Implementation of Microgrid on the University Campus of UNICAMP- Brazil: Case Study

2021 ◽  
Vol 1 (2) ◽  
pp. 21-25
Author(s):  
Rodolfo Quadros ◽  
◽  
João Luiz Jucá ◽  
João Guilherme Ito Cypriano ◽  
Roberto Perillo Barbosa da Silva ◽  
...  
Keyword(s):  
Energy Management ◽  
Smart Grids ◽  
New Technologies ◽  
Demand Management ◽  
Storage System ◽  
Lithium Ion ◽  
Energy Resources ◽  
University Campus ◽  
Data Set ◽  
The University

Based on the development of new technologies in the electrical engineering field, microgrids can be understood as the effective implantation of smart grids. These, in turn, have functionalities for energy management, such as voltage control, frequency, and demand management, and can also operate in a connected or island mode concerning the utilities resources. In the face of such technological advances and energy management, this paper presents a proposal for the implementation of a microgrid, called CampusGRID. This microgrid will be installed on the University Campus of UNICAMP - Brazil, being connected to a 11.9kV level voltage grid with 2370 kVA power rated shared among eleven points of connections and demand varying from 475 to 768 kW. For the control of loads (electric vehicle, classroom buildings, laboratories, libraries, convention center, multidisciplinary gymnasium), it is proposed to automate the circuits in the secondary side of transformers to control the loads, as well as the monitoring of these. For the power generation system, a set of distributed energy resources (DER) was considered, such as photovoltaic sources (PV), sources with cogeneration known for the combination of heat and power (CHP) using natural gas and storage system with lithium-ion batteries. These energy resources will be controlled by a centralized energy management system, with fiber-optic network communication, ensuring signal synchronism to the equipment for the provision of services, as well as serving as a means to collect the data set from the respective equipment for studies and performance improvements of the CampusGRID microgrid. Keywords: Microgrid; DER; EMS; Smart Grid;

scholarly journals Analysis of Different Energy Storage Technologies for Microgrids Energy Management

2020 ◽  
Vol 173 ◽  
pp. 03004
Author(s):  
Darío Benavides ◽  
Paúl Arévalo ◽  
Luis G. Gonzalez ◽  
José A. Aguado
Keyword(s):  
Energy Storage ◽  
Energy Management ◽  
Storage Systems ◽  
Storage System ◽  
Lithium Ion ◽  
Operating Conditions ◽  
Energy Storage Systems ◽  
Efficiency Performance ◽  
Storage Technologies ◽  
Different Levels

The importance of energy storage systems is increasing in microgrids energy management. In this study, an analysis is carried out for different types of energy storage technologies commonly used in the energy storage systems of a microgrid, such as: lead acid batteries, lithium ion batteries, redox vanadium flux batteries and supercapacitors. In this work, it is analyzed the process of charging and discharging (slow and fast) in these systems, the calculation of energy efficiency, performance and energy supplied under different load levels, in its normal operating conditions and installed power capacity is developed. The results allow us to choose the optimal conditions of charge and discharge at different levels of reference power, analyzing the strengths and weaknesses of the characteristics of each storage system within a microgrid.

Geographic Proximity and Science Parks

2018 ◽  
Author(s):  
Albert N. Link ◽  
John T. Scott
Keyword(s):  
New Technologies ◽  
Regional Growth ◽  
Information And Communications Technology ◽  
University Campus ◽  
Science Parks ◽  
Geographic Proximity ◽  
Multiple Sources ◽  
Science Park ◽  
Ongoing Research ◽  
The University

Science parks, also called research parks, technology parks, or technopolis infrastructures, have increased rapidly in number as many countries have adopted the approach of bringing research-based organizations together in a park. A science park’s cluster of research and technology-based organizations is often located on or near a university campus. The juxtaposition of ongoing research of both the university and the park tenants creates a two-way flow of knowledge; knowledge is transferred between the university and firms, and all parties develop knowledge more effectively because of their symbiotic relationship. Theory and evidence support the belief that the geographic proximity provided to the participating organizations by a science park creates a dynamic cluster that accelerates economic growth and international competitiveness through the innovation-enabling exchanges of knowledge and the transfer of technologies. The process of creating innovations is more efficient because of the agglomeration of research and technology-based firms on or near a university campus. The proximity of a park to multiple sources of knowledge provides greater opportunities for the creation and acquisition of knowledge, especially tacit knowledge, and the geographic proximity therefore reduces the search and acquisition costs for that knowledge. The clustering of multiple research and technology-based organizations within a park enables knowledge spillovers, and with greater productivity from research resources and lower costs, prices for new technologies can be lower, stimulating their use and regional development and growth. In addition to the clustering of the organizations within a park, the geographic proximity of universities affiliated with a park matters too. Evidence shows that a park’s employment growth is greater, other things being the same, when its affiliated university is geographically closer, although evidence suggests that effect has lessened in the 21st century because of the information and communications technology revolution. Further stimulating regional growth, university spin-off companies are more prevalent in a park when it is geographically closer to the affiliated university. The two-way flow of knowledge enabled by clusters of research and technology-based firms in science parks benefits firms located on the park and the affiliated universities. Understanding the mechanisms by which the innovative performance of research and technology-based organizations is increased by their geographic proximity in a science park is important for formulating public and private sector policies toward park formations because successful national innovation systems require the two-way knowledge flow, among firms in a park and between firms and universities, that is fostered by the science park infrastructure.

scholarly journals A Retrieval Optimized Surveillance Video Storage System for Campus Application Scenarios

2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Shengcheng Ma ◽  
Xin Chen ◽  
Zhuo Li ◽  
Yingjie Yang
Keyword(s):  
Petri Net ◽  
Video Retrieval ◽  
Storage System ◽  
Video Data ◽  
University Campus ◽  
Surveillance Video ◽  
Key Frame ◽  
Video Storage ◽  
The University ◽  
Data Reading

This paper investigates and analyzes the characteristics of video data and puts forward a campus surveillance video storage system with the university campus as the specific application environment. Aiming at the challenge that the content-based video retrieval response time is too long, the key-frame index subsystem is designed. The key frame of the video can reflect the main content of the video. Extracted from the video, key frames are associated with the metadata information to establish the storage index. The key-frame index is used in lookup operations while querying. This method can greatly reduce the amount of video data reading and effectively improves the query’s efficiency. From the above, we model the storage system by a stochastic Petri net (SPN) and verify the promotion of query performance by quantitative analysis.

scholarly journals A Comprehensive Study on Future Smart Grids: Definitions, Strategies and Recommendations

2011 ◽  
Vol 127 (1) ◽  
pp. 28-34
Author(s):  
A. ANVARI MOGHADDAM ◽  
A.R. SEIFI
Keyword(s):  
Power Systems ◽  
Energy Management ◽  
Smart Grids ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Power Networks ◽  
Working Definition ◽  
Ambient Pollution ◽  
Power Systems Operation ◽  
Comprehensive Study

Abstract Nowadays, focusing on some critical points such as decreasing global warming and ambient pollution, better utilization of renewable energy resources, energy management and improvement of power systems operation becomes the field of attention for many modern societies. Although a large number of these aspects have been studied carefully and valuable results have been achieved, rarely can be found an article that makes a comprehensive review on different aspects of smart grids and their issues, therefore a working definition is presented that will help to put in context the framework for discussing and designing the Smart Grid. On the other hand, implementation of Smart Grids as the future of power Networks is strongly dependent on successive layers of functionality and capability using existing equipment and systems. Renewable energies (wind, solar), distributed automation and energy management gateways are some key elements of Smart Grids that will be covered discussed as well.

Energy management strategies for a fuel-cell/battery hybrid power system

2020 ◽  
pp. 095965182095851
Author(s):  
Bachir Bendjedia ◽  
Nassim Rizoug ◽  
Moussa Boukhnifer ◽  
Laid Degaa
Keyword(s):  
Energy Storage ◽  
Fuel Cell ◽  
Energy Management ◽  
Storage System ◽  
Management Strategies ◽  
Lithium Ion ◽  
Boost Converters ◽  
Hybrid Energy ◽  
Hydrogen Consumption ◽  
Hybrid Energy Storage

This article presents a comparative study between the performances of different energy management strategies for hybrid energy storage source supplying electric vehicle. In our case, the hybrid supply is composed of fuel cell as an energy source and lithium-ion batteries as a power buffer. The two storage systems are connected to the DC bus via DC/DC boost converters. The used management strategies influence greatly the hybrid energy storage source performances. For this reason, a new online strategy is developed to improve the fuel consumption and the hybrid source lifetime. The performances (hydrogen consumption and applied stress on each source) of this new strategy are compared with those obtained with literature strategies for 700 km of range. Furthermore, an experimental validation of two online energy management strategies is carried out to validate the simulation results using 1-kW test bench. The experimental results prove that the developed strategy improves hydrogen consumption compared to the frequency strategy and it improves also the lifetime of the hybrid storage system.

scholarly journals State-of-the-Art Artificial Intelligence Techniques for Distributed Smart Grids: A Review

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 1030 ◽  
Author(s):  
Syed Saqib Ali ◽  
Bong Jun Choi
Keyword(s):  
Artificial Intelligence ◽  
Smart Grid ◽  
Power System ◽  
Energy Management ◽  
Smart Grids ◽  
State Of The Art ◽  
Energy Resources ◽  
Distributed Energy ◽  
Artificial Intelligence Techniques ◽  
Home Energy Management

The power system worldwide is going through a revolutionary transformation due to the integration with various distributed components, including advanced metering infrastructure, communication infrastructure, distributed energy resources, and electric vehicles, to improve the reliability, energy efficiency, management, and security of the future power system. These components are becoming more tightly integrated with IoT. They are expected to generate a vast amount of data to support various applications in the smart grid, such as distributed energy management, generation forecasting, grid health monitoring, fault detection, home energy management, etc. With these new components and information, artificial intelligence techniques can be applied to automate and further improve the performance of the smart grid. In this paper, we provide a comprehensive review of the state-of-the-art artificial intelligence techniques to support various applications in a distributed smart grid. In particular, we discuss how artificial techniques are applied to support the integration of renewable energy resources, the integration of energy storage systems, demand response, management of the grid and home energy, and security. As the smart grid involves various actors, such as energy produces, markets, and consumers, we also discuss how artificial intelligence and market liberalization can potentially help to increase the overall social welfare of the grid. Finally, we provide further research challenges for large-scale integration and orchestration of automated distributed devices to realize a truly smart grid.

scholarly journals USING THE ENERGY EFFICIENCY HUB IN THE UNIVERSITY ENERGY MANAGEMENT SYSTEM IN THE CONTEXT OF PREVENTING A NEW OUTBREAK OF THE COVID-19 PANDEMIC

Management ◽  
2021 ◽  
Vol 33 (1) ◽  
pp. 9-18
Author(s):  
Ivan Gryshchenko
Keyword(s):  
Energy Efficiency ◽  
Energy Saving ◽  
Energy Management ◽  
Management System ◽  
Efficiency Analysis ◽  
Heat Energy ◽  
Energy Resources ◽  
Automated Information System ◽  
The University ◽  
Energy Efficiency Analysis

BACKGROUND AND OBJECTIVES. The problem addressed by the project is the need to develop a new approach to energy saving and energy efficiency management in higher education institutions (HEI), whose main components are energy management, energy audit, energy certification, monitoring based on the reasonable use of international standards ISO 50001: 2011, which allows reducing or completely eliminating the barriers to energy efficiency measures related to lack of awareness of energy saving potential.METHODS. The international protocol of efficiency measurement and verification is proposed to be used as a basis for methodological support of energy efficiency analysis and control in the automated information system of energy efficiency analysis. The method of rationing of heat energy consumption, which takes into account the required level of statistical significance of energy resources saving when carrying out energy saving measures, was used to control the energy efficiency of HUB use of knowledge on energy efficiency. The methodological support of the subsystem of analysis of energy efficiency of heat energy resources consumption is considered.FINDINGS. A three-part system for improving the energy efficiency of a university based on the HUB of energy efficiency knowledge is proposed: an automated dispatch management system; an automated information system for energy efficiency analysis and a corporate management system for the heat and power complex.CONCLUSION. Compliance with the consumption rate calculated using the proposed method during the whole study period (second half of 2019 – beginning of 2021) allows to obtain a statistically significant value of thermal energy savings, which will significantly reduce the energy costs of the university in the COVID-19 pandemic crisis. An example of the use of the proposed energy efficiency knowledge HUB for building 4 of the Kyiv National University of Technologies and Design is presented.

scholarly journals Semiactive Hybrid Energy Management System: A Solution for Electric Wheelchairs

Electronics ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 345 ◽  
Author(s):  
Sadam Hussain ◽  
Muhammad Umair Ali ◽  
Sarvar Hussain Nengroo ◽  
Imran Khan ◽  
Muhammad Ishfaq ◽  
...  
Keyword(s):  
Energy Management ◽  
High Power ◽  
Management System ◽  
Storage System ◽  
Lithium Ion ◽  
Energy Storage System ◽  
Energy Management System ◽  
Power Demand ◽  
Normal Medium ◽  
Hybrid Energy

Many disabled people use electric wheelchairs (EWs) in their daily lives. EWs take a considerable amount of time to charge and are less efficient in high-power-demand situations. This paper addresses these two problems using a semiactive hybrid energy storage system (SA-HESS) with a smart energy management system (SEMS). The SA-HESS contained a lithium-ion battery (LIB) and supercapacitor (SC) connected to a DC bus via a bidirectional DC–DC converter. The first task of the proposed SEMS was to charge the SA-HESS rapidly using a fuzzy-logic-controlled charging system. The second task was to reduce the stress of the LIB. The proposed SEMS divided the discharging operation into starting-, normal-, medium-, and high-power currents. The LIB was used in normal conditions, while the SC was mostly utilized during medium-power conditions, such as starting and uphill climbing of the EW. The conjunction of LIB and SC was employed to meet the high-power demand for smooth and reliable operation. A prototype was designed to validate the proposed methodology, and a comparison of the passive hybrid energy management system (P-HESS) and SA-HESS was performed under different driving tracks and loading conditions. The experimental results showed that the proposed system required less charging time and effectively utilized the power of the SC compared with P-HESS.

Sign in / Sign up

Export Citation Format

Share Document