Overview of SOGI-Based Single-Phase Phase-Locked Loops for Grid Synchronization Under Complex Grid Conditions

Grid-voltage Synchronization Algorithms Based on Phase-locked Loop and Frequency-locked Loop for Power Converters

Synchronization of Grid Voltage for Solar and Wind Distributive Systems under Grid Faults by Using Advanced Phase Locked Loop Techniques

1PG Scholar, M.Tech, Power Systems, PRIYADARSHINI COLLEGE OF ENGINEERING AND TECHNOLOGY, NELLORE524004, SPSR Nellore (Dist.), AP, India, 2Assistant.Prof, M.Tech, PRIYADARSHINI COLLEGE OF ENGINEERING AND TECHNOLOGY, NELLORE-524004, SPSR Nellore(Dist.),AP,India, --------------------------------------------------------------------****----------------------------------------------------------------...

Optimization of the Lyapunov Based Nonlinear Controller Parameters in a Single-Phase Grid-Connected Inverter

In this paper, optimization of the backstepping controller parameters in a grid-connected single-phase inverter is studied using Imperialist competitive algorithm (ICA), Genetic Algorithm (GA) and Particle swarm optimization (PSO) algorithm. The controller is developed for the system based on state-space averaged model. By selection of a suitable Lyapunov function, stability of the proposed con...

An LCL-filtered Single-phase Multilevel Inverter for Grid Integration of PV Systems

Integration of the PV into the electrical grid needs power electronic interface. This power electronic interface should have some key features and should come up with grid codes. One of the important criteria is the quality and harmonic contents of the current being injected to the grid. High-order harmonics of the grid current should be very limited (lower than 0.3% of the fundamental current)...

Software Phase Locked Loop Design Using C2000TM Microcontrollers for Single Phase Grid Connected Inverter

Grid connected applications require an accurate estimate of the grid angle to feed power synchronously to the grid. This is achieved using a software phase locked loop (PLL). This application report discusses different challenges in the design of software phase locked loops and presents a methodology to design phase locked loops using C2000 controllers for single phase grid connection applicati...