期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 31, 期 3, 页码 2139-2149出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2015.2428734
关键词
Harmonic distortion; inverters; phase-locked loops; photovoltaic systems; power quality; power system faults
资金
- Research Promotion Foundation (RPF, Cyprus) [KOINA/SOLAR-ERA.NET/0114/02]
- Energinet.dk (ForskEL, Denmark)
- SOLAR-ERA.NET (European Union)
The controllers of single-phase grid-tied inverters require improvements to enable distribution generation systems to meet the grid codes/standards with respect to power quality and the fault ride through capability. In that case, the response of the selected synchronization technique is crucial for the performance of the entire grid-tied inverter. In this paper, a new synchronization method with good dynamics and high accuracy under a highly distorted voltage is proposed. This method uses a Multiharmonic Decoupling Cell (MHDC), which thus can cancel out the oscillations on the synchronization signals due to the harmonic voltage distortion while maintaining the dynamic response of the synchronization. Therefore, the accurate and dynamic response of the proposed MHDC-PLL can be beneficial for the performance of the whole single-phase grid-tied inverter.
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