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一种减少模块化多电平变换器电压传感器数量的新测量技术

New Measuring Technique for Reducing the Number of Voltage Sensors in Modular Multilevel Converters

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中文摘要

本文提出了一种利用较少电压传感器测量模块化多电平变换器(MMC)电容电压的新技术。该方法将每桥臂的最小电压传感器数量降至两个。通过对串联子模块组输出电压的测量,并在组内仅有一个子模块激活时进行采样,有效降低了硬件成本与系统复杂度。

English Abstract

This paper presents a new technique for measuring the capacitor voltages in a modular multilevel converter using a reduced number of voltage sensors. With this technique, the minimum number of voltage sensors per arm is two. Each sensor measures the output voltage of a set of submodules (SMs) connected in series and acquires a new measurement when there is only one SM activated within the set. The...
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SunView 深度解读

该技术对阳光电源的集中式逆变器及大型储能系统(如PowerTitan系列)具有重要参考价值。MMC拓扑常用于高压大功率场景,传感器数量的减少不仅能显著降低硬件成本,还能减少采样电路带来的故障点,提升系统可靠性。建议研发团队评估该方案在大型储能PCS中的可行性,特别是在高压直流侧子模块电压均衡控制中的应用,以优化系统集成度并降低运维难度。