KR101764247B1 - Car renewable energy power generating apparatus and its control method - Google Patents

Abstract

The present invention relates to a new renewable energy generation apparatus for a vehicle and a control method thereof and, more particularly, to an apparatus and a method for stably charging a large-capacity solar battery through a solar power generation apparatus and allowing a person to use household and vehicular electric appliances using the solar battery and commercial electricity. The new renewable energy generation apparatus for the vehicle comprises: a solar panel (10) installed in a cargo box (1) of a freight vehicle; a solar controller 20 measuring a voltage and a current of the solar panel (10), interrupting electricity using a supply breaker (21) if the voltage and current are not greater than a charging start value, and outputting the electricity if the voltage and current are not less than the charging start value; a large-capacity solar battery (30) connected to the solar controller (20) to be charged; a vehicular inverter (40) connected to the solar battery (30) to convert and supply a voltage so that the vehicular and household electric appliances can be used; a grid interconnection unit (65) connected to general and household outlets to supply the electricity in the solar battery (30) reversely; and an energy control unit (70) controlling output of the electricity to the vehicular and household electric appliances and operation.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of controlling a renewable energy generation apparatus,

The present invention relates to a new and renewable energy generation device for a vehicle and a control method thereof. More particularly, the present invention relates to an electric power generation device for a vehicle, It is possible to use the vehicle and the general electric appliance, and to resell the charging electric appliance, thereby protecting the natural environment and increasing the user's interest.

Generally, a battery mounted on a vehicle mainly plays a role of generating a spark by supplying electric power to an ignition plug. However, when electricity is supplied to all parts where electric power is used, that is, air conditioner operation, headlight, And is operated in such a manner that electric power is charged in the reverse direction while traveling.

There are two power sources for operating each electronic device of the vehicle: a capacitor (hereinafter referred to as a battery) and a charging device (hereinafter referred to as an alternator). When the engine is driven, Supplies electric power to each electric device, but when the engine is stopped or starts, electric power can not be obtained from the generator, so that the necessary power source is dependent on the battery.

That is, the main battery of the vehicle is a device for continuously supplying electric power to use the electronic device of the vehicle by continuously charging the vehicle while the vehicle is running, and the battery is charged through the generator, Which is a cause of deteriorating energy efficiency.

Herein, refrigerated and refrigerated trucks (hereinafter referred to as " trucks ") are cargo transportation vehicles provided with a loading box for safely carrying and unloading loaded cargo irrespective of changes in external climatic conditions. If the battery power is to be used for a long time, the auxiliary battery must be additionally installed or the vehicle engine must be driven at all times, thereby wasting energy due to excessive fuel consumption and damaging the natural environment. There was a problem.

In addition, a variety of electric products for the convenience of the passengers and the work space are mounted and used in freight vehicles having various loading spaces such as a camper, a van, a trailer, and a cooking car for selling food. However, depending on the limited capacity of the battery, The engine had to be operated every time, and the refrigerator and the freezing device were stopped due to the power shortage of the battery, so that the stored food and articles were damaged or contaminated.

Accordingly, in the prior art, the efficiency of the battery is managed by only controlling the power generated by the generator. However, there is a problem in stabilization of the power supply as the use of the constant power source of the vehicle increases.

As a result, in addition to the main battery used for start-up, a supplementary battery is added or a photovoltaic power generation device is added. However, there are many cases where the supplementary battery is not fully charged due to a difference in charging voltage depending on the type of the battery , And the problem of stabilization of the power supply still remains.

[Patent Document 1]. Korean Patent No. 10-1407941. Vehicle solar cell system and control method thereof (registered on June 10, 2014)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to stably charge a large-capacity solar battery through a solar- The purpose of this is to enable the use of vehicle electric appliances by connecting household electricity to general households.

Another object of the present invention is to prevent generation of reverse current and uneven charging power while using solar power generation and external power supply, and to prevent battery efficiency from being lowered due to the season, thereby improving both electrical stability and safety .

It is still another object of the present invention to provide a solar battery capable of increasing the capacity of a solar battery by connecting a plurality of solar batteries in parallel as needed and by selling electricity stored in a solar battery, it is possible to increase the monetary gain and prevent damage to the natural environment have.

According to an aspect of the present invention,

A solar panel 10 fixedly mounted on a loading box 1 of a freight vehicle via a fixing bracket;

A solar controller 10 for measuring the voltage and current of the solar panel 10 and comparing the measured voltage and current with a set charging start value to cut off the power through the supply breaker 21 if the charging start value is less than the charging start value, )Wow;

A large-capacity solar battery 30 connected to the solar controller 20 and charged with electricity;

A vehicle inverter (40) connected to the solar battery (30) to convert and supply a voltage for use in a vehicle electrical product and a general electric product;

A protection circuit part (45) for shutting off the output of the solar controller (20) and the output to the inverter (40) according to whether the solar battery (30) is overcharged or overdischarged;

A distribution outlet 50 for separating the converted electricity from the vehicle inverter 40 into a vehicle and a general purpose and connecting the vehicle electrical product 51 to the vehicle and the general purpose electrical product 52 to the general purpose;

A general electrical outlet (53) for connecting the household electrical outlet (52) with the household electrical outlet (52);

The vehicle electric vehicle according to any one of claims 1 to 6, wherein the generator (61) is activated to charge the vehicle battery (62) in response to engine driving, to output electricity to the vehicle electric appliance (60);

A system interconnection unit 65 connected to the general use of the distribution receptacle 50 and an outlet for an external household to supply the charging electricity of the solar battery 30 in a reverse direction;

A charge cutoff value, a vehicle charge start value, and a charge cutoff value can be set according to the type of vehicle, and the sales value of the grid interconnecting unit 65 is displayed, and the solar battery 30 and the vehicle battery (70) for controlling the electrical output and operation of the vehicle electrical appliance and the general-purpose electrical appliance connected to the distribution socket (50) and the vehicle charger (60) if there is no overcharge or overdischarge of the vehicle electrical outlet (62) do.

In addition, step (S100) of detecting electricity generated through the solar panel through the solar controller 20 and comparing with the charge start value;

A step S200 of outputting electricity generated by the solar panel 10 to the solar battery 30 to charge the solar battery when the charging start value is higher than the charging start value;

(S300) of converting the voltage and power for vehicle and general use through a vehicle inverter (40) connected to the solar battery (30) and supplying the converted electricity to a distribution outlet (50);

(S400) controlling and shutting down the electrical output to the vehicle electrical appliance and the general electrical appliance connected to the distribution outlet (50)

The operation control step S400 includes a vehicle electrical control step S410 for controlling and shutting down the electrical output to the automotive electrical appliance through the vehicle generator 61 and the automotive battery 62 charged in the generator;

And a grid-connected control step (S420) of connecting the distribution socket (50) to a general household socket to control and shut off the electricity reverse supply output.

According to the present invention, it is possible to stably charge a large-capacity solar battery through a solar power generation device which is eco-friendly energy while preventing discharge of the vehicle battery, And general household electrical appliances can be used, thereby improving the convenience of the driver.

In addition, it is possible to output the electricity of the solar battery and the battery of the vehicle stably regardless of the season through the protection circuit, thereby enhancing the stability and safety, and preventing the vehicle discharge in advance.

In addition, it is possible to increase the capacity by connecting the solar panel and the solar battery in parallel according to the size of the vehicle and the size of the loading box, and also to increase the monetary gain and prevent damage to the natural environment by selling the charged solar battery.

1 is a front view of a vehicle to which a vehicle renewable energy generation device of the present invention is applied.
2 is a schematic view of a vehicle renewable energy generation device of the present invention.
3 is a block diagram of a control method of a vehicle renewable energy generation apparatus according to the present invention.
4 is a flowchart of a control method of a solar generator and a generator of a vehicle renewable energy generator according to the present invention.
5 is a flowchart of a control method of a general household electricity supply in a vehicle renewable energy generation apparatus according to the present invention.

The present invention relates to a new and renewable energy generation device for a vehicle and a control method thereof for supplying electricity generated by a photovoltaic power generation device, which is a new renewable energy, and electricity generated by a vehicle generator, It is possible to resell the charge electricity while being usable, thereby protecting the natural environment and increasing the profit of the user.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2, the present invention mainly generates electricity through the solar panel 10 to charge the solar battery 30 and the vehicle battery 62, and charges the solar battery 30 To enable the use of electric vehicles and general-purpose electric products, and to sell rechargeable electric power.

In addition, even when the engine is stopped due to parking of the vehicle, it is possible to use electric appliances for general use and household electric appliances by receiving general household electricity so as to prevent deterioration and damage of the cargo loaded on the refrigeration and refrigerated cargo hold.

Here, the automobile electrical appliance is an electric appliance using 12V or 24V, and the general electric appliance is a general household appliance of 220V. The general household appliance uses the air conditioner, the air purifier, the mobile phone charger, the navigation device, Boxes, AV devices, etc., and all electrical appliances that may be used after the vehicle engine has been shut down.

The solar panel 10 of the present invention is fixedly mounted on a loading box 1 of a freight vehicle through a fixing bracket to convert solar energy into electric energy to generate a voltage. The detailed description will be omitted.

The solar controller 20 measures the voltage and current of the solar panel 10 and compares the measured voltage and current with the inputted charging start value. If the voltage or current is below the predetermined value, the solar controller 20 cuts the voltage and current through the supply breaker 21, 30, and if it is not less than the above-described value, outputs electricity to charge the large capacity solar battery 30 connected to the solar controller 20.

The solar battery 30 includes at least one cell and is connected in series or in parallel in the case of a plurality of cells. The cell is a rechargeable and rechargeable secondary battery, such as a lithium ion battery, a lithium iron phosphate battery, a nickel- A nickel-hydrogen battery, a lithium polymer battery, or the like can be used.

Since the charging voltage and the current value are different depending on the types of these secondary batteries, the charging voltage and the current value of the solar battery 30 output to the vehicle inverter 40 can be set according to the setting of the protection circuit part 45 So that all the secondary batteries can be used as the solar battery 30.

In addition, when the solar battery 30 is formed of a plurality of cells to increase the capacity of the solar battery 30, the values of the chargeable voltage and current are different depending on whether the cells are connected in series or in parallel, The output of the solar battery 30 to the solar battery 30 is blocked by the protection circuit unit 45 according to whether the solar battery 30 is overcharged or not. do.

The vehicle inverter 40 is connected to the solar battery 30 and converts the direct current (DC) voltage to an alternating current (AC) voltage. The vehicle inverter 40 converts the voltage of the vehicle to be supplied to the electric appliance smoothly.

The vehicle inverter 40 according to the present invention is connected to the solar battery 30 and converts and supplies 12 to 24V and 220V of the vehicle electric appliance and the general electric appliance to operate. The output to the inverter 40 for the vehicle is blocked by the protection circuit unit 45 depending on whether overdischarge of the inverter 40 is generated.

At this time, it is also included in the present invention that the vehicle inverter 40 is supplied with general domestic electricity and converted and supplied to operate the 12 to 24V and 220V automotive electric appliances and general electric appliances.

As described above, the electricity converted from the vehicle inverter 40 into the vehicle and the general use is divided through the distribution receptacle 50, the vehicle electrical product 51 is connected to the vehicle, and the general purpose electrical product 52 is connected Therefore,

The distribution receptacle 50 also includes a general electrical outlet 52 connected to an external household outlet to supply general household electrical products to the general purpose electrical product 52 provided in the loading unit 1 and a general electrical outlet 53 to be supplied to the vehicle inverter 40 do.

At this time, the supply of the domestic general electricity through the general electrical outlet (53) causes the stop of the vehicle, that is, the engine is stopped, so that the operation of the generator (61) is stopped and the environmental pollution .

Here, the vehicle charging unit 60 charges the vehicle battery 62 by activating the generator 61 according to driving of the vehicle engine, outputs electricity for the operation of the vehicle electric appliance, So that the solar battery 30 is charged.

That is, since the configuration in which the generator 61 charges the vehicle battery 62 when the engine is started with the engine being turned on is already known, detailed description is omitted, When the value is higher than the preset charging voltage value, the solar battery 30 is charged. When the value is lower than the preset charging voltage value, the output is turned off to protect the vehicle battery 62.

The general 220V electrical appliance outlet of the distribution outlet 50 is connected to the household electrical outlet through the grid interconnection unit 65 so that the electricity charged in the solar battery 30 can be supplied in a reverse direction.

The grid interconnection unit 65 inverts general household electricity. For example, the grid interconnection unit 65 is connected to an electric line of the Korea Electric Power Corporation and sends electricity charged in the solar battery 30 to KEPCO. Thereby reducing the cost of using electricity or obtaining a gain. The reversing process is a well-known technique, so a detailed description will be omitted.

For this, the energy control unit 70 of the present invention can set the solar light charge start value, the charge cutoff value, the vehicle charge start value, and the charge cutoff value according to the type of the vehicle, And electrical output and operation of the vehicle electrical appliance and the general purpose electrical appliance connected to the distribution outlet 50, the general electrical outlet 53, and the vehicle charger 60 without overcharge or overdischarge of the vehicle electrical outlet 62 .

The energy control unit 70 includes a vehicle charging switch 71 for turning on or off the connection between the generator 61 and the vehicle battery 62 of the vehicle charging unit 60, The control unit 50 recognizes that the starting is on and charges the vehicle battery 62. When the charging voltage is lower than the charging start value, the battery 61 is disconnected from the photovoltaic battery 62 30 for controlling the charging of the vehicle battery 62 in order to charge the vehicle battery 62 first.

When the generator 61 of the vehicle charging unit 60 is stopped, the connection between the external household electrical outlet and the general electrical outlet 53 is turned on and off so that ordinary household electricity is supplied to the vehicle inverter 40 and the loading box 1 To be supplied to the general-purpose electric appliance (52).

The energy control unit 70 is further provided with a monitor 73 for displaying the state of the solar controller 20, the solar battery 30, the generator 61 and the vehicle battery 62, The energy control unit 70 including the monitor 73 is formed in the driver's seat and the cargo compartment of the vehicle.

The monitor 73 can display the remaining amount of the charged voltage charged in the solar battery 30 and the on-vehicle battery 62, and can turn on and off the plurality of LEDs for displaying the remaining amount and the remaining amount display.

It is also possible to display the numerical value and the cost sold by reversing the electricity charged in the solar battery 30 through the grid interconnection unit 65 to the monitor 73.

Therefore, the remaining amount of the solar battery 30 and the vehicle battery 62 can be checked through the monitor 73 of the energy control unit 70, and it becomes easy to recognize whether the battery needs to be charged or sold.

FIGS. 3 and 4 are views for explaining a method of controlling solar power generation and vehicle power generation in a vehicle renewable energy generation apparatus according to the present invention.

First, the charging start value comparison step S100 is to confirm whether the solar panel is in operation 101, to sense the output voltage of the produced electricity 102, and to compare the sensed voltage value with the charging start value 103).

The solar battery charging step S200 compares the sensed voltage value and the charging start value to determine whether the sensed voltage is higher than the charging start value and converts the sensed voltage into a charging voltage and a current of the solar battery In the embodiment of the present invention, five solar cells of 200 A are connected in parallel to have a maximum current of 1000A and a maximum capacity of 15000W.

At this time, if the sensed voltage is lower than the charging start value, the charging of the solar battery is interrupted (105).

If the battery is overcharged, the charging is interrupted (105), and whether or not the battery is overdischarged (107) is determined by continuous detection of the solar battery, do.

If there is no overcharge or over discharge as described above, the inverter connected to the photovoltaic battery 30, which is the distribution outlet supplying step (S300), converts the electricity to operate the 12-24V and 220V automotive electrical appliances and general purpose electrical appliances (109), which are each connected to a distribution outlet to drive (110) an automotive electrical appliance or drive (111) a general purpose electrical appliance.

In the operation control step S400, the distribution socket 50 connected to the general-purpose electric appliance can be sold by reversely supplying and discharging electricity. In the grid-connected control step S420, The grid connection is blocked.

That is, whether the solar battery is overdischarged (112) by the electrical output of the vehicle electrical appliance and the general electrical appliance connected to the distribution outlet (50) is also judged (112)

In the vehicle electrical control step S410, the vehicle battery is charged (120) by the operation of the vehicle generator, and it is determined (121) whether the vehicle battery is overcharged by continuous detection of the vehicle battery. If the vehicle battery is overcharged, Thereby charging the solar battery 104 (104).

If there is no overcharge of the automobile battery, electricity is supplied to operate the automobile electrical appliance (122), and it is determined (123) whether the automobile battery is overdischarged according to the continued electrical supply. (124).

In yet another embodiment of the present invention, a step S411 of turning on or off the connection switch of the vehicle generator 61 and the vehicle battery 62 in the vehicle electric control step S410, The control unit 50 detects the output voltage and charges the vehicle battery 62 if it is higher than the charging start value of the vehicle battery 62. If the charging voltage is lower than the charge starting value, It is also possible that the step S412 of connecting the vehicle battery 62 to control the switch to charge the vehicle battery 62 first may be included.

It is also possible to easily recognize the state of the energy generating device by including the state of the solar controller 20, the solar battery 30, the generator 61 and the vehicle battery 62, and the step of displaying the remaining charge amount (S210) And the like.

5 is a view for explaining a control method of general household electricity supply in a parked state where the engine of the vehicle is stopped in the vehicle renewable energy generation apparatus according to the present invention.

In the present invention, in order to supply general household electricity to a vehicle, it is necessary to connect ordinary household electricity in a state where the vehicle is stationary, that is, when the engine is stopped, thereby preventing environmental pollution caused by the engine operation. As shown in Fig.

To this end, the engine is stopped in the parked and stopped state 201, and the electric power is supplied to the electric power supply 202 by connecting the external household electric power outlet and the general electric power outlet 53, Accordingly, the vehicle electrical product 204 and the general-purpose electrical product 205 can be operated.

At this time, when the general household electricity is supplied, it is preferable that the electricity supply is stable so that the supply of electricity through the solar battery and the vehicle battery is interrupted. If the user desires to supply the solar battery and the vehicle battery It is also possible to charge the battery by turning the electrical connection on or off.

The general household electric power is supplied in the state where the vehicle is parked as described above, and the electric power of the solar battery 30 and the vehicle battery 62 can be prevented by operating the electric appliance for general use for the vehicle, So that it is possible to prevent deterioration of the cargo and enhance the convenience of use of the electric appliance.

Although it is also possible to charge the solar battery 30 and the vehicle battery 62 using the general domestic electricity, the function is not limited to the solar battery 30 and the solar battery 30, It is preferable that the vehicle battery 62 is used in accordance with the operation of the energy control unit 70 in a state in which there is a risk of discharge.

When the engine of the vehicle is operated (206) to move the parked vehicle, the energy control unit automatically disconnects the connection between the external household electrical outlet (53) and the general household electrical outlet (53) 207), and the electricity charged in the solar battery 30 and the vehicle battery 62 is supplied and used.

Although the preferred embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. .

10. Solar panel 20. Solar controller
30. Solar battery 40. Car inverter
50. Dispensing outlet 60. Vehicle charging section
62. Vehicle battery 70. Energy controller
S100. Charging start value comparison step
S200. Solar battery charging stage
S300. Distribution outlet stage
S400. Operation control step

Claims (6)

When the voltage and current produced by the solar panel 10 fixedly mounted on the loading box 1 of the freight vehicle through the fixing bracket are measured and compared with the charging start value set in the solar controller 20, (S100) for shutting off the charging start value (21) and outputting electricity when the charging start value is not less than the charging start value;
A solar battery charging step (S200) for charging the solar controller (20) and the solar battery (30) with electricity output from the solar battery (30);
A distribution outlet 50 for connecting the vehicle electrical appliance 51 and the general purpose electrical appliance 52 to the distribution outlet 50 by converting the voltage and power for vehicle use and the general use through the vehicle inverter 40 connected to the solar battery 30, Supply step S300;
(S400) for blocking the output of the solar controller (20) and the output from the protection circuit (45) toward the inverter (40) according to whether the solar battery (30) is overcharged or overdischarged while doing,
The operation control step S400 is a step of controlling the electric power output to the vehicle electrical appliance through the vehicle battery 62 that is charged by the operation of the generator 61 of the vehicle charger 60 in accordance with the engine drive of the vehicle An electric type control step (S410);
A grid connection type control step S420 of connecting the general household electrical appliance 52 of the distribution socket 50 and the outside household socket to the grid connection part 65 to invert and output the charging electricity of the solar battery 30 ≪ / RTI >
The grid-connected control step S420 is a step in which the household electric power is supplied to the vehicle battery 62 through the general electric outlet 53 included in the distribution outlet 50 in a state in which the operation of the vehicle generator 61 is stopped, And the electric power charged in the solar battery 30 is supplied in a reverse direction through the grid interconnection unit 65 connected to the general-purpose electric appliance 52,
The system further includes a step S210 of displaying on the monitor 73 the state of the solar controller 20, the solar battery 30, the generator 61 and the vehicle battery 62 and the remaining charge amount, 65 to the energy control unit 70 provided in the side of the loading box 1 and inside the vehicle cabin,
A solar charge start value, a charge cutoff value, a vehicle charge start value, and a charge cutoff value can be set through the monitor 73 of the energy storage unit 70 provided in the loading box 1 and the vehicle interior, And the vehicle electrical appliance 60 connected to the distribution receptacle 50 and the vehicle charger 60 when there is no overcharging or over-discharge of the solar battery 30 and the vehicle battery 62, And in the case of overcharging, the system interconnection unit 65 connected to the general-purpose electrical product 52 is cut off in the system-connected type control step S420, and in the over- The general electricity supplied through the outlet 53 is converted through the inverter 40 for the vehicle and is applied by the protection circuit 45 to charge the vehicle battery 62 with the highest priority,
In step S411 of turning on or off the connection between the generator and the battery included in the vehicle electrical control step S410 in the operating state of the vehicle generator 61 and the step S412 of controlling the switch, Is configured to operate the switch (71) in an ON state to fill the vehicle battery (62) with the highest charge and charge the solar battery (30).
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