TWI427891B - Power supplying system and solar energy converting device - Google Patents

Description

Power supply system and solar energy conversion device

The invention belongs to the field of solar energy utilization, in particular to a power supply system and a solar energy conversion device using solar energy.

Solar power generation that converts light energy into electrical energy by photoelectric conversion is widely used as a method of obtaining clean energy.

A key component of solar power generation is semiconductor materials for photoelectric conversion. When sunlight is applied to the semiconductor material, electrons in the P-type semiconductor diffuse to the N-type semiconductor through the electric field, and holes are generated on the P-type semiconductor, and the entire process is called a photovoltaic effect. When an external circuit is connected, a current is generated.

However, the semiconductor material is expensive, and the manufacturing process of the solar energy conversion device in which the above semiconductor material is manufactured into a power supply system is complicated, and the manufacturing cost is high.

In view of this, it is necessary to provide a power supply system that is simple to manufacture and low in cost.

In order to solve the technical problem that the manufacturing process is complicated and the manufacturing cost is high in the prior art, the present invention provides a power supply system with low manufacturing cost.

The technical solution adopted by the present invention is: the power supply system includes: a first intersection a power source, a second AC power source, a switch, an LC circuit and a frequency converter; the input end of the switch is connected to the output end of the second AC power source for turning on or off the second AC power source; The input end is respectively connected to the output end of the first alternating current power source and the output end of the switch, and is used for waveform reforming the power source of the first and second alternating current power sources; the input end of the frequency converter is connected to the output end of the LC circuit, The frequency of the alternating current that changes the output of the LC circuit. The first AC power source is a solar energy conversion device, and includes a casing, a thermal expansion component, a connecting rod, a coil and a plurality of permanent magnets; the casing has an opening, and the container is disposed near the opening, the container a central portion of the container is formed with a through hole, the inside of the container is a heat sealed space filled with an inert gas; the thermal expansion element is disposed in the container and surrounded by the container, one end of the thermal expansion element is adjacent to the through hole, and the other end is connected to the connecting rod; A permanent magnet is disposed on the inner wall of the housing; the coil surrounds the connecting rod and is located between the plurality of permanent magnets.

Compared with the prior art, the present invention employs a low-cost component and is simple in structure and easy to manufacture.

100‧‧‧First AC power supply

200‧‧‧second AC power supply

300‧‧‧LC circuit

400‧‧‧ Pulse Width Modulation Controller

500‧‧‧Inverter

600‧‧‧ switch

110‧‧‧shell

120‧‧‧ Thermal expansion components

130‧‧‧Connecting rod

140‧‧‧ permanent magnet

150‧‧‧ coil

160‧‧‧Converging lens

112‧‧‧ openings

114‧‧‧ Container

116‧‧‧through hole

1 is a schematic diagram of a power supply system according to an embodiment of the present invention; and FIG. 2 is a schematic diagram of a solar energy conversion apparatus according to an embodiment of the present invention.

In order to make the objects, technical solutions and effects of the present invention more comprehensible, the present invention will be further described in detail below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to FIG. 1 , a power supply system 10 according to an embodiment of the present invention includes a first AC power source 100 , a second AC power source 200 , an LC circuit 300 , a Pulse Width Modulation PWM controller 400 , and a frequency converter 500 . And switch 600.

The first AC power source 100 described above is a solar energy conversion device for converting solar energy into alternating current. The second AC power source 200 can be an AC power for industrial use, or a generator of the prior art.

The input end of the switch 600 is connected to the output end of the second AC power source 200 for turning on or off the second AC power source 200.

The input ends of the LC circuit 300 are respectively connected to the output end of the first AC power source 100 and the output end of the switch 600 for waveform arranging the AC power outputted by the first and second AC power sources. In this embodiment, the LC circuit is composed of an inductor and a capacitor in parallel.

The input end of the above-mentioned inverter (Transducer) 500 is connected to the output end of the LC circuit 300 for generating an alternating current having a frequency of 10 kHz to 1 MHz, preferably generating an alternating current having a frequency of 40 kHz to 400 kHz. In this embodiment, the frequency converter 500 includes a rectifier and an inverter. The rectifier is used to convert the input alternating current into direct current, and the inverter is used to convert the direct current into alternating current of the desired frequency.

The input end of the PWM controller 400 is connected to the contact 202 between the output end of the LC circuit 300 and the input end of the inverter 500, and the contact between the input end of the switch 600 and the output end of the second AC power supply 200, respectively. 302, configured to control the switch 600 to be turned on according to an output voltage condition of the LC circuit 300. In this embodiment, the first AC power source 100 is generally used to supply power, and when the first AC power source is insufficiently powered, the second AC power source 200 is turned on for power supply.

Referring to FIG. 2, the first AC power source 100 includes a housing 110 and a thermal expansion element. A member 120, a connecting rod 130, a plurality of permanent magnets 140, a coil 150 and a converging lens 160.

The housing 110 has an opening 112, a container 114 is disposed adjacent to the opening 112, and a through hole 116 is formed in a central portion of the container 114. The inside of the container 114 is a heat sealed space, and the inside is filled with an inert gas. In the present embodiment, the inert gas is Helium gas.

The thermal expansion element 120 is in the shape of a truncated cone having a narrow top portion 122 and a wide width bottom portion 124. The thermal expansion element 120 is disposed in the container 114 and is surrounded by the container 114, the top portion 122 of which is embedded in the container 114 adjacent the through hole 116, and the bottom portion 124 is exposed outside the container 114. The thermal expansion element 120 is made of a thermally expandable material.

The connecting rod 130 is wound by the coil 150, and one end thereof is connected to the bottom 124 of the thermal expansion element 120.

The plurality of permanent magnets 140 are disposed in the housing 110, and the coils 150 are disposed between the permanent magnets 140. In the present embodiment, the permanent magnet 140 can be made of samarium cobalt (SmCo) or neodymium iron boron (NdFeB) material.

The converging lens 160 is disposed at the opening 112 for collecting light.

In use, the condenser lens 160 converges sunlight, the concentrated sunlight is incident on the container 114, and partially enters the thermal expansion element 120 through the through hole 116. The inert gas in the vessel 114 absorbs the energy of sunlight. The thermal expansion element 120 absorbs part of the energy of the sunlight and the energy transmitted by the container 114, and is thermally deformed to drive the connecting rod 130 to move in the magnetic field generated by the permanent magnet 140. The coil 150 wound around the connecting rod 130 cuts the magnetic field lines of the magnetic field to generate an electric potential, which is connected to the circuit circuit to output a current, that is, the first alternating current power source 100 of the present embodiment is formed.

The manufacturing process of the magnesium alloy generally uses direct current, and the power supply system 10 provided by the embodiment of the present invention outputs an alternating current having a frequency of 10 kHz to 1 MHz, preferably 40 kHz to 400 kHz, which is beneficial to the magnesium alloy when used as a power source for manufacturing a magnesium alloy. The formation of a close-packed hexagonal structure increases the plasticity of the magnesium alloy.

Although the present invention has been particularly shown and described with reference to the preferred embodiments of the invention, the invention may be The spirit and scope.

100‧‧‧First AC power supply

110‧‧‧shell

120‧‧‧ Thermal expansion components

130‧‧‧Connecting rod

140‧‧‧ permanent magnet

150‧‧‧ coil

160‧‧‧Converging lens

112‧‧‧ openings

114‧‧‧ Container

116‧‧‧through hole

Claims (10)

A power supply system includes a first alternating current power source, a second alternating current power source, a switch, an LC circuit and a frequency converter; an input end of the switch is connected to an output end of the second alternating current power source for turning on or off a second alternating current power source; the input end of the LC circuit is respectively connected to an output end of the first alternating current power source and an output end of the switch, and is used for waveform reforming the power source of the first and second alternating current power sources; The input end is connected to the output end of the LC circuit for changing the frequency of the alternating current outputted by the LC circuit; the improvement is that the first alternating current power source is a solar energy conversion device, and includes a casing, a thermal expansion component, and a connecting rod. a coil and a plurality of permanent magnets; the casing has an opening, the container is disposed near the opening, a central portion of the container forms a through hole, the inside of the container is a heat sealed space, and is filled with an inert gas; and the thermal expansion element is disposed in the container And being surrounded by the container, one end of the thermal expansion element is adjacent to the through hole, and the other end is connected with the connecting rod; the plurality of permanent magnets are disposed on the inner wall of the housing; Said coil surrounds the connecting rod, and between said plurality of permanent magnets. The power supply system of claim 1, wherein the solar energy conversion device further comprises a converging lens disposed at the opening. The power supply system of claim 1, wherein the thermal expansion element has a truncated cone shape, and includes a narrower top portion and a wider width bottom portion; the top portion is embedded in the container adjacent to the through hole, and the bottom portion is exposed. Outside the container, the connecting rod connects to the bottom. The power supply system of claim 1, wherein the power supply system further comprises a pulse width modulation controller, wherein the input ends are respectively connected to the junction between the output end of the LC circuit and the input end of the frequency converter. And a contact between the input end of the switch and the output end of the second AC power source for controlling the switch to be turned on according to the output voltage condition of the LC circuit. The power supply system of claim 1, wherein the frequency converter is used for output frequency The rate is 10KHz to 1MHz AC. The power supply system of claim 5, wherein the frequency converter is used to output an alternating current having a frequency of 40 kHz to 400 kHz. The power supply system of claim 1, wherein the power supply system is used as a power source for manufacturing a magnesium alloy. A solar energy conversion device is improved in that the solar energy conversion device comprises a casing, a thermal expansion element, a connecting rod, a coil and a plurality of permanent magnets; the casing has an opening, and the container is disposed near the opening, the container a central portion of the container is formed with a through hole, the inside of the container is a heat sealed space filled with an inert gas; the thermal expansion element is disposed in the container and surrounded by the container, one end of the thermal expansion element is adjacent to the through hole, and the other end is connected to the connecting rod; A permanent magnet is disposed within the housing; the coil surrounds the connecting rod and is located between the plurality of permanent magnets. The solar energy conversion device of claim 8, wherein the solar energy conversion device further comprises a converging lens disposed at the opening. The solar energy conversion device of claim 8, wherein the thermal expansion element has a truncated cone shape, and includes a narrow top portion and a wide width bottom portion; the top portion is embedded in the container adjacent to the through hole, and the bottom portion is exposed. Outside the container, the connecting rod connects to the bottom.