A Low-Cost Secure IoT Mechanism for Monitoring and Controlling Polygeneration Microgrids

The use of Internet-connected devices at homes has increased to monitor energy consumption. Furthermore, renewable energy sources have also increased, reducing electricity bills. However, the high cost of the equipment limits the use of these technologies. This paper presents a low-cost secured-distributed Internet of Things (IoT) system to monitor and control devices connected in a polygeneration microgrid, as a combined power system for local loads with renewable sources. The proposed mechanism includes a Wireless Sensor Actuator Networked Control System that links network nodes using the IEEE 802.15.4 standard. The Internet communication enables the monitor and control of devices using a mobile application to increase the efficiency. In addition, security mechanisms are implemented at several levels including the authentication, encryption, and decryption of the transmitted data. Furthermore, a firewall and a network intrusion detection-and-prevention program are implemented to increase the system protection against cyber-attack. The feasibility of the proposed solution was demonstrated using a DC microgrid test bench consisting of a diverse range of renewable energy sources and loads.

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Implementation of a Web of Things based Smart Grid to remotely monitor and control Renewable Energy Sources

2014 IEEE Students' Conference on Electrical, Electronics and Computer Science ◽

10.1109/sceecs.2014.6804466 ◽

2014 ◽

Cited By ~ 11

Author(s):

Saswat Mohanty ◽

Bikash Narayan Panda ◽

Bhawani Shankar Pattnaik

Keyword(s):

Renewable Energy ◽

Smart Grid ◽

Renewable Energy Sources ◽

Energy Sources ◽

Web Of Things ◽

And Control ◽

Monitor And Control

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Operation and control of a stand-alone power system with integrated multiple renewable energy sources

Wind Engineering ◽

10.1177/0309524x211024126 ◽

2021 ◽

pp. 0309524X2110241

Author(s):

Nindra Sekhar ◽

Natarajan Kumaresan

Keyword(s):

Renewable Energy ◽

Reactive Power ◽

Renewable Energy Sources ◽

Energy Sources ◽

Solar Pv ◽

Power Requirement ◽

Squirrel Cage ◽

Hysteresis Controller ◽

Squirrel Cage Induction Generator ◽

And Control

To overcome the difficulties of extending the main power grid to isolated locations, this paper proposes the local installation of a combination of three renewable energy sources, namely, a wind driven DFIG, a solar PV unit, a biogas driven squirrel-cage induction generator (SCIG), and an energy storage battery system. In this configuration one bi-directional SPWM inverter at the rotor side of the DFIG controls the voltage and frequency, to maintain them constant on its stator side, which feeds the load. The PV-battery also supplies the load, through another inverter and a hysteresis controller. Appropriately adding a capacitor bank and a DSTATCOM has also been considered, to share the reactive power requirement of the system. Performance of various modes of operation of this coordinated scheme has been studied through simulation. All the results and relevant waveforms are presented and discussed to validate the successful working of the proposed system.

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Pretreatments of lignocellulosic feedstock for bioethanol production

Hemijska industrija ◽

10.2298/hemind100217016p ◽

2010 ◽

Vol 64 (4) ◽

pp. 283-293 ◽

Cited By ~ 2

Author(s):

Zlatica Predojevic

Keyword(s):

Renewable Energy ◽

Co2 Emission ◽

Fossil Fuels ◽

Low Cost ◽

Renewable Energy Sources ◽

Energy Sources ◽

Bioethanol Production ◽

Environment Protection ◽

Lignocellulosic Feedstock ◽

Lignocellulosic Feedstocks

The use of renewable energy sources (biofuels), either as a component in the conventional fossil fuels, gasoline and diesel, or as a pure biofuel, contributes to energy saving and decrease of total CO2 emission. The use of bioethanol mixed with gasoline significantly decreases gasoline consumption and contributes to environment protection. One of the problems in the production of bioethanol is the availability of sugar and starch based feedstock used for its production. However, lignocellulosic feedstocks are becoming more significant in the production of bioethanol due to their availability and low cost. The aim of this study is to point out the advantages and shortcomings of pretreatment processes and hydrolyses of lignocellulosic feedstocks that precede their fermentation to bioethanol.

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Development of a Micro grid with Renewable Energy Sources with Feedback Controller

International Journal of Innovative Technology and Exploring Engineering - Special Issue ◽

10.35940/ijitee.k2183.0981119 ◽

2019 ◽

Vol 8 (11) ◽

pp. 2014-2018

Keyword(s):

Renewable Energy ◽

Electricity Generation ◽

Low Cost ◽

Renewable Energy Sources ◽

Electrical Power ◽

Energy Sources ◽

Military Operations ◽

Urban Centers ◽

Industrial Projects ◽

Micro Grid

To make micro grid with renewable energy and to over come the technical challenges and economy base and policy and regulatory challenges . From the natural wastage we can generate the Electricity. Thus, the Electrical Power or Electricity is available with a low cost and pollution free to anyplace in the world at all times. This process divulge a unequaled step in electricity generation and this type of generation is maintain the ecological balance. We can have an uninterrupted power supply irrespective of the natural condition without any kind of environmental pollution. More influence this process relent the less production cost for electricity generation. Micro grids have long been used in remote areas to power off-grid villages, military operations or industrial projects. But increasingly they are being used in cities or towns, in urban centers. Here we try a proto type of micro grid with renewable energy sources.

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Experimental Studies on an Inclined Collector Divergent Chimney Pilot Plant

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/850/1/012008 ◽

2021 ◽

Vol 850 (1) ◽

pp. 012008

Author(s):

N Rajamurugu

Keyword(s):

Renewable Energy ◽

Fossil Fuels ◽

Low Cost ◽

Renewable Energy Sources ◽

Experimental Studies ◽

High Mass ◽

Energy Sources ◽

Solar Pv ◽

Solar Chimney ◽

Energy Agency

Abstract Renewable energy sources become suitable valid options to reduce the dependency on fossil fuels or petroleum products. The International Renewable Energy Agency reports that the world will harvest 40% of energy from renewable energy sources by 2030. Conventional technologies such as solar PV technology, consumes higher capital per unit (kWh) of electricity generation cost significantly higher than the traditional sources. Hence, solar chimney power generation system can be suitable option for generating low cost energy. Solar chimneys are developed and tested by different researchers in enhancing the performance of the system. Studies on the geometric modifications of the collector, and chimney are limited. The aim of this paper is to analyse the experimental data obtained from a divergent solar chimney. Experimentation is carried under sunlight in an open atmosphere. The airflow rates in the chimneys are tested under different collector outlet height. The experimental results showed that a chimney with higher collector openings was performed well than other models. The computational analysis is also carried out using ANSYS Fluent software package which shows that the collector opening of 2.5m is recommended for higher high mass flow rate and system efficiency.

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