Inverterless Solar- DC system design for off- grid and near off-grid Indian homes
01 Dec 2016-pp 1-5
TL;DR: In this article, an innovative approach to tackle the crisis of electrification of off grid and near off grid homes by using the innovative Inverterless Solar DC system improved efficiency, lower cost and robust design makes it a very attractive solution.
Abstract: This paper presents an innovative approach to tackle the crisis of electrification of off grid and near off grid homes by using the innovative Inverterless Solar DC system Improved efficiency, lower cost and robust design makes it a very attractive solution Inverterless system is not only cost effective to power off grid homes but as and when grid becomes available, it can be seamlessly integrated For homes which are connected to the grid but face load shedding, this system provides uninterrupted power This paper presents the technical design details of this system
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01 Oct 2019
TL;DR: The primary goal of the project is to design an energy efficient household by optimizing energy demand, managing local generation and storage, which can ensure the availability of energy for all consumers irrespective of their financial status.
Abstract: Energy is an essential resource for mankind. AC was the source of power distribution for the past two centuries, due to the ease of distributing it over a long distance employing transformers for stepping up and stepping down. Majority of the electronic home appliances uses DC source, which is obtained by converting the AC power from the grid. DC Power distribution is considered a better option for these electric loads than the DC obtained after conversion [4]. DC distribution also benefits employment of renewable energy generators such as photovoltaic (PV) Cells as it reduces the number of energy conversion stages. The feasibility of the proposed DC system is investigated by comparing it with the existing 230 V AC home systems. The primary goal of the project is to design an energy efficient household by optimizing energy demand, managing local generation and storage. This design can ensure the availability of energy for all consumers irrespective of their financial status.
2 citations
Cites background from "Inverterless Solar- DC system desig..."
...Also the minimal utilization of hydro and thermal power plants will be possible only by integrating renewable sources to conventional energy sources[3]....
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01 Oct 2020
TL;DR: In this article, the authors proposed to use a large share of generation based on renewable energy sources (RES) for such systems, taking into account a nonstationary character of power generation, presence of electricity storage devices, as well as stricter requirements of consumers to power quality and reliability of power supply.
Abstract: The power system of Russian Federation is diversified regionally and consists of one Unified Power System and multiple off-grid power systems. Many parts of Russia are not connected to centralized power supply by virtue of their geographical position. There are more than five thousand autonomous energy sources in the off-grid territories, which are mainly represented by diesel power plants and gas turbines. These power plants use very expensive fossil fuel. It is proposed to use a large share of generation based on renewable energy sources (RES) for such systems. Taking into account a nonstationary character of power generation, presence of electricity storage devices, as well as stricter requirements of consumers to power quality and reliability of power supply, we can say that operating conditions of such systems and their control represent a difficult problem that needs to be studied. The tasks of substantiating the development of isolated power supply systems are considered. The analysis of the essence and level of study of task groups to substantiate the development of such systems in a hierarchical sequence is given. The problem of substantiating development is presented in the form of three successive stages: substantiating a rational configuration of the power supply system, comprehensive optimization of the structure and parameters of the power supply system taking into account various requirements and studying the operating conditions. In the paper, the specific features of microgrid operation in different seasons of a year and different time of a day are analyzed, a set of problems related to control of operation is formulated and specific features of their solution are discussed.
1 citations
17 May 2023
TL;DR: In this paper , the authors describe the design and installation of a solar-powered direct current (DC) power source for isolated dwellings, which can be customized to meet the exact energy needs of the house by adding additional solar panels or batteries.
Abstract: Despite its importance. more than 800 million people still lack access to electricity. Individuals in many rural areas lack access to a consistent supply of energy due to the high cost of grid extension. Off-grid solar systems enable rural residents to connect to the energy 2rid and power their homes’ lights. appliances. and other electronic equipment. This document provides a brief overview of a solar power system that can be used to Dower remote homes. Solar panels. a charge controller. batteries. and an inverter make up the system. Sunlight is converted into direct current by solar panels. which is then stored in batteries. The charge controller regulates the charging and discharging cycles of the battery pack in order to keep the cells healthy and long-lasting. The inverter converts the stored DC electricity into the alternating current (AC) power that appliances and other AC loads require. The proposed method is intended to be simple and low-cost. making it an appropriate option for regions with limited resources and low growth. The system can be customized to meet the exact energy needs of the house by adding additional solar panels or batteries. Furthermore. the structure is made up of discrete components. making it easier to assemble and maintain. Off-grid solar power systems are a cost-effective and efficient wav of bringing electricity to areas that are not connected to the power grid. The proposed system describes the design and installation of a solar-powered. direct current (DC) power source for isolated dwellings. The strategy promotes long-term economic growth and raises the living standards of rural families.
17 May 2023
TL;DR: In this paper , the authors describe the design and installation of a solar-powered direct current (DC) power source for isolated dwellings, which can be customized to meet the exact energy needs of the house by adding additional solar panels or batteries.
Abstract: Despite its importance. more than 800 million people still lack access to electricity. Individuals in many rural areas lack access to a consistent supply of energy due to the high cost of grid extension. Off-grid solar systems enable rural residents to connect to the energy 2rid and power their homes’ lights. appliances. and other electronic equipment. This document provides a brief overview of a solar power system that can be used to Dower remote homes. Solar panels. a charge controller. batteries. and an inverter make up the system. Sunlight is converted into direct current by solar panels. which is then stored in batteries. The charge controller regulates the charging and discharging cycles of the battery pack in order to keep the cells healthy and long-lasting. The inverter converts the stored DC electricity into the alternating current (AC) power that appliances and other AC loads require. The proposed method is intended to be simple and low-cost. making it an appropriate option for regions with limited resources and low growth. The system can be customized to meet the exact energy needs of the house by adding additional solar panels or batteries. Furthermore. the structure is made up of discrete components. making it easier to assemble and maintain. Off-grid solar power systems are a cost-effective and efficient wav of bringing electricity to areas that are not connected to the power grid. The proposed system describes the design and installation of a solar-powered. direct current (DC) power source for isolated dwellings. The strategy promotes long-term economic growth and raises the living standards of rural families.
TL;DR: In this article , a new feature that incorporates both analog PWM solar charging techniques and a DC to DC (12V to 120V) converter was introduced to satisfy the needs of existing off-grid solar home system users.
Abstract: 41 Abstract— Solar Home System (SHS) is a stand-alone power solution in isolated places where there is no connectivity to the national power grid. Currently, an off-grid SHS has a solar panel, a lead-acid battery, a Pulse Width Modulation (PWM) solar charge controller, and 12V DC power operated electrical home appliances; in some cases, a DC to DC converter or a DC to AC inverter has been connected. So far, various SHS packages have been introduced, each with a set of product features and prices. Since the majority of SHS are small in size, producing energy is inadequate to satisfy the customer's demand. This study introduces a new feature that incorporates both analog PWM solar charging techniques and a DC to DC (12V to 120V) converter to satisfy the needs of existing off-grid SHS users. The design of solar charging includes improved charging techniques i.e surge voltage and lightning protection. The result produced is a noisefree switching gate drive signal and high-performance fixedfrequency current mode controllers. The new controller's design also reduces the number of devices in the SHS; thus reduces the controller's total production cost.
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07 Jun 2015
TL;DR: In this article, an efficient and affordable solar DC solution for powering off-grid homes is presented. But, the proposed solution is not suitable for the use of the generated PV power efficiently.
Abstract: India is a power deficit country and one third of its homes are off grid or near off grid. This paper presents an efficient and affordable Solar DC solution for powering such homes. Though several solutions have emerged in the past for powering these homes, those have been expensive and energy inefficient. These solutions rely on several DC to AC and AC to DC conversions, to feed the widely used AC home loads, thus, wasting a large chunk of the expensive power. The proposed Solar DC solution for off-grid homes (OGH) is developed to use the generated PV power efficiently. With this solution, the panel and battery size is reduced by 2 to 2.5 times and the cost to power a house is reduced to nearly half the cost of the existing solutions. The paper also presents a techno-economic comparison between the proposed OGH solution with some existing solar systems.
43 citations