Multi-energy supply power supply of overhead transmission line monitoring device

Abstract

The utility model discloses a multi-energy supply power supply of an overhead transmission line monitoring device, which comprises a power supply module, the power supply module comprises a solar power supply and an induction coil power supply, and the output end of the induction coil power supply is connected with a rectification filter circuit. The output end of the solar power supply and the output end of the induction coil power supply are jointly connected with a first automatic switching circuit, the output end of the first automatic switching circuit is connected with a DC-to-DC circuit, the output end of the DC-to-DC circuit is connected with a second automatic switching circuit and a DC charging circuit, and the output end of the DC charging circuit is connected with a storage battery. The output end of the storage battery is connected with a second automatic switching circuit, and the output end of the second automatic switching circuit is connected with a DC output circuit. Through the parallel design of various power supplies, the system can automatically select the optimal energy supply power supply according to the actual situation, and automatically switch to other available power supplies when one power supply is insufficient in energy supply; and continuous energy supply of the system is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission line systems, in particular to a multi-energy supply source for an overhead transmission line monitoring device. Background Art

[0002] With the widespread application of overhead transmission line monitoring devices in the power industry, the reliability and stability of its power supply has become the focus of attention. Traditional power supply designs often use only a single power supply. Once the power supply fails or is affected by external factors, it will cause the entire system to be paralyzed, bringing serious impacts to power operations.

[0003] Therefore, those skilled in the art provide a variety of power supply sources for an overhead power transmission line monitoring device to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a multiple energy supply source for an overhead power transmission line monitoring device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multiple energy supply source of an overhead power transmission line monitoring device includes a power supply module, wherein the power supply module includes solar power supply and induction coil power supply, the induction coil power supply output end is connected to a rectifier and filter circuit, the solar power supply and the induction coil power supply are connected in parallel, and the solar power supply and the induction coil power supply output ends are commonly connected to a first automatic switching circuit, the first automatic switching circuit can realize automatic switching between solar power supply and induction coil power supply, the output end of the first automatic switching circuit is connected to a DC-to-DC circuit, the output ends of the DC-to-DC circuit are respectively connected to a second automatic switching circuit and a DC charging circuit, the output end of the DC charging circuit is connected to a battery, the output end of the battery is connected to the second automatic switching circuit, the second automatic switching circuit realizes automatic switching between the DC-to-DC circuit and the battery power supply, and the output end of the second automatic switching circuit is connected to a DC output circuit.

[0007] Preferably, a protection circuit is provided between the solar power supply and the first automatic switching circuit and between the induction coil power supply and the rectification and filtering circuit to perform overvoltage protection.

[0008] Preferably, the DC-to-DC circuit comprises a step-down circuit, which steps down the rectified voltage of the induction coil power supply and the solar voltage to 12V.

[0009] Preferably, the rectification and filtering circuit converts the AC power provided by the induction coil into a DC power.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The present invention adopts a parallel design of multiple power sources such as solar energy supply, induction power supply, and batteries. The system can automatically select the best power supply according to the actual situation, and automatically switch to other available power supplies when a power supply is insufficient to ensure continuous power supply of the system.

[0012] Through intelligent switching and intelligent monitoring and control of multiple power sources, this design can significantly improve the energy supply reliability and stability of the overhead transmission line monitoring device, reduce the system downtime caused by power failure, and improve the system's operating efficiency and safety. At the same time, the system's energy utilization rate has also been significantly improved, reducing the system's operating costs and dependence on external energy, with significant economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more specifically and intuitively illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 A flow chart of multiple energy supply sources for an overhead power transmission line monitoring device proposed by the utility model;

[0015] Figure 2 A circuit diagram of multiple energy supply for an overhead power transmission line monitoring device proposed by the utility model;

[0016] Figure 3 This is the step-down circuit diagram proposed by the utility model;

[0017] Figure 4 This is the battery power supply circuit diagram proposed by the utility model;

[0018] Figure 5 This is the circuit diagram of the H1 circuit board mainboard proposed by the utility model. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1, a multiple energy supply source of an overhead transmission line monitoring device, including a power supply module, the power supply module including solar power supply and induction coil power supply, the induction coil power supply output end is connected to a rectifier and filter circuit, the solar power supply and the induction coil power supply are connected in parallel, and the solar power supply and the induction coil power supply output ends are commonly connected to a first automatic switching circuit, the first automatic switching circuit can realize automatic switching between solar power supply and induction coil power supply, the output end of the first automatic switching circuit is connected to a DC to DC circuit, the output ends of the DC to DC circuit are respectively connected to a second automatic switching circuit and a DC charging circuit, the output end of the DC charging circuit is connected to a battery, the output end of the battery is connected to the second automatic switching circuit, the second automatic switching circuit realizes automatic switching between the DC to DC circuit and the battery power supply, and the output end of the second automatic switching circuit is connected to a DC output circuit.

[0021] A protection circuit is provided between the solar power supply and the first automatic switching circuit and between the induction coil power supply and the rectification and filtering circuit to perform overvoltage protection.

[0022] The DC-to-DC circuit includes a step-down circuit, which steps down the rectified voltage of the induction coil power supply and the solar voltage to 12V.

[0023] The rectifying and filtering circuit converts the AC power provided by the induction coil into a DC power.

[0024] like Figure 2 As shown, CN1 induction coil power supply interface, D4 ​​air discharge tube, R1 varistor constitute the front-stage protection circuit of the induction coil power supply to realize overvoltage protection, Q1, Q2 thyristors, D1, D2 voltage regulator diodes and peripheral circuits constitute the automatic power control circuit of the induction coil power supply; D3 rectifier bridge, C2, C3 filter capacitors constitute the rectifier filter circuit to convert AC power into DC power, F1 self-recovery fuse, D14 transient suppression diode constitute the DC power supply front-stage protection circuit; CN4 solar power supply interface, D10 can realize the automatic switching between solar power supply and induction coil power supply;

[0025] like Figure 3 As shown, U1 and its peripheral circuits form a DCDC step-down circuit, which steps down the voltage rectified by the induction coil or the solar voltage to 12V. The 12V voltage can charge the battery and power the mainboard.

[0026] like Figure 4As shown, D9 realizes automatic switching to battery power supply when both the induction coil power supply and solar energy power supply are unable to supply power; Q3, Q4 and their peripheral circuits constitute a battery charging control circuit to control whether to charge the battery; CN2 is a switch interface, CN3 is a battery interface; U2 and peripheral devices constitute a battery charging current detection circuit to achieve dynamic control of the battery current;

[0027] like Figure 4 As shown, the H1 circuit board mainboard interface, the 12V power supply supplies power to the mainboard to realize the collection of circuit power supply voltage, such as battery voltage, induction voltage and solar voltage; the battery charging current can be controlled through BAT_SET, and BAT_CTL can control the battery charging.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multiple energy supply source for an overhead power transmission line monitoring device, comprising a power supply module, characterized in that: The power supply module includes solar power supply and induction coil power supply, the output end of the induction coil power supply is connected to a rectifier and filter circuit, the solar power supply and the induction coil power supply are connected in parallel, and the output ends of the solar power supply and the induction coil power supply are commonly connected to a first automatic switching circuit, the first automatic switching circuit can realize automatic switching between solar power supply and induction coil power supply, the output end of the first automatic switching circuit is connected to a DC-to-DC circuit, the output ends of the DC-to-DC circuit are respectively connected to a second automatic switching circuit and a DC charging circuit, the output end of the DC charging circuit is connected to a battery, the output end of the battery is connected to the second automatic switching circuit, the second automatic switching circuit realizes automatic switching between the DC-to-DC circuit and the battery power supply, and the output end of the second automatic switching circuit is connected to a DC output circuit.

2. The multiple energy supply sources of an overhead power transmission line monitoring device according to claim 1, characterized in that: A protection circuit is provided between the solar power supply and the first automatic switching circuit and between the induction coil power supply and the rectification and filtering circuit to perform overvoltage protection.

3. The multiple energy supply sources of an overhead power line monitoring device according to claim 1, characterized in that: The DC-to-DC circuit includes a step-down circuit, which steps down the rectified voltage of the induction coil power supply and the solar voltage to 12V.

4. The multiple energy supply sources of an overhead power transmission line monitoring device according to claim 1, characterized in that: The rectifying and filtering circuit converts the AC power provided by the induction coil into a DC power.

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