CN110474413A - One kind building the energy storage of highway solar energy composite and conversion equipment - Google Patents

Abstract

The invention relates to the technical field of solar energy storage and conversion, and discloses a comprehensive solar energy storage and conversion device for roads under construction, which includes a chassis, a mounting board, a boosting amplifier module, a heat sink, a solar controller, a supercapacitor controller, a tilting Shell plates, moving wheels, box shells, solar panels, batteries, relays, contactors and supercapacitors, four universal wheels are symmetrically arranged at the bottom of the chassis, the mounting plate is horizontally fixed in the center of the chassis, and the front side of the chassis is welded with a tilt Shell plate, the box shell is installed on the top of the chassis and the inclined shell plate; the boost amplifier module is fixed on the top of the bottom plate inside the chassis, the solar controller is fixed on the top of the heat sink, and the heat sink is fixed on the top of the mounting plate; the super capacitor controller is fixed on the top of the support column fixed on the top of the mounting plate. In the invention, the hybrid energy storage system composed of batteries and supercapacitors uses solar panels to supply power to electric equipment in roads under construction.

Description

A comprehensive solar energy storage and conversion device for highways under construction

technical field

The invention relates to the technical field of solar energy storage and conversion, in particular to a comprehensive solar energy storage and conversion device for roads under construction.

Background technique

Energy consumption during road construction is a problem that cannot be ignored, mainly including power consumption of construction equipment during construction, daily energy consumption in construction areas, auxiliary equipment (monitoring, auxiliary signs, warning signs, etc.) on roads under construction, etc. energy consumption. At present, the electrical energy of the equipment on the roads under construction is mainly supplied by the grid or self-sustained (diesel, gasoline) generators, but some newly-built roads are located in areas with relatively remote geographical environments or incomplete infrastructure. The laying investment is large, and the expected power supply target is often not reached, resulting in insufficient power supply. When the power supply fails, line maintenance is also difficult; Large, poor generator output power quality and many other problems.

Solar photovoltaic power generation uses solar light to convert light energy into electrical energy. According to the characteristics of electrical equipment, it is decided whether to convert solar photovoltaic power generation. It has the advantages of simple installation, cleanliness, and low cost. Usually, after solar photovoltaic power generation, direct current (DC) is generated. Through reasonable series and parallel connection of solar photovoltaic cells, when the voltage and power conditions of solar photovoltaic cell group power generation are met, it can be used for small DC power equipment such as common roads under construction. Small devices such as traffic warning signs, traffic guidance lights, and small surveillance cameras are used for power supply; for AC power equipment, it is necessary to convert the generated energy to convert direct current (DC) into alternating current (AC), when the voltage and When the power meets the requirements, the AC electrical appliances can work.

Since there is strong and abundant light only on sunny days, in rainy weather and at night, solar photovoltaic cells will not be able to generate electricity, so they cannot supply power to the outside, so they will not be able to supply power to electrical equipment. During the day, the amount of solar photovoltaic power generation is sufficient or there is a surplus. If the surplus energy is stored, it can be used by the load equipment in rainy days or at night. As a commonly used energy storage device, the battery has many advantages such as high energy density, simple maintenance, and low failure rate. limit. As a special new type of energy storage device, supercapacitors have many advantages, such as high dielectric constant, high withstand voltage, strong storage capacity, and long service life, compared with traditional capacitors. Therefore, supercapacitors can be used as auxiliary power sources to participate in energy storage. process.

Contents of the invention

In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a comprehensive solar energy storage and conversion device for roads under construction, which uses solar panels to supply power for power equipment in roads under construction, and combines storage batteries and supercapacitors to form a hybrid energy storage device. The energy system can significantly improve the service life and charge and discharge performance of the device.

The present invention is realized by the following technical solutions: a comprehensive solar energy storage and conversion device for highways under construction, including a chassis, a mounting plate, a boosting amplifier module, a heat sink, a solar controller, a supercapacitor controller, an inclined shell plate, and a moving wheel , box shell, solar panel, storage battery, relay, contactor and supercapacitor, the four universal wheels are arranged symmetrically at the bottom of the chassis, and each universal wheel is provided with a foot-operated brake pad, and the mounting plate It is horizontally fixed in the center of the chassis, and the front side of the chassis is welded with an inclined shell plate, and the box shell is installed on the top of the chassis and the inclined shell plate; The device is fixed on the upper end of the heat sink, and the heat sink is fixed on the upper end of the mounting plate; the supercapacitor controller is fixed on the upper end of the mounting plate through a support column, and the supercapacitor controller is connected to the solar controller through a wire, and the solar controller The controller and the battery are connected by wires, the output end of the supercapacitor controller is connected by wires to the relay, the output end of the relay is connected to the contactor by wires, and the output end of the contactor is connected to the supercapacitor by wires , the supercapacitor is connected to the load through a wire; the voltage output terminal of the solar panel is connected to the input terminal of the solar controller, and the output terminal of the solar controller is connected to the input terminal of the boosting amplifier module.

Further, the step-up amplifying module includes an inverter, a power amplifier and two boosters, the output terminal of the solar controller is connected to the input terminal of the inverter through wires, and the The output terminal and the input terminal of the booster are connected by a wire, the two boosters are connected in parallel, the output terminals of the two boosters are connected by a wire to the input end of the power amplifier, and the output of the power amplifier The terminal and the load are connected by wires.

Further, the cover is arranged on the top of the chassis and the inclined shell, and connected by screws.

Further, the output voltage of the solar panel is DC 36~48v, the output voltage of the inverter is AC 24v, the output of the booster is AC 220v, and the output power of the power amplifier is 6kW.

Compared with the prior art, the beneficial effect of the present invention lies in that: the solar energy comprehensive energy storage and conversion device of the road under construction of the present invention uses solar panels to generate electric energy, uses an inverter to invert the photovoltaic input voltage into AC power, and then passes The booster is boosted to 220V, and then the power is operationally amplified by the power amplifier, so that the output power of the booster is 3kW, and the two sets of boosters are connected in parallel to achieve an output power of 6kW to supply power to the load; in fine weather When the light is strong, part of the electric energy is stored in the supercapacitor. When the sunlight is weak, the supercapacitor controller adjusts and controls the on-off of the contactor through the relay, controls the supercapacitor to supply power to the load, and forms a hybrid energy storage of the battery and the supercapacitor. The system uses solar panels to serve as construction equipment, construction areas, and auxiliary equipment (monitoring, auxiliary signs, warning signs, etc.) Provide electric energy, thereby reducing the cost of long-distance wiring, improving the reliability of power supply, and the service life and charging and discharging performance of the device can be significantly improved through the mixed use of batteries and supercapacitors.

Description of drawings

Fig. 1 is the structural representation of the present invention after removing box shell;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is a structural block diagram of the circuit system in the present invention.

In the figure: 1. Chassis; 2. Mounting plate; 3. Boost amplifier module; 4. Heat sink; 5. Solar controller; 6. Supercapacitor controller; 12. Solar panel; 13. Battery; 14. Relay; 16. Contactor; 17. Supercapacitor; 20. Load; 31. Inverter; 32. Booster; 33. Power amplifier.

Detailed ways

Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

Example 1

As shown in Figures 1 to 3, a solar energy comprehensive energy storage and conversion device for highways under construction according to the present invention includes a chassis 1, a mounting plate 2, a boost amplifier module 3, a heat sink 4, a solar controller 5, and a supercapacitor control device 6, inclined shell plate 7, moving wheel 10, box shell 11, solar panel 12, battery 13, relay 14, contactor 16 and supercapacitor 17, four universal wheels 10 are symmetrically arranged at the bottom of the chassis 1, each The universal wheels 10 are all equipped with foot-operated brake pads, the mounting plate 2 is horizontally fixed in the center of the cabinet 1, and the front side of the cabinet 1 is welded with an inclined shell plate 7, which is used to set the display screen assembly. The shell 11 is in the shape of an inverted U, and is arranged on the top of the chassis 1 and the inclined shell plate 7, and is connected by screws.

The boost amplifier module 3 is fixed on the top of the internal bottom plate of the chassis 1, and the solar controller 5 is fixed on the top of the heat sink 4. The solar controller 5 uses the MC908MR32CFUE controller, which is 8 bits and 64 pins (QFP package mode), and the ROM capacity is 32KB. The RAM capacity is 6M. The main control chip is used to control the output power resources and charging control function of the solar panel 12, and to control the work of the storage battery 13 and the super capacitor 17 to complete the sequential logic operation of the charging control. The heat sink 4 is fixed on the The upper end of the mounting plate 2; the supercapacitor controller 6 is fixed on the upper end of the mounting plate 2 by a support column, the supercapacitor controller 6 and the solar controller 5 are connected by wires, and the solar controller 5 and the storage battery 13 are connected by wires, and the storage battery 13 is used The lead-acid battery pack is connected in parallel with a group of 80AH48V. The total capacity of the components is 60~80kWh. The output terminal of the supercapacitor controller 6 is connected to the relay 14 through a wire. The communication interface communicates with the solar controller 5. When the solar controller 5 detects the high-frequency power change of the load 20, the calculated signal is fed back to the supercapacitor controller 6. After the calculation, the relay 14 of the HG4185 model is used to adjust the control The on-off of the contactor 16 controls the supercapacitor 17 to charge or discharge the bus bar. The output terminal of the relay 14 is connected to the contactor 16 through a wire, the output terminal of the contactor 16 is connected to the supercapacitor 17 through a wire, and the supercapacitor 17 is connected to the load 20 They are connected by wires. The supercapacitor 17 selects the S48V1-K6 supercapacitor module of Aowei Technology. It performs series voltage equalization processing on a single supercapacitor inside to improve the efficiency and safety of the supercapacitor. The working voltage is 33~48V. The effective storage energy in the voltage range is 1kWh, the standard discharge current is 150A, the maximum discharge current is 200A, and the cycle life can reach 30,000 times, which can significantly increase the instantaneous charge and discharge current and prolong the service life of the equipment; the voltage of the solar panel 12 The output end is connected with the input end of the solar controller 5, and the output end of the solar controller 5 is connected with the input end of the step-up amplifier module 3, and 21 is installed there by the solar support, and the total power of the components of the solar panel 12 is 8kW , using a prefabricated detachable structure for installation, obliquely installed on a detachable metal bracket, the solar panel 12 uses monocrystalline silicon solar cells, which have high photoelectric conversion efficiency and good impact resistance, and double-layer EVA materials are used between the layers And TPT composite material, good air tightness, good moisture resistance, good UV resistance, not easy to aging, junction box aging resistance, waterproof, good moisture resistance.

Boost amplifying module 3 comprises inverter 31, power amplifier 33 and two voltage boosters 32, the output end of solar controller 5 and the input end of inverter 31 are connected by wire, the output end of inverter 31 Connect with the input end of booster 32 by wire, parallel connection between two boosters 32, connect by wire between the output end of two booster 32 and the input end of power amplifier 33, the power amplifier 33 The output terminal and the load 20 are connected by wires, wherein the output voltage of the solar panel 12 is DC36-48v, the output voltage of the inverter 31 is AC 24v, the output of the booster 32 is AC220v, and the output of the power amplifier 33 The power is 6kW. When the solar panel 12 outputs voltage, the output is a DC voltage, which is controlled by the solar controller 5, and the photovoltaic input voltage is converted to AC 24v by the inverter 31, and then boosted to 220V by the booster 32, Then, the power is operationally amplified by the power amplifier 33 to make the output power of the booster 3kW, and the two sets of boosters 32 are connected in parallel to realize an output power of 6kW.

The working principle of the solar energy comprehensive energy storage and conversion device for the road under construction of the present invention is: use the solar panel 12 to generate electric energy, the solar panel 12 outputs a DC voltage through the solar controller 5, and uses the inverter 31 to invert the photovoltaic input voltage to AC 24v, then boosted to 220V by the booster 32, and then the power is operationally amplified by the power amplifier 33, so that the output power of the booster is 3kW, and two groups of boosters 32 are connected in parallel to achieve an output power of 6kW , to supply power to the load 20; when the weather is sunny and the light is strong, the supercapacitor controller 6 communicates with the solar controller 5 through the 485 communication interface, and stores part of the electric energy in the supercapacitor 17; when the sunlight is weak, the solar controller 5. When the high-frequency power change of the load 20 is detected, the calculated signal is fed back to the supercapacitor controller 6. After the calculation, the relay 14 of the HG4185 type is used to adjust and control the on-off of the contactor 16, and control the supercapacitor 17 to discharge the load. At the same time, batteries and supercapacitors are combined to form a hybrid energy storage system, and solar panels are used as construction equipment, construction areas, and auxiliary equipment on roads under construction in areas where the geographical environment is relatively remote or the infrastructure is incomplete. Monitoring, auxiliary signs, warning signs, etc.) etc. to provide power.

Those skilled in the art can make various other corresponding changes and deformations according to the above-described technical solutions and concepts, and all these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims (4)

1. one kind building the energy storage of highway solar energy composite and conversion equipment, it is characterised in that: including cabinet (1), mounting plate (2), It boosts amplification module (3), cooling fin (4), solar controller (5), super capacitor controller (6), inclination coverboard (7), movement Take turns (10), box shell (11), solar panel (12), battery (13), relay (14), contactor (16) and super capacitor (17), four universal wheels (10) are symmetricly set on cabinet (1) bottom, and pedal brake is provided on each universal wheel (10) Vehicle piece, the mounting plate (2) are horizontally fixed on cabinet (1) center of inside, are welded with inclination coverboard on front side of the cabinet (1) (7), the box shell (11) is mounted on cabinet (1) and tilts the top of coverboard (7)；The boosting amplification module (3) is fixed on machine Case (1) internal backplane upper end, the solar controller (5) are fixed on cooling fin (4) upper end, and the cooling fin (4) is fixed on Mounting plate (2) upper end；The super capacitor controller (6) is fixed on mounting plate (2) upper end, the super capacitor by support column Controller (6) is connect with solar controller (5) by conducting wire, is led between the solar controller (5) and battery (13) Conducting wire connection is crossed, the output end of the super capacitor controller (6) is connect with relay (14) by conducting wire, the relay (14) output end is connect with contactor (16) by conducting wire, and output end and the super capacitor (17) of the contactor (16) pass through Conducting wire connection, is connect between the super capacitor (17) and load (20) by conducting wire；The electricity of the solar panel (12) Pressure output end is connected with the input terminal of solar controller (5), and the output end of the solar controller (5) and boosting are amplified The input terminal of module (3) connects.

2. according to claim 1 building the energy storage of highway solar energy composite and conversion equipment, it is characterised in that: the boosting Amplification module (3) includes inverter (31), power amplifier (33) and two boosters (32), the solar controller (5) Output end and the input terminal of inverter (31) between connect by conducting wire, the output end and booster of the inverter (31) (32) connected between input terminal by conducting wire, it is in parallel between two boosters (32), the output end of two boosters (32) with Connected between the input terminal of power amplifier (33) by conducting wire, the output end of the power amplifier (33) and load (20) it Between pass through conducting wire connect.

3. according to claim 2 building the energy storage of highway solar energy composite and conversion equipment, it is characterised in that: the box shell (11) to be inverted U-shaped, lid closes setting at the top of cabinet (1) and inclination coverboard (7), is attached by screw.

4. according to claim 2 building the energy storage of highway solar energy composite and conversion equipment, it is characterised in that: the sun The output voltage of energy solar panel (12) is 36 ~ 48v of DC, and the output voltage of the inverter (31) is AC 24v, the booster (32) output is AC 220v, and the output power of the power amplifier (33) is 6kW.