CN109372695A - a wind power system - Google Patents

Abstract

The invention discloses a kind of wind generator systems, belong to technical field of electric power, including wind power generating set, voltage conversion unit, automatic Regulation unit and power load, the input terminal of the voltage output end connection voltage conversion unit of the wind power generating set, the output end of voltage conversion unit is separately connected automatic Regulation module and energy-storage units, automatic Regulation module is also connected with power load, the energy-storage units are also connected with master cpu, master cpu also connects automatic Regulation module by PWM module, wind generator system of the present invention has the function of multiple monitoring, real-time monitoring can be carried out to the important parameter in wind power generating set operational process, there is adjusting function simultaneously, such as when rotation speed of fan is too fast cause wind power generating set constant temperature increase when, rotation speed of fan can be reduced automatically by retarder, effective protection wind-force Generating set, while the design has PWM adjusting function, and output voltage can be adjusted, and meets the function of stablizing output.

Description

a wind power system

technical field

The invention relates to the field of electric power technology, in particular to a wind power generation system.

Background technique

Wind power refers to converting the kinetic energy of wind into electrical energy. Wind energy is a kind of clean and pollution-free renewable energy. It has been used by people for a long time, mainly through windmills to pump water, grind noodles, etc. Now, people are interested in how to use wind to generate electricity. The use of wind power to generate electricity is very environmentally friendly, and the wind energy reserves are huge, so it has been paid more and more attention by countries all over the world.

Wind power generation depends on wind turbines, and the operating state of wind turbines directly determines the quality of wind power generation and the service life of the system. In the prior art, only a single windmill is used to complete wind power conversion, which has a low degree of intelligence and cannot Monitoring and protection of abnormal conditions.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a wind power generation system to solve the above-mentioned problems in the background art.

To achieve the above object, the present invention provides the following technical solutions:

A wind power generation system, comprising a wind generator set, a voltage conversion unit, an automatic voltage regulation unit and an electrical load, the voltage output terminal of the wind generator set is connected to the input terminal of the voltage conversion unit, and the output terminals of the voltage conversion unit are respectively connected to the automatic voltage conversion unit. The voltage regulation module and the energy storage unit, the automatic voltage regulation module is also connected to the electrical load, the energy storage unit is also connected to the main control CPU, the main control CPU is also connected to the automatic voltage regulation module through the PWM module, and the main control CPU is also connected to There are Hall sensors for collecting the rotational speed information of the wind turbine and a temperature sensor for collecting the temperature information of the wind turbine. The main control CPU is also connected to the wind turbine through a reducer.

As a further technical solution of the present invention, the main control CPU is also connected with an alarm device for sending out an audible and visual alarm signal when an abnormal situation is encountered.

As a further technical solution of the present invention, the main control CPU is also connected with a display for displaying the information of rotational speed, temperature and electric quantity.

As a further technical solution of the present invention, the main control CPU is also connected with a GPRS module for wirelessly connecting a remote monitoring terminal or a mobile device.

As a further technical solution of the present invention: the energy storage unit includes a capacitor C1, a capacitor C2, a battery E, a triode V1 and a relay K, and one end of the capacitor C1 is connected to the contact K-1 of the relay K and the input voltage U1. The other end of the contact K-1 is connected to the positive electrode of the battery E, the resistor R1, the capacitor C2, the collector of the transistor V1 and the voltage VCC, the other end of the resistor R1 is connected to the base of the transistor V1 and the resistor R2, and the other end of the resistor R2 is connected The relay K, the other end of the capacitor C2, the other end of the capacitor C1, the negative electrode of the battery E and the ground, the emitter of the transistor V1 is connected to the other end of the relay K.

As a further technical solution of the present invention: the alarm device includes a resistor R3, a transistor V2, a speaker B and a diode D1, the base of the transistor V2 is connected to the resistor R2, the other end of the resistor R2 is connected to the output signal ADC of the main control CPU, and the transistor V2 The emitter of the diode D1 is connected to the anode, the cathode of the diode D1 is grounded, the collector of the transistor V2 is connected to the speaker B, and the other end of the speaker B is connected to the voltage VCC.

As a further technical solution of the present invention: the diode D1 is a light emitting diode.

Compared with the prior art, the beneficial effects of the present invention are: the wind power generation system of the present invention has multiple monitoring functions, can perform real-time monitoring on important parameters during the operation of the wind power generating set, and has a control function at the same time, for example, when the speed of the fan is too fast When the temperature of the wind turbine continues to rise, the speed of the fan can be automatically reduced by the reducer to effectively protect the wind turbine. At the same time, the design has a PWM control function, which can adjust the output voltage to meet the function of stable output.

Description of drawings

FIG. 1 is an overall block diagram of the present invention.

FIG. 2 is a circuit diagram of an energy storage unit.

Figure 3 circuit diagram of the alarm.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figure 1-3, a wind power generation system, including a wind turbine for completing wind power conversion, a voltage conversion unit for completing filtering, step-down, and rectification operations, an automatic voltage regulation unit for adjusting the output voltage, and Electric load, the voltage output end of the wind turbine is connected to the input end of the voltage conversion unit, the output end of the voltage conversion unit is respectively connected to the automatic voltage regulation module and the energy storage unit, and the automatic voltage regulation module is also connected to the electric load. The energy storage unit is also connected to the main control CPU, and the main control CPU is also connected to the automatic voltage regulation module through the PWM module, and the main control CPU is also connected with a Hall sensor for collecting the rotational speed information of the wind turbine and for collecting the temperature of the wind turbine. Information of the temperature sensor, the main control CPU is also connected to the wind turbine through the reducer.

The wind turbine completes the wind power conversion and outputs the voltage to the voltage conversion unit for filtering, step-down, rectification and other operations. The voltage output from the voltage conversion unit is divided into two channels, and one channel enters the energy storage unit for voltage storage in case of emergency. If necessary, the other channel is output to the electrical load through the automatic voltage regulation module. The automatic voltage regulation module is controlled by the PWM module and the main control CPU to realize PWM voltage regulation and meet the output stability. Hall sensor and temperature sensor collect speed signal and temperature signal respectively and feed them back to the main control CPU. The main control CPU displays the collected data through the display. When the speed is too high, the speed can be adjusted through the reducer to effectively protect Wind turbines can also carry out short-range and long-distance alarms through alarms and GPRS modules.

Embodiment 2: On the basis of Embodiment 1, the energy storage unit of this design includes a capacitor C1, a capacitor C2, a battery E, a transistor V1 and a relay K, and one end of the capacitor C1 is connected to the contact K-1 of the relay K and the input voltage. U1, the other end of the contact K-1 of the relay K is connected to the positive electrode of the battery E, the resistor R1, the capacitor C2, the collector of the transistor V1 and the voltage VCC, the other end of the resistor R1 is connected to the base of the transistor V1 and the resistor R2, the resistor The other end of R2 is connected to the relay K, the other end of the capacitor C2, the other end of the capacitor C1, the negative electrode of the battery E and the ground, and the emitter of the transistor V1 is connected to the other end of the relay K. The relay K in the circuit is a normally closed contact relay. Due to the voltage dividing effect of the resistor R1 and the resistor R2, the base voltage of the triode V1 increases with the voltage of the battery E, and when it reaches the base conduction of the triode V1. When the voltage is turned on, the transistor V1 is turned on, the relay K is triggered, and its contact K-1 is disconnected, which realizes overcharge protection and effectively protects the battery E.

The alarm includes resistor R3, transistor V2, speaker B and diode D1. The base of transistor V2 is connected to resistor R2, the other end of resistor R2 is connected to the output signal ADC of the main control CPU, the emitter of transistor V2 is connected to the anode of diode D1, and the diode The cathode of D1 is grounded, the collector of the transistor V2 is connected to the speaker B, and the other end of the speaker B is connected to the voltage VCC. If the base of the transistor V2 receives the output signal ADC of the main control CPU, it can trigger conduction, and the speaker B and the light-emitting diode D1 will give an audible and visual alarm.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the appended claims. All changes within the meaning and range of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. a kind of wind generator system, including wind power generating set, voltage conversion unit, automatic Regulation unit and power load, It is characterized in that, the input terminal of the voltage output end connection voltage conversion unit of the wind power generating set, voltage conversion unit Output end be separately connected automatic Regulation module and energy-storage units, automatic Regulation module is also connected with power load, the energy storage list Member is also connected with master cpu, and master cpu also connects automatic Regulation module by PWM module, is also connected with use on the master cpu Hall sensor in acquisition wind power generating set rotary speed information and temperature for acquiring wind power generating set temperature information Sensor, master cpu also pass through retarder and connect wind power generating set.

2. a kind of wind generator system according to claim 1, which is characterized in that be also connected with use on the master cpu In the alarm for issuing sound and light alarm signal when encountering abnormal conditions.

3. a kind of wind generator system according to claim 1, which is characterized in that be also connected with use on the master cpu In the display for showing revolving speed, temperature, information about power.

4. a kind of wind generator system according to claim 1, which is characterized in that be also connected with use on the master cpu In the GPRS module for being wirelessly connected remote monitoring terminal or mobile device.

5. a kind of wind generator system according to claim 1, which is characterized in that the energy-storage units include capacitor C1, Capacitor C2, battery E, triode V1 and relay K, the contact K-1 and input voltage of one end connection relay K of capacitor C1 The other end connection anode of battery E of the contact K-1 of U1, relay K, resistance R1, capacitor C2, triode V1 collector and The other end of the base stage and resistance R2 of the other end connecting triode V1 of voltage VCC, resistance R1, resistance R2 connects relay K, electricity Hold the cathode and ground of the other end of C2, the other end of capacitor C1, battery E, the emitter connection relay K's of triode V1 is another One end.

6. a kind of wind generator system according to claim 2, which is characterized in that the alarm includes resistance R3, three Pole pipe V2, loudspeaker B and diode D1, the base stage of triode V2 connect resistance R2, and the other end of resistance R2 connects the defeated of master cpu The anode of the emitter connection diode D1 of signal ADC out, triode V2, the minus earth of diode D1, the collection of triode V2 Electrode connects loudspeaker B, and the other end of loudspeaker B connects voltage VCC.

7. a kind of wind generator system according to claim 6, which is characterized in that the diode D1 is light-emitting diodes Pipe.