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三相PWM逆变器中无电流传感器的死区畸变补偿

Current Sensor-Less Dead Time Distortion Compensation in Three-Phase PWM Inverter

语言:

中文摘要

死区畸变是PWM电压源逆变器(VSI)的典型问题,电流极性检测的准确性是补偿成功的关键。本文提出了一种基于幂函数的无电流传感器死区畸变补偿技术,旨在提升三相PWM逆变器的输出波形质量与控制精度。

English Abstract

Dead-time distortion is a typical problem in pulse width modulation (PWM) voltage source inverter (VSI). Accuracy in current polarity detection is a major issue in implementing dead-time distortion compensation successfully. This article proposes a power function-based current sensor-less dead-time distortion compensation technique in three-phase PWM VSI. The power function, when developed by appl...
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SunView 深度解读

该技术对阳光电源的组串式和集中式光伏逆变器具有重要应用价值。通过无电流传感器补偿死区畸变,不仅能降低硬件成本(减少电流采样电路依赖),还能在低电流工况下有效改善输出电流的总谐波失真(THD),提升电能质量。建议研发团队在iSolarCloud运维平台数据支撑下,将该算法集成至逆变器控制固件中,以增强产品在弱电网环境下的并网稳定性和抗干扰能力,进一步巩固阳光电源在逆变器控制领域的领先地位。