CN201122571Y - Solar array lighting equipment - Google Patents

Abstract

A solar array lighting device for simulating space lighting environment, which is characterized by: ① using a tubular continuous xenon lamp made of high-quality doped quartz tube with high load intensity, high radiation efficiency and radiation close to the color temperature of the sun's surface as a light source, and arranging multiple tubular continuous xenon lamps into a lamp array; ② using a power supply module with AC three-phase balanced direct rectification and filtering, high-power semiconductor device chopping and pulse width modulation to power the tubular continuous xenon lamp. The utility model can achieve large-area, high-illuminance, uniform lighting with high load intensity, high radiation efficiency and radiation close to the color temperature of the sun's surface, and has high stability, high reliability and high safety.

Description

Solar array lighting equipment

technical field

The utility model relates to a light source, in particular to a solar battery array lighting device for simulating a space lighting environment. The equipment is mainly used to simulate the space lighting environment to detect the correctness of the output power of each charging array of the large-area solar cell array loaded on satellites and other aerospace devices and equipment, as well as the matching of the connection between the sub-arrays and the working output of the load. Correctness, etc., is one of the important ground detection methods in aerospace technology, and it can also be used to test civilian fields such as the power generation efficiency of ordinary solar cell arrays.

Background technique

The simulation technology of solar irradiation conditions is a technique for studying and simulating the characteristics of solar radiation, including solar spectral characteristics, total solar irradiance, solar collimation angle, irradiance non-uniformity and irradiance instability etc. The existing solar cell array lighting equipment at home and abroad mostly use short-arc xenon lamps, iodine-tungsten lamps and other light sources to simulate different solar irradiation conditions, but there are usually problems such as complex structure, high cost or low color temperature, and, For large-area irradiation, the radiation efficiency and solar constant of these light sources are limited to a certain extent, which cannot meet the test requirements.

Contents of the invention

The purpose of this utility model is to overcome the above-mentioned deficiencies in the prior art and solve the following problems:

1. Use a tubular continuous xenon lamp made of high-quality doped quartz tube as a light source to simulate the solar radiation conditions in outer space;

2. Multiple lamps are arranged in an array of lamps to form a large area, high illumination and uniform lighting conditions;

3. It adopts a portable high-power and high-stable drive power supply composed of no transformer, three-phase direct rectification and pulse width modulation.

4. Finally, a solar cell array illumination device is provided. The device can achieve high load strength, high radiation efficiency and large area, high illuminance and uniform illumination with radiation close to the color temperature of the sun's surface, and has high stability, high reliability and high safety.

The technical solution of the utility model is as follows:

A solar cell array illumination device, characterized by comprising:

① After fully considering and comparing the effects of tube size, inflation pressure, and electrode surface shape on the radiation efficiency and lighting power of the xenon lamp, the continuous xenon lamp made of thick and short tubes with better lighting effects was selected. A tubular continuous xenon lamp made of high-quality doped quartz tube with high load strength, high radiation efficiency and radiation close to the color temperature of the sun's surface is used as the light source, and multiple tubular continuous xenon lamps are arranged into a lamp array;

② The tubular continuous xenon lamp is powered by a power module with AC three-phase balanced direct rectification and filtering, high-power semiconductor device chopping and pulse width modulation.

The tubular continuous xenon lamp is made of high-quality doped quartz tube, the cathode is made of reserve high-temperature resistant material to make a spear-shaped tip, and the anode is made of refractory material into a shape with a heat isolation groove.

The light array is composed of light cars, the composition of the light car is: hanging a lamp frame on the column perpendicular to the chassis, arranging a plurality of lamps in the lamp frame, and installing a lamp in each lamp As for the tubular continuous xenon lamp, the power supply module is placed on the chassis, and the power supply module is electrically connected to each tubular continuous xenon lamp on the lamp car.

The lamp frames of the lamp car are arranged in two rows of N lamps from top to bottom, wherein N is a positive integer greater than or equal to 2, which is called the first type of lamp car.

The lamp frames of the lamp car are arranged in a row from top to bottom with a total of N+1 lamps, where N is a positive integer greater than or equal to 2, which is called the second type of lamp car.

The column is provided with a plurality of hook seats, and the lamp frame is hung on different hook seats to change the position of the lamp frame in the vertical direction.

The lamp has an adjusting screw rod inside the lamp frame to adjust the pitch angle and horizontal rotation angle of the lamp.

The light car chassis is equipped with rollers and supporting feet.

The power module is composed of a plurality of the following circuits:

The high-voltage end and low-voltage end of the DC output of the three-phase direct bridge rectifier circuit are respectively connected to the high-voltage end and low-voltage end of the first filter capacitor, and the low-voltage end of the first filter capacitor is connected to the collector of the IGBT, and the IGBT The emitter is connected to one end of the tubular continuous xenon lamp through the low-voltage terminal of the second filter capacitor, the high-voltage terminal of the first filter capacitor is connected to the other end of the tubular continuous xenon lamp through the high-voltage terminal of the second filter capacitor, and a series trigger circuit A Hall element is set on the connecting line between the second filter capacitor and the series trigger circuit, the output end of the Hall element is connected to the input end of the oscillator pulse width control circuit, and the oscillator pulse The second output end of the wide control circuit is connected to the second input end of the drive circuit, the first output end of the oscillator pulse width control circuit is connected to the first input end of the drive circuit through the control circuit, and the output end of the drive circuit connected to the base of the insulated gate double transistor.

Show through probation, the technical effect of the present utility model is as follows:

1. The high-power tubular continuous xenon lamp made of high-quality doped quartz tube replaces short-arc xenon lamp, iodine-tungsten lamp and other light sources as the sun-simulating light source. The light source has high load strength, high radiation efficiency and radiation close to the surface color temperature of the sun.

2. Using lamp array and calculated and simulated complementary lighting, the unevenness of lighting is about 10% on the illuminated surface with an area of tens of square meters.

3. Use the xenon lamp in the positive resistance area and the three-phase direct rectification method without transformer, then add pulse width modulation and filter to quickly adjust the method, so that the output instability of the 10,000-watt xenon lamp can reach ±1%.

In a word, the utility model can realize high load intensity, high radiation efficiency and large area, high illuminance and uniform illumination with radiation close to the surface color temperature of the sun, and has high stability, high reliability and high safety

Description of drawings

Fig. 1 is the outline drawing of the utility model continuous xenon lamp

Fig. 2 is the working principle diagram of the utility model power supply

Fig. 3 is the front view of the first type light car of the embodiment of the utility model

Fig. 4 is the front view of the second type light car of the embodiment of the utility model

Fig. 5 is a side view of the lamp car shown in Fig. 3 and Fig. 4

Fig. 6 is a schematic diagram of the lamp array arrangement of the embodiment of the solar cell array illumination device of the present invention

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model is further described. But should not limit protection scope of the present utility model with this.

Please refer to Fig. 1 first. Fig. 1 is an outline drawing of the continuous xenon lamp of the present invention. The lamp tube 3 of the xenon lamp is made of high-quality doped quartz glass tube, the cathode 1 is made of reserve type high-temperature resistant material, and the anode 2 is processed into a strip of refractory material. The shape of the thermal isolation groove improves its high-temperature radiation self-cooling performance and reduces the operating temperature of the conduction part. An auxiliary electrode (wire) can also be added to the xenon lamp to help start.

When the xenon lamp is working, the forced air cooling method is adopted.

Usually, long-arc xenon lamps are powered by AC mains. The advantage is that the power supply is simple and the power supply is high, but its AC ripple is large and the light is unstable. When working with DC, it often requires a bulky power conversion device due to the low working voltage. , and the work efficiency is low. According to the condition of three-phase power supply and balance requirement, the utility model uses three-phase direct rectification and filtering, then uses modern high-power semiconductor devices such as insulated gate double transistors (IGBT) to chop it and adjusts it through PWM. The working principle diagram of the utility model power supply is shown in Figure 2, the composition of the circuit:

The high voltage end and the low voltage end of the DC output of the three-phase direct bridge rectifier circuit 4 are respectively connected to the high voltage end and the low voltage end of the first filter capacitor 5, and the low voltage end of the first filter capacitor 5 is connected to the collector of the insulated gate double transistor 6. The emitter of the gate double transistor 6 is connected to one end of the tubular continuous xenon lamp 10 through the low-voltage terminal of the second filter capacitor 7, and the high-voltage end of the first filter capacitor 5 passes through the high-voltage end of the second filter capacitor 7 and the series trigger circuit 9. Connected to the other end of the tubular continuous xenon lamp 10, a Hall element 8 is sleeved on the connecting line between the second filter capacitor 7 and the series trigger circuit 9, the output end of the Hall element 8 Connect the input terminal of the oscillator pulse width control circuit 11, the second output terminal of the oscillator pulse width control circuit 11 is connected to the second input terminal of the drive circuit 13, the first output terminal of the oscillator pulse width control circuit 11 is controlled The circuit 12 is connected to the first input terminal of the driving circuit 13 , and the output terminal of the driving circuit 13 is connected to the base of the IGBT 6 .

The Hall element 8 samples and detects the current, and the sampled current signal enters the oscillator pulse width control circuit 11 . For the convenience of combination and disassembly, the power supply is designed in a modular manner, and each power supply module 20 is composed of a certain number of the above-mentioned circuits to drive a corresponding number of tubular continuous xenon lamps 10 .

The power module 20 has the following advantages:

1) The power loss is small, less than 10%;

2) It can carry out precise adjustment and achieve the purpose of steady flow. The chopper works at 20-35HZ, which can be adjusted quickly and is convenient for precise control. It is especially suitable for realizing stable power output;

3) The weight and volume of the power supply are reduced, and the movement is convenient.

The lamp array of the embodiment of the solar battery array lighting equipment of the present invention is composed of lamp cars, see Fig. 3, Fig. The front view of the second type light car of the utility model embodiment, Fig. 5 is a side view of the light car shown in Fig. 3 and Fig. 4 . The composition of the lamp car is: a lamp frame 14 is hung on the column 17 perpendicular to the chassis 18, a plurality of lamps 15 are arranged in the lamp frame 14, a tubular continuous xenon lamp 10 is installed in each lamp 15, The power supply module 20 is placed on the chassis 18, and the power supply module 20 is electrically connected to each tubular continuous xenon lamp 10 on the lamp car.

The lamp frames 14 of the lamp car are arranged in two rows from top to bottom with N lamps 15, wherein N is a positive integer greater than or equal to 2, and N=3 in this embodiment, which is called the first type of lamp car 24 .

The lamp frame 14 of the lamp car is arranged in a row from top to bottom with a total of N+1=4 lamps 15, which is called the second type of lamp car 23.

The column 17 is provided with a plurality of hook seats 21, and the lamp frame 14 is hung on different hook seats 21 to change the position of the lamp frame 14 in the vertical direction.

The lamp 15 has an adjusting screw rod 16 inside the lamp frame 14 to adjust the pitch angle and the horizontal rotation angle of the lamp 15 .

Described lamp car chassis 18 is equipped with roller 19 and supporting foot 22.

Fig. 6 is a schematic diagram of the lamp array arrangement of the solar cell array lighting equipment of the present invention. In this embodiment, a second-type light truck 23 is provided at each end, and five first-type light trucks 24 are arranged in the middle. A total of 38 tubular continuous xenon lamps 10 form a lamp array, and each lamp is equipped with a set of lamps. The lamps 15 are molded with a numerical control machine tool, and then pressed into a curved surface with a polished aluminum plate.

The lamp 15 can adjust its pitch angle through the screw rod 16 in the lamp frame 14, and can rotate a certain angle horizontally. This ensures a variety of adjustability of the lamps to meet different light distribution requirements. Light car chassis 18 is equipped with roller 19 to be convenient to move, and can also put down supporting foot 22 to fix light car by turning hand wheel. In order to strengthen the stability of the entire bracket, the power module 20 is ballasted on the chassis of the light truck, so that the light truck will not topple when moving. See Figures 3, 4 and 5.

The tubular continuous xenon lamps 10 of the second type lamp car 23 (see FIG. 4 ) and the first type lamp car 24 (see FIG. 3 ) are arranged to form a plane lamp array, see FIG. 6 . Each light car can be used independently, or combined into a light array to form a large-area lighting surface. Each lamp array is powered and controlled by a corresponding power module 20 respectively. In order to coordinate the work of each module and make the start-up, adjustment and switch of the whole lamp array more convenient, the present embodiment sets up a general control cabinet 25, whose functions are centralized power distribution and adjustment and safety protection.

The second type of lamp car 23 is mainly used to make up for the lack of illumination on the illuminated surfaces on both sides of the lamp array and reduce the unevenness of illumination.

After testing, the relevant parameters and technical indicators of the equipment in this embodiment are as follows:

a. The irradiation area is 3.2×8.7m ² and can be increased or decreased as needed;

b. The working distance is 3.2m, which can also be changed as needed;

c. Irradiation intensity: more than 0.35 solar constant, and can be continuously lowered to below 0.2 solar constant;

d. Illumination unevenness: 10% to 15%;

To sum up, the solar cell array lighting equipment of the present invention integrates the technologies of the light source, power supply and light distribution system, etc., and the present utility model can realize high load intensity, high radiation efficiency and large-area radiation close to the surface color temperature of the sun , High illumination, uniform illumination, high stability, high reliability and high security.

Claims (9)

1, a kind of solar battery array lighting device that is used for the virtual space photoenvironment is characterized in that comprising:

1. adopt high capacity intensity, high radiation efficiency and radiation to make light source near the continuous xenon lamp of tubulose (10) of the high-quality doping quartz ampoule preparation of Solar watch complexion temperature, the many continuous xenon lamps of tubulose (10) are arranged in the lamp battle array;

2. the power module (20) that adopts the direct rectifying and wave-filtering, large power semiconductor device copped wave and the pulse width modulation that exchange three-phase equilibrium is the continuous xenon lamp of described tubulose (10) power supply.

2, solar battery array lighting device according to claim 1, it is characterized in that the continuous xenon lamp of described tubulose (10) is to adopt high-quality doping quartz ampoule (3) preparation, negative electrode (1) selects for use the dispenser-type exotic material to make spear shape tip, and anode (2) is with the shape of refractory materials processing one-tenth with hot isolating trenches.

3, solar battery array lighting device according to claim 1, it is characterized in that described lamp battle array is made up of the lamp car, the formation of this lamp car is: hang a light fitting frame (14) on the column (17) perpendicular to chassis (18), in this light fitting frame (14), arrange a plurality of light fixtures (15), install a continuous xenon lamp of described tubulose (10) in each light fixture (15), go up placement described power module (20) in described chassis (18), this power module (20) is realized being electrically connected with the continuous xenon lamp of each root tubulose (10) on being positioned at this lamp car.

4, solar battery array lighting device according to claim 3 is characterized in that the light fitting frame (14) of described lamp car is lined up two row each N light fixture (15) from top to bottom, and wherein N is the positive integer more than or equal to 2, is called first kind lamp car (24).

5, solar battery array lighting device according to claim 3, the light fitting frame (14) that the it is characterized in that described lamp car common N+1 light fixture (15) that forms a line from top to bottom, wherein N is the positive integer more than or equal to 2, is called the second class lamp car (23).

6, solar battery array lighting device according to claim 3, it is characterized in that described column (17) is provided with a plurality of hook seats (21), described light fitting frame (14) hangs on the different hook seats (21), to change the position of light fitting frame (14) in vertical direction.

7, solar battery array lighting device according to claim 3 is characterized in that described light fixture (15) has adjusting screw mandrel (16) in light fitting frame (14), with the angle of pitch of regulating light fixture (15) with horizontally rotate angle.

8, solar battery array lighting device according to claim 3 is characterized in that described chassis (18) is furnished with roller (19) and feet (22).

9, solar battery array lighting device according to claim 1 is characterized in that described power module (20) is made of a plurality of column circuits down:

The high-pressure side of the direct bridge rectifier of three-phase (4) output direct current and high-pressure side and the low-pressure end that low-pressure end connects first filter capacitor (5) respectively, the collector electrode of the low pressure termination insulated gate pair transistor (6) of first filter capacitor (5), the emitter of this insulated gate pair transistor (6) is through an end of the continuous xenon lamp of the described tubulose of low pressure termination (10) of second filter capacitor (7), the high-pressure side of first filter capacitor (5) is through the high-pressure side of second filter capacitor (7), connect the other end of the continuous xenon lamp of described tubulose (10) behind the series connection circuits for triggering (9), one Hall element (8) is enclosed within on the line between described second filter capacitor (7) and the described series connection circuits for triggering (9), the input of the output connection oscillator pulse width control circuit (11) of this Hall element (8), second input of the second output termination drive circuit (13) of this oscillator pulse width control circuit (11), first output of this oscillator pulse width control circuit (11) connects the first input end of described drive circuit (13), the base stage of the described insulated gate pair transistor of the output termination of this drive circuit (13) (6) through control circuit (12).

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