基于FPGA的变频器惯性输出技术

The Technology of Inverter Inertia Output Based on FPGA

分析了级联多电平变频器的工作原理,针对相位移载波控制方法提出了基于 FPGA 的变频器惯性输出技术,使得变频器在 CPU 故障或复位期间能够持续输出,增强了变频器的稳定可靠性,扩展了其使用范围。仿真结果和实际样机的研制验证了该技术的可行性。随着惯性输出技术的日益成熟,其必将成为检验变频器的重要技术指标。

The operation principle of cascade multilevel inverter is analyzed and the technology of inverter inertia output based on FPGA is proposed for the control method of carder phase shifted. The inverter applied this technology can provide sustained output during the pedod of CPU fault and reset. Moreover, the inverter＇s stability and reliability has been improved and its use range has been extended. The simulation results and the successful development of the physical apparatus prove the feasibility of the technology proposed. With the development of the inertia output technology, the technology proposed would be the important technical index for the checkout of the inverter.