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一种广义延迟信号消除锁相环的高效实现

An Efficient Implementation of Generalized Delayed Signal Cancellation PLL

语言:

中文摘要

电网电压基频正序分量的相位、频率和幅值对于并网电力电子设备的控制至关重要。本文受延迟信号消除(DSC)概念启发,提出了一种广义延迟信号消除锁相环(GDSC-PLL)的高效实现方法,旨在提升电网电压同步的准确性与动态响应速度,特别是在电网电压畸变或不平衡工况下表现优异。

English Abstract

The phase, frequency, and amplitude of the fundamental-frequency positive-sequence component of the grid voltage are crucial information in control of most grid-connected power electronic based equipment. Often, a standard phase-locked loop (PLL) with a prefiltering stage is employed for the extraction of this information. Inspired by the concept of delayed signal cancellation (DSC), the generaliz...
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SunView 深度解读

该技术对阳光电源的核心业务至关重要。在弱电网环境下,电网电压畸变严重,高效的锁相技术是确保组串式逆变器和PowerTitan储能变流器(PCS)稳定并网的前提。GDSC-PLL能够显著提升系统在复杂电网条件下的抗干扰能力和同步精度,对于提升阳光电源iSolarCloud智能运维平台下的电能质量监测水平,以及优化构网型(GFM)逆变器的控制策略具有直接的工程应用价值。建议研发团队将其集成至新一代控制算法库中,以增强产品在弱电网场景下的并网稳定性。