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具有固有微分作用的非对称双边数字脉宽调制器

Asymmetric Dual-Edge Digital Pulsewidth Modulator With an Intrinsic Derivative Action

语言:

中文摘要

数字脉宽调制器(DPWM)在电力电子控制中常因采样、转换及计算延迟产生相位滞后。本文提出了一种基于非对称双边载波的全数字PWM调制策略,通过引入固有微分作用,有效补偿了控制系统的相位延迟,提升了闭环控制的动态响应性能。

English Abstract

Controls involving digital pulsewidth modulators (DPWMs) are usually characterized by a non-negligible phase delay due to the analog-to-digital conversion, sampling time, shape of the carrier, and algorithm computation time. Several strategies are proposed in the literature to mitigate this delay. This article features a full DPWM based on the asymmetric dual-edge carrier that successfully overcom...
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SunView 深度解读

该技术对阳光电源的核心产品线(如组串式光伏逆变器、PowerTitan储能变流器)具有重要应用价值。在当前高功率密度设计趋势下,控制环路的延迟是限制开关频率提升和动态性能优化的关键瓶颈。该非对称双边PWM调制策略通过硬件层面的逻辑优化,无需增加额外计算负担即可补偿相位滞后,能显著提升逆变器在弱电网环境下的并网稳定性及动态响应速度。建议研发团队在下一代高性能逆变器平台中评估该调制算法,以进一步优化控制带宽,提升产品在复杂电网环境下的适应能力。