| 摘要 |
The invention relates to an electric generator, with switched reluctance, with fixed inductor and induced, for the production of electricity in alternating current so that, due to the constructive particularities, the variation of magnetic flux is achieved through the mechanical movement of a magnetic circuit switch that performs the switching of routing of the stator magnetic circuits, without the relative displacement of the inductor against the induced and without the length variation of the electrical gap between those, usable in any energy system application, including renewable. According to the invention, the electric generator is composed in the one- phase basic version, in successive order, of inductor windings or inductor permanent magnets, transversally coiled respectively inserted on a circular ferromagnetic stator between adjacent poles, oriented so that the direction of the magnetization to be convergent towards induced windings transversally placed and coiled along the magnetic circuit between the next poles, for the production of electricity, by the switching of magnetic circuit through a ferromagnetic switch called "rotor", that performs a switching of magnetic flux in the induced windings with electric generator function, through the motion of mechanical rotation, that performs a magnetic circuit closing consecutively from two to two poles, on the "minimum reluctance" principle. In the case of some renewable energy applications (wind turbines or water turbines) where it is necessary the obtaining of frequency and voltage usable values at low rotative speeds of the rotor, the electric generator, according to the invention, can be realized with an additional number of one-phase stator poles in multiple of four, by the relationship : Psk=4xk poles, where k= 1,2,...,n; n ? N; for obtaining of frequency values usable by the network, at reduced nominal rotative speeds of the rotor, without the use of mechanical reducers or multipliers between the propeller shaft and the generator shaft. For the internal compensation of the starting reluctant torque (cogging) it is built the variant assembly of modular mono-phase stators stacks, placed coaxially and displaced in phase against to an monobloc rotor, or not displaced in phase, but coaxially placed against to an modular stacks rotor displaced in phase steps shifts, so that the dynamic and static torques sum to be zero at any position of the rotor.
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