Browsing by Author "Kurytnik, Igor Piotr"
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Item Safety analyse of cryptography protocol used within safety-related control systems in industry(Національний університет "Львівська політехніка", 2008) Franeková, Mária; Kállay, Fedor; Kurytnik, Igor PiotrIn the paper the possibilities of solution safety communication within area of safety-related control industry system are summarised with using cryptography techniques. Requirements to safety are based on generic standard for functional safety of Electrical/Electronic/Programmable Electronic (E/E/PE) systems IEC 61508 and standards, which define safety and security profiles in industrial network used in measurement and control systems. In mainly part of paper the model of safety-related communication protocol is described and overview of recommendations for selection of cryptography mechanisms and methods for their safety evaluation.Item Voltage control in the stator circuit of cage induction machine operating as generator in small scale hydropower plant(Publishing House of Lviv Polytechnic National University, 2012) Kandyba, Andrzej; Kalus, Marian; Kurytnik, Igor PiotrThe synthesis of RMS voltage control system in the stator circuit of squirrel cage induction machine based on the linear criterion of " optimum magnitude" by C. Kessler 'a was performed. The squirrel cage induction machine was operating as a generator in autonomous (isolated) network. Induction machine is driven by an induction machine supplied from the inverter, which simulates the low pressure head water turbine. Synthesis process of the control system was supported by experimental studies of this system. За лінійним критерієм модульного оптимуму (за Кесслером) синтезовано регулятор діючої напруги статора асинхронної машини з короткозамкненим ротором. Асинхронна машина з короткозамкненим ротором працює в режимі генератора в автономній мережі. Асинхронний генератор приводиться в рух асинхронним двигуном, що живиться від інвертора, для імітації гідротурбіни низького тиску. Адекватність отриманих результатів підтверджено експериментом.