Wind power generation device

Abstract

The invention discloses a wind power generation device includes a synchronous motor. A rotary support is arranged at one side in the synchronous motor and a connecting shaft is arranged on the other side. A support structure is arranged between the rotary support and the connecting shaft. Connecting devices are arranged on the top part and the inner side of the bottom part of the synchronous motor. The connecting devices are fixedly connected with the synchronous motor. An excitation cable and a sliding ring are arranged respectively on the connecting device on the top part of the synchronous motor. A generator controlling device is arranged on the excitation cable. The sliding ring and the connecting device adopt detachable connection. A rotor winding is arranged on the sliding ring. An impeller assembly is arranged on the connecting device on the bottom part of the synchronous motor. A blade propeller-adjusting device is arranged on the impeller assembly. The wind power generation device is small in occupied space, high in wind-energy utilization rate and even in stress applied to blades. At the same time, permanent-magnet excitation is changed into electrical excitation so that not only cost is saved, but excitation current can also be adjusted arbitrarily.

Description

technical field [0001] The invention relates to a power generating device, in particular to a wind power generating device. Background technique [0002] A wind turbine is a device that converts wind energy into mechanical energy, and then drives a generator to generate electricity. Existing generators are generally divided into horizontal-axis wind generators and vertical-axis wind generators. These two generators usually have a larger volume and take up more space, and when the wind force is low, The wind power is not enough to drive the generator to generate electricity, and there is a situation that the utilization rate of wind energy is not high. At the same time, most of the general wind generators use permanent magnets for excitation. The permanent magnets are embedded in the rotor core and fixed on the rotor bracket. However, the permanent magnets are expensive. It is beneficial to cost saving, and this excitation method cannot be adjusted. Contents of the inventi...

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Problems solved by technology

Existing generators are generally divided into horizontal-axis wind generators and vertical-axis wind generators. These two generators usually have a larger volume and take up more space, and when the wind force is low, The wind power is not enough to drive the generator to generate electricity, and there is a situation that the utilization rate of wind energy is not high. At the same time, most of the general wind generators use permanent magnets for excitation. The permanent magnets are embedded in the rotor core and fixed on the rotor bracket. However, the permanent magnets are expensive. Conducive to cost savings, and this excitation method is not adjustable

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