Innovative Grid-Connected, Small-Scale Wind Turbine Generators Offering Low Cost and Wide Operating Speed Range. Growing concerns about sustainability issues with fossil fuels have resulted in strong interest in wind power worldwide. Grid-connected inverters are an efficient way of utilising small wind turbines on domestic, farming or small commercial properties which have access to the power grid. Existing small-scale, grid-connected wind turbines are expensive and have a limited operating wind ....Innovative Grid-Connected, Small-Scale Wind Turbine Generators Offering Low Cost and Wide Operating Speed Range. Growing concerns about sustainability issues with fossil fuels have resulted in strong interest in wind power worldwide. Grid-connected inverters are an efficient way of utilising small wind turbines on domestic, farming or small commercial properties which have access to the power grid. Existing small-scale, grid-connected wind turbines are expensive and have a limited operating wind speed range. We are investigating new designs for low-cost wind turbine generators which can produce power over a wide range of wind speeds. The project should result in a greater application of small-scale wind generators in Australia and will lead to reductions in fossil fuel usage and greenhouse gas emissions.Read moreRead less
Wide Speed Range, Inverterless, Constant Current Mode Alternator. Increasing auxiliary electric power demands in cars due to proposed new features such as electromechanical valves and active suspension has created a pressing need for a higher power car alternator. There has also been a continuing need for improved alternators for small-scale renewable energy generation such as wind turbines. These applications require the lowest possible cost solution which meets the challenging technical spec ....Wide Speed Range, Inverterless, Constant Current Mode Alternator. Increasing auxiliary electric power demands in cars due to proposed new features such as electromechanical valves and active suspension has created a pressing need for a higher power car alternator. There has also been a continuing need for improved alternators for small-scale renewable energy generation such as wind turbines. These applications require the lowest possible cost solution which meets the challenging technical specifications. Present research in this area is focussed on expensive inverter-based methods. We propose a low-cost, "inverterless" alternator configuration based on a specially-designed interior permanent magnet machine operating in a new current source mode.Read moreRead less
Virtual acoustic sensors for active noise control systems. Traditional active noise control systems achieve the greatest noise reduction at the microphone error sensor(s). It is often desirable to achieve the maximum noise reduction remote from such sensors. Virtual sensing technology, the focus of this application, has the promise to replace traditional microphone sensing by projecting the zone of quiet away from the sensor microphones and directly into the ear of the user of the active noise c ....Virtual acoustic sensors for active noise control systems. Traditional active noise control systems achieve the greatest noise reduction at the microphone error sensor(s). It is often desirable to achieve the maximum noise reduction remote from such sensors. Virtual sensing technology, the focus of this application, has the promise to replace traditional microphone sensing by projecting the zone of quiet away from the sensor microphones and directly into the ear of the user of the active noise control system. This will revolutionise the sensing used in active noise control systems, and in doing so allow the realisation of active noise control in applications that have previously been infeasible.Read moreRead less