| 引用本文: | 宋小翠,刘志刚,黄可.基于状态空间分析法的高铁牵引网弓网燃弧电磁暂态影响[J].电力自动化设备,2017,37(12): |
| SONG Xiaocui,LIU Zhigang,HUANG Ke.Electromagnetic transient influence of pantograph detachment arcing for traction network in high-speed railway based on state space analysis method[J].Electric Power Automation Equipment,2017,37(12): |
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| 摘要: |
| 针对高铁弓网燃弧造成的电磁暂态现象，提出采用状态空间分析法对计及弓网燃弧的牵引网多工况的电磁暂态影响进行建模研究。以列车正常运行发生弓网第一次燃弧为例，详细对牵引网分布参数模型、非线性状态方程建立、离散化求解算法流程进行分析；通过求解得到不同负载特性下的电弧电压、电流特性波形验证了模型及该方法求解的正确性；基于状态空间分析法，实例研究弓网多次燃弧、熄弧情况下，列车高速运行和过分相2种常见工况的受电弓弓头电压变化，并提出相应抑制方案。研究结果表明：高速铁路多次燃弧是造成列车电压畸变及暂态过电压的重要因素，所采用的状态空间分析法可有效分析高铁弓网非线性电弧的影响。 |
| 关键词: 高速铁路 弓网离线电弧 状态空间分析法 非线性状态求解 过分相 |
| DOI：10.16081/j.issn.1006-6047.2017.12.026 |
| 分类号:U223.6 |
| 基金项目:国家自然科学基金高铁联合基金重点项目(U1434203)；国家自然科学基金资助项目(51377136)；四川省青年科技创新团队项目(2016TD0012) |
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| Electromagnetic transient influence of pantograph detachment arcing for traction network in high-speed railway based on state space analysis method |
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SONG Xiaocui, LIU Zhigang, HUANG Ke
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School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
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| Abstract: |
| Aiming at the electromagnetic transient phenomenon caused by the pantograph detachment arcing, the state space analysis method for analyzing electromagnetic transient influence of traction network is proposed and adopted, and the corresponding modeling study for the traction network under several conditions is performed. Taking the situation of train’s high-speed operation along with first detachment arc as the research example, the distributed-parameter modeling of traction network, establishment of nonlinear state equation, and discrete solution process of algorithm are analyzed in detail. Through solving the characteristic waveforms of arc voltage and current under different load characteristics, the correctness of above solution method is verified. Based on the state space analysis method, two common high-speed railway conditions, i. e. train’s high-speed operation and passing electric split-phase region, are considered, and the waveforms of pantograph head voltages are solved considering multiple arcing. Results show that, multiple arcing is an important factor of train’s voltage distortion and transient over-voltage, and the state space analysis method can effectively analyze the impact of pantograph detachment nonlinear arc in high-speed railway. |
| Key words: high-speed railway pantograph-catenary detachment arc state space analysis method non-linear state solution passing electric split-phase region |
