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Common mode voltage and grounding method: overlooked current measurement interference sources in photovoltaic systems
In photovoltaic inverters and energy storage conversion systems, when there is abnormal jitter, unstable zero point, or inconsistent performance of different machines in current measurement, the problem is often first attributed to sensor accuracy or device consistency. However, in multiple on-site problem analyses, a less intuitive but frequently occurring influencing factor gradually emerged – common […]
