International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 12 | Dec 2024
p-ISSN: 2395-0072
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DESIGN AND IMPLEMENTATION OF PV BASED LUO- CONVERTER FED BLDC MOTOR YUVARAJ R1, Dr. ADINATH JAIN2, Dr. C SUNANDA3 1Student, EEE Dept., RV College of Engineering, Bengaluru, India
2 Assistant Professor, EEE Dept., RV College of Engineering, Bengaluru, India 3 Assistant Professor, EEE Dept., RV College of Engineering, Bengaluru, India
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Abstract - This paper work is aimed at design and
analysis of PV based Luo Converter Fed BLDC Motor. The super-lift Luo converter uses a voltage lift technique to improve performance. Unlike traditional converters that increase voltage in an arithmetic progression, the superlift converter does so geometrically, enhancing power transfer gain. This design effectively boosts voltage for lower input levels, making it suitable for driving BLDC motors. Compared to classical buck converters, which generate significant output voltage ripples and parasitic effects, the Luo converter integrates additional filter elements, such as inductors and capacitors, tosmooth out the output and reduce ripples. By varying the duty cycle, the Luo converter can function as both a buck and boost converter, making it a versatile choice for BLDC motor drives. Key Words: Luo-converter, BLDC motor, Pulse Width Modulation, Variable Load, DC-DC Converter, DC-AC Converter, H-Bridge Multilevel Inverter, Photo Voltaic, Matlab, Simulink
1. INTRODUCTION In recent days the use of renewable energy is widely increasing day by day. Among them, Solar Energy is considered as one of the important energy sources since these are environmental friendly and produces electric power without causing pollution. Therefore, Solar Photo Voltaic (PV) panels are preferred that are readily available. In comparison to other renewable resources, the PV system is quiet, stationary, devoid of mechanical parts, and has minimal production and operating expenses. There is a growing tendency in the global sector and in the operation of different industrial facilities for the use of photovoltaic as a source of electrical energy. Numerous variables, including the decline in the cost of producing photovoltaic power per kW, the increase in the price of fossil fuels, and the advancement of efficient photovoltaic energy conversion technologies, are driving this trend [1]-[4]. The photovoltaic cells generate electrical energy using the sunlight. A PV panel is formed of PV cells connected in series, parallel or series-parallel that is working commonly with a DC-DC converter and stores electrical energy in a battery array. DC-DC converters are electronic devices that are used
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to change DC electrical power efficiently from one voltage level to another. The control of voltage is done by controlling the duty ratio of the switch [5]. Switches used are MOSFET’s, transistors, GTO’s, IGBT’s depending upon the circuit or the power transfer capability. The control of output voltage to a constant magnitude is achieved by the help of a feedback. The use of one or more switches for the purpose of power conversion can be regarded as a SMPS [6]-[10]. In recent trends, in various industries, DC-DC conversion plays a significant role for various applications and there are various types of DC-DC conversion techniques to improve the voltage gain as well as efficiency. In DC-DC conversion step-up chopper boosts the output voltage whereas step down chopper bucks the output voltage [11]-[14]. Due to a lot of research in DC-DC conversion more topologies developed, generally, these topologies are categorized into with and without transformer. The transformer-less DC-DC conversion has led to a reduction in the size, weight, costand losses. There are many voltage building techniques adopted in conversion stages, namely, voltage lift technique and super- lift technique in the case of Luo DC – DC converters [15]-[18]. Luo converters developed from the fundamental DC – DC converter has a simple and cheap topology as well provide high voltage gain, better efficiency and lowest ripple at the output. In the voltage lift technique, the output voltage is increased step by step in arithmetic progression. However, in the super-lift technique, the output voltage increases geometrically. Two types of super- lift techniques are Positive Output Super-lift Luo Converter (POSLC) and Negative Output Super- lift Luo Converter (NOSLC) [19][20]. Luo converters are DC-DC Switching Mode Boost converters. A boost converter (step-up converter) is power converter with an output dc voltage greater than its inputdc voltage. Luo converters are a class of converters providing a high gain with relatively lesser number of components. Although Luo converters provide a high gain, when cascaded, the gain increases stage by stage only in Arithmetic Progression i.e. these converters uses the voltage lift (VL) technique [21]. In order to solve this discrepancy in the Classical Luo Converters, another class of converters called Super-lift Luo Converters was developed. While the positive aspects of the Classical Luo Converters are retained in Super-lift
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