The power electronics industry is undergoing a revolution driven by an industry 4.0 perspective, with smart and green/hybrid energy management systems being the requirement of the future. There is a need to highlight the potential of fractional order control in power electronics for the highly efficient systems of tomorrow. This paper reviews the developments in fractional order control in power electronics ranging from stand-alone power converters, industrial drives and electric vehicles to renewable energy systems and management in smart grids and microgrids. Various controllers used in power electronics such as the fractional order PI/PID (FOPI/FOPID) and fractional-order sliding mode controllers have been discussed in detail. This review indicates that the plug-and-play type of intelligent fractional order systems needs to be developed for our sustainable future. The review also points out that there is tremendous scope for the design of modular fractional-order intelligent controllers. Such controllers can be embedded into power converters, resulting in smart power electronic systems that contribute to the faster and greener implementation of industry 4.0 standards.

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Fractional Order Control of Power Electronic Converters in Industrial Drives and Renewable Energy Systems: A Review

This paper presents an enhanced nonlinear PID (NPID) controller to follow a preselected speed profile of brushless DC motor drive system. This objective should be achieved regardless the parameter variations, and external disturbances. The performance of enhanced NPID controller will be investigated by comparing it with linear PID control and fractional order PID (FOPID) control. These controllers are tested for both speed regulation and speed tracking. The optimal parameters values of each control technique were obtained using Genetic Algorithm (GA) based on a certain cost function. Results shows that the proposed NPID controller has better performance among other techniques (PID and FOPID controller).

https://ijpeds.iaescore.com/index.php/IJPEDS/article/download/10003/11179

Performance Study of Enhanced Non-Linear PID Control Applied on Brushless DC Motor

Interleaved DC-DC converter with coupled inductor is used in standalone Photovoltaic, battery charger/discharger application. The main issue of the Interleaved DC-DC converter is that, it does not provide constant output voltage for a change in input voltage. Therefore, the converter efficiency is reduced. Hence to overcome this drawback, proper controller has to be used. In this paper, different control techniques such as PI, PID and Fuzzy logic controller are used. The simulation results of all three controllers were done using MATLAB/Simulink and compared. Fuzzy logic controller provides better regulated output voltage with less settling time of 0.04sec.

https://ijpeds.iaescore.com/index.php/IJPEDS/article/download/9490/11196

Comparison of Different Control Techniques for Interleaved DC-DC Converter

Solar Energy is one of the key solutions to future electrical power generation. Photovoltaic Plants (PV) are fast growing to satisfy electrical power demand. Different maximum power point tracking techniques (MPPT) are used to maximize PV systems generated power. In this paper, on grid PV system model in MATLAB SIMULINK is tested under sudden irradiance and cell temperature variations. Incremental Conductance MPPT is used to maximize generated power from the PV system with the help of new adaptive controller to withstand these heavy disturbances. The new adaptive controller is tuned for optimal operation using two different optimization techniques (Invasive weed and Harmony search).Optimization results for the two techniques are compared. .A robustness test is made to check system stability to withstand different random irradiance and cell temperature patterns without failure to track the maximum power point.Finally, a brief comparison is made with a previous literature and the new adaptive controller gives better results.

/pdf/enhancement-of-on-grid-pv-system-under-irradiance-and-3ir6rw6l98.pdf

Enhancement of On-grid PV System under Irradiance and Temperature Variations Using New Optimized Adaptive Controller

This paper presents the performance of a grid connected converter topology for PV array. The system containing solar cell, DC-DC boost converter, inverter and ac load (grid). This paper presents the simulation of a photovoltaic system using MATLAB, which can be representative of PV cell, module and array. The photovoltaic array is designed for 144 V. The proposed PV model was prepared on MATLAB scrip file and input parameters are solar irradiation and temperature. The output current and power characteristics of PV model are simulated for varying effects of temperature and solar irradiation. A DC-DC boost converter is used for boosting of DC voltage obtained from Photovoltaic system. A DCDC converter is designed for 600 V and inverter is for 230 V (rms). The sinusoid ac output voltage is inverted from dc-link voltage via inverter using sinusoidal Pulse-Width Modulation (SPWM) technique. The proposed converter topology is built in PSIM software. The proposed converter concept is verified with simulations results. Keywords— Photovoltaic module, DC/DC Boost Converter, PWM Inverter.

Modelling of Photovoltaic System with Converter Topology for Grid fed Operations.

Buck-boost converter is a good interface between PV and the load. This paper deals with comparison between PI and FOPID controlled PV fed Buck Boost Converter with Coupled Inductor (PVBBCCI) systems. Open loop PVBBCCI system, closed loop PI controlled PVBBCCI and FOPID based PVBBCCI systems are designed, modeled and simulated using Simulink and their results are presented. The investigations indicate the superior performance of FOPID controlled PVBBCCI system. The proposed system has advantages like reduced hardware count enhanced dynamic response and improved stability.

Fractional Order PID Controlled PV Buck Boost Converter with Coupled Inductor

In this paper, deals with detailed analysis between MOSFET and IGBT.  There always a race between MOSFET and IGBT in the power electronics markets. This paper will gives the complete details about them. This paper also discuss how they are used for various applications. By reading this paper any beginners who wants to need detailed analysis between IGBT and MOSGET they can get.

Comparative Analysis of Power switches MOFET and IGBT Used in Power Applications

Buck-Boost Converter with Coupled-Inductor (BBCCI) can be utilized to equivalent the DC-input source-voltage with the load-voltage. Current mode-regulator can be utilized to synchronize the output-voltage of the BBCCI system. Modeling and regulation of BBCCI becomes an important issue. This paper deals with modeling and simulation of closed-loop BBCCI system through current mode-regulator using MATLAB. The goal of this work is to enhance the lively response of the closed-loop BBCCI system utilizing current mode regulation. The closed-loop controlled BBCCI systems with voltage mode and current modes are modeled, simulated and the outcomes are analyzed. The outcomes denote that the lively response is improved using CM controller. The recommended system has benefits like low THD, low settling-time and steady-state error. The hardware is fabricated and tested. The experimental results match with the simulation results of BBCCI.

Current Mode Controlled PV Based Buck Boost Converter System Using Coupled Inductor with Reduced Current Ripple

Buck Boost Converter with Coupled Inductor (BBCCI) can be used to match the source voltage with the load voltage. This work deals with modelling and simulation of BBCCI system with hysteretic controller. The objective of this work is to improve dynamic response of closed loop BBCCI system using hysteretic controller. The closed loop controlled BBCCI systems with and without hysteretic controller are modelled, simulated and the results are analysed. The results indicate that the dynamic response is improved and current ripple is reduced using hysteretic controller. The proposed system has advantages like reduced THD, low settling time and steady state error

Photovoltaic based hysteretic controlled buck boost converter with coupled inductor

Buck Boost Converter with Coupled Inductor (BBCCI) can be to used match the DC input source voltage with the load voltage. The modeling and control of BBCCI becomes an important issue. This work deals with modeling and simulation of BBCCI system with proportional resonant (PR) controller. The objective of this work is to improve dynamic response of closed loop BBCCI system using PR controller. The closed loop controlled BBCCI systems with PI and PR controllers are modeled, simulated and the results are analyzed. The results indicate that the dynamic response is improved using PR controller. The proposed system has advantages like reduced THD, low settling time and steady state error. The hardware for BBCCI is tested and experimental results are compared with the simulation results.

D. Vanitha

Papers

Fractional Order PID Controlled PV Buck Boost Converter with Coupled Inductor

Comparative Analysis of Power switches MOFET and IGBT Used in Power Applications

Current Mode Controlled PV Based Buck Boost Converter System Using Coupled Inductor with Reduced Current Ripple

Photovoltaic based hysteretic controlled buck boost converter with coupled inductor

Photovoltaic based proportional resonant controlled buck boost converter with coupled inductor