CN201844352U - Streetlight system with solar energy and wind energy off-grid centralized power supply - Google Patents

Abstract

The utility model provides a solar wind energy off-grid centralized power supply street lamp system, comprising: a solar wind energy power generation component, which is arranged at a remote location and converts solar energy and wind energy into DC electric energy; off-grid power supply equipment, which is arranged at the remote location The location is connected to the solar wind power generation components, the DC power is stored and converted into AC power, and the street lamp group is remotely connected to provide AC power supply; the street lamp group uses the AC power supply to provide lighting. The power generation and power supply equipment components of the utility model are remotely and centrally installed to provide power supply for all street lamps in the system; and complement the public power grid to improve the efficiency of solar and wind power generation, facilitate maintenance of equipment and batteries, and save investment in transformation.

Description

A solar wind energy off-grid centralized power supply street lamp system

technical field

The utility model relates to a street lamp system, in particular to a street lamp system for remote power supply by solar wind energy.

Background technique

At present, the street lamp system with solar wind energy and complementary with mains electricity adopts an independent system of a single light pole, that is, each street lamp is an independent solar wind energy power generation, energy storage and lighting system. Each street lamp is composed of street lamps, solar cell components, wind generator components, solar and wind energy controllers, lead-acid batteries, AC/DC power supplies, automatic switchers powered by mains power and batteries. Among them, solar battery components and wind power generator components are installed on the top of the light pole, and lead-acid batteries are buried underground.

The above-mentioned street light system in the prior art has the following disadvantages: in the street light renovation project, in order to meet the wind resistance safety, the light pole foundation and the light pole need to be replaced, and the construction cost is high; the service life of the lead-acid battery is less than 5 years, and it is buried in the Underground, inconvenient maintenance and potential pollution; the electronic control device of the system includes solar and wind energy controllers, AC/DC power supply, automatic switcher for mains power and battery power supply, many accessories, complicated control, easy to break down, and high maintenance cost ; The solar wind energy cannot give full play to its power generation performance at the installation site due to the blocking of road trees and roadside houses.

Utility model content

Aiming at the above-mentioned problems in the prior art, the utility model provides a solar wind energy off-grid centralized power supply street lamp system, which uses solar energy and wind energy to generate electricity, store energy and supply equipment in a remote location, and through an independent The off-grid power supply equipment on the public grid supplies power to street lamps, which effectively solves the above problems.

The solar wind energy off-grid centralized power supply street lamp system described in the utility model includes: a solar wind energy power generation component, which is arranged at a remote location and converts solar energy and wind energy into DC electric energy; off-grid power supply equipment, which is arranged at the remote location, Connect the solar wind power generation components, store the DC power and convert it into AC power, and remotely connect the street lamp group to provide AC power supply; the street lamp group uses the AC power supply to provide lighting.

Preferably, the solar wind power generation components include solar cell components and wind power components;

The off-grid power supply equipment includes: a controller for storing the DC power in a storage battery; a battery pack for storing the DC power and providing a DC voltage; an inverter for converting the DC voltage into alternating current. Further preferably, the off-grid power supply equipment further includes: an automatic switcher, which is connected to the inverter and the public grid and automatically switches to the public grid for power supply when the energy storage of the battery pack is insufficient;

Preferably, the solar wind energy off-grid centralized power supply street lamp system further includes a remote equipment room, and the off-grid power supply equipment is arranged in the remote equipment room.

Preferably, the street lamp group includes at least one street lamp, which is connected to the off-grid power supply equipment with an AC bus to obtain AC power supply.

The street lamp system of the present utility model is equipped with remote centralized installation of solar cell components, wind power generation components, batteries, controllers, inverters and other equipment, which is equivalent to building an off-grid power station to provide power supply for all street lamps in the system, and Complementary to the public grid. Due to the realization of remote power supply, the solar and wind power generation components can be installed in unshaded places to improve the efficiency of solar and wind power generation; the batteries, controllers and inverters are centrally installed in the equipment room to increase the service life and reduce the failure rate. Easy maintenance; off-grid AC power supply is adopted. In the energy-saving and emission-reduction renovation of street lamps, the power supply network is the same, and the load on the lamp poles does not increase. Therefore, there is no need to replace the power cables of the street lamps, the lamp poles and the foundation of the lamp poles, and save investment in street lamp renovation. .

Description of drawings

Fig. 1 is a structural schematic diagram of a solar wind energy off-grid centralized power supply street lamp system according to an embodiment of the present utility model.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in combination with specific implementation methods and accompanying drawings.

Fig. 1 is a structural schematic diagram of a solar wind energy off-grid centralized power supply street lamp system according to an embodiment of the present utility model. In Fig. 1, the solar wind power generation assembly 1 comprises a wind energy assembly 10 and a solar battery assembly 11, and utilizes wind energy and solar energy to generate direct current energy; Places shaded by trees and houses, open spaces, tops of buildings, etc. An off-grid power supply device 2 is also set at the remote location, which is used to store the DC power, convert the DC power into the same AC power as the public power grid, and use an off-grid power supply line independent of the public power grid to supply the street lamp group 3 powered by. As shown in the figure, the off-grid power supply equipment 2 specifically includes: a controller 21, a storage battery pack 22, an inverter 23, and an automatic switcher 24. The above components can be installed in a remote equipment room (not shown) close to the solar wind power generation assembly 1 It is equivalent to forming an off-grid power station. The DC power converted from wind energy and solar energy is stored in the storage battery pack 22 through the controller 21, and the inverter 23 inverts the DC voltage of the storage battery pack 22 into the same AC voltage as the public power grid. The inverter 23 judges whether the battery pack 22 is over-discharged, and if it is over-discharged, it will stop the inverter to output the alternating current. The automatic switcher 24 selects the AC input for the street lamp group 3 between the AC power of the public grid 4 and the AC power output by the inverter 23 . The automatic switcher 24 judges whether the inverter 23 outputs AC power, if there is an output, the AC power supply of the street lamp group 3 is provided by the output of the electric energy stored in the inverter 23, that is, the battery pack 22, and the AC power output by the inverter 23 is preferentially used; If the inverter 23 has no output, it indicates that the battery pack 22 stores insufficient electric energy, and the automatic switcher 24 switches the AC power supply of the street lamp group 3 to the public power grid 4, and the public power grid 4 provides the required electric energy of the street lamp group 3 to realize the solar wind energy of the street lamp system Mains complementary function. At least one street lamp street lamp 31, street lamp 32, street lamp 33 to street lamp 3x in the street lamp group 3 are connected to the AC bus 5 output by the automatic switcher 24, and electric energy is obtained from the AC bus 5 to light the lamps to realize lighting.

The street light system of the utility model improves the efficiency of solar and wind power generation by remote installation, and reduces the maintenance cost by concentrating the equipment in the equipment room; adopts the off-grid AC power supply to save the cost of street light transformation; it is convenient, efficient, safe and durable, energy-saving and environmentally friendly, and has Conducive to the establishment of a "low-carbon" city model.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the utility model specification and accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (6)

1. A solar wind energy off-grid centralized power supply street lamp system, characterized in that it comprises: a solar wind energy generating assembly, which is arranged at a remote location and converts solar energy and wind energy into DC electric energy; off-grid power supply equipment, which is arranged on the In a remote location, connect the solar wind power generation components, store the DC power and convert it into AC power, and remotely connect the street lamp group to provide AC power supply; the street lamp group uses the AC power supply to provide lighting. 2. The off-grid centralized street lamp system powered by solar and wind energy according to claim 1, wherein the solar and wind energy generating components include solar battery components and wind energy components. 3. The solar wind energy off-grid centralized power supply street lamp system according to claim 1, characterized in that, the off-grid power supply equipment includes: a controller for storing the DC electric energy in a battery; a battery pack for storing The above-mentioned DC power and provide DC voltage; the inverter converts the DC voltage into the same AC power as the public grid. 4. The solar wind energy off-grid centralized power supply street lamp system according to claim 3, characterized in that, the off-grid power supply equipment also includes: an automatic switcher, which is connected to the inverter and the public power grid and connected to the battery pack When the energy storage is insufficient, it will automatically switch to the public grid for power supply. 5. The solar wind energy off-grid centralized power supply street lamp system according to any one of claims 1 to 4, characterized in that: the solar wind energy off-grid centralized power supply street lamp system also includes a remote equipment room, the The off-grid power supply equipment is set in the remote equipment room. 6. The solar wind energy off-grid centralized power supply street lamp system according to any one of claims 1 to 4, characterized in that: the street lamp group includes at least one street lamp, and the off-grid power supply equipment is connected with an AC bus bar Get the AC power supply.

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