一款基于单片机的高效数控逆变电源
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摘要
与传统逆变电源相比,采用数字控制的逆变电源能利用先进智能的控制算法来提升电源的性能。因此,设计和实现了一款基于高性价比STM32单片机的高效数控逆变电源。单片机生成两路死区时间可自适应调整的互补SPWM信号,经过IR2110驱动电路、全桥电路及低通滤波电路,在负载上得到幅度稳定和频率可调的交流信号。该逆变电源能准确产生频率范围为20～1 000 Hz(步进1 Hz)、调制深度可调及谐波分量少的正弦信号,电源逆变效率可达90%,应用前景较好。
Compared with the traditional inverter, the digital control inverter can use advanced and intelligent control algorithm to improve the performance of the inverter. Therefore, a high efficiency CNC inverter power supply based on high cost performance STM32 MCU is designed and realized. MCU generates two complementary SPWM signals with adaptive adjustment of dead zone time. After IR2110 drive circuit, full-bridge circuit and low-pass filter circuit, stable AC signals with adjustable amplitude and frequency can be obtained on the load. The inverter can accurately generate sinusoidal signals with a frequency range of 20 ～ 1 000 Hz(step 1 Hz), adjustable modulation depth, and low harmonic components. The inverter efficiency of the inverter can reach 90%, which has a good application prospect.
Compared with the traditional inverter, the digital control inverter can use advanced and intelligent control algorithm to improve the performance of the inverter. Therefore, a high efficiency CNC inverter power supply based on high cost performance STM32 MCU is designed and realized. MCU generates two complementary SPWM signals with adaptive adjustment of dead zone time. After IR2110 drive circuit, full-bridge circuit and low-pass filter circuit, stable AC signals with adjustable amplitude and frequency can be obtained on the load. The inverter can accurately generate sinusoidal signals with a frequency range of 20 ～ 1 000 Hz(step 1 Hz), adjustable modulation depth, and low harmonic components. The inverter efficiency of the inverter can reach 90%, which has a good application prospect.
引文
[1]黄应春.逆变电源数字化控制技术研究[J].工业设计,2015,(12):156-157.
[2]李珍珍.一种基于PID控制的数控直流稳压电源设计[J].科技视界,2018,(13):127-129.
[3]杨照辉,陈红娟.基于SPWM模块化逆变电源的研究与设计[J].电源技术,2014,(7):1349-1351.
[4]张琦.逆变电源数字化控制技术研究[D].西安:西安理工大学,2008.
[5]蔡保康.互补SPWM波信号源死区时间的控制[J].苏州丝绸工学院学报,1999,(5):56-58.
[6]郑高峰,杨淑霞,杨伟.基于逆变电源PWM控制技术的实现[J].移动电源与车辆,2017,(4):35-38.
[7]李逾晖.交直流开关电源数控系统设计及关键问题研究[D].杭州:浙江大学,2004.
[8]李丹.基于单片机的程控电源硬件设计[D].成都:电子科技大学,2013.
[2]李珍珍.一种基于PID控制的数控直流稳压电源设计[J].科技视界,2018,(13):127-129.
[3]杨照辉,陈红娟.基于SPWM模块化逆变电源的研究与设计[J].电源技术,2014,(7):1349-1351.
[4]张琦.逆变电源数字化控制技术研究[D].西安:西安理工大学,2008.
[5]蔡保康.互补SPWM波信号源死区时间的控制[J].苏州丝绸工学院学报,1999,(5):56-58.
[6]郑高峰,杨淑霞,杨伟.基于逆变电源PWM控制技术的实现[J].移动电源与车辆,2017,(4):35-38.
[7]李逾晖.交直流开关电源数控系统设计及关键问题研究[D].杭州:浙江大学,2004.
[8]李丹.基于单片机的程控电源硬件设计[D].成都:电子科技大学,2013.