Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Consumer Comfort (2)
- Demand response (2)
- Demand side management (2)
- Integer linear programming (2)
- T-Type NPC inverter (2)
-
- AMI Corpus (1)
- APF (1)
- Acoustic event detection (1)
- Active Power Filter future (1)
- Bayesian network (1)
- Broadband subspace estimation (1)
- Bus Voltage Frequency (1)
- Bus Voltage RoCoF (1)
- Capacity planning (1)
- Care management (1)
- Centre of Inertia (1)
- Coal (1)
- Consumer behaviour (1)
- Convolution (1)
- Cough database (1)
- Cough event detection (1)
- Cryptanalysis (1)
- Deconvolution (1)
- Distance Protection co-ordination (1)
- Distribution Network (1)
- Embedded Generation (1)
- Energy management (1)
- Fossil fuels (1)
- Hysteresis current control (1)
- IBM Cloud (1)
Articles 1 - 14 of 14
Full-Text Articles in Engineering
Re-Annotation Of Cough Events In The Ami Corpus, Paul Leamy, Damon Berry, David Dorran, Ted Burke
Re-Annotation Of Cough Events In The Ami Corpus, Paul Leamy, Damon Berry, David Dorran, Ted Burke
Conference papers
Cough sounds act as an important indicator of an individual's physical health, often used by medical professionals in diagnosing a patient's ailments. In recent years progress has been made in the area of automatically detecting cough events and, in certain cases, automatically identifying the ailment associated with a particular cough sound. Ethical and sensitivity issues associated with audio recordings of coughs makes it more difficult for this data to be made publicly available. However, without the public availability of a reliable database of cough sounds, developments in the area of audio event detection are likely to be hampered. The purpose …
The Deployment Of An Iot Network Infrastructure, As A Localised Regional Service, John Fox, Andrew Donnellan, Liam Doumen
The Deployment Of An Iot Network Infrastructure, As A Localised Regional Service, John Fox, Andrew Donnellan, Liam Doumen
Conference papers
The Internet of things (IoT) is fast evolving with a wide range of technologies being designated specifically as IoT solutions. Studies on such solutions generally reference the specific communication medium while negating the complete architecture of the IoT system. From a system perspective, a complete IoT solution can be separated into three categories, the data collector, the communication method and the cloud platform service. The data collector relates to the embedded system device (or the `things' element) at the source of the application, the communication method relates to the network protocol used to send or receive the data and the …
Sliding Mode Control Strategy For Three-Phase Three-Level T-Type Shunt Active Power Filters, Hasan Komurcugil, Sertac Bayhan, Samet Biricik
Sliding Mode Control Strategy For Three-Phase Three-Level T-Type Shunt Active Power Filters, Hasan Komurcugil, Sertac Bayhan, Samet Biricik
Conference papers
In this paper, a sliding mode control (SMC) strategy is proposed for three-phase three-level T-type shunt active power filters (SAPF). The proposed control strategy has the ability to balance the capacitor voltages with respect to the neutral-point. The proposed SMC strategy is formulated in the natural frame which eliminates abc/dq transformation and two PI controllers compared to the design in the dq frame. In natural frame, only one PI controller is needed to generate the amplitude of grid current reference. The output of the PI controller is multiplied by the unity sinusoidal waveforms, obtained from the grid voltages, so as …
Three-Phase Two-Leg T-Type Converter Based Active Power Filter, Samet Biricik, Hasan Komurcugil, Mohamed Trabelsi
Three-Phase Two-Leg T-Type Converter Based Active Power Filter, Samet Biricik, Hasan Komurcugil, Mohamed Trabelsi
Conference papers
In this work, a three-phase two-leg T-type active power filter topology is investigated when a three-level hysteresis band current modulation technique is applied. The three-phase two-leg T-type configuration which utilizes eight switching devices together split DC link capacitor banks is able to improve the reliability of the system as well as effectively reduces the power losses. The compensation of the current harmonics at each phase are achieved successfully with the control of phase-a and phase-b. Using this technique, the phase-c is directly connected to the midpoint of the split capacitors, which eliminates the necessity of additional control on the phase-c. …
Demand Response And Consumer Inconvenience, Chittesh Veni Chandran, Malabika Basu, Keith Sunderland
Demand Response And Consumer Inconvenience, Chittesh Veni Chandran, Malabika Basu, Keith Sunderland
Conference papers
Balancing the energy demand and generation using the latest load management technologies is considered as an immediate requirement for peak demand management and to improve the operation of electrical distribution networks. However, load management technologies depriving consumers of utilizing their personal resources could be perceived as a consumer right violation by many consumers, and thus, the success of the program is significantly dependent on consumer satisfaction. This paper probes consumer engagement plans through an algorithm to minimize the consumer inconvenience caused by the load management/demand response (DR) program. Four different consumer engagement plans are proposed for consumers with different tolerance …
Impact On Distribution System Protection With The Integration Of Eg On The Distribution Network, Jane Courtney, Aaron Mcdonnell
Impact On Distribution System Protection With The Integration Of Eg On The Distribution Network, Jane Courtney, Aaron Mcdonnell
Conference papers
A significant increase in EG connections on the distribution network over the past decade in Ireland has presented challenges to the Distribution System Operator (DSO). The connection of EG can cause co-ordination of Distance protection to be altered and has resulted in variations in short circuit levels. Multidirectional power flow has been introduced into a Distribution system that was not designed for the direction change in current flow. The impact of connecting EG to a typical 38 kV Distribution Network was demonstrated as part of this study. Increasing fault levels and protection co-ordination selectivity problems were identified when the network …
Reliability Issues Caused By The Retirement Of Large Thermal Generation Facilities: An Irish Case Study, Kyle Lawson, Jane Courtney
Reliability Issues Caused By The Retirement Of Large Thermal Generation Facilities: An Irish Case Study, Kyle Lawson, Jane Courtney
Conference papers
Like all developed countries Ireland faces increasing pressure to reduce their carbon footprint. Part of the governments plans include the scaling back of fossil fuel generation facilities and increasing renewable resources. Moneypoint is Irelands only coal fired generation station. In 2025 Moneypoint is due to reach the end of its life cycle. At this point the Irish government will have to make a decission on the future of the generation facility. Currently Moneypoint is responsible for the generation of approximately 10 % of Irelands energy needs. In this paper, the removal of Moneypoint from the Irish generation portfolio will be …
Phase-Only Digital Encryption Using A Three-Pass Protocol, Jonathan Blackledge, Paul Tobin, W. Govere, S. Sibanda, C. M. Adolfo
Phase-Only Digital Encryption Using A Three-Pass Protocol, Jonathan Blackledge, Paul Tobin, W. Govere, S. Sibanda, C. M. Adolfo
Conference papers
Abstract—This paper considers an application of phase-only digital encryption to the three-pass protocol leading to a new ‘nokey- exchange algorithm’. After providing a study on the theoretical background to the method, an algorithm is presented on a step-by-step basis together with three examples of cryptanalysis. A prototype MATLAB function is provided for validation of the approach and for further development by interested readers.
Photovoltaic Supplied T-Type Three- Phase Inverter With Harmonic Current Compensation Capability, Zahera Batool, Samet Biricik, Hasan Komurcugil, Tuan Ngo, Tuyen V. Vu
Photovoltaic Supplied T-Type Three- Phase Inverter With Harmonic Current Compensation Capability, Zahera Batool, Samet Biricik, Hasan Komurcugil, Tuan Ngo, Tuyen V. Vu
Conference papers
In this paper, a T-Type grid-connected inverter with harmonic current compensation capability is proposed and studied for the on-grid photovoltaic (PV) systems. This idea is based on the modification of the existing photovoltaic inverter control algorithm with the adaptation of active power filter control algorithm. The grid-connected PV inverter has similar topology and control methods as that of the active power filter systems. However, such multifunctional inverters have not yet matured for commercial use and call for more research. In this work, a conventional phase locked-loop algorithm is used to determine the angular position of the synchronous reference of the …
Series Compensation To Increase Power Flow: A Case Study On The Irish Transmission System, Aidan Heffernan, Jane Courtney
Series Compensation To Increase Power Flow: A Case Study On The Irish Transmission System, Aidan Heffernan, Jane Courtney
Conference papers
Ireland presents an interesting case study for transmission network strengthening. The majority of load in the country is located at the nation's capital, Dublin, in the East, while most of the new conventional generation and renewable generation are found in the South-West. Power is transferred between the two via a 400 kV network. This leads to large cross- country power flows. This power distribution disparity is due to increase. A large thermal generating station which is connected to the 400 kV system in the West, will close by 2025. This generation will be replaced partially with wind generation in the …
Building A Risk Model For The Patient-Centred Care Of Multiple Chronic Diseases, Stephane Deparis, Pierpaolo Tommasi, Alessandra Pascale, Hicham Rifai, Julie Doyle, John Dinsmore
Building A Risk Model For The Patient-Centred Care Of Multiple Chronic Diseases, Stephane Deparis, Pierpaolo Tommasi, Alessandra Pascale, Hicham Rifai, Julie Doyle, John Dinsmore
Conference papers
With the increase of multimorbidity due to population ageing, managing multiple chronic health conditions is a rising challenge. Machine-learning can contribute to a better understanding of persons with multimorbidity (PwMs) and how to design an effective framework of care and support for them. We present a risk model of older PwMs that was derived from the TILDA dataset, a longitudinal study of the ageing Irish population. This model is based on a 26-nodes Bayesian network that represents patients possibly having one or more chronic conditions among diabetes, chronic obstructive pulmonary disease and arthritis, through a joint probability distribution of demographic, …
Impact Of Consumer Profiles On A Consumer Convenience Prioritised Demand Response, Chittesh Veni Chandran, Keith Sunderland, Malabika Basu
Impact Of Consumer Profiles On A Consumer Convenience Prioritised Demand Response, Chittesh Veni Chandran, Keith Sunderland, Malabika Basu
Conference papers
Distribution network (DN) load flexibility has simultaneously created challenges and opportunities. The major challenge is to meet the demand-supply balance while maintaining a positive profit-loss ratio. Further, Government enforced climate change policies attract low carbon technology (LCT) distributed energy resources (DER), which further complicate matters. Along with DN, the domestic appliance industry has undergone drastic modernization leading to appliances with advanced control and power efficient technologies as well as automation capabilities. This paper proposes a demand response (DR) program that facilitates these advancements while micromanaging the domestic load consumption pattern so as to manage peak demand in the network. This …
Detection Of Grid Voltage Anomalies Via Broadband Subspace Decomposition, Samet Biricik, Soydan Redif
Detection Of Grid Voltage Anomalies Via Broadband Subspace Decomposition, Samet Biricik, Soydan Redif
Conference papers
Due to the increase of sensitive loads on the mains power grid, measurement and monitoring of the power quality (PQ) have become an important factor for both consumers and operators. As is well-known, PQ problems occur in a very short time period with specific characteristics. In transmission or distribution systems, power quality data are collected from monitoring devices such as digital fault recorders, power quality and dynamic system monitors, etc. The recorded data has to be analysed in order to understand system anomalies. These anomalies may be due to sources of broadband noise. In this study, we employ broadband subspace …
Impact Of Loss Of Generation On Bus Voltage Frequency And Rocof, Damien Doheny, Michael Conlon
Impact Of Loss Of Generation On Bus Voltage Frequency And Rocof, Damien Doheny, Michael Conlon
Conference papers
This study investigates how the loss of a generator impacts bus voltage RoCoF post-disturbance. The results show that the fastest bus voltage RoCoFs will occur close to generators impacted the most by the disturbance but this may not be the closest generator to the disturbance. The study also demonstrates a simple method that can be used to identify the generator that will be impacted most after a disturbance and hence the network location that will experience the fastest RoCoF.