Multifunctional power supply system of solar energy

A power supply system and solar battery technology, applied in the field of multifunctional solar power supply systems, can solve the problems of one-way transmission of energy and low efficiency, and achieve the effect of solving one-way transmission of energy, high efficiency and low efficiency

Inactive Publication Date: 2004-10-27
黄敏超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve technical problems such as low efficiency and one-way energy transmission of traditional sola

Method used

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  • Multifunctional power supply system of solar energy
  • Multifunctional power supply system of solar energy
  • Multifunctional power supply system of solar energy

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Example 1

[0018] Example 1 of the present invention is as figure 2 As shown, it includes solar cells, storage batteries, high-frequency isolation transformer T1, field effect transistors Q1-Q8, diodes D1-D8, capacitors C1 and C2, and double-pole single-throw switch S0. The high-frequency isolation transformer T1 consists of three windings NP1 , NP2 and NS1.

[0019] The input terminals A and B of the embodiment 1 of the present invention are directly connected to the power grid, and one end of the capacitor C1, the end of the same name of the winding NP1 of the high-frequency transformer (marked with black dots in the figure) is connected to the input terminal 1 of the double-pole single-throw switch S0 At the input terminal A; the other end of the capacitor C1, the drain of the field-effect transistor Q1, the cathode of the diode D1 and the input terminal 2 of the double-pole single-throw switch S0 are connected to the input terminal B; the anodes of the diodes D1, D2, ...

Example Embodiment

[0025] Example 2

[0026] Example 2 of the present invention is as image 3 As shown, it includes solar cells, batteries, high-frequency isolation transformer T1, field effect transistors Q1-Q8, diodes D1-D8, capacitors C1 and C2, and single-pole single-throw switch S0. The high-frequency isolation transformer T1 consists of three windings NP1, It is composed of NP2 and NS1.

[0027] The input terminals A and B of the second embodiment of the present invention are directly connected to the power grid. One end of the capacitor C1 and the end of the winding NP1 of the high-frequency transformer with the same name (marked with black electricity in the figure) are connected to the input terminal A, and the input terminal A and the output terminal C is directly connected; the other end of the capacitor C1, the drain of the field effect transistor Q1, the cathode of the diode D1 and the input terminal 1 of the single-pole single-throw switch S0 are connected to the input terminal B; the...

Example Embodiment

[0030] Example 3

[0031] Example 3 of the present invention is as Figure 4 As shown, it includes solar cells, batteries, high-frequency isolation transformer T1, field effect transistors Q1-Q8, diodes D1-D8, capacitors C1 and C2, and single-pole single-throw switch S0. The high-frequency isolation transformer T1 consists of three windings NP1, Composition of NP2 and NS1.

[0032] The input terminals A and B of Embodiment 3 of the present invention are directly connected to the power grid. One end of the capacitor C1, the end of the same name of the winding NP1 of the high-frequency transformer (marked with black electricity in the figure) and the input terminal 1 of the single-pole single-throw switch S0 are connected to The input terminal A, the other end of the capacitor C1, the drain of the field effect transistor Q1 and the cathode of the diode D1 are connected to the input terminal B, and the input terminal B is directly connected to the output terminal D; the anodes of the d...

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Abstract

Chained inverters in high frequency, a.c. converter in high frequency and AC/DC converter in high frequency are adopted in the invention. When power network turns-off power, solar energy stored in accumulator is converted to AC electrical energy to supply to power network or load for keeping continuity of supplying power. When supplying power, power network supplies power for loads, and power energy is stored into accumulator. When voltage in power work is on the high side or in low side, the system supplies stable AC voltage for load. The system transfers energy in two directions providing continuous and stable electrical energy and high efficiency of converting power.

Description

Technical field [0001] The invention relates to a power supply system, in particular to a multifunctional solar power supply system. Background technique [0002] Such as figure 1 As shown, it is a traditional solar power supply system. The solar cell converts solar energy into DC power and stores it in the battery. The high-frequency inverter converts the DC power into a high-frequency AC voltage. The high-frequency transformer realizes electrical isolation and power transmission. The high-frequency rectifier converts the isolated high The high-frequency AC voltage is rectified into DC voltage, and then supplied to the grid or load through the grid converter inverter. [0003] The traditional solar power supply system has the following disadvantages: [0004] 1) The power needs to go through two-stage power conversion, the on-state loss of the system is large, and the efficiency is low; [0005] 2) The system can only transmit energy in one direction, that is, energy ca...

Claims

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Application Information

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IPC IPC(8): H02J7/35
Inventor 黄敏超
Owner 黄敏超
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