CN215009720U - Wind power supply system for expressway warning board - Google Patents

Abstract

A wind power supply system for a highway warning board comprises a wind power generation device and a current processing circuit. The current processing circuit includes: the device comprises a rectifier, a filter, a first storage battery, a second storage battery, an output control circuit and a controller; the current generated by the wind power generation device is processed and stored, and then the stable current is provided for the warning board according to the requirement, so that the problem of power supply of the warning board is solved, and the effects of energy conservation and environmental protection are achieved.

Description

Wind power supply system for expressway warning board

Technical Field

The utility model relates to a highway warning screen power supply unit specifically is a highway wind-force power supply system

Background

With the rapid development of economy in China, the traffic tool serves as a public service of society and rises rapidly. The high-speed warning board is used for reminding a driver of the road condition in front of the driver.

The principle of wind power generation is that wind power drives windmill blades to rotate, and then the rotating speed is increased through a speed increaser, so that a generator is promoted to generate electricity. According to current wind generator technology, a breeze speed (of the order of a breeze) of about three meters per second can be used to generate electricity. Wind power generation is forming a hot tide in the world because it has no fuel problems and does not produce radiation or air pollution.

The small wind power generation system has high efficiency, but the small wind power generation system is not only composed of a generator head, but also has a certain technological content: the system comprises a wind driven generator, a charger and a digital inverter. The wind driven generator consists of a machine head, a rotating body, a tail wing and blades. The wind power generation system comprises a wind power generator, a rectifier, a controller, a storage battery, an inverter and a load, and the structure and the working principle of the wind power generation system belong to the known technology and are not described more than necessary.

China is a vast country with vast numbers of freeways built in the national plan, and the country has wide span and is difficult to maintain and supply power for some service facilities on roads. How to solve the service and power supply in the road is a problem that needs improvement. However, the amount of flow of the vehicle running on the expressway is not uniform and may be large or small, and therefore, the amount of electricity generated by the wind power is not uniform, and the warning board may be overlooked by directly supplying such a current to the warning board.

In addition, the traffic flow on the highway changes along with time, the traffic flow is different in different months in a year, the traffic flow is different in different time periods in the same day, the traffic flow is large in the peak period of the day, and the traffic flow is small in other time periods. The generated wind energy is different due to different vehicle flow rates, and further the generated electric quantity is different; therefore, how to adapt to the change situation of the vehicle flow and store the generated wind power according to the situation is also a technical problem to be solved.

Disclosure of Invention

The utility model provides a highway warning sign wind power supply system provides electric power for the warning screen along the way through the wind power generation set who installs greenbelt in the middle of the highway. The wind power generation system can store the generated wind power under the condition of adapting to different vehicle flow rates, thereby improving the utilization rate of resources and saving the cost.

The utility model adopts the following technical scheme:

the utility model provides a highway warning sign wind power supply system, includes wind power generation set and current processing circuit, its characterized in that: the current processing circuit includes: the device comprises a rectifier, a filter, a first storage battery, a second storage battery, an output control circuit and a controller; the output end of the wind power generation device is electrically connected with the input end of a rectifier, the output end of the rectifier is connected with a node (A) after passing through a filter, the first pole of a first storage battery is connected with the node (A), and the second pole of the first storage battery is connected with a first voltage (V1); a second pole of the second battery is connected to the second voltage (V2), a first pole of the second battery is connected to a second pole of the second switching transistor (M2), and a first pole of the second switching transistor (M2) is connected to the node (a); the output control circuit comprises a first switching transistor (M1), a first pole of the first switching transistor (M1) being connected to a node (a), a second pole thereof being connected to a load; the control electrode of the first switch transistor is connected with a first control signal end, and the control electrode of the second switch transistor is connected with a second control signal end; the controller is configured to generate a first control signal for controlling the first switching transistor (M1) and a second control signal for controlling the second switching transistor (M2).

Preferably, the wind power generation device comprises a shell (5), an inner rotating shaft (2), an outer rotating shaft (4) and fan blades (1); the shell (5) is cylindrical, and the inner rotating shaft (2) is rotatably fixed at the central shaft of the shell (5); the external rotating shaft (4) is sleeved outside the internal rotating shaft (2); the external rotating shaft (4) and the internal rotating shaft (2) can rotate together; the internal rotating shaft (2) is fixedly connected with a rotor of the generator; a plurality of fan blades (1) are mounted on the outer surface of the external rotating shaft, and the fan blades (1) are arc-shaped blades; seted up a plurality of logical grooves on the outer wall of casing (5), lead to the groove edge the vertical direction of outer wall of casing (5) extends, it is used for the air inlet to lead to the groove, and wind that gets into in casing (5) through the groove promotes flabellum (1) and rotates, and the rotation of flabellum (1) drives outside pivot (4) and rotates, and then drives inside pivot (2) and rotate.

The utility model discloses according to the change condition of wind-force, adopt the combination mode of major-minor battery, under the not enough condition of wind-force power generation, only use a main storage battery to charge, under the too much condition of wind-force power generation, under the condition that main storage battery is full of, open the vice battery automatically and replenish and charge, so can avoid among the prior art to charge repeatedly a large capacity battery, cause the life-span reduction of large capacity battery easily, the large capacity battery that more renews and the expense loss that causes. The utility model provides a warning screen carry out the electric power problem that shows. The utility model discloses make full use of the wind energy that the automobile motion produced, convert this part wind energy into the electric energy, played energy-concerving and environment-protective effect.

Drawings

FIG. 1 is a perspective view of a power generation section of a wind power plant on a highway;

FIG. 2 is a schematic view of an external shaft and blades of the wind power generation apparatus on the highway;

FIG. 3 is a schematic illustration of the placement of a highway wind power plant;

FIG. 4 is a schematic view of a highway wind power system;

fig. 5 is a partial block diagram of a current processing circuit.

1 flabellum, 2 inside pivots, 3 cavitys, 4 outside pivots, 5 casings, 51 logical grooves, 6 greenbelts, 7 power generation facility, 8 warning screens, 9 current processing circuit.

Detailed Description

As shown in fig. 1-2, the power generation device 7 of the present invention includes a plurality of blades 1, an external shaft 4, an internal shaft 2, and a housing 5. Casing 5 is cylindric metal cylinder, and the central axis department of casing installs the pivot, the pivot includes inside pivot 2 and outside pivot 4, outside pivot 4 cup joints in the outside of inside pivot 2, and it is rotatory to drive inside pivot 2 through the rotation of outside pivot 4, thereby the pivot fixed connection of the rotor of inside pivot and big motor drives the rotor rotation of generator through the rotation of inside pivot 2 to produce the electric current by the generator. Install a plurality of flabellums on the outside pivot 4, flabellum 1 is the arc blade of vertical direction, and wind acts on flabellum 1 to drive the motion of flabellum 1, the motion of flabellum 1 drives outside pivot and rotates. And a cavity 3 is formed between the external rotating shaft 4 and the outer wall of the shell, and the fan blades are arranged in the cavity 3. The outer wall of the cavity 3 is provided with a plurality of through grooves in the vertical direction, and the through grooves are suitable for allowing wind generated when an automobile runs on a highway and passes through the power generation device to enter, so that the fan blades 4 are driven to move.

As shown in fig. 3, the wind power generation devices 7 are installed in the middle green belt of the expressway or at both sides of the expressway. Warning screens 8 are arranged at the middle green belt of the expressway or at two sides of the road. The wind power generation devices 7 are located in a range of one kilometer in front of and behind the warning screen 8, and the electric power generated by the wind power generation devices 7 is transmitted to the warning board 8, so that working electric power is provided for display of the warning board 8.

The shell 5 of the wind power generation device 7 is fixedly arranged on the ground, and the wind power generated by the passing automobile drives the fan blades to rotate. In order to increase the wind speed generated when the automobile passes by and to ensure that the fan blades can rotate, an air guide device may be mounted on the outer wall of the housing 5.

Next, the current generated by the wind power generation device is processed and then provided to the warning board. As shown in fig. 4, the utility model discloses a wind power supply system includes current processing circuit 9, and this current processing circuit 9 is used for handling the electric current that wind power generation set produced and offers the warning sign to provide stable operating current for the warning sign. The circuit processing circuit 9 includes a rectifier, a filter, a first battery, a second battery, and an output control circuit. The rectifier is used for converting alternating current generated by the wind power generation device into unidirectional pulse electricity with the direction unchanged and the size changed, and the unidirectional pulse electricity is charged to the storage battery after passing through the filter. The storage battery comprises a first storage battery and a second storage battery, wherein the first storage battery is used as a main storage battery, and the second storage battery is used as an auxiliary storage battery. The current firstly charges the first storage battery, and then charges the second storage battery if the first storage battery is fully charged, wherein the second storage battery can be a single storage battery, or a storage battery pack consisting of a plurality of storage batteries connected in parallel or in series. Since the traffic flow rate is different in each time period on the expressway, for example, in the off-peak period, the traffic flow rate is low, and the current generated by the wind power generation device is low, the first storage battery is enough to store the generated electric quantity; during peak periods, the generated current is large, the first storage battery is easily fully charged, and the second storage battery needs to be started for charging. And the economical effects are different between using one large-capacity secondary battery and using the same capacity of the battery pack consisting of the first and second secondary batteries. If only use a large capacity battery, this battery is in operating condition all the time, then the life of this battery will shorten greatly, and adopt the group battery that first battery and second battery are constituteed for the second battery just opens the charging when needing, consequently, the life extension of second battery, only need change a small capacity first battery can, obviously more economical than changing a large capacity battery. The output control circuit is used for outputting the current in the first storage battery and the second storage battery so as to supply power to the warning board.

As shown in fig. 5, the current filtered by the filter circuit is input to the node a and then input to a first pole of a first battery C1, a second pole of which is connected to the voltage V1; the second battery has a second pole connected to a voltage V2, a first pole connected to the second pole of the second switching transistor M2, and a first pole connected to the node a of the second switching transistor M2. The output control circuit comprises a first switching transistor M1 having a first pole connected to node a of the first switching transistor M1 and a second pole connected to the load. The control electrode of the second switching transistor M2 is connected to the second control signal G2, and when it is detected that the second battery is fully charged, the controller generates the second control signal G2 to turn on the second switching transistor M2, so that the second battery is connected to the node a, thereby charging the second battery. After the preset charging time is over, the controller generates a first control signal G1, so as to turn on the first switching transistor M1, and the first storage battery and the second storage battery output currents to the outside.

It should be noted that the present invention mainly introduces a wind power supply system. The power supply source of the warning board is not limited to wind power supply, and because the warning board still needs to work when the storage battery is charged, other power supplies need to be provided at the moment, and the other power supplies can be the storage battery which is fully charged in advance, so that the normal work of the warning board is ensured when the wind power is charged, and detailed description is omitted.

Claims (2)

1. The utility model provides a highway warning sign wind power supply system, includes wind power generation set and current processing circuit, its characterized in that: the current processing circuit includes: the device comprises a rectifier, a filter, a first storage battery, a second storage battery, an output control circuit and a controller; the output end of the wind power generation device is electrically connected with the input end of a rectifier, the output end of the rectifier is connected with a node (A) after passing through a filter, the first pole of a first storage battery is connected with the node (A), and the second pole of the first storage battery is connected with a first voltage (V1); a second pole of the second battery is connected to the second voltage (V2), a first pole of the second battery is connected to a second pole of the second switching transistor (M2), and a first pole of the second switching transistor (M2) is connected to the node (a); the output control circuit comprises a first switching transistor (M1), a first pole of the first switching transistor (M1) being connected to a node (a), a second pole thereof being connected to a load; the control electrode of the first switch transistor is connected with a first control signal end, and the control electrode of the second switch transistor is connected with a second control signal end; the controller is configured to generate a first control signal for controlling the first switching transistor (M1) and a second control signal for controlling the second switching transistor (M2).

2. Wind powered system according to claim 1, characterized in that: the wind power generation device comprises a shell (5), an internal rotating shaft (2), an external rotating shaft (4) and fan blades (1); the shell (5) is cylindrical, and the inner rotating shaft (2) is rotatably fixed at the central shaft of the shell (5); the external rotating shaft (4) is sleeved outside the internal rotating shaft (2); the external rotating shaft (4) and the internal rotating shaft (2) can rotate together; the internal rotating shaft (2) is fixedly connected with a rotor of the generator; a plurality of fan blades (1) are mounted on the outer surface of the external rotating shaft, and the fan blades (1) are arc-shaped blades; seted up a plurality of logical grooves on the outer wall of casing (5), lead to the groove edge the vertical direction of outer wall of casing (5) extends, it is used for the air inlet to lead to the groove, and wind that gets into in casing (5) through the groove promotes flabellum (1) and rotates, and the rotation of flabellum (1) drives outside pivot (4) and rotates, and then drives inside pivot (2) and rotate.

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