An Investigation of New Control Method for MPPT in PV Array using DC-DC Buck Boost Converter

2012 ◽  
Author(s):  
Amit Chouksey ◽  
Rajeev Shrivastava
Keyword(s):  
Control Method ◽  
Boost Converter ◽  
Pv Array

Proposed Topology for Voltage Sag Mitigation with New Control Strategy

2019 ◽  
Vol 15 (2) ◽  
pp. 138-144
Author(s):  
Adnan Diwan ◽  
Khalid Abdulhasan
Keyword(s):  
Duty Cycle ◽  
Control Strategy ◽  
Output Voltage ◽  
System Analysis ◽  
Control Method ◽  
Boost Converter ◽  
Voltage Sag ◽  
Voltage Sags ◽  
Long Duration ◽  
Simulation Results

voltage sags represent the greatest threat to the sensitive loads of industrial consumers, the microprocessor based-loads, and any electrical sensitive components. In this paper, a special topology is proposed to mitigate deep and long duration sags by using a modified AC to AC boost converter with a new control method. A boost converter is redesigned with a single switch to produces an output voltage that is linearly proportional to the duty cycle of the switch. On the other hand, the proposed control system is based on introducing a mathematical model that relates the missing voltage to the duty cycle of the boost converter switch. The simulation results along with the system analysis are presented to confirm the effectiveness and feasibility of the proposed circuit.

Daily Constant PV Output Power Supplying AC pumps using Batteries

2016 ◽  
Vol 2 (2) ◽  
pp. 275
Author(s):  
Mohamed Mahmoud Ismail
Keyword(s):  
Output Power ◽  
Boost Converter ◽  
Operating Conditions ◽  
Voltage Source ◽  
Maximum Power Point ◽  
Pv Array ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Three Phase ◽  
Power Point

This paper presents 200 KW three phase standalone photovoltaic systems supplying pumping station consist of four pumps 40 KW rating. The system utilizes a two stage energy conversion power conditioning unit topology composed of a DC-DC boost converter and three level-three phase voltage source inverter (VSI). The Boost converter in this paper is designed to operate in continuous mode and controlled for maximum power point tracking (MPPT). The fluctuating output power of the PV array system during the day is the commonly problem in the power system.  In this paper a nickel-Cadmium battery will be used to maintain the output power generated from the PV array supplying the pumps to be constant all the day under different operating conditions. The system is modeled and studied using MATLAB/Simulink

A Nonlinear Control Method for Bumpless Mode Transition in Noninverting Buck–Boost Converter

2021 ◽  
Vol 36 (2) ◽  
pp. 2166-2178
Author(s):  
Xing Weng ◽  
Zhengming Zhao ◽  
Kainan Chen ◽  
Liqiang Yuan ◽  
Ye Jiang
Keyword(s):  
Nonlinear Control ◽  
Control Method ◽  
Boost Converter ◽  
Mode Transition ◽  
Nonlinear Control Method

Design Method of a Boost DC-DC Converter Circuit

2014 ◽  
Vol 1039 ◽  
pp. 334-337
Author(s):  
Li Ran ◽  
Tian Cai Li ◽  
Gui Qin Li ◽  
Hong Bo Li ◽  
Xiao Yuan
Keyword(s):  
Control Method ◽  
Design Method ◽  
Power Conversion ◽  
Boost Converter ◽  
Industrial Equipment ◽  
Pwm Control ◽  
Direct Power ◽  
The Core

DC-DC converter is a kind of power conversion equipment. Electricity is the direct power for most mechanical industrial equipment currently. However, because of the diversity of mechanical industrial equipment, electricity should be transformed through power conversion equipment. This paper presents a DC-DC boost converter with PWM control method. The hardware and the structure of the core circuit is designed and the boost principle is interpreted. The detail of the configuration circuit around is described as well.

scholarly journals Improved Modulated Carrier Controlled PFC Boost Converter Using Charge Current Sensing Method

Energies ◽  
2018 ◽  
Vol 11 (4) ◽  
pp. 717 ◽  
Author(s):  
Jintae Kim ◽  
Chung-Yuen Won
Keyword(s):  
Control Method ◽  
Harmonic Distortion ◽  
Control Unit ◽  
Input Voltage ◽  
Boost Converter ◽  
Current Sensing ◽  
Voltage Range ◽  
Zero Current ◽  
Voltage Amplifier ◽  
Current Duration

An improved modulated carrier control (MCC) method is proposed to offer high power factor (PF) and low total harmonic distortion (THD) at a wide input voltage range and load variation. The conventional MCC method not only requires a multiplier and divider, but also is hard to be implemented with a micro controller unit without a high frequency oscillator. To overcome the problem and maintain the advantages of the conventional MCC method, the proposed MCC method adopts a current integrator, an output voltage amplifier, a zero-current duration (ZCD) demodulator of the boost inductor, and a carrier generator. Thus, it can remove a multiplier and well, as it allows for being operable with a general micro control unit. This paper presents an operation principle of the proposed control method. To verify the proposed control method, experimental results with 400 W PFC boost converter is demonstrated.

scholarly journals Performance Analysis of DC-DC Converters for Solar Water Pumping System Employing Switched Reluctance Motor Drive

2020 ◽  
Vol 9 (3S2) ◽  
pp. 24-28
Keyword(s):  
Permanent Magnets ◽  
Control Method ◽  
Switched Reluctance Motor ◽  
Boost Converter ◽  
Motor Drive ◽  
Optimum Level ◽  
Solar Pv ◽  
Pump System ◽  
Switched Reluctance ◽  
Reluctance Motor

The grail of this paper is to investigate the performance of various DC-DC converters for solar based water pump system incorporating switched reluctance motor drive. The Converters used are CUK converter, Buck-Boost converter and Boost converter respectively. The speed of the switched reluctance motor is regulated by the mid-point converter along with the various DC-DC converters. The Switched reluctance motor is adopted over other motors because of its low inertia, ease of control, speed range is wide, less losses as there is no windings nor permanent magnets Present on the rotor. In order to operate the solar PV array at its optimum level we employ maximum power point tracking (MPPT) and specifically Perturb and Observe control method is employed in this project. The proposed system deals with the design, modeling and simulation of three different types of converters using MATLAB/Simulink environment. The applicability of this system can be analyzed by the simulated results.

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