Analysis of Energy Consumption Characteristics Based on Simulation and Traction Calculation Model for the CRH Electric Motor Train Units

Wang, Mengyao; Kou, Baoquan; Zhao, Xiaokun

doi:10.23919/icems.2018.8549182

Cited by 9 publications

(3 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Through the drag calculation, the running speed v and slope s are converted into speed drag F(datum) and slope drag F(slope), respectively. The F(total) represents the total drag [21] ( )…”

Section: A Electrical Model Of the Traction Drive Systemmentioning

confidence: 99%

“…Meanwhile, the solar irradiance at small timescales is handled by the instantaneous electro-thermal method [20]. However, according to the multioperation conditions in the railway, the complex mission profiles need to be dealt with, including the short-term changes in speed and slope as well as the long-term changes in ambient temperature and humidity [21]- [22]. Therefore, the electrothermal stress analysis with the dynamic power losses should be resolved well.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electrothermal Stress Analysis and Lifetime Evaluation of DC-Link Capacitor Banks in the Railway Traction Drive System

Yao

Xie

et al. 2021

IEEE J. Emerg. Sel. Topics Power Electron.

View full text Add to dashboard Cite

In the railway traction drive system, the reliability of DC-link capacitor banks faces enormous challenges due to the multi-operation conditions, the complex physical structures, and the safe operation requirements. Considering these issues, this paper proposes a reliability evaluation method of the DC-link capacitors banks to provide a guideline for preventive maintenance in the traction drive system. In the electro-thermal stress analysis, different from the conventional methods, the dynamic power loss profile is obtained by the sliding-window discrete Fourier transform (DFT) and the equivalent series resistance is fitted by the neural network. Afterward, a bidirectional thermal model is established to estimate the thermal stress under the dynamic power losses, considering the impact of thermal capacity, thermal coupling, and air-cooling heat dissipation. In addition, according to stability analysis and the rated temperature limitation, an end-of-lifetime standard that meets the safe operation requirement of the train is firstly proposed, thereby evaluating the lifetime bottleneck of the DClink capacitor banks. The evaluation results can provide a reference to use the lower-cost on-condition maintenance instead of scheduled maintenance in the railway traction drive system. Furthermore, a prototype experiment is performed to verify the effectiveness of the electro-thermal stress model.

show abstract

“…Through the drag calculation, the running speed v and slope s are converted into speed drag F(datum) and slope drag F(slope), respectively. The F(total) represents the total drag [21] ( )…”

Section: A Electrical Model Of the Traction Drive Systemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electrothermal Stress Analysis and Lifetime Evaluation of DC-Link Capacitor Banks in the Railway Traction Drive System

Yao

Xie

et al. 2021

IEEE J. Emerg. Sel. Topics Power Electron.

View full text Add to dashboard Cite

show abstract

“…Based on this, the running speed v is converted into the motor speed n, and the total drag F(total) is converted into the rated motor torque (motor load) Te, thereby forming a closed-loop controlled traction drive system [30]:…”

Section: B Multi-timescale Mission Profile Of Electrical Stressmentioning

confidence: 99%

Multitimescale Reliability Evaluation of DC-Link Capacitor Banks in Metro Traction Drive System

Yao

Wang

et al. 2020

IEEE Trans. Transp. Electrific.

View full text Add to dashboard Cite

The reliability of DC-link capacitors in urban rail transit is considered as a major challenge because of significant maintenance impact. In this paper, the DC-link capacitor reliability is researched in metro traction drive system. In the small timescale of control level, the current harmonics of multiple operating conditions and different control methods in the DClink capacitor are discussed. The power loss is simulated by the capacitor harmonics of current and equivalent series resistance (ESR) in multi-operating conditions. Considering electro-thermal coupling, the time-ordered and continuity of thermal stress are analyzed to evaluate the hot spot temperature dynamic conformed to the reality. Combining with the analysis of electrical stress and thermal stress, a multi-timescale capacitor reliability evaluation method is proposed. It is divided into four steps: the discrete small timescale, the single route timescale, the daily operation timescale and the whole lifetime cycle. In the different timescales, the lifetime distribution changes with the dynamics of the complex mission profiles, so as to estimate the lifetime bottleneck of the DC-link capacitor banks with different control methods by the Weibull distribution. In addition, experimental validation is provided to verify the accuracy of the proposed method.

show abstract

Analysis of Prediction and Clustering of Electricity Consumption in the Province of Imbabura-Ecuador for the Planning of Energy Resources

Rosero-Garcia

Cedeño

Arciniega-Rocha

et al. 2021

Lecture Notes in Networks and Systems

View full text Add to dashboard Cite

Analysis of Energy Consumption Characteristics Based on Simulation and Traction Calculation Model for the CRH Electric Motor Train Units

Cited by 9 publications

References 10 publications

Electrothermal Stress Analysis and Lifetime Evaluation of DC-Link Capacitor Banks in the Railway Traction Drive System

Electrothermal Stress Analysis and Lifetime Evaluation of DC-Link Capacitor Banks in the Railway Traction Drive System

Multitimescale Reliability Evaluation of DC-Link Capacitor Banks in Metro Traction Drive System

Analysis of Prediction and Clustering of Electricity Consumption in the Province of Imbabura-Ecuador for the Planning of Energy Resources

Contact Info

Product

Resources

About