High Speed Turbine - Induction Generator System for Utilization of Renewable and Waste Energies

Jardan, R.K.; Nágy, I.

doi:10.1109/pesc.2007.4342433

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…The system is suitable for utilizing renewable (RES) or waste energy sources (WES) where steam or other low to medium pressure working medium is available or can be produced by utilizing RES / WES. The results achieved during the development have been disseminated in a considerable number of papers e.g [25][26][27]. The basic unit of the system is an ultra high speed Turbine-Generator set.…”

Section: F Excitation With Condensers and Pwm Controlled Inductors (mentioning

confidence: 99%

Comparative study of ultrahigh-speed induction generators with self-excitation

Jardan

Varga

Nágy

2014

22nd Mediterranean Conference on Control and Automation

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In the paper a comparative analysis is carried out on seven different self-excitation methods that have been developed in the past decades taking into account the technical and economical features of the methods compared. A novel solution based on resonant circuit application is described in more detail, and the theoretical considerations have been confirmed by computer simulations and laboratory test results *and nagy@get.bme.hu) Z. Varga is with the MTA-BME

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Section: F Excitation With Condensers and Pwm Controlled Inductors (mentioning

confidence: 99%

Comparative study of ultrahigh-speed induction generators with self-excitation

Jardan

Varga

Nágy

2014

22nd Mediterranean Conference on Control and Automation

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“…The pressure reduction is carried out in most cases by using special throttle valves, however, this way an environment-friendly way to generate electric power is missed. The basic idea of the subject is elaborated and the research work is described in more detail in the literature [1,2,3].…”

Section: Introductionmentioning

confidence: 99%

“…The high speed induction machines have special features that have to be taken into account during the development of the control and power electronics system. The problems, caused by the special parameters of the induction machine, will be discussed in connection with the Turbine -Generator -Converter system, studying the dynamic behaviour of the machine set, that is analyzed as a hybrid drive with an indirect speed control loop [3].…”

Section: Introductionmentioning

confidence: 99%

Special features of ultrahigh-speed induction generators applied in the utilization of renewable energy sources

Jardan

Nágy

Varga

2008

2008 International Symposium on Power Electronics, Electrical Drives, Automation and Motion

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Special features of ultrahigh-speed induction generators are analyzed, that are applied in a system developed to generate electric energy by utilizing renewable and waste energy resources. The solution is based on a system that consists of a high-speed turbine, coupled to a three-phase induction generator, an AC/AC converter and a supervisory control unit. The function of the system is to utilize the energy content of some working medium by a special high speed turbine that converts the energy content of the working medium into electric energy by the generator and the AC/AC converter. Various waste energy sources can also be utilized by applying the system, eg. energy that can be obtained during the process of pressure reduction in steam, gas and fluid networks. The electric power generated by the system can be fed back to the utility mains or it can be used in stand-alone mode to supply a selected group of loads. The paper considers the special properties of the system mainly in connection with the unusual behavior of the ultrahigh-speed induction generator. The requirements against the AC/AC converter are also overviewed. Control strategies of the system to ensure optimum and reliable performance are compared.

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