Research on inverter control system based on bipolar and asymmetric regular sampled SPWM
Research on inverter control system based on bipolar and asymmetric regular sampled SPWM
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基于双极性非对称定时采样SPWM逆变器控制系统研究
DOI：
10.1109/icemi.2013.6743169
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Yang Jian
中科院分区：
文献类型：
--
作者：
Liao Haokai;Yang Jian
本文研究了基于双极性不对称规则采样SPWM的逆变器控制系统，系统选用TMS320F2812作为控制核心。由于其6个PWM输出分为3组，占空比的变化规律与正弦相同，有助于控制MOSFET的状态。本文给出了逆变器控制系统的硬件电路设计，根据SPWM的产生原理，在CCS环境下编写了程序代码，并记录了相应的PWM引脚输出。最后，由于所有控制精度高的条件都满足并发控制和无缝切换，本发明实现了对单相异步电动机转速的变频控制。
The inverter control system based on the bipolar and asymmetric regular sampled SPWM is researched in this paper The system chooses TMS320F2812 as its core of control. Thanks to its 6 outputs of PWM, which are divided into 3 groups, the changing law of the duty ratio is the same as the sine and helps to control the MOSFETs' statuses. In this research, the design of the hardware circuit of the inverter control system is given, the program codes are written under the environment of CCS according to the generation principle of SPWM, and the corresponding outputs of PWM pins are recorded. Finally, because all conditions with high control accuracy satisfy concurrent control and seamless shifting, the system achieves the goal that the revolving speed of the single-phase asynchronous motor is controlled in a variable frequency way.