In this paper a digital controller has been developed based on Field Programmable Gate Arrays (FPGA) to improve the quality of output (o/p) waveforms produced from a direct matrix converter (DMC), for o/p frequencies higher than the input frequency. In order to reduce the harmonics (present in the o/p voltage waveforms), the performance of proposed DMC is analysed by applying an advanced modulation technique, “Trapezoidal modulation (TM)”. The observed total harmonic distortion (THD) associated with the o/p voltage waveforms is reduced to a satisfactory level with the application of TM. The developed hardware arrangement is quite compact. Working of the proposed digital controller for the DMC has been successfully verified for a range of the o/p frequency, f₀ values extending from 100 Hz to 50 kHz.

中文翻译：

---

梯形调制直接矩阵转换器：用于更高频率的AC / AC转换

在本文中，已经开发了一种基于现场可编程门阵列（FPGA）的数字控制器，以提高o / p频率高于输入频率的直接矩阵转换器（DMC）产生的输出（o / p）波形的质量。 。为了减少谐波（存在于o / p电压波形中），通过应用先进的调制技术“梯形调制（TM）”来分析建议的DMC的性能。使用TM可以将观察到的与o / p电压波形相关的总谐波失真（THD）降低到令人满意的水平。所开发的硬件布置非常紧凑。所建议的DMC数字控制器的工作已经成功地在o / p频率范围内进行了验证，f ₀值从100 Hz扩展到50 kHz。