Incorporating network-level knowledge into Quality of Service control mechanisms for wireless LANs. Expansion of Wireless LANs as primary access technology for mobile computing devices has resulted in growing expectations of continuous area coverage and controlled Quality of Service. The work published to date defines QoS control mechanisms for a single WLAN cell, but fails to address challenges of multiple-cell networks. We aim at designing network-wide resource management mechanisms to dynamic ....Incorporating network-level knowledge into Quality of Service control mechanisms for wireless LANs. Expansion of Wireless LANs as primary access technology for mobile computing devices has resulted in growing expectations of continuous area coverage and controlled Quality of Service. The work published to date defines QoS control mechanisms for a single WLAN cell, but fails to address challenges of multiple-cell networks. We aim at designing network-wide resource management mechanisms to dynamically allocate resources to cells and users, taking into account user mobility and radio interference between multiple cells. Benefits from this research include competitive advantage to operators who will be able to differentiate service offerings and guarantee agreed QoS to their customers.Read moreRead less
Reducing Blackout Risk through Live Modelling and Monitoring. This project aims to reduce the risk of blackouts through the development of on-line systems for modelling and monitoring of loads and power system controllers. This project is a collaboration with Transgrid, Powerlink, Vencorp and ElectraNetSA, four Transmission companies renowned for innovation in the area of system stability. The project proposes to develop innovative algorithms and to implement these algorithms using advanced hard ....Reducing Blackout Risk through Live Modelling and Monitoring. This project aims to reduce the risk of blackouts through the development of on-line systems for modelling and monitoring of loads and power system controllers. This project is a collaboration with Transgrid, Powerlink, Vencorp and ElectraNetSA, four Transmission companies renowned for innovation in the area of system stability. The project proposes to develop innovative algorithms and to implement these algorithms using advanced hardware, software and communication systems to dynamically generate decision tools for safe and efficient power system operating conditions. These systems will also generate alarms if any risky operational situations arise.Read moreRead less
Investigation of Demand Diversity and Appropriate New Generation Entry into Electricity Market Simulation Tools. The power industry is currently facing a great challenge in providing
better market operation and management following recent devastating blackouts in North America, UK and Italy. This project aims at investigating major mechanisms of market simulation techniques including impacts from load diversity and approaches to defining appropriate new generation entry into the market. From th ....Investigation of Demand Diversity and Appropriate New Generation Entry into Electricity Market Simulation Tools. The power industry is currently facing a great challenge in providing
better market operation and management following recent devastating blackouts in North America, UK and Italy. This project aims at investigating major mechanisms of market simulation techniques including impacts from load diversity and approaches to defining appropriate new generation entry into the market. From the outcome of this project the National Electricity Market will be able to manage the uncertainties of load diversity (one of the most common blackout causes), and efficiently minimise risk associated with decisions on new generation entry to enhance electricity supply infrastructure.
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POWER DELIVERY IN A DEREGULATED ENVIRONMENT. The recent deregulation of the power industry has opened up new technical challenges that must be addressed in order to ensure fair and equitable market operation. Significant among these is the availability of alternative routes for the delivery of power, between and across different ownerships. In this scenario, a major challenge is to determine the minimum cost contractual arrangement for the delivery of required power. To achieve this, new techniq ....POWER DELIVERY IN A DEREGULATED ENVIRONMENT. The recent deregulation of the power industry has opened up new technical challenges that must be addressed in order to ensure fair and equitable market operation. Significant among these is the availability of alternative routes for the delivery of power, between and across different ownerships. In this scenario, a major challenge is to determine the minimum cost contractual arrangement for the delivery of required power. To achieve this, new techniques for the analysis of power systems are required. This proposal aims to provide solutions to these analysis problems and hence to provide software to assist with market operation.Read moreRead less
Cryogenic pipelines to replace trestle for liquefied gas transfer terminals. This project aims to develop geotechnical design tools, software, and publish design guidelines, for engineers to lay and keep cryogenic pipelines stable on the seabed. Transferring liquefied natural gas between floating tankers and onshore plants conventionally relies on a pipeline on a trestle system. As an alternative, novel subsea cryogenic pipelines are being considered. By ensuring the stability of subsea cryogeni ....Cryogenic pipelines to replace trestle for liquefied gas transfer terminals. This project aims to develop geotechnical design tools, software, and publish design guidelines, for engineers to lay and keep cryogenic pipelines stable on the seabed. Transferring liquefied natural gas between floating tankers and onshore plants conventionally relies on a pipeline on a trestle system. As an alternative, novel subsea cryogenic pipelines are being considered. By ensuring the stability of subsea cryogenic pipelines laid directly on the seabed, this project will provide significant benefits to Australia’s liquefied natural gas trade by unlocking substantial cost savings, and making this key export industry more competitive.Read moreRead less
Stability Analysis and Control for Large Scale Power Systems Incorporating FACTS Devices. Power system stability analysis and control is one of the most important issues in power systems. The problem becomes more serious in power systems with long transmission lines, such as the transmission systems in Australia. The ability of a power system to maintain stability depends to a large extent on the controls available on the system. Consequently, the study and design of power system controls are ve ....Stability Analysis and Control for Large Scale Power Systems Incorporating FACTS Devices. Power system stability analysis and control is one of the most important issues in power systems. The problem becomes more serious in power systems with long transmission lines, such as the transmission systems in Australia. The ability of a power system to maintain stability depends to a large extent on the controls available on the system. Consequently, the study and design of power system controls are very important for expanding systems. This project aims at investigating into stability assessment and control of large scale interconnected power systems incorporating FACTS (Flexible AC Transmission System) devices in a deregulated electricity market.Read moreRead less
Investigation of key factors affecting the polarisation based diagnostics of power transformers. To avoid system wide power interruptions, major assets in the electricity network must be always operating satisfactorily. One of the key assets in the electricity network is the power transformer. Currently many transformers are over 50 years old and failure of a transformer may result in long interruptions in supply and the loss of millions of dollars in revenue. The ageing of transformers needs to ....Investigation of key factors affecting the polarisation based diagnostics of power transformers. To avoid system wide power interruptions, major assets in the electricity network must be always operating satisfactorily. One of the key assets in the electricity network is the power transformer. Currently many transformers are over 50 years old and failure of a transformer may result in long interruptions in supply and the loss of millions of dollars in revenue. The ageing of transformers needs to be properly monitored to avoid catastrophic failures. This project will provide an innovative solution for the better understanding of the ageing processes of transformers and help
managers make correct decisions for maintenance and replacement strategies.
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Power systems with diverse generation - implications, control and capability. This research will generate a systematic methodology to handle the impact of the renewable energy sources on the NSW power grid. It increases our understanding of the impact of climate change policies relating to mandatory targets for greenhouse gas reduction helping to build Australia’s research capacity in the national priority area of an environmentally sustainable Australia. The anticipated methodology can also be ....Power systems with diverse generation - implications, control and capability. This research will generate a systematic methodology to handle the impact of the renewable energy sources on the NSW power grid. It increases our understanding of the impact of climate change policies relating to mandatory targets for greenhouse gas reduction helping to build Australia’s research capacity in the national priority area of an environmentally sustainable Australia. The anticipated methodology can also be seen as protecting the security of power infrastructure as well. Maintaining a critical energy infrastructure protects our way of life and ensures ongoing social, economic and environmental well being of Australia.Read moreRead less
A methodology for the control of harmonics due to large distorting loads. The ideal electricity supply has a voltage of prescribed frequencey and value with a sinusoidal waveshape. Modern electronic equipment such as digital commuication equipment and automatic manufacturing lines draw non-sinusoidal currents which distort the voltage waveform. Electricity suppliers are responsible for limiting voltage distoration to levels set by national standards. Techniques have been developed to allow them ....A methodology for the control of harmonics due to large distorting loads. The ideal electricity supply has a voltage of prescribed frequencey and value with a sinusoidal waveshape. Modern electronic equipment such as digital commuication equipment and automatic manufacturing lines draw non-sinusoidal currents which distort the voltage waveform. Electricity suppliers are responsible for limiting voltage distoration to levels set by national standards. Techniques have been developed to allow them to determine the maximum level of current distortion to which a particular customer is entitled. This project will developand verify a method for determining if a particular customer exceeds that entitlement.Read moreRead less
Capacity Enhancement, Energy-Loss Reduction and Voltage Control for Remote Three-Phase Distribution Feeders Supplying Electrical Power to Single-Wire Earth-Return Systems. Long distribution feeders supplying electrical energy to Single-Wire Earth-Return (SWER) systems are unique sub-systems of the electric power network in Australia. The SWER systems are inherently unbalanced and use conductors with high resistance values resulting in high energy losses. The capital costs of these systems are hi ....Capacity Enhancement, Energy-Loss Reduction and Voltage Control for Remote Three-Phase Distribution Feeders Supplying Electrical Power to Single-Wire Earth-Return Systems. Long distribution feeders supplying electrical energy to Single-Wire Earth-Return (SWER) systems are unique sub-systems of the electric power network in Australia. The SWER systems are inherently unbalanced and use conductors with high resistance values resulting in high energy losses. The capital costs of these systems are high due to the low area density of loads and the systems are challenged by increasing loads. New methods will be developed for load balancing, controlling losses and improving the power quality. Comparisons will be made between the new technologies and the reconstruction or augmentation of the feeders. It is expected that substantial economic and greenhouse emission benefits will result.Read moreRead less