NDLI: Design of a robust H∞ current controller for grid-connected photovoltaic systems based on cascaded multilevel inverter

Content Provider	IET Digital Library
Author	Silva, Andre Felicio de Sousa Pimentel, Sergio Pires Marra, Enes Goncalves Alvarenga, Bernardo Pinheiro de
Abstract	This work proposes a design method for robust state feedback H ∞ grid current controller applied to single-phase grid-connected photovoltaic (PV) systems. The proposed method achieved high system reliability even dealing with grid distorted voltages and other power quality issues. The robustness of the H ∞ controller was verified in the face of parametric uncertainties at the first-order output filter, and also a satisfactory disturbance rejection performance was achieved. The proposed design is based on linear matrix inequalities associated with constraints involving H ∞ optimisation and a pole placement analysis on the continuous-time domain. A discrete-time analysis is also presented in order to indicate the simplicity of its implementation by a microcontroller or similar devices. Based on the presented results and in order to validate the proposed controller, its robust performance was compared with two linear and well-known control methods: a classical PI controller, in terms of robustness; and a robust H ∞ resonant controller, regarding the power quality at the connection point with the grid-utility. Although the conclusions were listed regarding a low voltage PV grid-interactive multilevel power converter, the proposed H ∞ control design (and its concepts) can be applied to a great variety of renewable energy resources systems.
Starting Page	713
Ending Page	724
Page Count	12
ISSN	17521416
Volume Number	14
e-ISSN	17521424
Issue Number	Issue 5, Apr (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rpg/14/5
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.0526
Journal	IET Renewable Power Generation
Publisher Date	2020-01-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Algebra Cascaded Multilevel Inverter Classical PI Controller Connection Point Continuous Time System Continuous-time Domain Control Design Control of Electric Power System Control System Analysis Control System Synthesis Current Control Discrete Control System Discrete Time System Discrete-time Analysis Disturbance Rejection Electric Current Control First-order Output Filter Grid Current Controller Grid Distorted Voltage Grid-utility Harmonics High System Reliability H∞ Control H∞ Current Controller H∞ Optimisation Invertors Linear Matrix Inequalities LMI Low Voltage PV Grid-interactive Multilevel Power Converter Microcontroller Optimal Control Optimisation Technique Parametric Uncertainty Photovoltaic Power System PI Control Pole Assignment Pole Placement Analysis Power Converter Power Generation Control Power Generation Reliability Power Grid Power Quality Power Quality Issues Power Supplies to Apparatus Power Supply Quality Reliability Renewable Energy ReSource System Resonant Controller Robust Control Robust Performance Robust State Feedback Single-phase Grid-connected Photovoltaic System Solar Power Stations Stability in Control Theory State Feedback Synthesis Method Uncertain System
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Optimised PI-4VPI current controller for three-phase grid-integrated photovoltaic inverter under grid voltage distortions

Control of asymmetrical cascaded multilevel inverter for a grid-connected photovoltaic system

Thermal analysis and reliability evaluation of cascaded H-bridge MLPVI for grid-connected applications

Offset-free feedback linearisation control of a three-phase grid-connected photovoltaic system

Modelling and controller design of quasi-Z-source cascaded multilevel inverter-based three-phase grid-tie photovoltaic power system

Robust nested loop control scheme for LCL-filtered inverter-based DG unit in grid-connected and islanded modes

Cascaded H bridge multilevel inverter control for grid connected DC power source

Cascaded controller for a standalone microgrid-connected inverter based on triple-action controller and particle swarm optimisation

Model predictive current control based on a generalised adjacent voltage vectors approach for multilevel inverters

Design of a robust H∞ current controller for grid-connected photovoltaic systems based on cascaded multilevel inverter

Similar Documents

Optimised PI-4VPI current controller for three-phase grid-integrated photovoltaic inverter under grid voltage distortions

Control of asymmetrical cascaded multilevel inverter for a grid-connected photovoltaic system

Thermal analysis and reliability evaluation of cascaded H-bridge MLPVI for grid-connected applications

Offset-free feedback linearisation control of a three-phase grid-connected photovoltaic system

Modelling and controller design of quasi-Z-source cascaded multilevel inverter-based three-phase grid-tie photovoltaic power system

Robust nested loop control scheme for LCL-filtered inverter-based DG unit in grid-connected and islanded modes

Cascaded H bridge multilevel inverter control for grid connected DC power source

Cascaded controller for a standalone microgrid-connected inverter based on triple-action controller and particle swarm optimisation

Model predictive current control based on a generalised adjacent voltage vectors approach for multilevel inverters

Design of a robust H∞ current controller for grid-connected photovoltaic systems based on cascaded multilevel inverter