| 引用本文: | 周末,王果,常文寰,陈苹.适于电气化铁路的三相两臂混合有源补偿研究[J].电力系统保护与控制,2015,43(13):100-104.[点击复制] |
| ZHOU Mo,WANG Guo,CHANG Wenhuan,CHEN Ping.Study on hybrid active compensation based on three-phase two-leg inverter for electrification railway[J].Power System Protection and Control,2015,43(13):100-104[点击复制] |
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| 摘要: |
| 为治理电气化铁路中机车负载引起的电能质量问题，讨论了一种能应用于电气化铁路三相有源补偿的新型拓扑电路。该三相两臂混合有源补偿结构的主电路采用三相两臂并联型混合有源补偿器的拓扑结构，其开关元件数量与三相桥式相比减少2个，成本较低。由于逆变器仅有两个开关臂，为此提出一种适用于三相两臂的无功、负序和谐波检测方法及坐标变换矩阵，运算量及存储空间大大减少。通过分析其工作原理、控制原理及策略，建立该三相两臂混合有源补偿器的Simulink仿真模型。仿真分析表明，该三相两臂并联型混合有源补偿器可以有效地抑制电力机车负载对电力系统产生的负序问题，抑制了无功和谐波对电网影响，提高了电网电能质量，并验证了所提出结构和控制方法的正确性。 |
| 关键词: 电气化铁路 综合补偿 电流检测 三相两桥臂 仿真分析 |
| DOI：10.7667/j.issn.1674-3415.2015.13.015 |
| 投稿时间：2014-07-31修订日期：2015-10-25 |
| 基金项目:国家自然科学基金项目资助(51367010)；甘肃省自然科学基金项目(1212RJZA064)；甘肃省高等学校基本科研业务费专项资金，兰州交通大学青年科学基金项目(2011042)；甘肃省科技计划项目资助(1304WCGA181) |
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| Study on hybrid active compensation based on three-phase two-leg inverter for electrification railway |
| ZHOU Mo,WANG Guo,CHANG Wenhuan,CHEN Ping |
| (School of Automation & Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;Baiyin Power Supply Company, Gansu Electric Power Corporation, Baiyin 730900, China) |
| Abstract: |
| A novel topology circuit of three-phase active compensation is discussed to be used to manage negative sequence caused by locomotive load in high-speed electrification railway. The main circuit uses a three-phase two-leg compensator as active elements of shunt hybrid active compensator topology. The switch devices’ number of this topology is reduced by two comparing with three-phase full-bridge active inverter, and the cost is lower. A new coordinates alternate method and matrix applied to detecting for reactive power, negative sequence and harmonic is presented due to the two-leg in inverter, calculation and storage are reduced, the computational speed is improved. The simulation model is developed by analyzing working principle, control principle and strategy with Simulink. The simulating results indicate that the shunt hybrid active compensator could restrain the problem of negative sequence generated by locomotive load, reduce the effect of reactive power and negative sequence, and improve electric energy quality. And the correctness of the proposed structure and control method is verified. |
| Key words: electrification railway integrated compensation current detection algorithm three-phase two-leg simulation analysis |
