用于交直交变频系统的超级电容储能系统的设计与控制

发布时间：2018-07-05 03:35

本文选题：超级电容 + 交直交变频系统　；参考：《西安理工大学》2017年硕士论文

【摘要】：近年来,随着电力电子技术和交流调速控制理论的不断发展,交直交变频调速系统作为一种智能调速装置已广泛应用于国民经济的各个领域。本文将超级电容储能系统用于交直交变频系统中,实现回收变频系统制动能量、平稳其直流母线电压和补偿运行阶段功率等功能,提高变频系统的可靠性和稳定性,使其运行更加高效节能。首先,论文以经典RC串联模型为基础,推导计算了不同充放电模式下超级电容器组电压、电流和充放电效率随时间变化的微分方程组,借助MATLAB的图像处理功能绘制出相关的充放电特性曲线,分析对比了其各自的优缺点及使用场合。其次,结合生产实际,针对交直交变频系统工况。其一,设计了以稳定直流电压为目的的超级电容储能系统的直流电压控制策略:其二,设计了以避免交直交变频系统供电电源超负荷运行为目的的超级电容储能系统的负载功率控制策略。借助PSIM仿真软件完成了控制策略正确性和可行性的验证。再次,借助先进控制技术中的预测控制理论,将动态矩阵预测控制(DMC)和传统P1控制相结合,组成DMC-PI串联预测控制,并将其引入超级电容储能系统的直流电压控制策略中,提高了系统控制的调节速度和抗扰性能。最后,设计了超级电容储能系统的主电路参数,以TMS320F28335为核心的CPU控制电路PCB板,以及相关调理电路和保护电路PCB板,搭建了系统实验平台。通过实验,采用本文的控制策略,超级电容储能系统可以根据工作需要实现不同工作状态安全的切入、切出和状态之间的转换。超级电容储能系统对直流电压稳定的控制效果得到验证。
[Abstract]:In recent years, with the development of power electronics technology and AC speed regulation control theory, AC-DC frequency conversion speed regulation system as an intelligent speed regulation device has been widely used in various fields of the national economy. In this paper, the super capacitor energy storage system is used in AC / DC frequency conversion system to recover the braking energy of the frequency conversion system, to stabilize the DC bus voltage and to compensate the power in the operation stage, and to improve the reliability and stability of the frequency conversion system. Make it run more efficiently and energy saving. Firstly, based on the classical RC series model, the differential equations of voltage, current and charge / discharge efficiency of supercapacitor banks under different charge-discharge modes are derived. According to the image processing function of MATLAB, the charge-discharge characteristic curves are drawn, and their advantages and disadvantages are analyzed and compared. Secondly, combined with the actual production, the AC DC frequency conversion system working conditions. First, the DC voltage control strategy of the super capacitor energy storage system is designed for the purpose of stabilizing DC voltage. The load power control strategy of super capacitor energy storage system is designed to avoid overload operation of AC DC frequency conversion power supply. The correctness and feasibility of the control strategy are verified by PSIM simulation software. Thirdly, with the help of predictive control theory in advanced control technology, dynamic matrix predictive control (DMC) and traditional P1 control are combined to form DMC-PI series predictive control, and it is introduced into DC voltage control strategy of super capacitor energy storage system. The adjusting speed and immunity performance of the system control are improved. Finally, the main circuit parameters of the super capacitor energy storage system are designed. The PCB board of CPU control circuit with TMS320F28335 as the core, and the related conditioning circuit and protection circuit PCB board are designed, and the system experimental platform is built. Through experiments and using the control strategy in this paper, the super capacitor energy storage system can realize the safe cut in, cut out and state conversion between different working states according to the need of work. The control effect of super capacitor energy storage system on DC voltage stability is verified.
【学位授予单位】：西安理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM53

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