Dual-loop control of transfer delay based PLL for fast dynamics in single-phase AC power systems
- Publication Type:
- Journal Article
- IET Power Electronics, 2019, 12 (13), pp. 3571 - 3581
- Issue Date:
|Dual-loop control of transfer delay based PLL for fast dynamics in single-phase AC power systems.pdf||Published Version||2.74 MB|
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© The Institution of Engineering and Technology 2019. Phase-locked loop (PLL) is commonly utilised for AC power systems to detect phase and frequency. With the increasing use of small-scale distributed power generation, the technique becomes widely available for grid interconnection of renewable power source into single-phase AC distribution network. Through comprehensive analysis and design, this study proposed a new approach that includes dual independent control loops to enhance the transfer delay-based PLL capability in terms of speed and accuracy. The effectiveness and advantages of the proposed PLL structure are demonstrated by numerical simulation and verified by experimental test.
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