Railway Infrastructure Section, Lanzhou Railway Bureau, Lanzhou 730050, China; 15107065049@163.com
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Keywords pantograph
time delay
improved generalized predictive control
active control
external disturbance
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Snippet Active control of pantograph is an effective method to improve the current received quality in electrified railway systems. To alleviate the negative impact of...
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StartPage 7350
SubjectTerms active control
Actuators
Algorithms
Analysis
Control algorithms
external disturbance
High speed rail
improved generalized predictive control
Influence
pantograph
Parameter identification
Power supply
Railway networks
Simulation
time delay
Trains
Wire
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Title Research on Improved GPC of Pantograph Considering Actuator Time Delay and External Disturbance
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