Designing Inverters’ Current Controllers With Resonance Frequencies Cancellation


This paper presents an innovative and effective linear current regulator for grid-connected converters interfaced by an LCL filter. The proposed scheme entails the utilization of voltages measured at the terminals of the output filter capacitors as feedforward signals to be included in a very classical structure of proportional-resonant (PR) controller. Processing these signals by an opportune filter K(s), the resonance effects characterizing the LCL filter are neutralized and therefore the impact of the grid impedance's variations on the converter's performances is greatly reduced. The proposed resolution simplifies the controller's design, whose gains are obtained by a easy mathematical formula that prevents advanced root locus analyses. Moreover, for a given section margin, the proposed technique ensures the achievement of maximum attainable bandwidth of closed-loop system, sidestepping the guesswork typical of the conventional methods used for choosing the crossover frequency. Conclusions are supported by an in depth mathematical analysis and validated by laboratory results obtained with a seven.5-kW three-section inverter prototype connected to a power grid with time-variant impedance characteristics.

Did you like this research project?

To get this research project Guidelines, Training and Code... Click Here

PROJECT TITLE : Optimal Appointment Rule Design in an Outpatient Department ABSTRACT: Appointment systems are used by hospitals to manage patient access. The duration of the booking window, block capacity, and block service time
PROJECT TITLE :A Tale of Two Visions: Designing a Decentralized Transactive Electric SystemABSTRACT:Conversations about distributed resources, the transactive grid, and the future of the electrical industry abound with terms like
PROJECT TITLE :Designing Efficient Index-Digit Algorithms for CUDA GPU ArchitecturesABSTRACT:Trendy graphics processing units (GPUs) provide very high computing power at comparatively low cost. Nevertheless, designing economical
PROJECT TITLE :Lessons Learned from Designing Visualization DashboardsABSTRACT:A variety of visualization tips, principles, and techniques are available to assist create a visualization-based dashboard, however few publications
PROJECT TITLE :Designing Resource-on-Demand Strategies for Dense WLANsABSTRACT:Being low-cost and straightforward to deploy, dense WLANs are becoming the foremost standard answer to providing Web access in locations where the

Ready to Complete Your Academic MTech Project Work In Affordable Price ?

Project Enquiry