Generator structure complex, but can use a simple model to explain the basic principle of it. Figure I -9 (a)Is a model of three phase synchronous generator. 1. Some chariot machine of magnetic circuit and magnetic flux structurally, model is divided into two parts. Part of stator is fixed, it is made of many hollow round thin silicon steel sheet pile into a cylinder, butyl 3 on the inner circle of trough, trough the direction perpendicular to the paper, three of the same coil is placed in slot AX, and BY CZ, they apart in space position, 120, outside the coil bread has insulation materials, the coil in the stator slot is three-phase emf orchid phase coil, collectively known as the stator winding. The other part is rotor, it consists of a lot of thick steel sheet pile, on the rotor moves around a lot of coil, called the field winding, when direct current (I), through the field winding, according to current can produce a magnetic field, magnetic field direction according to the principle of right of the direction of the spiral, plus or minus two magnetic N pole rotor. S very; The rotor by the prime mover drag to equiangular rotation speed & infin; (Radians/second)According to the counterclockwise. Model from electricity generation in principle can be divided into magnetic circuit and electric circuit. And that is the so-called magnetic circuit lines go way, from the N pole magnetic field lines, after the air gap between the stator and rotor to the stator iron core, then through air and S soul, into the s-class, then back to the N pole again after the rotor iron core, touch very surface magnetic field lines is roughly to the distribution of the as sine wave, also is the center of the magnetic pole magnetic field lines up, the less the farther left the center lines of magnetic force, in the middle of the N pole and S waste, the lines of magnetic force is zero. 2. The stator circuit principle of three-phase called electromotive force see circuit which is formed by the stator coil. Each coil end button on the symmetry position. A, B. C is called the coil of wall, and another group of terminal x, y, z is known as the end, according to the law of electromagnetic induction, when turned on at a constant Angle in the direction shown by the figure in the rotational speed rotates, in each coil can sense a sine wave motor. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
