scholarly journals ENIGMA—A Centralised Supervisory Controller for Enhanced Onboard Electrical Energy Management with Model in the Loop Demonstration

Energies ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 5518
Author(s):  
Sharmila Sumsurooah ◽  
Yun He ◽  
Marcello Torchio ◽  
Konstantinos Kouramas ◽  
Beniamino Guida ◽  
...  
Keyword(s):  
Energy Management ◽  
Distribution System ◽  
Electrical Power ◽  
Substantial Reduction ◽  
Electrical Energy ◽  
Regeneration System ◽  
Supervisory Controller ◽  
Safety And Reliability ◽  
Failure Conditions ◽  
Power And Energy

A centralised smart supervisor (CSS) controller with enhanced electrical energy management (E2-EM) capability has been developed for an Iron Bird Electrical Power Generation and Distribution System (EPGDS) within the Clean Sky 2 ENhanced electrical energy MAnagement (ENIGMA) project. The E2-EM strategy considers the potential for eliminating the 5 min overload capability of the generators to achieve a substantial reduction in the mass of the EPGDS. It ensures optimal power and energy sharing within the EPGDS by interfacing the CSS with the smart grid network (SGN), the energy storage and regeneration system (ESRS), and the programmable load bank 1 secondary distribution board (PLB1 SDU) during power overloads and failure conditions. The CSS has been developed by formalizing E2-EM logic as an algorithm operating in real time and by following safety and reliability rules. The CSS undergoes initial verification using model-in-the-loop (MIL) testing. This paper describes the EPGDS simulated for the MIL testing and details the E2-EM strategy, the algorithms, and logic developed for the ENIGMA CSS design. The CSS was subjected to two test cases using MIL demonstration, and based on the test results, the performance of the ENIGMA CSS is verified and validated.

scholarly journals Performance Analysis of Plug-in Electric Vehicle Supported DVR for Power-Quality Improvement and Energy Back-Up Strategy

2020 ◽  
Vol 8 (6) ◽  
pp. 945-952
Keyword(s):  
Electric Vehicle ◽  
Power Quality ◽  
Distribution System ◽  
Power Flow ◽  
Fossil Fuels ◽  
Electrical Power ◽  
Peak Load ◽  
Electrical Energy ◽  
Distribution Grid ◽  
Dynamic Voltage Restorer

Electric vehicle technology becomes increasingly important as it takes care of the environmental issues related to ICE vehicle and reduces the dependency on fossil fuels. Electric vehicle being greatly dependent on the limited electrical energy provided by a battery, the power flow efficiency is very important in this context. Electric vehicle integration to the distribution grid is increased at a faster rate because it can act as power backup to the grid/local loads reducing the peak load and filling the valley point. Most of software engineers own an Electric Vehicle based on eco-friendly principles. The Batteries in the car are connected to the charging point (or) grid monitoring of State of Charging (SOC) facilities in the parking area of company. When the Renewable power (solar energy) is available, the batteries will be charged to hundred percentage of SOC. Then excess power from PV will connect to load as well as grid. When the electrical power supply cutoff the car batteries will act as a battery bank of UPS and support to the critical load with condition based Allowable SOC. The total capacity of the batteries depends upon the no of cars available at a particular shift in a day. This work proposes the power backup of EV is utilized as an UPS to Software Company as well as used to support the Dynamic Voltage Restorer (DVR) to mitigate the fault occurring in the distribution system. Additionally, the EV supported DVR compensates voltage harmonics, voltage sag-swell, voltage interruptions coming from distribution to enhance power-quality of entire EV system without any additional compensation devices. The entire system is modeled using MATLAB/SIMULINK and the results confer the feasibility of the proposed objective.

scholarly journals Establishing a metrological infrastructure and traceability of electrical power and energy in the R. Macedonia

ACTA IMEKO ◽  
2014 ◽  
Vol 2 (2) ◽  
pp. 86 ◽  
Author(s):  
Ljupco Arsov ◽  
Marija Cundeva-Blajer
Keyword(s):  
Fair Trade ◽  
Electrical Power ◽  
Electrical Energy ◽  
International Standards ◽  
Current State ◽  
Metrological Infrastructure ◽  
Calibration And Verification ◽  
Power And Energy ◽  
Metrology Infrastructure ◽  
International Comparability

In the paper the current state and the establishment of metrology infrastructure and traceability of the measurements of electrical power and energy, i.e. the creation of conditions for unity of power and energy measurements, international comparability of the results and measurements which insure fair trade and consumers' protection are elaborated. Beside the legal, also other aspects are discussed, like the needs for calibration and verification in the field of electrical power and energy, participants in the chain of measurements and trade with electrical energy, the organization, the infrastructure, the methods and the systems of calibration and verification. An organization and certain documents which will contribute to the establishment of a system in accordance with the international standards and practice, as well as traceability and fair trade, are proposed.

scholarly journals Energy Management System in the Vehicles using Three Level Neuro Fuzzy Logic

2021 ◽  
Vol 3 (3) ◽  
pp. 149-162
Author(s):  
G Ranganathan ◽  
Jennifer S Raj
Keyword(s):  
Fuzzy Logic ◽  
Energy Consumption ◽  
Energy Management ◽  
Hybrid Electric Vehicle ◽  
Control Strategies ◽  
Electrical Energy ◽  
Energy Management Strategy ◽  
Total Energy Consumption ◽  
Supervisory Controller ◽  
Neuro Fuzzy

This paper has proposed a hybrid electric vehicle that uses intelligent energy management strategy to decrease the energy consumption of the vehicle. Here, the total energy consumption of the vehicle is initially modelled and further investigated to reduce the amount of energy used to be identified as a sum of electrical energy provided by consumed fuels and on-board batteries. In particular, an intelligent controller is proposed in this work to execute its ability to decrease the total amount of energy consumed and improve the energy efficiency of the vehicle. A fuzzy system is utilized in an account supervisory controller to decide the appropriate mode of operation for the system. The part of the proposed work involves development of optimal control strategies by using neuro-fuzzy logic. In order to obtain optimal performance, the controllers are used to regulate vehicle subsystems and set points. The biggest advantage of this work is the reduction in energy consumption and their ability to execute the operation online. Simulink/MATLAB is used to simulate and validate the performance of the proposed work under various conditions and under several dataset values.

scholarly journals Intelligent Energy Management of Electrical Power Systems

2020 ◽  
Vol 10 (8) ◽  
pp. 2951 ◽  
Author(s):  
Manuela Sechilariu
Keyword(s):  
Smart Grid ◽  
Power Systems ◽  
Real Time ◽  
Energy Management ◽  
Distribution System ◽  
Power Flow ◽  
Low Voltage ◽  
Electrical Power ◽  
Building Blocks ◽  
Energy System

Smart grid implementation is facilitated by multi-source energy systems development, i.e., microgrids, which are considered the key smart grid building blocks. Whether they are alternative current (AC) or direct current (DC), high voltage or low voltage, high power or small power, integrated into the distribution system or the transmission network, multi-source systems always require an intelligent energy management that is integrated into the power system. A comprehensive intelligent energy system aims at providing overall energy efficiency with regard to the following: increased power generation flexibility, increased renewable generation systems, improved energy consumption, reduced CO2 emission, improved stability, and minimized energy cost. This Special Issue presents recent key theoretical and practical developments that concern the models, technologies, and flexible solutions to facilitate the following optimal energy and power flow strategies: the techno-economic model for optimal sources dispatching (mono and multi-objective energy optimization), real-time optimal scheduling, and real time optimization with model predictive control.

scholarly journals Study of Energy Management and Audit

2020 ◽  
pp. 146-152
Author(s):  
G. Joga Rao ◽  
K. Pavan Srihari
Keyword(s):  
Energy Management ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Electrical Energy ◽  
Management Program ◽  
Energy Audit ◽  
Energy Auditing ◽  
Current Scenario ◽  
Residential House ◽  
The Government

The economic development of a country is often closely linked to its consumption of energy. The government has taken new steps for the development of renewable energy sources and less consideration in conservation of electrical energy in the society. According to the current scenario the demand of energy has increased and became a routine process in our lifestyle. Why electrical auditing and management is essential? Energy audit is the survey of wastage power in different areas like domestic houses, commercial buildings and industries etc. For getting solution to save electrical energy, energy auditing is best way. So we found in India the demand of electrical power rises at the rate of 9-10 % per annum while the generation of electrical power rises at the rate of 5-6 % per annum, ultimately the gap between demand and generation of electrical power is widening at the rate of 3-4 % per annum. Electrical energy auditing and management program can have an originating within one division of saving, motivating people in all forms to undergo conservation activities. In this project we had done the Energy audit in residential house.

scholarly journals Analysis of SCADA Application on Distribution System Reliability

2020 ◽  
Vol 3 (2) ◽  
pp. 46-52
Author(s):  
Noveri Lysbetti Marpaung ◽  
Edy Ervianto ◽  
Rahyul Amri ◽  
Hayatul Illahi
Keyword(s):  
System Reliability ◽  
Power Distribution ◽  
Distribution System ◽  
High Reliability ◽  
Electrical Power ◽  
Electrical Energy ◽  
Power Distribution System ◽  
Reliability Level ◽  
Before And After ◽  
Distribution System Reliability

Reliability of Electrical Power Distribution to consumer is strongly influenced by its distribution system. Therefore, electrical power distribution system with high reliability is needed. In distribution of electrical power, reliability level of distribution system is very necessary, because it is influential strongly factor towards continuity of electrical energy distribution to consumers. Parameters can be used to determine reliability level of Electrical Power Distribution System are SAIDI, SAIFI, and CAIDI. SCADA on Electrical Power Ditribution System is needed because it can monitor, control, configure and record working system real time. Besides it, SCADA also can handle interruption temporary or permanently in short time by using remote. Aim of this research is to compare distribution system reliability indexes such as SAIFI, SAIDI and CAIDI before and after integrated with SCADA in Bukittinggi Rayon of PT PLN (Persero), Western Sumatera, Indonesia. This research uses Distribution System Data from 2015 and 2016. Result of this  rresearch is Realibility Indexes before Integrated with SCADA(2015) are 15.40 hours/customer, 46.36 interruption/year, 0.33 hour/year, while after Integrated with SCADA(2016) are 2.14 hours/customer, 22.41 interruption/year, 0.10 hour/year. for SAIDI, SAIFI CAIDI Indexes respectivel y. It can be concluded that The increase of Reliability Index after integrated with SCADA are 86.1% for SAIDI, 51.66% for SAIFI, 69.7% for CAIDI.

Experimental Hydrogen Plant with Metal Hydrides to Store and Generate Electrical Power

2016 ◽  
Vol 17 (1) ◽  
pp. 59-67 ◽  
Author(s):  
Frank Gonzatti ◽  
Vinícius Nizolli ◽  
Fredi Zancan Ferrigolo ◽  
Felix Alberto Farret ◽  
Marcos Augusto Silva de Mello
Keyword(s):  
Distribution System ◽  
Electrical Power ◽  
Metal Hydrides ◽  
Electrical Energy ◽  
Primary Energy ◽  
Plant Component ◽  
Energy Characteristics ◽  
Consumption Data ◽  
Power Inverters ◽  
Hydrogen Plant

Abstract Generation of electrical energy with renewable sources is interruptible due to the primary energy characteristics (sun, wind, hydro, etc.). In these cases, it is necessary to use energy storage so increasing penetrability of these sources connected to the distribution system. This paper discusses in details some equipment and accessories of an integrated power plant using fuel cell stack, electrolyzer and metal hydrides. During the plant operation were collected the power consumption data and established the efficiency of each plant component. These data demonstrated an overall efficiency of about 11% due to the low efficiencies of the commercial electrolyzers and power inverters used in the experiments.

Using Core Sunlighting to Improve Illumination Quality and Increase Energy Efficiency of Commercial Buildings

2010 ◽  
Author(s):  
Lorne Whitehead ◽  
Allen Upward ◽  
Peter Friedel ◽  
Guthrie Cox ◽  
Michele Mossman
Keyword(s):  
Electrical Power ◽  
Substantial Reduction ◽  
Electrical Energy ◽  
Commercial Buildings ◽  
High Quality ◽  
Increase Energy Efficiency ◽  
Lighting Industry ◽  
Color Rendering ◽  
Excellent Color

The lighting industry has been challenged to deliver high quality illumination while using less electrical energy and, to achieve this, it is generally agreed that it is a good idea to incorporate daylighting strategies. We have developed a new system that is capable of delivering sunlight deep into the core of multi-floor buildings. This system has the potential to reduce the energy required for illumination in standard commercial buildings by at least 25%, reduce peak electrical power demand when it is needed, and provide high quality illumination with excellent color rendering characteristics. This result is achieved by delivering sunlight to the interior regions of the building, thereby replacing electric lighting on average 75% of the time each day that the sun shines within six core daylight hours. As a result of both its cost-effectiveness and the ease with which it can be integrated into standard building construction, this is the first core sunlighting system with potential for widespread adoption. An initial demonstration shows a substantial reduction in the electrical lighting load and enables an evaluation of the spectral quality of the sunlight illumination from the perspective of the occupants.

scholarly journals Development of a simulation platform of all-electric aircraft on-board systems for energy management studies

2017 ◽  
Vol 121 (1239) ◽  
pp. 710-719 ◽  
Author(s):  
F. Schettini ◽  
E. Denti ◽  
G. Di Rito
Keyword(s):  
Power Systems ◽  
Energy Management ◽  
Electrical Power ◽  
Electrical Energy ◽  
Simulation Platform ◽  
Technology Initiative ◽  
Hydraulic Power ◽  
Simulink Simulation ◽  
Electric Aircraft

ABSTRACTThis paper deals with the development of a simulation platform for the dynamic analysis of systems characterised by different physical domains. The research has been carried out in the context of the EC-funded Clean Sky Joint Technology Initiative (Green Regional Aircraft/All-Electric Aircraft domain). In particular, the objective of the research is focused on the on-board systems of new All-Electric Aircraft, where a crucial design point is related to the electrical energy management. In the “all-electric” concept, where pneumatic and hydraulic power systems are eliminated to improve aviation costs and environmental impact, the dynamics of electrical power absorptions is to be characterised and managed to avoid excessive peaks with respect to generators capabilities. The paper describes the architecture of a Matlab/Simulink simulation platform developed in order to design and validate of the electrical energy management logics, which lead up to 32% reduction of the maximum power request for the case study considered. Thanks to an approach based on a mixing of co-simulation and S-function compiling, the platform integrates models coming from different environments (AMESim, Dymola/Modelica), and developed by various partners/specialists.

scholarly journals Compact Fluorescence Lamp Based on Power Electronics Technology: its Advantages and Disadvantages

2019 ◽  
Vol 4 (1) ◽  
pp. 99
Author(s):  
Nana Heryana ◽  
Handoko Rusiana Iskandar ◽  
Bambang Widodo ◽  
Robinson Purba
Keyword(s):  
Power Electronics ◽  
Electrical Power ◽  
Harmonic Distortion ◽  
Electrical Energy ◽  
Input Current ◽  
Advantages And Disadvantages ◽  
Fluorescent Lamps ◽  
Sinusoidal Waveform ◽  
Harmonic Components ◽  
Power And Energy

Power-electronics based Compact Fluorescent Lamps (CFLs) have been proven to reduce electrical energy consumption for lighting purpose. As in common power-electronics-based electrical devices, CFLs can be categorized as non-linear loads. Therefore, the input current has a non-sinusoidal waveform and contains harmonics. This paper discusses the advantages and disadvantages of CFL application and proposes the attachment of THD value to the product package in order to improve the marketing policy. Total Harmonic Distortion (THD) is a method used to find the percentage value between the total harmonic components and their fundamental components. The percentage of THD causes the greater risk of damage to equipment due to harmonics that occur in current and voltage. Laboratory testing shows that a CFL sample has THD of the input current as high as 67.7%. This THD is relatively high and may degrade the electrical power quality. Moreover, it could lead to the misreading of electrical power and energy meter. Several experiment results are shown and analyzed to confirm the validity of the discussed matter.  

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