超级电容在电梯节能控制技术中的应用研究

发布时间：2018-05-07 16:11

本文选题：超级电容 + 电梯节能　；参考：《辽宁工程技术大学》2014年硕士论文

【摘要】：现代化进程的加快导致建筑能耗逐年提高,而电梯能耗目前占我国建筑能耗的7%-18%,电梯能耗成为近年来的研究重点。为改善传统的通过泄放电阻对电梯回馈能量的处理方法,本文提出了一种新型的电梯节能控制技术。首先,本文重点分析了电梯节能技术发展及现状,提出了基于超级电容储能的电梯节能控制系统,通过直流变换电路对其充放电过程进行实时控制。其次,本文设计了节能电梯超级电容储能控制系统方案,对电梯不同运行工况下曳引机的状态及能量流动进行了分析,确定了双向DC/DC变换器Buck和Boost工作模式下超级电容的充放电状态,提出了基于系统中电流和电压的双闭环控制策略。重点分析双向DC/DC变换器两种工作模式下的控制策略,通过建立小信号扰动数学模型,确定了两种情况下的闭环框图,通过Matlab做伯德图确定了控制系统PI调节器的参数。最后对整个系统进行了Matlab/Simulink仿真建模验证。最后,本文选用TI公司的TMS320F2812 DSP对前面所述系统进行控制,介绍了控制器产生PWM波原理,对控制器外围电路进行了整体设计,根据控制要求做出了控制系统程序流程。
[Abstract]:The acceleration of the modernization process leads to the increase of building energy consumption year by year, and the elevator energy consumption accounts for 7- 18 percent of the building energy consumption in our country at present. The elevator energy consumption has become the focus of research in recent years. In order to improve the traditional method to deal with the feedback energy of elevator by releasing resistor, a new energy saving control technology of elevator is proposed in this paper. Firstly, this paper analyzes the development and present situation of elevator energy saving technology, and puts forward an energy saving control system based on super capacitor, which can control the charging and discharging process of elevator by DC converter circuit. Secondly, this paper designs a super capacitor energy storage control system for energy saving elevator, and analyzes the status and energy flow of traction machine under different operating conditions. The charge-discharge states of supercapacitors in Buck and Boost mode of bi-directional DC/DC converters are determined. A double-closed-loop control strategy based on current and voltage in the system is proposed. The control strategy in two modes of bidirectional DC/DC converter is analyzed emphatically. By establishing the mathematical model of small signal disturbance, the closed-loop block diagram of the two cases is determined, and the parameters of the Pi regulator of the control system are determined by Matlab. Finally, the whole system is simulated and verified by Matlab/Simulink. Finally, TMS320F2812 DSP of TI Company is used to control the system, the principle of generating PWM wave is introduced, the peripheral circuit of the controller is designed, and the program flow of the control system is made according to the control requirements.
【学位授予单位】：辽宁工程技术大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TU857

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