受电弓是电力机车、电力动车组及一些特种车辆上必不可少的高压受流装置，而升弓装置则是驱动受电弓升起，并使之与接触网接触、保证其可靠受流的重要装置。升弓装置属气动装置，主要由蓄电池、电动机、空气压缩机、传动气缸等组成。传统的升弓装置是采用直流电动机驱动压缩机作为压缩空气源。本设计提出一种新型的升弓装置气源系统，即以交流电动机取代直流电动机驱动压缩机，并对交流压缩机的配套电源的主电路和控制电路进行了设计。主要内容是研究并设计出将蓄电池DC110V转换为AC220V的主电路和控制电路。
本设计的选题来源于株洲时代电子技术有限公司的宿营车供电电源项目。首先，论文对要设计的升弓装置供电电源的作用做了说明，对升弓装置升弓原理和升降弓过程进行了介绍。并由此提出了对升弓电源的几点要求，给出了主要的技术要求。
本设计提出以交流压缩机代替直流压缩机为受电弓升弓提供压缩空气，设计的重点是设计出给交流压缩机提供交流电源的配套电源。相比于传统的直流升弓装置，交流升弓装置具有成本低、所占空间小等优点。
在进行主电路设计时，采用对比分析法对主电路拓扑进行了选择，对选用的拓扑的工作原理进行了详细的阐述。对升弓装置供电电源的主电路、控制电路进行了设计。主电路的设计重点是功率器件的选择。根据实际情况选择不同的功率器件，比如升压电路不适宜选择IPM模块，只能选择IGBT模块。逆变部分则选择IPM模块较好。并对功率器件的吸收电路和散热进行了设计。在功率模块的散热设计时，采用三菱公司开发的损耗计算软件，能方便而又准确的计算出功率器件的损耗。
在控制部分设计中，对控制芯片电路及其主要的外围电路进行了设计，并且对外围电路的芯片选择和工作原理进行了简要说明。控制软件设计的核心是PWM电路的产生，通过对DSP（Digital Signal Processor）芯片TMS320F2812中事件管理器（EV）中的寄存器进行设置，产生三角载波。采样调理反馈值与参考值之间的偏差经过PI调理后，新的偏差值与三角载波比较，改变脉宽的大小和位置，以达到调节电压的目的。通过改变参考正弦电压的频率，可以控制输出电压的频率。
最后，在MATLAB/Simulink中对升压电路和逆变电路分别进行了仿真。并给出了升压电路输出波形和逆变电路输出波形及波形的FFT分析。仿真结果表明本论文的设计能够满足要求。

 

Pantograph is essential for high-pressure current collector devices in electric locomotives, power EMU and some special vehicles. The pantograph rising device is very important device, which raises the pantograph to contact with the catenary, and ensure the contact between the catenary and patograph. The pantograph rising device is a pneumatic device, including the batteries, motors, air compressors and transmission cylinder. Traditionary, the pantograph rising device uses a DC motor-driven compressor as the force of compressed air. The design of the novel pantograph rising device air system, replace the DC motor-driven compressor with the AC motor-driven compressor, and gives the main circuit and control circuit of the power which match the AC compressor. The main content of the paper is the design of the main circuit and control circuit which convert DC110V to AC220V.
The design of the issue is from the camping car power supply project, which belongs to the Zhuzhou Times Electronic Technology Co., Ltd. First, the paper describes the role of the power supply right l bow device, introduced the principle of the l bow device l bow and the process of lifting the bow. And the paper put forward several requests, the main technical parameters required of the l bow power.
This design is proposed to replace the AC compressor DC compressor to provide compressed air for the pantograph l bow, the design focus is to design a matching power supply to provide AC power to the AC compressor. Compared to the traditional DC l bow device, the novel l bow device has a low cost, small weight and volumn.
During the main circuit design, the use of comparative analysis on the main circuit topology selection, the principle of selection of the topology of the detailed description. L bow device power supply contains the main circuit and the control circuit. The main circuit design with emphasis on the choice of the power devices. The choose of different power devices based on the actual situation, such as boost circuit is not appropriate to select the IPM module, and can only choose the IGBT module. The IPM module is appropriate for inverter circuit. The snubber circuit of the power devices and cooling circuit are designed. In the thermal design of the power module, Loss calculation software, which is developed by Mitsubishi, can easily and accurately calculate the loss of power devices.
The design contains the control chip circuit and its peripheral circuits, and a brief description of the peripheral circuit chip selection and works were put forward. The core of the control software design is the generation of the PWM circuit, which is set by the register in the DSP ( Digital Signal Processor ) chip TMS320F2812 Event Manager (EV), resulting in the triangular carrier. In order to achieve the purpose of regulating the voltage, the difference between Sample conditioning feedback and a reference value, regulated by PID regulater, new deviation and the triangular carrier, changing the pulse width of the size and position. The frequency of the output voltage can be controlled by changing the frequency of the reference sinusoidal voltage.
Finally, the boost circuit and inverter circuit were simulated in the MATLAB/Simulink. And the paper gives the output of the boost circuit and inverter circuit and FFT analysis. The simulation results show that the design of this paper can meet the requirements.