大容量车载超级电容充电装置的研究
发布时间：2019-05-14 05:37
【摘要】：随着能源环境问题的加剧,各种开发新能源的项目正在如火如荼的开展进行中,将超级电容应用于城市公共交通就是其中的一个方面。城市公共交通对于城市的稳定发展起着重要的作用,大量人流选择公共交通不仅会减轻城市交通的拥堵情况,而且选择公共交通对于城市环境的改善也有巨大的好处。今年,各地频发雾霾天气,主要原因之一就是私家车太多,城市空气受到汽车尾气的严重污染。本文结合实验室具体项目,研究内容包括车载超级电容储能系统应用的两个方面：超级电容公交车与超级电容轻轨。 由于超级电容公交车的充电容量不是很大,且对其充电引起的电网影响也不大,可采用12脉动整流+斩波变换器的充电装置,该充电装置基本可以满足功率因数和谐波要求；根据浙江某城市交通运输公司提供的数据,在PSCAD中建立了充电装置的模型算例,并对超级电容公交车充电装置充电引起的电能质量问题进行了分析评估,分析指标包括谐波、波动与闪变、电压偏差、频率偏差等。为了进一步减小充电装置对电网的谐波影响,获得更高的功率因数,适应传输大功率(比如800kW)的要求,结合与中铁集团的实际项目所提供的数据,提出了基于三相PWM变流器+并联型斩波变换器的充电拓扑装置。文中主要是对超级电容轻轨充电装置的主电路拓扑进行数学模型分析和参数设计。然后在PSCAD中建立了适合仿真研究的充电装置模型,对由其引起的电网影响进行分析研究,并对整个装置的效率进行了简单分析计算。 将十二脉动整流器和PWM整流器应用在车载充电装置上,可以降低充电装置对电网的谐波影响,提高整个装置的功率因素。本文对大容量车载超级电容充电装置的研究对于实际项目的开展具有一定的指导意义。
[Abstract]:With the aggravation of energy and environment problems, a variety of projects to develop new energy are in full swing, and the application of supercapacitors in urban public transport is one of them. Urban public transport plays an important role in the stable development of the city. The choice of public transport by a large number of people will not only reduce the congestion of urban traffic, but also have great benefits to the improvement of urban environment. This year, one of the main reasons for the frequent haze weather is that there are too many private cars and the air in the city is seriously polluted by car exhaust. Combined with the laboratory project, the research content of this paper includes two aspects of the application of supercapacitor energy storage system: supercapacitor bus and supercapacitor light rail. Because the charging capacity of supercapacitor bus is not very large, and the influence on the power grid caused by its charging is not great, the charging device of 12 pulsating rectifier chopper converter can be used, which can basically meet the requirements of power factor and harmonics. According to the data provided by a city transportation company in Zhejiang Province, a model example of charging device is established in PSCAD, and the power quality problems caused by charging of supercapacitor bus charging device are analyzed and evaluated, including harmonics. Fluctuation and flicker, voltage deviation, frequency deviation, etc. In order to further reduce the harmonic influence of the charging device on the power grid, obtain a higher power factor, adapt to the requirements of high power transmission (such as 800kW), combined with the data provided by the actual project of the China Railway Group, A charging topology device based on three-phase PWM converter parallel chopper converter is proposed. In this paper, the main circuit topology of supercapacitor light rail charging device is analyzed by mathematical model and parameter design. Then a charging device model suitable for simulation research is established in PSCAD, the influence of the power grid caused by it is analyzed and studied, and the efficiency of the whole device is simply analyzed and calculated. The application of twelve pulsating rectifier and PWM rectifier to the on-board charging device can reduce the harmonic influence of the charging device on the power grid and improve the power factor of the whole device. In this paper, the research of large capacity vehicle supercapacitor charging device has certain guiding significance for the development of practical projects.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.17;TM910.6
本文编号：2476474
[Abstract]:With the aggravation of energy and environment problems, a variety of projects to develop new energy are in full swing, and the application of supercapacitors in urban public transport is one of them. Urban public transport plays an important role in the stable development of the city. The choice of public transport by a large number of people will not only reduce the congestion of urban traffic, but also have great benefits to the improvement of urban environment. This year, one of the main reasons for the frequent haze weather is that there are too many private cars and the air in the city is seriously polluted by car exhaust. Combined with the laboratory project, the research content of this paper includes two aspects of the application of supercapacitor energy storage system: supercapacitor bus and supercapacitor light rail. Because the charging capacity of supercapacitor bus is not very large, and the influence on the power grid caused by its charging is not great, the charging device of 12 pulsating rectifier chopper converter can be used, which can basically meet the requirements of power factor and harmonics. According to the data provided by a city transportation company in Zhejiang Province, a model example of charging device is established in PSCAD, and the power quality problems caused by charging of supercapacitor bus charging device are analyzed and evaluated, including harmonics. Fluctuation and flicker, voltage deviation, frequency deviation, etc. In order to further reduce the harmonic influence of the charging device on the power grid, obtain a higher power factor, adapt to the requirements of high power transmission (such as 800kW), combined with the data provided by the actual project of the China Railway Group, A charging topology device based on three-phase PWM converter parallel chopper converter is proposed. In this paper, the main circuit topology of supercapacitor light rail charging device is analyzed by mathematical model and parameter design. Then a charging device model suitable for simulation research is established in PSCAD, the influence of the power grid caused by it is analyzed and studied, and the efficiency of the whole device is simply analyzed and calculated. The application of twelve pulsating rectifier and PWM rectifier to the on-board charging device can reduce the harmonic influence of the charging device on the power grid and improve the power factor of the whole device. In this paper, the research of large capacity vehicle supercapacitor charging device has certain guiding significance for the development of practical projects.
【学位授予单位】：华北电力大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.17;TM910.6
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