Design Of Inverter Based On TMS320LF2407A DSP SVPWM

With the development of power electronic technology and the development of thecontrol theory, and advanced control theory in power converter control application, thetraditional control technology can not meet our requirements. In a power converter controlsystem, in order to obtain the real-time, efficient control effect, high speed digital signalprocessor (DSP) is gradually used.For DC-AC voltage type converter, its control method isto change rapidly.In recent years, voltage three-phase inverter control with voltage spacevector PWM control technique.SVPWM control compared with SPWM control, the DCvoltage utilization rate is higher, in the regulation of fundamental voltage output size but alsocan reduce the harmonic, reduce the inverter switch conversion when the number of theoutput waveform, the same quality of the circumstances, the switch of the switch frequency islow.This technique has been widely used, has a very broad development prospect.In view ofthis, this article in has3kW inverter experiment platform based on, the development of aTMS320LF2407A based on DSP chip, with voltage space vector PWM control technology of30kW inverter prototype. This paper described the inverter operation principle of every partand its design method, completed the inverter hardware circuit and control software design,soft, hardware debugging.The main research contents are as follows:1. Analysis of pulse width modulation technology development status and various pulsewidth modulation mechanism.In this case the voltage space vector pulse width modulation(SVPWM) technology are emphatically introduced.2. Elaborated the software and hardware design and implementation method.3.Through hardware, software protection measures, improve the system stability,reliability.4. Voltage, current and fault with digital display.5.The design of the hardware and software of the system.The hardware circuit includesthe main circuit and control circuit; system software includes interrupt handler, PI regulation,various transform procedures, the use of these procedures to complete the digital control ofinverter.6. Demonstrated by testing the prototype meets design requirements.