| 摘要 |
This invention relates to contactless electrical machines and can be used in power supply equipment, alternative power engineering, and the production process of automation systems. Stator (1) of the proposed induction generator contains a two-core (4, 5) magnetic circuit with teeth and two three-phase windings. First, harmonic current flows through the first winding with coils (6, 7), while the third harmonic current goes via the winding with coils (8, 9). Coils (6, 7, 8, and 9) are made with a fixed step between neighbouring grooves. In the first and second three-phase windings (6, 7) and (8, 9) of the coil groups, individual coils are interconnected in an opposite series connection. Number Z1 of teeth in each core of stator (1) differs from the doubled number 2Z2 of teeth in each core (12, 13) of the rotor (2) by the number (X) of coil groups in the basic frequency of the first winding. The number of coil groups in each second winding phase with increased frequency is equal to 3X, and they are interconnected in accordant series connection. The number of coils in each coil group of the second winding phase is equal to Z1/9X where X is the number of coil groups. Number Z2 of teeth of each core (12, 13) in the rotor (2) is selected from the condition Z2 = 0.5X(9K+-1) where K = 3, 5, 7 ... is an odd number equal to or exceeding 3. A non-movable ring-shaped excitation winding (16) is fastened to cores (4, 5) on the stator (1) in the space between rotor (2) cores (12, 13). When the rotor (2) turns, the fundamental electromotive harmonic force is induced in cores (6, 7) while the third electromotive harmonic force is induced in cores (8, 9).<IMAGE>
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