研究目的
To present a novel space vector modulation (SVM) scheme for effectively suppressing the leakage current in a CSI-based transformerless photovoltaic system.
研究成果
The active zero-state SVM (AZS-SVM) effectively mitigates high-frequency components in the CMV, leading to significant leakage current reduction in CSI-based transformerless PV systems, as verified by simulation results.
研究不足
The study is based on simulation results; experimental validation is not provided. The effectiveness of the proposed SVM scheme under varying environmental conditions and long-term operation is not explored.
1：Experimental Design and Method Selection:
A novel SVM scheme is proposed to mitigate leakage current by using active-state vectors instead of zero-state vectors.
2：Sample Selection and Data Sources:
Simulation is carried out on a three-phase current-source converter (CSC).
3：List of Experimental Equipment and Materials:
Not explicitly mentioned.
4：Experimental Procedures and Operational Workflow:
The proposed SVM scheme is compared with conventional SVM through simulation to assess its effectiveness in reducing high-frequency components in the common-mode voltage (CMV).
5：Data Analysis Methods:
The performance is evaluated based on the waveforms of grid currents, CMV, and harmonic spectrum analysis.
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