scholarly journals Nonlinear Voltage Control for Three-Phase DC-AC Converters in Hybrid Systems: An Application of the PI-PBC Method

Electronics ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 847 ◽  
Author(s):  
Federico M. Serra ◽  
Lucas M. Fernández ◽  
Oscar D. Montoya ◽  
Walter Gil-González ◽  
Jesus C. Hernández
Keyword(s):  
Hybrid Systems ◽  
Direct Current ◽  
Output Voltage ◽  
Lyapunov Theory ◽  
Experimental Results ◽  
Proportional Integral ◽  
Three Phase ◽  
The Stability ◽  
Ac Converters ◽  
Lc Filter

In this paper, a proportional-integral passivity-based controller (PI-PBC) is proposed to regulate the amplitude and frequency of the three-phase output voltage in a direct-current alternating-current (DC-AC) converter with an LC filter. This converter is used to supply energy to AC loads in hybrid renewable based systems. The proposed strategy uses the well-known proportional-integral (PI) actions and guarantees the stability of the system by means of the Lyapunov theory. The proposed controller continues to maintain the simplicity and robustness of the PI controls using the Hamiltonian representation of the system, thereby ensuring stability and producing improvements in the performance. The performance of the proposed controller was validated based on simulation and experimental results after considering parametric variations and comparing them with classical approaches.

scholarly journals Model predictive control of multilevel cascaded converter with boosting capability – experimental results

2017 ◽  
Vol 65 (5) ◽  
pp. 589-599
Author(s):  
P. Wiatr ◽  
A. Kryński
Keyword(s):  
Model Predictive Control ◽  
Predictive Control ◽  
Output Voltage ◽  
Current Control ◽  
Experimental Results ◽  
Laboratory Model ◽  
Modular Construction ◽  
Three Phase ◽  
Cascaded Converter ◽  
Level Converter

Abstract The main goal of this paper is to present a five-level converter with the feature of output voltage boosting capability. Thanks to its modular construction and single DC source usage, 5LCHB converter becomes an important alternative for two-level converters operating with DC-DC converters that use bulky inductors. Furthermore, model predictive control (MPC) method is presented, which allows for boosting output voltage of presented converter while providing three-phase load current control and flying capacitor voltage stabilization. The last section describes a 5kVA laboratory model of five-level hybrid converter interfacing RL load and shows experimental results confirming theoretical analysis derived in previous sections.

A Novel Three-Phase Three-Level Inverter with Asymmetrical Legs

2014 ◽  
Vol 513-517 ◽  
pp. 3572-3576
Author(s):  
Jin Cheng Wei ◽  
Ke Huang ◽  
Xiao Chu Qiu ◽  
Rong Rong Huang
Keyword(s):  
Output Voltage ◽  
Experimental Results ◽  
Switching Strategy ◽  
Three Phase ◽  
Inverter Circuit ◽  
Structural Parts

A novel three-phase three-level inverter circuit with asymmetrical legs is proposed. The new prototype is very effective and efficient for improving the quality of the inverter output voltage. Firstly, the structural parts of the inverter are briefly described, then switching strategy and operational principles of the proposed inverter are explained and operational topologies are given. The proposed topology reduces the number of switches, losses, installation area and converter cost. Finally, the simulation and experimental results are provided to validate the effectiveness and advantages of the proposed configuration.

scholarly journals Implementasi DC-DC Boost Converter Menggunakan Arduino Berbasis Simulink Matlab

2020 ◽  
Vol 1 (2) ◽  
pp. 144-149
Author(s):  
Muldi Yuhendri ◽  
Randy Setiawan
Keyword(s):  
Direct Current ◽  
Output Voltage ◽  
Input Voltage ◽  
Voltage Regulation ◽  
Power Converter ◽  
Boost Converter ◽  
Experimental Results ◽  
Voltage Source ◽  
Matlab Simulink ◽  
Dc Voltage

Direct current (dc) voltage sources are one of the voltage sources most widely used for various purposes. Dc voltage can be obtained from a dc generator or by converting an ac voltage into a dc voltage using a power converter. There are several dc voltage levels that are commonly used by electrical and electronic equipment. To get a dc voltage that can be used for various equipment, then a dc voltage source must be varied according to the required. One way to get a variable dc voltage is to use a dc-dc converter. This research proposes a dc-dc boost converter that can increase the dc voltage with varying outputs. The boost converter is proposed using Arduino Uno as a controller with an input voltage of 12 volts. The converter output voltage regulation is implemented through Arduino programming using Matlab simulink. The experimental results show that the boost converter designed in this study has worked well as intended. This can be seen from the boost converter output voltage which is in accordance with the reference voltage entered in the Matlab simulink program

scholarly journals Improve the Stability of the Segmented Traction Drive by Reducing the Harmonics with Controller

2020 ◽  
Vol 9 (3S2) ◽  
pp. 14-18
Keyword(s):  
Traction Drive ◽  
Proportional Integral ◽  
Three Phase ◽  
The Stability

This paper represents, reduced harmonics in the three phase three module inverter. If the module number increases the Total-harmonics-distraction (THD) value of the traction drive reduced. And the THD value is tremendously reduced by using controller with three phase three module inverter. Here Proportional Integral (PI) is used as a controller. The THD values for the three modules with controller and simulink results are placed below. The performance a characteristic of the traction drive is improved compared with and without controller. And the simulink results are placed below.

scholarly journals Solar PV-Wind System Integration with Power Grid System

2021 ◽  
Vol 9 (VIII) ◽  
pp. 672-680
Author(s):  
Miss. Dhanashree S. Patil
Keyword(s):  
Power System ◽  
Hybrid Systems ◽  
Hybrid System ◽  
Output Voltage ◽  
Dc Voltage ◽  
Wind Speeds ◽  
Hybrid Power ◽  
Multi Level ◽  
Simulation Results ◽  
Lc Filter

This paper describes a photovoltaic (PV) and wind hybrid power system that is equipped with a Diode Clamped Multi-Level Inverter and LC filter for the generation of renewable energy. Due to their environmental friendliness and availability, wind and solar energy are ideal for hybrid systems in India. Due to fluctuations in the output voltage, equipment that require a consistent supply will be damaged by hybrid power systems that are completely dependent upon intermittent renewable energy sources. Matlab Simulink is used to create a model of the hybrid system using a Diode Clamped Multi-Level Inverter and an LC filter. Before merging a DC voltage hybrid system with the main grid of the power system, blocks such as the wind model, solar model, Diode Clamped Multi-Level Inverter, and LC filter are developed independently.... The input parameters for the project simulation include different irradiance values and varied wind speeds. Initially, a DC voltage hybrid system with the main grid of power system is constructed separately, taking into account the characteristics of the wind and photovoltaic models developed, as well as the simulation results for hybrid systems with and without Diode Clamped Multi-Level Inverters and LC filters. The input parameters for the project simulation include different irradiance values and varied wind speeds. Present are the wind and photovoltaic model characteristics, as well as simulation results for a hybrid system with and without a Diode Clamped Multi-Level Inverter and LC Filter. The results suggest that hybrid systems are more reliable in terms of generating output voltage than solo systems in this study. As well as this, the hybrid system's Diode Clamped Multi-Level Inverter and LC Filter can reduce output voltage fluctuations.

A Novel Three Phase Cascaded Multilevel Inverter

2013 ◽  
Vol 646 ◽  
pp. 249-258
Author(s):  
Sheng Wang ◽  
Jia Hua Zhong ◽  
Shao Dong Wang ◽  
Jin Ping He
Keyword(s):  
Control Strategy ◽  
Topological Structure ◽  
Output Voltage ◽  
Multilevel Inverter ◽  
Experimental Results ◽  
Phase System ◽  
Multilevel Converter ◽  
Three Phase ◽  
Simulation Results ◽  
Cascaded Multilevel Inverter

Based on the theory of H-bridge multilevel converter, the structure of a three phase cascaded multilevel inverter (LVCMI) and its control strategy are proposed in this paper. Several standard three-phase bridges can be reconnected into a new single three-phase bridge at ac-side. Simulation results show that such topological structure can increase the output voltage capacity and reduce the THD. It can be used as an inverter or rectifier in three phase system. In theory, it can be cascaded unlimitedly. The more cascaded, the higher output voltage and the lower THD. Experimental results of LVCMI with 3-module verified the feasibility of the proposed inverter.

Current mode fractional order PID control of wind-based quadratic boost converter inverter system with enhanced time response

Circuit World ◽  
2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Nandha Gopal J. ◽  
Muthuselvan N.B.
Keyword(s):  
Fractional Order ◽  
Digital Simulation ◽  
Synchronous Generator ◽  
Current Mode ◽  
Boost Converter ◽  
Time Response ◽  
Content Type ◽  
Proportional Integral ◽  
Three Phase ◽  
Ac Converters

Purpose The purpose of this paper is to enhance the response of quadratic boost converter inverter system (QBCIS) and also investigate proportional integral (PI) and fractional order proportional integral derivative (FOPID)-based space vector modulation inverter (SVMI) systems. Design/methodology/approach This paper presents modern expansion in control methods and power electronics have created wind-based AC to AC converters that relays to AC drives. The process includes the flow of quadratic boost converter (QBC) and SVMI locate their technique in associating permanent magnet synchronous generator and three phase load. This effort conveys with digital simulation using MATLAB/Simulink and hardware implementation of current mode wind-based QBCIS. Findings The direct current (DC) output from the rectifier is boosted using Quadratic Boost Converter (QBC). The DC yield of QBC is provided to the SVMI. The alternating current (AC) yield voltage is attained by using three-phase filter. The investigations are done with PI and FOPID-based SVMI systems. Current mode FOPID control is proposed to improve the time response of QBCIS system. Originality/value The simulation results are compared with the hardware results of QBCIS. The results of the comparison of PI with FOPID controlled by converters are made to show the improvement in terms of settling time and steady-state error.

Test of the stability of a three-phase contact line with negative line tension

1999 ◽  
Vol 96 (9) ◽  
pp. 1335-1339 ◽  
Author(s):  
ALAN E. VAN GIESSEN, DIRK JAN BUKMAN, B.
Keyword(s):  
Contact Line ◽  
Line Tension ◽  
Phase Contact ◽  
Three Phase ◽  
The Stability

Comparison of the Acoustic Noise caused by Output Voltage Harmonics on Three-Phase Voltage-Fed Inverters

2019 ◽  
Vol 139 (11) ◽  
pp. 901-907
Author(s):  
Jumpei Sawada ◽  
Shin-ichi Motegi ◽  
Yoshitaka Nakamura ◽  
Masaki Yamada
Keyword(s):  
Output Voltage ◽  
Acoustic Noise ◽  
Phase Voltage ◽  
Three Phase ◽  
Voltage Harmonics

Optimal Stator Design to Improve the Output Voltage of the Novel Three-Phase Doubly Salient Permanent Magnet Generator

2020 ◽  
Vol 8 (4) ◽  
pp. 118
Author(s):  
Vannakone Lounthavong ◽  
Warat Sriwannarat ◽  
Pattasad Seangwong ◽  
Apirat Siritaratiwat ◽  
Pirat Khunkitti
Keyword(s):  
Permanent Magnet ◽  
Output Voltage ◽  
The Novel ◽  
Three Phase ◽  
Doubly Salient ◽  
Stator Design ◽  
Permanent Magnet Generator
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