Multi-pitch-varying power generating method of wind driven generator

Abstract

The invention provides a multi-pitch-varying power generating method of a wind driven generator. The method includes the steps that in a wind blowing environment, a controller transmits wind directionsignals of an anemoscope to a yaw device, the yaw device drives a power generating bin to rotate, a pitch varying device conforms to wind directions, the pitch varying device captures wind energy andconverts the wind energy into rotation potential energy of itself, and the pitch varying device drives the power generating bin to operate to generate power; in a rainfall breezeless environment, thepitch varying device is automatically transformed into a V structure with an upward opening and captures the gravitational potential energy of rainwater, the gravitational potential energy of the rainwater is converted into the rotation potential energy of the pitch varying device, and the pitch varying device drives the power generating bin to operate to generate power; in a sunny breezeless environment, the pitch varying device is automatically transformed and folded, solar energy is captured, and power is directly generated; and in a hurricane environment, the pitch varying device is automatically transformed to be parallel to the wind directions, impact force of hurricane to the pitch varying device is reduced, and the pitch varying device is in a self-protection state.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to a multiple-pitch power generation method of a wind generator. Background technique [0002] During the process of generating electricity, the wind speed will determine the speed of the blade rotation. If the blade rotates too fast, the wind will have a strong impact on the blade, which will seriously damage the blade. Therefore, when the wind is strong , the angle of attack of the blade needs to be reduced; when the wind force is small, the angle of attack of the blade needs to be increased. According to the search data of the research team, it is found that a pitch variable mechanism can effectively solve this problem. It can adjust the pitch angle at any time according to the change of wind speed and control the captured mechanical energy. On the one hand, it can ensure the maximum wind energy and reduce the impact of wind on the blades. Impact, which adopts the variable pi...

AI Technical Summary

Problems solved by technology

According to the search data of the research team, it is found that a pitch variable mechanism can effectively solve this problem. It can adjust the pitch angle at any time according to the change of wind speed and control the captured mechanical energy. On the one hand, it can ensure the maximum wind energy and reduce the impact of wind on the blades. Impact, which adopts the variable pitch control system and the variable speed constant frequency technology, the structure is relatively complex, the cost is high, and it brings a lot of inconvenience to the maintenance of the management personnel. Moreover, the current wind turbines can only capture wind energy. Neither sunny nor windy weather nor rainy and windless weather can capture wind energy for power generation, which restricts the continuous operation of wind turbines and reduces the power generation efficiency of wind turbines. Based on this, design a multi-pitch power generation method using natural energy with ingenious structure, simple principle, automatic pitch change and the ability to capture solar energy and rainwater potential energy

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