International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 04 | Apr -2017
p-ISSN: 2395-0072
www.irjet.net
FLC Based Reconfigurable Solar Converter for Induction Motor Drive Hydraulic Pump M. Prabhu Raj#1, K.M.Manu#2, S.Dinesh#3, D.Gnanaprakasam#4 #1,2,3,4Assistant
Professor & Department of Electrical &Electronics Engineering Dr.Mahalingam College of Engineering and Technology, Pollachi, Tamilnadu, India
1prabhu.yem@gmail.com,2manu.km.may21@gmail.com,3sridinesh@gmail.com,4gprakasamm@gmail.com
--------------------------------------------------------------------------------------------------------------------------------------------Abstract: This paper proposes Reconfigurable Solar
There are different options for integrating energy storage into a utility-scale solar PV system. Specifically, energy storage can be integrated into the either ac or dc side of the solar PV power conversion systems which may consist of multiple conversion stages [5]–[34]. This paper uses a novel single-stage solar converter called Reconfigurable Solar Converter (RSC). Fig. 1. shows the overall block of the proposed system. The basic concept of the RSC is to use a single power conversion system to perform different operation modes such as PV to Induction Motor drive (dc to ac), PV to battery (dc to dc), battery to Induction Motor drive (dc to ac), and battery and PV to Induction Motor drive (dc to ac) for solar PV systems with energy storage. Section II introduces the proposed RSC circuit and different modes of operation. In Section III, control of the RSC is introduced and necessary design considerations to the conventional three-phase PV converter. Section IV verifies the RSC with simulation using MATLAB / Simulink that demonstrate the attractive performance characteristics. Section V summarizes and concludes the paper.
Converter (RSC) for effective utilization of PV energy. The demand in conventional electricity necessitates the PV power. The incremental conductance based Maximum Power Point Tracking (MPPT) is proposed to obtain maximum power from PV system during varying irradiance and temperature & atmosphere conditions. The main concept of the Reconfigurable Solar Converter is to use a single-stage three phase solar PV converter to perform dc/ac and dc/dc operations. The different operation modes such as PV to Induction Motor drive (dc to ac), PV to battery (dc to dc), battery to Induction Motor drive (dc to ac) and battery & PV to Induction Motor drive (dc to ac) for solar PV systems with energy storage. This converter solution is appealing for PVbattery application, because it minimizes the number of conversion stages, thereby improving efficiency and reducing cost, weight and volume. The Fuzzy Logic Controller (FLC) is applied in this paper for dc/dc operation. In early research the reconfigurable solar converter is used for grid connected system. In this paper it is proposed for grid connected as well as stand-alone system. The hydro pump driven by induction motor for agriculture is proposed as an application in this system. The proposed system is modeled and simulated using MATLAB / Simulink software program. Keywords — Reconfigurable Solar Converter (RSC), photovoltaic (PV), Maximum Power Point Tracking (MPPT), energy storage, Induction Motor Drive Hydraulic Pump. I. INTRODUCTION Solar photovoltaic (PV) electricity generation is not available and sometimes less available depending on the time of the day and the weather conditions. Solar PV electricity output is also highly sensitive to shading. When even a small portion of a cell, module, or array is shaded, while the remainder is in sunlight, the output falls dramatically. Therefore, solar PV electricity output significantly varies. From an energy source standpoint, a stable energy source and an energy source that can be dispatched at the request are desired. As a result, energy storage such as batteries and fuel cells for solar PV systems has drawn significant attention and the demand of energy storage for solar PV systems has been dramatically increased, since, with energy storage, a solar PV system becomes a stable energy source and it can be dispatched at the request, which results in improving the performance and the value of solar PV systems [1]–[4].
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Fig. 1. Overall block of the proposed system
II. RECONFIGURABLE SOLAR CONVERTER (RSC)
A. Introduction
The schematic of the proposed RSC is presented in Fig. 2. The RSC has some modifications to the conventional threephase PV inverter system. These modifications allow the RSC to include the charging function in the conventional three phase PV inverter system. Assuming that the conventional utility-scale PV inverter system consists of a three-phase voltage source converter and its associated components, the RSC requires additional cables and mechanical switches, as shown in Fig. 2. Optional inductors are included if the ac filter inductance is not enough for the charging purpose.
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