摘要:模拟控制经过多年的发展,已经非常成熟,但它仍然存在很多不足之处, 随着DSP (数字信号处理器)的出现和发展,数字控制系统以其通用性强、抗干 扰能力强、控制规律灵活、可实现先进控制算法和便于实时控制等优点成为现代电力电子技术发展的方向之一。5547
以下是本文的研究内容:
1. PID控制逆变器控制系统数字化实现(逆变器数字控制技术)。其中包括对逆变器的构成与SPWM控制技术的研究以及逆变器闭环系统模型的研究,还有数字PWM的产生机制。
2. 基于DSP数字控制逆变器的硬件电路设计。其中对TMS320LF2407A芯片做了一些介绍,对于逆变器控制系统的硬件做了设计,还有对于数字信号处理器的硬件电路做了设计。
3. 基于DSP数字控制的逆变器的软件设计。其中主要是对数字PID控制技术和系统软件结构进行设计。
4. 基于DSP控制逆变器的设计与实现。主要是利用TMS320LF2407A构建一个1KVA的数字控制系统。
关键词: PID控制逆变器控制系统;DSP数字控制逆变器的硬件电路;逆变器的软件设计
DSP-based digital control of inverter design
Abstract:After developing many years, analog controller is very nature, but it also has many disadvantages. With appearance and development of DSP, the digital control system has advantages of flexible control, high integration, strong anti-disturb ability, the realization of advanced control arithmetic and the convenience of real-time control. Digital control has been becoming one direction of modern power electronics development. The following is a study of this article: 1. PID control inverter digital control system to achieve (inverter digital control technology). Including the composition of the inverter and SPWM control technologies as well as the inverter model of the closed-loop system, as well as the emergence of the digital PWM mechanism.
2. DSP-based digital control of inverter hardware circuit design. TMS320LF2407A chips
which have done something, the inverter control system for the hardware to do the design, as well as digital signal processors for hardware circuit design to do.
3. DSP-based digital control of inverter design software. Mainly on digital PID control technology and system software design structure.
4. To control the inverter based on DSP Design and Implementation. TMS320LF2407A mainly used to construct a digital control system 1KVA.
KeyWord:PID control system for inverter control; DSP digital control hardware inverter circuit; inverter design software
目录
1 绪论 1
1.1 引言 1
1.2 逆变器主要模拟控制技术 1
1.2.1 电压型控制技术 1
1.2.2 电流型控制技术 2
1.2.3 单周期控制技术 5
1.3 逆变器的数字控制技术和模拟控制技术 5
1.4 本文的主要定义与研究内容 8
2 逆变器的构成与SPWM控制技术 9
2.1 逆变器主电路结构 9
2.2 正弦脉宽调制逆变技术 10
2.2.1 双极性正弦脉宽调制 10
2.2.2 单极性正弦脉宽调制 10
2.2.3 倍频单极性正弦脉宽调制 11
2.2.4 SPWM逆变器调压性能的分析 11
2.3 逆变器闭环系统模型 12
2.3.1 系统模型 12
2.3.2 系统的稳定性 13
2.3.3 系统的外特性 14
2.4 数字PWM产生机制 14
2.4.1 非对称PWM的发生原理 14
2.4.2 对称PWM的发生原理 15 TMS320LF2407A基于DSP数字控制系统的逆变器设计:http://www.751com.cn/tongxin/lunwen_2613.html