Hауково-Дослідний Електротехнічний Інститут Hаукововиробничого Об'Єднання "Хемз"
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Priority to UA4408948ApriorityCriticalpatent/UA8587A1/en
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The device comprises a self-commutated current inverter-based frequency converter with two current and frequency control inputs, the output being connected phase current and voltage sensors, a unit to set a rotation frequency, a comparison element, a speed control unit and a current control unit, the output being connected with a control frequency converter input, a flux linkage signal former, the input being connected with phase voltage and current sensors are connected in series.
UA4408948A1988-04-121988-04-12Device to control frequency- adjustable electric drive
UA8587A1
(en)