电气化铁路牵引负荷对地区风电场的影响
发布时间：2019-06-13 16:26
【摘要】：电气化铁路是我国铁路系统的大动脉,其迅速发展的同时也给电网带来了一些影响。大唐三门峡风电场曾在郑西高铁途经的地区因电气化铁路集中运行而导致大面积脱网的现象发生。2015年底冀北地区风电场装机容量突破千万千瓦,附近新建设的张唐铁路于同年12月30日正式开通,多段铁路沿线途经风电场地区。本文基于国家电网冀北电科院有限公司的专项科技项目,围绕电气化铁路牵引负荷对周边电网,尤其是含有风电场地区的电网,以及对风电场的影响开展研究,针对谐波和负序在风机侧和牵引供电站侧两方面探讨抑制措施。本文首先对电气化铁路牵引负荷进行建模,利用PSCAD/EMTDC软件搭建了以冀北地区实际运行线路为基础的电网模型、牵引供电系统模型、HXD2型电力机车模型、等效风电场模型等。根据机车的运行方式灵活调整机车工况及运行在牵引网中的位置等来进行仿真。其次,在实际牵引站进行实地电能质量测试,利用测试数据和前文所搭建的模型产生的仿真结果进行仿真比对,用于验证模型的正确性和有效性,为研究电铁牵引负荷对电网和风电场的影响打下基础。然后,利用搭建好的模型针对机车不同的运行工况进行仿真,并归纳总结电铁牵引负荷对电网的影响规律。由于牵引负荷以及不对称的运行,会产生谐波和负序电流,研究谐波和负序电流在电网中沿不同路径的传播规律,以及谐波和负序两个电能质量问题对风电场的影响,并利用实测数据进行验证和总结。针对当前冀北地区正在运行的电网和风电场实际情况,来评估目前运力较小时电铁对风电场的影响,并对未来铁路运力增加后的情况进行预测分析。最后,针对电铁负荷对风电场的影响提出相对应的谐波和负序解决措施,讨论目前国内外正在采用的治理措施,选择利用FC滤波和三相SVC装置的方法来给出牵引站内部电能质量治理的建议。本文以具体工程实际项目为背景,结合冀北地区的电网参数和电气化铁路牵引负荷运行参数,对牵引负荷对周边风电场的影响进行了深入研究,对今后的电气化牵引站接入电网提供了一定的理论依据。
[Abstract]:The electrified railway is the main artery of our railway system, and its rapid development also brings some influence to the power grid. In the end of 2015, the installed capacity of the wind farm in the northern part of the Hebei province has exceeded tens of thousands of kilowatts, and the newly built Zhangtang railway in the vicinity was officially opened on December 30, the same year. The multi-section railway line passes through the area of the wind farm. This paper is based on the special scientific and technical project of the State Grid Hebei Electric Power Institute Co., Ltd., and studies the influence of the traction load of the electrified railway on the surrounding power grid, in particular the power grid containing the wind farm area, and the influence on the wind farm. The suppression measures are discussed for both the harmonic and negative sequence on the side of the fan and the side of the traction power supply station. Firstly, the traction load of the electrified railway is modeled, and the power grid model, the traction power supply system model, the HXD2 type electric locomotive model and the equivalent wind farm model, which are based on the actual running line in the northern Hebei area, are built by using the PSCAD/ EMTDC software. According to the operation mode of the locomotive, the condition of the locomotive and the position of the running in the traction net are flexibly adjusted, and the simulation is carried out. Secondly, carrying out field electric energy quality test on the actual traction station, carrying out simulation comparison on the simulation results generated by the test data and the model built in the above, and is used for verifying the correctness and the effectiveness of the model, and laying a foundation for researching the influence of the electric iron traction load on the power grid and the wind farm. Then, a good model is used to simulate the different operating conditions of the locomotive, and the influence law of the electric iron traction load on the power grid is summarized. Due to the traction load and the asymmetric operation, the harmonic and negative sequence current can be generated, the propagation law of the harmonic and negative sequence current along different paths in the power grid, and the influence of the two electric energy quality problems of the harmonic and the negative sequence on the wind farm are studied, and the measured data is used for verification and summarization. In view of the actual situation of the power grid and the wind farm in the north of Hebei, the effect of the current transport force on the wind farm is evaluated, and the prediction and analysis of the future railway capacity are also carried out. Finally, aiming at the influence of the electric iron load on the wind power plant, the corresponding harmonic and negative sequence solution measures are proposed, and the current governance measures at home and abroad are discussed, and the method of FC filtering and three-phase SVC device is selected to give the advice of the internal power quality control of the traction station. In this paper, based on the actual project of the project, the influence of the traction load on the peripheral wind farm is studied in combination with the power grid parameters in the northern Hebei area and the running parameters of the traction load of the electrified railway, and a certain theoretical basis for the access of the electrified traction station to the power grid is provided.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM614
本文编号：2498643
[Abstract]:The electrified railway is the main artery of our railway system, and its rapid development also brings some influence to the power grid. In the end of 2015, the installed capacity of the wind farm in the northern part of the Hebei province has exceeded tens of thousands of kilowatts, and the newly built Zhangtang railway in the vicinity was officially opened on December 30, the same year. The multi-section railway line passes through the area of the wind farm. This paper is based on the special scientific and technical project of the State Grid Hebei Electric Power Institute Co., Ltd., and studies the influence of the traction load of the electrified railway on the surrounding power grid, in particular the power grid containing the wind farm area, and the influence on the wind farm. The suppression measures are discussed for both the harmonic and negative sequence on the side of the fan and the side of the traction power supply station. Firstly, the traction load of the electrified railway is modeled, and the power grid model, the traction power supply system model, the HXD2 type electric locomotive model and the equivalent wind farm model, which are based on the actual running line in the northern Hebei area, are built by using the PSCAD/ EMTDC software. According to the operation mode of the locomotive, the condition of the locomotive and the position of the running in the traction net are flexibly adjusted, and the simulation is carried out. Secondly, carrying out field electric energy quality test on the actual traction station, carrying out simulation comparison on the simulation results generated by the test data and the model built in the above, and is used for verifying the correctness and the effectiveness of the model, and laying a foundation for researching the influence of the electric iron traction load on the power grid and the wind farm. Then, a good model is used to simulate the different operating conditions of the locomotive, and the influence law of the electric iron traction load on the power grid is summarized. Due to the traction load and the asymmetric operation, the harmonic and negative sequence current can be generated, the propagation law of the harmonic and negative sequence current along different paths in the power grid, and the influence of the two electric energy quality problems of the harmonic and the negative sequence on the wind farm are studied, and the measured data is used for verification and summarization. In view of the actual situation of the power grid and the wind farm in the north of Hebei, the effect of the current transport force on the wind farm is evaluated, and the prediction and analysis of the future railway capacity are also carried out. Finally, aiming at the influence of the electric iron load on the wind power plant, the corresponding harmonic and negative sequence solution measures are proposed, and the current governance measures at home and abroad are discussed, and the method of FC filtering and three-phase SVC device is selected to give the advice of the internal power quality control of the traction station. In this paper, based on the actual project of the project, the influence of the traction load on the peripheral wind farm is studied in combination with the power grid parameters in the northern Hebei area and the running parameters of the traction load of the electrified railway, and a certain theoretical basis for the access of the electrified traction station to the power grid is provided.
【学位授予单位】：北京交通大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM614
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