欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
基于高速铁路牵引供电系统结构,以牵引变电所、自耦变压器（AT）所、开闭所、分区所和动车组位置为切面分割全并联AT牵引网,建立牵引供电系统模型;视动车组为感应电机并联静态负荷,研究基于“动车组—牵引网”（简称车网）耦合的牵引网潮流计算方法.对不同工况的算例计算分析结果表明：给出的牵引网潮流计算方法具有快速收敛和高精度的特点,可用于分析牵引网不同位置、动车组不同运行工况的供电能力和电能质量;动车组运行于再生制动工况时其所在位置处的接触线电压升高,而正馈线电压受影响较小;钢轨电压与AT中点抽头的接地电阻和动车组运行功率成正比例关系;当牵引和再生制动工况同时存在时,动车组再生制动产生的电能优先为同一供电臂内运行于牵引工况的动车组提供能量,剩余电能返回公共电网或储存于牵引变电所.
英文摘要：
Based on the structure of high-speed railway traction power supply system,which used substation,auto-transformer,switching station,section post and locomotive location as the section of all-parallel AT traction network,the model of traction power supply system was established.Taking the EMU （electric multiple unit） for induction motor and static load in parallel,the power flow calculation method of traction network based on ＂locomotive-traction network＂ （locomotive-network in short） coupling was studied.Analysis results of cases under different working conditions show that the proposed method has the advantages of fast convergence and high precision,which can be used to analyze the power supply capacity and power quality at different locations of traction network and different working conditions of EMU.When EMU operated under regenerative braking state,the voltage of the contact wire rises at EMU position,while the voltage of the positive feeder is little affected.The voltage of rail is proportional to the grounding resistance of AT center tap and the operating power of EMU.When the states of traction and regenerative braking are concurrent,the energy generated by regenerative braking supports the EMU under traction state at the same power supply arm preferentially,and the surplus energy returns to public grid or is stored in traction substation.
同期刊论文项目
同项目期刊论文
A Carrier-Based PWM Strategy with Zero-Sequence Voltage Injection for Single-Phase Three-Level Neutr
Deadbeat predictive power control of single phase three level neutral-point-clamped converters using
Relationship between two-level space-vector pulse-width modulation and carrier-based pulsewidth modu
Multiwavelet packet entropy and its application in transmission line fault recognition and classific
Nonlinear modelling of high-speed catenary based on analytical expressions of cable and truss elemen
An Open-switch fault diagnosis method for single-phase PWM rectifier using a model-based approach in
Identification of Nonlinear Dynamic System Using a Novel Recurrent Wavelet Neural Network Based on t
The multi-core parallel algorithms of wavelet/wavelet packet transforms and their applications in po
Power Flow Calculation for Traction Networks under Regenerative Braking Condition Based on Locomotiv
Passive Filter Design for China High-Speed Railway with Considering Harmonic Resonance and Character
A high robustness and low cost cascading failure model based on node importance in complex networks&
Passive Filter Design for China High Speed Railway with Considering Harmonic Resonance and Character
Harmonic Distortion Degradation and Filter Optimization Based on Sensitivity Studies with Considerin
Harmonic resonance assessment to traction power-supply system considering train model in China high-
An improved differential evolution algorithm of model-based diagnosis in traction substation fault d
Power calculation for direct power control of single phase three level rectifiers without phase lock
Detection of contact wire irregularities using a quadratic time-frequency representation of the pant
A Carrier-based PWM strategy with the offset voltage injection for single-phase three-level neutral-
期刊信息
位置：