scholarly journals Cloud-based IoT Platform DC-DC Power Converter (Non-Ideal)

2021 ◽  
Vol 10 (4) ◽  
pp. 35-45
Author(s):  
Eng. Meshari J. AlJandal ◽  
◽  
Dr. Khaled S. AlRasheed ◽  
Eng. Muhammad R. Jamal ◽  
◽  
...  
Keyword(s):  
Performance Optimization ◽  
Pulse Width Modulation ◽  
Input Voltage ◽  
Power Converter ◽  
Boost Converter ◽  
Machine Learning Algorithms ◽  
Small Deviations ◽  
Loop Control ◽  
Digital Implementation ◽  
Dc Power

This paper describes a modularized smart system architecture which is integrated with Internet of Thing (IoT) into the DC-DC converters to build a programmable technique to leverage machine learning algorithms to predict possible future faults to the system. In addition, it facilitates the performance optimization of the boost converter. This system can be established with low computing hardware to simulates the control behavior and data-driven method of IoT-based, due to the unreliability initiated from the integration of IoT technology and power electronic converters. In response to these challenges, the current paper addresses a scientific approach using small signal analysis of dc-dc boost converter (non-Ideal) with closed loop control to analyze the small deviations or abnormalities in transient region and the steady-state operating point. Complete state-space analysis is done to obtain output voltage using pulse width modulation techniques for boosting the voltage of the input voltage to a higher level by momentarily storing and release the energy in the conductor. The model of the converter is designed and simulated using voltage mode controlling method. Digital implementation based on Arduino platform was implemented to compensate perturbations of sudden load variation either on voltage or current loads. A Simulation study is conducted to validate the result of the step-up dc-dc converter using MATLAB.

Desing and Implementation of a Microcontroller Based Buck Boost Converter as a Smooth Starter for Permanent Magnet Motor

2016 ◽  
Vol 1 (3) ◽  
pp. 566
Author(s):  
S. Ravi ◽  
Vitaliy Mezhuyev ◽  
K. Iyswarya Annapoorani ◽  
P. Sukumar
Keyword(s):  
Permanent Magnet ◽  
Input Signal ◽  
Pulse Width ◽  
Pulse Width Modulation ◽  
Power Converter ◽  
Boost Converter ◽  
Buck Converter ◽  
Permanent Magnet Motor ◽  
Dc Power ◽  
The Given

<p>This proposal proposes a DC/DC Buck Boost converter which has been used as a smooth starter for a DC Permanent Magnet Motor. In the existing system the DC/DC Buck Converter is used which provide the output less than the input Signal. Using buck converter it is difficult to increase the value of the input signal. Hence DC/DC Buck- Boost Converter used from which it is possible to get both the increased and decreased output from the given input. Previously pulse width modulation signals with respective to motor voltage is used. However they produce variations in the voltage and current of the motor. The above problem is overcome by using DC/DC Power converter. The proposed system with reduction in size, reduced ripples and increase in speed makes the system to operate at both low and high power applications. The proposed system results in higher efficiency, reduces the ripple content and the stress. The results are validated through MATLAB/Simulink and real time implementation.</p>

scholarly journals Non-isolated high step-up DC/DC power converter with coupled-inductor

2021 ◽  
Vol 104 (3_suppl) ◽  
pp. 003685042110270
Author(s):  
Van-Tsai Liu ◽  
Kuo-Ching Tseng ◽  
Yue-Han Wu
Keyword(s):  
Pulse Width Modulation ◽  
Single Pulse ◽  
Input Voltage ◽  
Power Converter ◽  
Maximum Efficiency ◽  
Leakage Inductance ◽  
Dc Power ◽  
High Voltage Gain ◽  
Active Switch ◽  
Voltage Spike

This paper presents a non-isolated single switch converter with high voltage gain. Its circuit topology is combined with coupled-inductor, clamp circuit, and voltage lift capacitor techniques. The proposed converter has several advantages: First, the circuit is controlled by only single pulse width modulation (PWM) for the power switch, which keeps the circuit simple. Secondly, the proposed converter is used as a clamping circuit,which let the energy of the leakage inductance can be circulated to the capacitor, so that the voltage spike on the active switch can be suppressed, and improves efficiency. This paper will introduce the principle of action, theoretical analysis, and experimental waveform in order. Finally, in the case of input voltage of 48 V, output voltage of 400 V, and output power of 1 kW, the performance of the proposed converter is verified. As a result, the maximum efficiency is up to 96.5% and full load efficiency is 92.3%.

Simulation and Experimentation of Fourth Order DC-DC Boost Converter for Renewable Energy Source Applications

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
S.B Mohanty ◽  
K.M Ravi Eswar ◽  
D. Elangovan ◽  
G. Arun Kumar
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Energy Storage ◽  
Fourth Order ◽  
Input Voltage ◽  
Boost Converter ◽  
Switching Frequency ◽  
Bacterial Foraging Optimization ◽  
Loop Control

In this paper, analysis and experimentation of a fourth order boost converter has been proposed for renewable energy source applications such as solar power. The output of proposed converter is fed to motor load of 220W. The main advantages of this converter are negligible current ripples at both source and load side and higher efficiency as compared to the conventional boost converter. The energy storage elements in circuit are designed and optimized using Bacterial Foraging Optimization Algorithm (BFOA) to solve the contradictory problems of steady state and dynamic performance of the system. The up-down glitch in control to output transfer function of system is reduced with the optimized values of energy storage elements in the proposed converter. Therefore dynamic response of system is analyzed with the designed values of inductor and capacitor. Closed loop control is introduced in the proposed system using proportional integral controller to maintain the output voltage constant when there is any load disturbance in the output side and wide variations in the input voltage. Simulation and hardware results of the proposed converter with input voltage of 60V and switching frequency of 100 kHz are presented.

scholarly journals Kontrol Kecepatan Motor Brushless DC Menggunakan Double Boost Converter Berbasis PI

CYCLOTRON ◽  
2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Gita Arya Pratama ◽  
M. Krisna Ramadhani Ananta ◽  
Rio Winas Setia Budi ◽  
Belly Yan Dewantara ◽  
Iradiratu K
Keyword(s):  
Output Voltage ◽  
Power Converter ◽  
Pi Controller ◽  
Boost Converter ◽  
Bldc Motor ◽  
Brushless Dc ◽  
Dc Power ◽  
Output Load ◽  
Motor Load ◽  
Converter Design

Abstrak— Paper ini menampilkan desain double boost converter yang mempunyai kemampuan menggandakan tegangan dua kali lipat berturut  turut beban DC yang menghasilkan tegangan output tambahan atau cadangan suplai pada beban. Pada umumnya double boost converter ini adalah konverter daya DC to Dc meningkatkan tegangan dari input (pasokan) ke output (beban) di desain menunjukkan bahwa dengan inputan sumber AC yang di searahkan terlebih dulu dengan converter penyearah berfungsi untuk mengatur kecepatan motor BLDC. Untuk pengontrolan pada beban motor menggunakan PI controller ( Proportional Integrator) dimana  parameter PI controller diperoleh dari trial eror. PI controller juga berfungsi memperbaiki gelombang keluaran dan kecepatan motor BLDC. Kata kunci : Motor BLDC, Double Boost Converter, PI controller. Abstract— This paper features a double boost converter design that has the ability to double the successive voltage in a DC load which results in an additional output voltage or supply reserve at load. In general, this double boost converter is a DC to Dc power converter increasing the voltage from input (supply) to output (load) in the design shows that the input AC source is aligned first with the rectifier converter to regulate the speed of the BLDC motor. To control the motor load using a PI controller (Proportional Integrator) where the PI controller parameter is obtained from the trial error. The PI controller also functions to improve the wave output and speed of the BLDC motor.

scholarly journals Design of closed-loop control for Solar PV based Multi-Level Inverter

2019 ◽  
Vol 9 (2S3) ◽  
pp. 123-129
Keyword(s):  
Closed Loop ◽  
Pulse Width Modulation ◽  
Input Voltage ◽  
Multilevel Inverter ◽  
Modulation Method ◽  
Closed Loop Control ◽  
Solar Pv ◽  
Loop Control ◽  
Switching Losses ◽  
Capacitor Voltage

Photovoltaic (PV) based multilevel inverters (MLI) have emerged as one of the best alternatives for grid/standalone applications. MLIs offer high range power handling capability with low current and voltage distortion and lesser switching losses as compare to the traditional two-level inverter. Major challenges with generally used multilevel inverter topologies relates to capacitor voltage variation, modulation techniques, and control. The major center of attention of research in this paper is to build up sophisticated modulation and voltage balancing methods for multilevel inverter topologies, competent to reach capacitor voltage parameter and to decrease power switching losses of the inverters. The present paper focuses on closed-loop control of multilevel flying capacitor inverter (FCI). In FCI, the phase shift (PS) based pulse width modulation method is designed and investigated. The closed-loop controller is designed with input voltage control of MLI, whose source is solar PV based Boost converter. Reported simulation results prove the superiority of the closed loop control in maintaining the desired output voltage for various reference values.

scholarly journals Modeling, Control and Design of DC-DC Boost Converter for Grid Connected Photo-Voltaic Applications

2012 ◽  
pp. 260-264
Author(s):  
Suneel Raju Pendem ◽  
Bidyadhar Subudhi
Keyword(s):  
Output Voltage ◽  
Pulse Width Modulation ◽  
Sliding Mode ◽  
Input Voltage ◽  
Boost Converter ◽  
Linear Feedback ◽  
Feedback Controllers ◽  
Control Switch ◽  
Modulation Signal ◽  
Constant Output

This article presents a design and development method of a DC-DC boost converter with constant output voltage. This system has a nonlinear dynamic behavior, as it works in switch-mode. Moreover, it is exposed to significant variations which may take this system away from nominal conditions, due to changes on the load or on the line voltage at the input. From a fluctuating or a variable input voltage, boost converter is able to step up the input voltage to a higher constant dc output voltage using the Non-linear feedback controllers such as PID controller and the Sliding Mode controllers. By this technique, the output of the converter is measured and compared with a reference voltage. The differential of the compared value will be used to produce a pulse width modulation signal to control switch in the boost converter. Simulation results describe the performance of the proposed design.

scholarly journals Analysis of a PWM Converter with Less Current Ripple, Wide Voltage Operation and Zero-Voltage Switching

Processes ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 580
Author(s):  
Bor-Ren Lin ◽  
Yi-Hao Peng
Keyword(s):  
Integrated Circuit ◽  
Pulse Width Modulation ◽  
Input Voltage ◽  
Power Converter ◽  
Switching Loss ◽  
Voltage Range ◽  
Zero Voltage Switching ◽  
General Phase ◽  
Zero Voltage ◽  
Current Ripple

This paper studies and implements a power converter to have less current ripple output and wide voltage input operation. A three-leg converter with different primary turns is presented on its high-voltage side to extend the input voltage range. The current doubler rectification circuit is adopted on the output side to have low current ripple capability. From the switching states of the three-leg converter, the presented circuit has two equivalent sub-circuits under different input voltage ranges (Vin = 120–270 V or 270–600 V). The general phase-shift pulse-width modulation is employed to control the presented converter so that power devices can be turned on at zero voltage in order to reduce switching loss. Compared to two-stage circuit topologies with a wide voltage input operation, the presented converter has the benefits of simple circuit structure, easy control algorithm using a general integrated circuit or digital controller, and less components. The performance of the presented circuit is confirmed and validated by an 800 W laboratory prototype.

Design and Implementation of a Novel High-Step-Up DC-DC Converter

2013 ◽  
Vol 284-287 ◽  
pp. 2498-2501 ◽  
Author(s):  
Chun An Cheng ◽  
Hung Liang Cheng ◽  
Chien Hsuan Chang ◽  
En Chih Chang ◽  
Fu Li Yang
Keyword(s):  
Power Conversion ◽  
Input Voltage ◽  
Power Converter ◽  
Voltage Level ◽  
Dc Voltage ◽  
Flyback Converter ◽  
Dc Power ◽  
Integrated Boost ◽  
High Output Voltage ◽  
High Output

This paper proposes a novel high-step-up DC-DC power converter for high output-voltage applications from a low level of input voltage. The presented power converter is composed of a integrated boost-flyback converter with two output windings plus cascaded voltage doublers to boost up the 12 V input voltage to a high DC voltage level of 400 V. Description of the presented DC-DC power conversion circuit, and experimental results of a prototype converter for providing 40W output power with a 12V input DC voltage are demonstrated.

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