Proceedings of International Conference on Power Electronics and Renewable Energy Systems

Table of Contents

1. Frontmatter

2. Deep CNN Depth Decision in Intra Prediction

   Helen K. Joy, Manjunath R. Kounte

   Abstract

   The video and its compression become prominent with the emergence of digital video technology and common use of video acquisition devices. The traditional video compression needs upgradation with artificial intelligence, machine learning, neural network, and deep learning. Apart from normal signal processing the deep learning technologies are advantages as they can deal with content analysis than dealing only with neighboring pixels. The initial steps in video compression, intra/inter frame prediction provide a better percentage in overall compression. The computational complexity of existing intra prediction method is more. This paper proposes a deep learning based intra prediction method using CNN. This deep depth prediction algorithm trains the network to provide depth of the CTU with reduced computation and less time. The experimental results show a dip in the encoding time, about 71.3% compared to existing method.

3. Investigation of Electrical Characteristics for Different Geometrical Dimensions of 11 kV Insulators Under Finite Element Method

   R. Bharanidharan, R. V. Maheswari

   Abstract

   In the power system, the occurrence of a short circuit in transmission lines is the major challenge in planning, designing, and operating with an excessive high-voltage. The new model incorporates the actual geometrical two dimensions of insulators, property of materials, and self-adaptive measurement of the components. 11-kV non-ceramic insulator designs are simulated using ANSYS software. The insulators are free from contamination. Finite element method (FEM) is a numerical method with 2–3 space variables to solve partial differential equations is employed to identify the electrical stress issues in high-voltage fields. For all surface conditions, the electric field distribution, maximum electrical field strength and its location, voltage distribution, and heat generated on the surface are examined. The simulation findings were introduced and analyzed for non-ceramic insulator designs.

4. Non-isolated Multilevel Zeta Converter for MLI Application

   Marikannu Marimuthu, Subramanian Vijayalakshmi, B. Paranthagan, R. Venugopal, S. Srinithi, B. Yuvaraj, R. Soundarajan, S. K. Vasantha Kumar

   Abstract

   A new multilevel zeta converter which converts fixed DC voltage to multilevel DC output voltage is discussed in this paper. Proposed converter has stable voltage feedback capacity and produces high gain output voltages with less input current. Voltage supplied by the PV panel or the fuel cell is at an output of a low voltage. These output voltages can be interfaced with standalone (or) grid connected inverter system by employing the proposed converter. By using a single transistor with the multilevel capacitor geometric structure, the proposed converter is able to generate an output voltage that is much higher and has ripple free output current with a higher step-up conversion ratio. It allows for operation at much higher frequencies for a much longer period of time. Additionally, it does not require for the electrical transformer for high gain. The output of the zeta converter generates four output level voltages which are simulated and verified with theoretical results.

5. Corrupted Image Enhancement Through WaveNet: A Hybrid Approach

   C. Vimala, P. Aruna Priya

   Abstract

   A denoising method for medical images through hybrid technique is presented in this paper. The hybrid technique is the combination of wavelet and neural network (WaveNet). Proposed algorithm has been validated through benchmark image, and medical images both are degraded by the variety of noise density through Gaussian noise and visual property. The performances of denoised images are also analyzed with wavelet techniques and compare the results with proposed technique. The proposed strategy is developed in MATLAB platform. Simulation results are evidence for the proposed work

6. Modeling and Control of Cascaded Multilevel Inverter for Harmonics Mitigation of Induction Motor Drive

   Ranganathan Selvarasu, C. Kannan, S. Priyadharsini, Dagne Alemayehu Shiferaw

   Abstract

   Nowadays the majority of the industrial drives are employed with induction motors as a load. Induction motor receives input from the output of MLIs, which requires quality power in terms of lower or negligible total harmonic distortion (THD). In order to provide quality power, in this paper, modeling of cascaded multilevel inverter (MLI) for harmonics mitigation of induction motor is proposed. In recent years, cascaded H-bridge MLI technology has emerged as a crucial to offer a quality output for industrial drives. In this work, three-phase five- and seven-level inverters are developed, modeled and simulation carried out using MATLAB/Simulink. Comparisons of simulation as well as prototype solutions are presented.

7. Assessment of Various Vector Control Schemes for PMSM Drive Application

   Kodumur Meesala Ravi Eswar, Chokkalingam Bharatiraja, Jayakumar Vinoth

   Abstract

   Currently, the operation of Finite Control Set Model Predictive Control (FCS-MPC) schemes in electric motor drives domain is emerging. Its distinguished features are: intuitive, simple and easy insertion of multi-objectives. The application of FCS-MPC in permanent magnet synchronous motor (PMSM) drive has several benefits in terms of improving the performance when compared with direct torque control (DTC)-operated PMSM drive. The FCS-MPC scheme is categorized into two: predictive torque control (PTC) and predictive current control (PCC). This paper deals with comparative evaluation of these control schemes for PMSM drive operation concerning flux and torque ripple, and current THD. Therefore, the gained results are analyzed for PMSM drive highlighting the benefits of FCS-MPC over DTC.

8. Design and Implementation of Discrete Controller-Based Zeta Converter for Solar Power Applications

   R. Uthirasamy, V. Kumar Chinnaiyan, U. S. Ragupathy, S. Vishnu Kumar

   Abstract

   In this paper, a closed-loop discrete controller is implemented for Zeta converter modules. Discrete controller offers good dynamic response, fine voltage regulation, and it can be programmable without external passive components. Zeta converter is capable of producing non-pulsating output current and has good adaptability. An analog proportional–integral–derivative (PID) and discrete PID controllers are designed, and their performances are compared. Effectiveness of the controllers is demonstrated and validated with experimental results. Achieved result shows that the discrete controller provides good transient response. Further, the performance of connecting dual snubber with Zeta converter has been analyzed. Dual snubber is connected in the Zeta converter, and the conducted EMI results have been observed. Simulation model of a solar module and Zeta converter to control the voltage to the DC motor has been developed using PSPICE software. From the experimental results, it is inferred that the dual snubber reduces the switching losses and suppresses the dv/dt and di/dt effects.

9. Structural Optimization of LMS Adaptive Filter Using Multi-stage Cascaded Configuration

   S. Hannah Pauline, Samiappan Dhanalakshmi, R. Kumar

   Abstract

   In telecommunication systems, the most crucial challenge is to recover a signal corrupted by noise. Adaptive filters are widely utilized for signal de-noising applications with least mean square adaptive algorithm being the most desired. Even though LMS algorithm is simple in structure and robust; it suffers from slow convergence speed and has high mean square error (MSE) value. Therefore, in this paper, we introduce a structural optimization of adaptive filters using conventional LMS adaptive algorithm. Here, a multi-stage cascaded LMS adaptive filter model is proposed for adaptive noise cancellation (ANC) systems, and the novelty is that the number of filter stages to be cascaded is adjusted automatically to provide optimum performance. The simulation is carried out for a signal de-noising application and the efficiency of the proposed filter model is tested with regards to MSE, SNR and ANR. The advantages of the proposed filter model are proved in the results.

10. THD Optimization with Low Switching Frequency Control for 15-Level Reduced Switch Asymmetric Multilevel Inverter

    Gireesh Kumar Devineni, Aman Ganesh, Neerudi Bhoopal, D. S. N. M. Rao

    Abstract

    The switching modulation techniques of high switching frequencies are not recommended in medium voltage drive applications with a power of megawatts because of high power losses and low converter performance. Fundamental strategies like selective harmonic elimination (SHE) are a popular alternative. Since the transcendental equations formulated by SHE are simply nonlinear in nature, it has proven to be an important challenge for the scientists to achieve a viable solution on the desired modulation index. This article presents the comparison analysis of the GA and PSO approach with good initial guess, and its hybrid optimization of PSO-GA is used for solution of the SHE equation set to various modulation index values. The %THD generated at various modulation index values is also consistent with the harmonic standards of IEEE 519-1992.

11. Signal Conditioning Circuits for GMR Sensor in Biomedical Applications

    G. Anand, T. Thyagarajan, B. Aashique Roshan, L. Rajeshwar, R. Shyam Balaji

    Abstract

    Superparamagnetic nanoparticles offer a wide range of applications in the emerging field of electronic devices. Recent developments have identified them as components for a new type of magnetoresistance sensor. A novel measuring method is used where increased field sensitivity is bought at the value of an inherent device noise. The proposed GMR sensor has many advantages, yet its output is feeble due to noise, and hence, there is a requirement for designing a signal conditioning circuit to improve the signal strength. The objective is to analyze the low concentration (sample) with a better signal conditioning circuit for the GMR sensor.

12. Modeling and Simulation of SPVGC System Using Conventional Controller

    P. Chandra Babu, B. Venkata Prasanth, P. Sujatha

    Abstract

    This article addresses the system connected to the solar PV grid by the DC to DC converter and inverter (VSC) for the supply of electricity to the power grid, addressing the major device elements, which include the first one 20-kW solar array, second one grid side inverter and third one boost converter, mathematical modeling and THD change by irradiation effect. This paper begins with a PV system model, simulation circuit and discussion. This paper has a concise overview of all part included in this system and considers environmental temperature and solar radiation practical data at BVRIT campus. It also addressed a common algorithm for MPP monitoring. The results of simulations demonstrate how the variations in solar radiations will influence the production of any PV module and shows THD of the photovoltaic-grid connected.

13. Study of the Operating Parameters of a Two-Bed Adsorption System: Comparison Between the Silica–Gel–Water and Zeolite–Water Pairs

    Mouhamadou Lamine Cisse, Biram Dieng

    Abstract

    The aim of this work is to model firstly the different components of a two-bed adsorption cooling system with continuous cold production fed by hot water from biogas or thermal sensors, then in a second step, to the numerical resolution in order to determine the evolution of the various temperatures at the level of the adsorber, the desorber, and to evaluate the COPs. For the validation of the model, the zeolite–water couple was compared with the literature. The results of the analysis show that the COP of zeolite–water is 0.38, lower than that of silica–gel–water which is 0.62. The evaporating temperature reached is between 0 and 5 °C and the cooling temperature between 8.01 and 8.55 °C. This temperature range is acceptable as it is intended for dairy products. The variation in the desorbed fraction is between 1.36 and 1.47 kg/kg s (decrease in the desorbed fraction), during adsorption, it is between −1.1 and −1.05 kg/kg s (increase in the adsorbed fraction). The desorption temperatures reached are 56.8 °C for silica–gel and 51.25 °C for zeolite–water.

14. Investigation of Hybrid Fault Ride Through Control Strategies in Grid-Connected Wind Energy Conversion Systems

    J. Preetha Roselyn, C. R. Raghavendran, D. Devaraj

    Abstract

    The significant issues which are associated with grid code during grid fault are the fault ride through (FRT) capability of wind farms. This paper presents a detailed investigation of different hybrid fault ride through schemes in DFIG-based wind system under both symmetrical and unsymmetrical fault conditions. This work analyzed the performance of hybrid FRT combinations like crowbar resistance with RL circuit, DC chopper associated with crowbar resistance, DC chopper connected with series dynamic resistor, voltage control scheme with crowbar resistance are developed and studied under symmetrical and unsymmetrical fault conditions. The simulation results are obtained using MATLAB Simulink version 2019b, and the hardware real-time simulation is implemented in OPAL-RT real-time simulator. The proposed hybrid FRT schemes provide promising results improving the system parameters under different fault scenarios in grid-connected wind system.

15. Performance Analysis of Single-Axis Solar Tracker Using IoT Technique

    S. Usha, A. Geetha, T. M. Thamizh Thentral, C. Subramani, R. Ramya, C. S. Boopathi

    Abstract

    To empower the abstraction of maximum power from the solar panel using MPPT with P&O algorithm, this proposed work enlightens the practice of single-axis solar tracker exploitation by Arduino Uno. The introduction of IoT into the project helps in remote monitoring of the entire system and also the analysis with the neat graphical representation of the data over a course of time. The significant characteristic for monitoring, supervising and performances estimations of integration of Internet of Things (IoT) technology which is an efficient wireless communication technology is considered which disables the difficulties faced in physical monitoring of solar photovoltaic (PV) and getting the values of voltage and current.

16. Wireless Power Transfer for Electric Vehicles with Better Ground Clearance

    A. Geetha, S. Usha, T. M. Thamizh Thentral, C. Subramani, J. Santha Kumar, C. S. Boopathi

    Abstract

    In modern era, in electric vehicles charger regularization, the following phase to make the charging procedure more convenient is to eradicate the usage of wired cable sandwiched by linking the electric vehicles and charger to accomplish wireless charging of electric vehicles, and a wireless power transfer (WPT) system ought to be depicted with respective ground clearance of electric vehicle. It is an innovation technology which can be applied for all electric vehicles (EVs) as it helps to get rid of user involvement. The crucial impediment for acquiring wireless charging is ground clearance which downgrades the power transfer efficiency. The theory of WPT for different ground clearance is elucidated, and the corresponding cordless charger device is analysed. The portrayed cordless charger device has capacity to distribute the power of about 45v utmost ground clearance of 20 cm. The battery designed is 4.5KWh and the super capacitor (SC) of 3.8KWh which is sufficient to charge electric vehicle.

17. Five-Level PUC Inverter-Based Shunt Active Power Filter for Harmonic Elimination

    T. M. Thamizh Thentral, K. Vijayakumar, S. Usha, A. Geetha, C. S. Boopathi

    Abstract

    The five-level packed U-cell (PUC) inverter topology is designed as an active power filter to reduce the harmonics present in the nonlinear system. The packed U-cell is a newly emerged multilevel inverter that can generate different levels by utilizing capacitors at the output side. It is called packed U-cell since it has a capacitor and a couple of power switches arranged in U shape. The energy conversion takes place using a limited number of power semiconductor devices and capacitors, thus reducing the cost of production. The model of a five-level PUC inverter is designed, and the simulated waveforms along with their THD are discussed.

18. Performance of 100-kW Rooftop PV Plant in Library Building—A Case Study in SRMIST

    J. Divya Navamani, Tanmay Padhi, Aditi Kumari, A. Lavanya

    Abstract

    In this paper, performance analysis of 100-kW rooftop PV plant in library building of SRM Institute of Science and Technology, Kattankulathur, Chennai, is carried out. The site description and the plant capacity are mentioned as the details obtained by the department, and calculation was performed on the same data. The performance of the system over last three academic years has been compared. Furthermore, the analysis is extended by comparing this 100-kW PV plant with the similar PV plant in the institute. The configuration of the PV plant taken for the comparison is the same 100-kW with similar structure. The findings from the study and comparison are added finally with the causes of the shortfall in the performance of the system. Finally, the inferences are concluded which will guide the researchers to find the solutions for the cause and effect observed in this 100-kW PV plant.