Comparative Performance Evaluation of Orthogonal-Signal-Generators-Based Single-Phase PLL Algorithms—A Survey

Abstract

Abstract-The orthogonal signal generator based phase-locked loops (OSG-PLLs) are among the most popular single-phase PLLs within the areas of power electronics and power systems, mainly because they are often easy to be implement and offer a robust performance against the grid disturbances. The main aim of this paper is to present a survey of the comparative performance evaluation among the state-of-the-art OSG-PLLs (include Delay-PLL, Deri-PLL, Park-PLL, SOGI-PLL, DOEC-PLL, VTD-PLL, CCF-PLL, and TPFA-PLL) under different grid disturbances such as voltage sags, phase and frequency jumps, and in the presence of dc offset, harmonic components, and white noise in their input. This analysis provides a useful insight about the advantages and disadvantages of these PLLs. The performance enhancement of Delay-PLL, Deri-PLL, and CCF-PLL by including a moving average (MAF) filter into their structure is another goal of this paper. . His research interests include phase-locked loop (PLL), AC/DC microgrids, power quality, grid-connected converters for renewable and DGs, active power filters and static synchronous compensators (STATCOMs). He has authored more than 20 ISI-indexed journal papers in the area of power electronics, power quality conditioners, and smart grid. He received Best Paper

Zero-Voltage Ride-Through Capability of Single-Phase Grid-Connected Photovoltaic Systems

“…In the grid-connected PV system, the grid synchronization is very important in the control system, as aforementioned [3,13,[21][22][23][24][25][26][27][28][29][30]. A good synchronization can help the system operate at unity power factor in the normal operational mode.…”

“…Meanwhile, when a grid voltage fault occurs, the PV system should respond immediately by switching to the grid fault operational mode instead of directly shutting down. Therefore, the PLL synchronization techniques should be of fast and accurate dynamics [25][26][27][28][29]. A general structure of a PLL system is shown in Figure 3.…”

“…The orthogonal signal generator (OSG)-based PD and the modified mixer PD using an adaptive notch filtering (ANF) structure are the desirable solutions, mainly beneficial from their simplicity, robustness and effectiveness [25][26][27][28][29]. Several different structures are established to implement the OSG system or the ANF function.…”

“…Thus, a lot of synchronization techniques can be found in the recent publications, such as the zero-crossing detection method [21,22], the Kalman filter (KF)-based synchronization method [23], and the discrete Fourier transform method [24], and the phase-locked loop (PLL) methods. The synchronization based on PLL techniques is very attractive among the various synchronization methods because of its easy implementation, high robustness and cost-effectiveness [2,[25][26][27][28][29].…”

Analysis of advanced inverter topology for renewable energy generation and energy storage integration into AC grid

“…The purpose of the orthogonal signal generator block (first elements from the left side till Park block) is to generate the orthogonal signal that can be used in Park transformation. For the orthogonal signal generation other methods also can be used, good comparison of methods is provided in [23]. Mathematics of Park transformation is used to detect the phase.…”