Search query: 3-phase grid-connected inverter application

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abstract: Abstract Because of the high cost of failure, the reliability performance of power semiconductor devices is becoming a more and more important and stringent factor in many energy conversion applications. Thus, the need for appropriate reliability analysis of the power electronics emerges. Due to its conventional approach, mainly based on failure statistics from the field, the reliability evaluation of the power devices is still a challenging task. In order to address the given problem, a reliability assessment platform is proposed in this paper. An advanced reliability design tool software, which can provide valuable reliability information based on given mission profiles and system specification is first developed and its main concept is presented. In order to facilitate the test and access to the loading and lifetime information of the power devices, a novel mission profile based stress emulator experimental setup is proposed and designed. The link between the stress emulator setup and the reliability tool software is highlighted. Finally, the reliability assessment platform is demonstrated on a 3 phase grid connected inverter application study case.
author_names: Ionut Vernica

Ke Ma

Frede Blaabjerg
title: Reliability assessment platform for the power semiconductor devices Study case on 3 phase grid connected inverter application
venue: Microelectron. Reliab.
year: 2017

abstract: Abstract Recently, a tendency in the growing of grid connected building integrated photovoltaic (BIPV) systems has been noticed in most countries. Hence, high penetration of PV power into the system network can be observed in many points in the network. This may cause severe problems on the distribution network due to the intermittent nature of PV systems. As a feasible solution, the reactive power capability of voltage source inverter in PV systems can be employed rather than approaching expensive grid infrastructures in the distribution network. The purpose of this study is to implement a 3 phase grid connected (BIPV) system with reactive power control to regulate the system voltage and improve the system power factor. Subsequent to this, a specific system model has been designed and developed in MATLAB Simulink application. The selection of PV system specifications is based on practical system implementation. The inverter control system along with the reactive power control has been developed for the proper system operation at different system conditions to reduce the var compensation on the utility grid. Better system accuracy of the developed system model has been found by validating with real system data. The overall system performance has indicated that the effective utilization of reactive power control of a grid connected PV system yields to a stable, reliable and cost effective system network operation which reduces the heavy burden on the utility grid to control the PV system effects.
author_names: Mohan Lal Kolhe

Mohamed J M A Rasul
title: 3 Phase grid connected building integrated photovoltaic system with reactive power control capability
year: 2020

abstract: Recently, a tendency in the growing of grid connected building integrated photovoltaic (BIPV) systems has been noticed in most countries. Hence, high penetration of PV power into the system network can be observed in many points in the network. This may cause severe problems in the distribution network originated by the intermittent behaviour of PV systems. As a feasible solution, the reactive power capability of voltage source inverter in PV systems can be employed rather than approaching expensive grid infrastructures in the distribution network. The purpose of this study is to implement a 3 phase grid connected BIPV system with reactive power control to regulate the system voltage and improve the system power factor. Subsequent to this, the system model is designed and developed in MATLAB Simulink application. The inverter control system along with the reactive power control is developed for the proper system operation at different system conditions to reduce the var compensation on the utility grid. A better system accuracy of the developed system model is verified by validating with real system data.
author_names: Mohamed J M A Rasul

Mohan Lal Kolhe
title: Reactive Power Control of a 3 phase Grid Connected Building Integrated Photovoltaic System
venue: IOP Conference Series: Materials Science and Engineering
year: 2019

abstract: The utilization of renewable energy sources nowadays is increasing rapidly due to the cheaper price of the photovoltaic cells, wind turbines or other renewable sources. But as a system, these sources usually require power converters either to provide the correct voltage to electric loads or to provide the required currents as in the grid connected application. Many converter topologies are developed for the grid connected applications and one of the topologies is the 3 phase boost inverter. This converter topology, although has a uni directional power flow, allows the low dc to high ac voltage direct conversion, thus the amount of the power switches is minimum. The particularity of this topology is its non linearity, where applying the linear control is somewhat more difficult. In this research, a hybrid control approach is proposed to this topology, the 3 phase converter is grid connected and the whole system is simulated using the PSIM software.
author_names: Tri Desmana Rachmildha

Mustafa Abbas Fadel

Yanuarsyah Haroen
title: Hybrid Control Method Applied on Grid Connected 3 phase Boost Inverter
venue: 2019 IEEE PES GTD Grand International Conference and Exposition Asia (GTD Asia)
year: 2019

abstract: Abstract In this research, FPGA implementation of high gain topologies are proposed for 3 phase grid connected quasi Z Source Inverter(qZSI) desirable for application that involve solar photovoltaic systems, like continuous input current configuration of qZSI with two switched impedance network. Identical with Diode Assisted quasi Z source inverter (DA qZSI) the newly introduced Partition input Union output Dual Impedance quasi Z Source Inverter (PUDL qZSI) topology achieves great boost factor inversion at low Shoot Through (ST) duty cycle and a higher Non Shoot Through (NST) period to yield an increased Total Harmonic Distortion (THD) output current. This research investigates about the working principles and assessment of the newly introduced PUDL qZSI with continuous input PV current configured two switched impedance networks and thereafter it is comparable with qZSI, and DA qZSI. The topologies analysis is performed in the steady state and the validation of their dynamic performances are carried out using the simulated results obtained from MATLAB/Simulink. In addition, the experimental results shows that the proposed FPGA based controller achieve a good performance at small calculation time, which is precise for PUDL qZSI PV based grid connected system.
author_names: S Victor P Selvakumar

V Kamatchi Kannan
title: FPGA based PV grid connected inverter using partition input union output dual impedance qZSI
venue: Microprocess. Microsystems
year: 2020

abstract: Second and third order passive filters (LC and LCL) are interesting filters to use for grid connected PWM inverters. Because of the stability problems of this filter around resonance frequency, series and damping resistor can be add to an LCL filter. However, the resistor value has impact on the filter respond, voltage and current harmonic distortion and system power loss. In this paper, the mathematic characteristics of LC, LCL filter, series and parallel damping LCL filters will be described with their design to apply in 3 phase PV grid connected inverter. And, simulations are used to validate the theoretical analysis of the filters on filter performance and power quality of the grid in 3 phase grid connected inverter. Keywordfilter design, LCL filter, Passive resonance damping, harmonic, Grid connected inverter and power quality
author_names: Mojgan Hojabri

Mehrdad Hojabri

Arash Toudeshki
title: PASSIVE DAMPING FILTER DESIGN AND APPLICATION FOR THREE PHASE PV GRID CONNECTED INVERTER
year: 2015

abstract: In this paper author discussed PI and fuzzy controllers with the three phase inverter concept and this converter connected to induction motor drive as load. This presents a unified control strategy that enables both islanded and grid tied operations of three phase inverter in distributed generation, with no need for switching between two corresponding controllers or critical islanding detection. Intentional islanding describes the condition in which a microgrid or a portion of the power grid, which consists of a load and a distributed generation (DG) system, is isolated from the remainder of the utility system. When the microgrid is cut off from the main grid, each DG inverter system must detect this islanding situation and must switch to a voltage control mode. The control strategy composes of an inner inductor current loop, and a novel voltage loop in the synchronous reference frame. Induction motor is one of the load in grid. The inverter is regulated as a current source just by the inner inductor current loop in grid tied operation, and the voltage controller is automatically activated to regulate the load voltage upon the occurrence of islanding. This paper mainly depends on PI and fuzzy controller by using fuzzy controller to improve the power quality compare to PI controller. The proposed converter tested with Matlab/simulink software.
author_names: Kolla Uma

Chandramouli Srinivas
title: FUZZY CONTROLLER BASED 3 PHASE INVERTER FOR MICRO GRID WITH INDUCTION MOTOR DRIVE APPLICATION
year: 2014

abstract: The renewable energy market is expanding, and this creates a demand for efficient control for energy conversion. Most renewable energy is harnessed as DC and needs to be converted into 3 phase voltage with a voltage source inverter (VSI) to be connected to the grid. PI control is commonly utilized to control the VSI. It provides good steady state performance but suffers from poor disturbance rejection and limited bandwidth. This paper introduces the application of an \mathcal{L}_\infty feedback control; an iterative algorithm based on LMIs (Linear Matrix Inequalities) The control objective is to provide the grid voltage and regulate the real and reactive power injected to the grid. The performance of the proposed control scheme is validated analytically and through Matlab/Simulink simulations under nominal conditions, input voltage disturbances and grid impedance uncertainties. The proposed method is compared with existing method (PI controller) showing that the proposed scheme can provide better reference tracking, and improved transient and steady state performance with low implementation cost.
author_names: Daniela Caneque Fernandez

Sara Ahmed

Ahmad F Taha
title: An L Feedback Control Strategy for Grid Connected Three Phase Voltage Source Inverters
venue: 2020 IEEE Applied Power Electronics Conference and Exposition (APEC)
year: 2020

abstract: Second and third order passive filters (LC and LCL) are interesting filters to use for grid connected PWM inverters. Because of the stability problems of these filters around resonance frequency, series and damping resistor can be add to an LCL filter. However, the resistor value has impact on the filter respond, voltage and current harmonic distortion and filter power loss. In this paper, the mathematic characteristics of LC, LCL filter, series and parallel damping LCL filters will be described with their design to apply in 3 phase PV grid connected inverter. And, simulations have down to validate the theoretical analysis of the filters on filter performance, power quality and filter power loss for 3 phase grid connected renewable energy system application.
author_names: Mojgan Hojabri

Mehrdad Hojabri
title: Design, Application and Comparison of Passive Filters for Three Phase Grid Connected Renewable Energy Systems
year: 2015

abstract: The application of photovoltaic (PV) as a source of electrical energy in the distributed generation (DG) systems are gaining more attention with the advances in power electronics technology. The one of the key technologies in the PV based DG systems is grid connected inverter that is utilized to interface PV power systems into the utility grid. Multilevel multifunctional grid connected inverters (ML MFGCIs) are new breed of power converter used in large scale PV applications and have superior advantages such as lower switching power dissipation, lower harmonic distortion and lower electromagnetic interference (EMI) outputs. ML MFGCIs perform the high quality power from PV systems and provide flexible functionality with improved power quality (PQ) voltage and reactive power support and increased capability of the auxiliary service for the utility grid. This paper presents a detailed analysis of various ML MFGCI configurations for 1 phase and 3 phase systems and control strategies to compensate the different PQ problems. Almost 100 papers including the practical applications and recent research studies on ML MFGCIs are reviewed and analysed.
author_names: Mohammad Barghi Latran

Ahmet Teke
title: Investigation of multilevel multifunctional grid connected inverter topologies and control strategies used in photovoltaic systems
year: 2015