Power supply device for transmission line monitoring device

Abstract

The embodiment of the present invention discloses a power supply device for a power transmission line monitoring device in the field of power supply technology, a power capture module, a power conversion module and a parameter adjustment module, The energy input end of the energy input module wraps the power line, and the output end of the energy input module wraps the power line. The power converter is connected to a power supply module and used to obtain electrical energy in a power line. The output terminal of the conversion module is connected to the parameter adjustment module, and the obtained electric energy The parameter is used to convert the energy into electrical energy that matches the monitoring device. The output terminal of the adjustment module is connected to the input terminal of the monitoring device, and the harvested electric energy The energy harvesting module is used to adjust the parameters of the energy harvesting module and transmit them to the monitoring device. The module is designed to be less likely to adversely affect the normal operation of the power transmission line and to continuously receive electrical energy. It is possible to improve the power supply stability and the operation stability of the monitoring device. Cut.

Description

[Technical field]

[0001] The present invention relates to the field of power supply technology, and in particular to a power supply device for a power line monitoring device. [Background technology]

[0002] With the accelerating development of smart grids, new green energy sources such as solar power generation and wind power generation are becoming more and more popular. As a large number of energy sources are introduced into the power grid, the current signal of the power grid contains overvoltages caused by lightning. In addition to generating pressure signals, many other signals, including direct current, harmonics and high frequency transients, are also generated at the working frequency. The occurrence of these signals affects the safety, reliability and stability of the power grid. In severe cases, this may result in the grid being unable to provide power normally or may even result in serious damage to the grid. Since this can cause serious accidents, monitoring of the power line voltage signal is a very important measure. In order to minimize the impact of the monitoring device on the transmission line, non-contact monitoring is usually used. However, whether it is a sensing class monitor or an acquisition class monitor, Regardless of the equipment, the back-end circuitry is almost always designed with active devices. This has created an urgent need for a method to continuously power active devices on high-voltage power lines. This is a major issue. Prior art commonly involves power generation from solar panels or capturing energy from temperature differences. However, both solar power generation and temperature differences are highly correlated with the environment. This can lead to power instability, affecting the power needs of the monitoring equipment. Summary of the Invention

[0003] In view of the above, the present invention provides a method for solving the problem of unstable power supply in the prior art. To provide a power supply device for a transmission line monitoring device. For one or some or all of the above objects, or for other objects, the present invention provides a power supply device for a transmission line monitoring device. According to a first aspect, The power supply device for a transmission line monitoring device includes an energy intake module, a power conversion module, and a parameter adjustment module. The energy intake end of the energy intake module wraps around the transmission line, and the output end is connected to the power conversion module, and is used to obtain electrical energy in the transmission line. The output end of the power conversion module is connected to the parameter adjustment module, and is used to convert the obtained electrical energy into electrical energy that matches the monitoring device. The output end of the parameter adjustment module is connected to the input end of the monitoring device, and is used to adjust the parameters of the obtained electrical energy and transmit it to the monitoring device. Preferably, the power conversion module includes a high-frequency transformer. The energy intake module includes a first capacitor C1 and a pulse discharge unit. The first capacitor C1 wraps around the transmission line, and the output end of the first capacitor C1 is connected to the input end of the pulse discharge unit. The input end of the pulse discharge unit is connected to one end of the high-frequency transformer, and the output end of the pulse discharge unit and the other end of the high-frequency transformer are grounded. Preferably, the pulse discharge unit is a second capacitor C2. One end of the second capacitor C2 is connected to the high-frequency transformer, and the other end of the second capacitor C2 is grounded. Preferably, the parameter adjustment module includes a voltage multiplier rectification unit and a voltage stabilization unit. and is used to obtain electrical energy in the transmission line. The output end of the power conversion module is connected to the parameter adjustment module, and is used to convert the obtained electrical energy into electrical energy that matches the monitoring device. The output end of the parameter adjustment module is connected to the input end of the monitoring device, and is used to adjust the parameters of the obtained electrical energy and transmit it to the monitoring device. The output end of the power conversion module is connected to the parameter adjustment module, and is used to convert the obtained electrical energy into electrical energy that matches the monitoring device. The output end of the parameter adjustment module is connected to the input end of the monitoring device, and is used to adjust the parameters of the obtained electrical energy and transmit it to the monitoring device. The output end of the parameter adjustment module is connected to the input end of the monitoring device, and is used to adjust the parameters of the obtained electrical energy and transmit it to the monitoring device. The output end of the parameter adjustment module is connected to the input end of the monitoring device, and is used to adjust the parameters of the obtained electrical energy and transmit it to the monitoring device. Preferably, the power conversion module includes a high-frequency transformer. The energy intake module includes a first capacitor C1 and a pulse discharge unit. The first capacitor C1 wraps around the transmission line, and the output end of the first capacitor C1 is connected to the input end of the pulse discharge unit. The input end of the pulse discharge unit is connected to one end of the high-frequency transformer, and the output end of the pulse discharge unit and the other end of the high-frequency transformer are grounded. Preferably, the pulse discharge unit is a second capacitor C2. One end of the second capacitor C2 is connected to the high-frequency transformer, and the other end of the second capacitor C2 is grounded. Preferably, the pulse discharge unit is a second capacitor C2. One end of the second capacitor C2 is connected to the high-frequency transformer, and the other end of the second capacitor C2 is grounded. The other end of the second capacitor C2 is grounded. Preferably, the parameter adjustment module includes a voltage multiplier rectification unit and a voltage stabilization unit. and includes a voltage multiplier rectification unit and a voltage stabilization unit. The input terminal of the voltage-doubling rectification unit is connected to the output terminal of the power conversion module, and the output terminal of the voltage-doubling rectification unit is connected to the input terminal of the voltage stabilization unit and is used to increase and / or convert the obtained electrical energy. The output terminal of the voltage stabilization unit is connected to the input terminal of the monitoring device and is used to stabilize the obtained electrical energy. Preferably, the voltage-doubling rectification unit includes a first diode D1, a second diode D2, a third capacitor C3, and a fourth capacitor C4. The first diode D1 is connected in series to the third capacitor C3, the second diode D2 is connected in series to the fourth capacitor C4, and the series circuit of the first diode D1 and the third capacitor C3 is connected in parallel to the series circuit of the second diode D2 and the fourth capacitor C4. Preferably, the voltage stabilization unit includes a voltage stabilization chip and a fifth capacitor C5. The input terminal of the voltage stabilization chip is connected to the fourth capacitor C4, the output terminal of the voltage stabilization chip is connected to one end of the fifth capacitor C5, the ground terminal of the voltage stabilization chip is grounded, and the other end of the fifth capacitor C5 is grounded. Preferably, a voltage drop detection module is connected in parallel to the voltage-doubling rectification unit. The voltage drop detection module is used to detect whether the voltage of the electrical energy output from the voltage-doubling rectification unit matches a preset target voltage, and issues an alarm if they do not match. Preferably, a voltage drop feeding module is connected to the voltage drop detection module. The voltage drop feeding module is used to supply power to the voltage drop detection module when the voltage of the electrical energy output from the voltage-doubling rectification unit is lower than the preset target voltage. The voltage drop feeding module is used to supply power to the voltage drop detection module when the voltage of the electrical energy output from the voltage-doubling rectification unit is lower than the preset target voltage. The voltage drop feeding module is used to supply power to the voltage drop detection module when the voltage of the electrical energy output from the voltage-doubling rectification unit is lower than the preset target voltage. Preferably, a voltage drop detection module is connected in parallel to the voltage-doubling rectification unit. The voltage drop detection module is used to detect whether the voltage of the electrical energy output from the voltage-doubling rectification unit matches a preset target voltage, and issues an alarm if they do not match. Preferably, a voltage drop feeding module is connected to the voltage drop detection module. The voltage drop feeding module is used to supply power to the voltage drop detection module when the voltage of the electrical energy output from the voltage-doubling rectification unit is lower than the preset target voltage. The voltage drop feeding module is used to supply power to the voltage drop detection module when the voltage of the electrical energy output from the voltage-doubling rectification unit is lower than the preset target voltage. The voltage drop power supply module is connected in parallel to the monitoring device, and the voltage drop power supply module is used to supply power to the monitoring device when the voltage detected by the voltage drop detection module does not match the target voltage. Preferably, the voltage drop power supply module includes a first resistor R1, a DC power supply, a third diode D3 and a field effect transistor Q3, the DC power supply is connected to the drain of the field effect transistor Q3, one end of the first resistor R1 is connected to the gate of the field effect transistor Q3, and the other end of the first resistor R1 is grounded, the anode of the third diode D3 is connected to the gate of the field effect transistor Q3 and the cathode is connected to the input end of the monitoring device, and the source of the field effect transistor Q3 is connected to the output end of the monitoring device. Preferably, the voltage drop detection module includes a second resistor R2, a third resistor R3, a fourth diode D4, a sixth capacitor C6, a fourth resistor R4, a first transistor Q1, a fifth resistor R5 and a second transistor Q2, the second resistor R2 is connected in series to the third resistor R3, and the second resistor R2 is connected in parallel to the fourth resistor R4 and the sixth resistor R6, the base of the first transistor Q1 is connected to the positive electrode of the fourth resistor R4, the emitter is connected to the cathode of the fourth resistor R4 and the positive electrode of the sixth resistor R6, and the collector is connected to the fifth resistor R5, the base of the second transistor Q2 is connected to the other end of the fifth resistor R5, the emitter is grounded, and the collector is connected to the output end of the voltage drop detection module.

Advantages of the Invention

[0004] ​ The embodiments for implementing the present invention have the following beneficial effects. The energy intake module takes in the electrical energy in the power transmission line, forms an electric current, and transmits it to the power conversion module. Since the type of the electric current is suitable for the monitoring device, the power conversion module processes the electric current. Finally, the parameter adjustment module adjusts parameters such as the magnitude of the electric current and outputs them to the monitoring device. Thereby, the monitoring device can obtain appropriate electrical energy and the normal operation of the monitoring device is guaranteed. Compared with methods such as solar power generation and thermoelectric generation, the energy intake module is less likely to have an adverse effect on the normal operation of the power transmission line and can continuously obtain electrical energy. It can improve the power supply stability and enhance the operation stability of the monitoring device.

Brief Description of the Drawings

[0005] To more clearly explain the technical solutions in the embodiments of the present invention or the prior art, the following briefly describes the attached drawings that need to be used in the description of the embodiments or the prior art However, it is obvious that the attached drawings described below are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative labor.

Figure 1

Figure 2

Figure 3

Modes for Carrying Out the Invention

[0006] Hereinafter, with reference to the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative labor are all included in the protection scope of the present invention. In the following description, reference is made to "some embodiments", which describe a subset of all possible embodiments. However, "some embodiments" may be the same subset or a different subset of all possible embodiments, and can be combined with each other as long as they do not conflict. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art of the present invention. The terms used herein are only used for the purpose of explaining the objectives of the embodiments of the present invention and are not intended to limit the present invention. The embodiments of the present application provide a power supply device for a transmission line monitoring device. In the prior art, in order to supply power to the monitoring device on the transmission line, usually, methods such as solar power generation and thermoelectric power generation are used. However, both solar energy and temperature difference are highly correlated with the environment. Due to being strongly affected by the environment, the output power is likely to be unstable, which affects the power demand of the monitoring device. To overcome the above technical deficiencies, the embodiments of the present application provide a power supply device for a transmission line monitoring device. As shown in FIG. 1, it includes an energy capture module 1, a power conversion module, and a parameter adjustment module. Here, the energy capture end of the energy capture module 1 wraps the transmission line, and the current output end is connected to the power conversion module. The electricity in the transmission line is captured by the energy capture module 1 and then converted by the power conversion module, and finally adjusted by the parameter adjustment module to output a stable power supply for the monitoring device. However, both solar energy and temperature difference are highly correlated with the environment. Due to being strongly affected by the environment, the output power is likely to be unstable, which affects the power demand of the monitoring device. To overcome the above technical deficiencies, the embodiments of the present application provide a power supply device for a transmission line monitoring device. As shown in FIG. 1, it includes an energy capture module 1, a power conversion module, and a parameter adjustment module. Here, the energy capture end of the energy capture module 1 wraps the transmission line, and the current output end is connected to the power conversion module. The electricity in the transmission line is captured by the energy capture module 1 and then converted by the power conversion module, and finally adjusted by the parameter adjustment module to output a stable power supply for the monitoring device. It is used to obtain energy. The current is transmitted to the current input terminal of the power conversion module is. The current output terminal of the power conversion module is connected to the current input terminal of the parameter adjustment module subsequently, the power conversion module is used to convert the electrical energy obtained from the energy capture module 1 into electrical energy that matches the monitoring device. Specifically, in one embodiment, the power conversion module converts the obtained electrical energy into electrical energy within the rated voltage range of the monitoring device. in one embodiment, the power conversion module converts the obtained electrical energy into electrical energy within the rated voltage range of the monitoring device. is converted. The output terminal of the parameter adjustment module is connected to the input terminal of the monitoring device and is used to adjust the parameters of the obtained electrical energy and transmit it to the monitoring device. is used to adjust the parameters of the obtained electrical energy and transmit it to the monitoring device. Specifically, in one embodiment, after the current input terminal of the parameter adjustment module obtains the current transmitted from the power conversion module, it converts the current into a direct current and stabilizes the voltage value of the direct current within the rated voltage range of the monitoring device. Specifically, in one embodiment, after the current input terminal of the parameter adjustment module obtains the current transmitted from the power conversion module, it converts the current into a direct current and stabilizes the voltage value of the direct current within the rated voltage range of the monitoring device. is stabilized. The energy capture module 1 obtains the electrical energy in the power transmission line and forms a current to transmit it to the power conversion module. After the power conversion module processes the current, it adapts the type of the current to the monitoring device. Finally, the parameter adjustment module adjusts parameters such as the magnitude of the current and outputs it to the monitoring device. The monitoring device can obtain appropriate electrical energy, ensuring the normal operation of the monitoring device. Compared with methods such as solar power generation and thermoelectric generation, The energy capture module 1 is less likely to have an adverse impact on the normal operation of the power transmission line and can continuously obtain electrical energy. It can improve the power supply stability and enhance the operation stability of the monitoring device. The energy capture module 1 is less likely to have an adverse impact on the normal operation of the power transmission line and can continuously obtain electrical energy. It can improve the power supply stability and enhance the operation stability of the monitoring device. The energy capture module 1 is less likely to have an adverse impact on the normal operation of the power transmission line and can continuously obtain electrical energy. It can improve the power supply stability and enhance the operation stability of the monitoring device. The monitoring device can obtain appropriate electrical energy, ensuring the normal operation of the monitoring device. Compared with methods such as solar power generation and thermoelectric generation, the energy capture module 1 is less likely to have an adverse impact on the normal operation of the power transmission line and can continuously obtain electrical energy. It can improve the power supply stability and enhance the operation stability of the monitoring device. the energy capture module 1 is less likely to have an adverse impact on the normal operation of the power transmission line and can continuously obtain electrical energy. It can improve the power supply stability and enhance the operation stability of the monitoring device. can be improved, and the operation stability of the monitoring device can be enhanced. In another embodiment of the present application, as shown in FIG. 2, the power conversion module is a high-frequency transformer It includes. Specifically, in one embodiment, the power conversion module is the high-frequency transformer 3. The energy intake module 1 includes the first capacitor C1 and the pulse discharge unit 2. The first capacitor C1 wraps the power transmission line, and the output end of the first capacitor C1 is connected to the input end of the aforementioned pulse discharge unit 2. Specifically, in one embodiment, the first capacitor C1 is a high-voltage energy intake capacitor, and is a clamp-type hollow cylindrical coaxial high-voltage energy intake capacitor embedded on the power transmission line. The current output end of the first capacitor C1 is connected to the current input end of the pulse discharge unit 2. For ease of understanding, in one embodiment, as shown in FIG. 3, Ic is the conduction current, and I d is the displacement current, S1 is the inner surface area of the coaxial capacitor, and S2 is the outer surface area of the coaxial capacitor. Ampere's circuit theorem: According to TIFF0007702063000001.tif542, the charge density on the coaxial side is δ. During the charging and discharging of the capacitor, the amount of charge accumulated on the electrode plate changes with time. The conduction current is TIFF0007702063000002.tif518, According to the formula of the potential shift magnetic flux, the conduction current is expressed by the following formula: As can be seen from TIFF0007702063000003.tif623 Figure 2, the right displacement current is expressed by the following formula: The potential shift vector in the coaxial container is expressed by the following formula according to TIFF0007702063000004.tif516: TIFF0007702063000005.tif516 where ε0 is the permittivity of free space, and ε r is the relative permittivity of the medium in the container, TIFF0007702063000006.tif43 is the electric field strength vector, TIFF0007702063000007.tif42 is the polarization intensity vector, and the displacement current in the coaxial container is expressed by the following formula: TIFF0007702063000008.tif627 TIFF0007702063000009.tif439 The relationship between the capacitor charge and voltage is Q = CU. In the time-varying loop, the displacement current flowing through the capacitor is expressed by the following formula: The displacement current flowing through the capacitor is expressed by the following formula: TIFF0007702063000010.tif622 By deriving the above formula, an appropriate capacitance value of the high-voltage energy capture capacitor can be selected to obtain the maximum displacement current. The maximum displacement current can be obtained. The input end of the pulse discharge unit 2 is connected to one end of the high-frequency transformer 3, and the output end of the pulse discharge unit 2 and the other end of the high-frequency transformer 3 are grounded. Specifically, in one embodiment, the current input end of the pulse discharge unit 2 is simultaneously connected to the current output end of the first capacitor C1 and the high-voltage side of the high-frequency transformer 3. The current output end of the pulse discharge unit 2 and the other end of the high-voltage side of the high-frequency transformer 3 are grounded. Specifically, in one embodiment, the current input end of the pulse discharge unit 2 is simultaneously connected to the current output end of the first capacitor C1 and the high-voltage side of the high-frequency transformer 3. The current output end of the pulse discharge unit 2 and the other end of the high-voltage side of the high-frequency transformer 3 are grounded. Specifically, in one embodiment, the current input end of the pulse discharge unit 2 is simultaneously connected to the current output end of the first capacitor C1 and the high-voltage side of the high-frequency transformer 3. The current output end of the pulse discharge unit 2 and the other end of the high-voltage side of the high-frequency transformer 3 are grounded. The current output end of the pulse discharge unit 2 and the other end of the high-voltage side of the high-frequency transformer 3 are grounded. The pulse discharge unit is the second capacitor C2. One end of the second capacitor C2 is connected to the high-frequency transformer 3, and the other end of the second capacitor C2 is grounded. The pulse discharge unit is the second capacitor C2. One end of the second capacitor C2 is connected to the high-frequency transformer 3, and the other end of the second capacitor C2 is grounded. That is, the positive electrode of the second capacitor C2 is connected to the high-voltage side of the high-frequency transformer 3, and the negative electrode is grounded. The negative electrode is grounded. The parameter adjustment module includes a voltage multiplier rectifier unit 4 and a voltage stabilization unit 5. The input end of the voltage multiplier rectifier unit 4 is connected to the output end of the power conversion module, and the output end of the voltage multiplier rectifier unit 4 is connected to the input end of the voltage stabilization unit 5, and is used to increase and / or convert the obtained electrical energy. The input end of the voltage multiplier rectifier unit 4 is connected to the output end of the power conversion module, and the output end of the voltage multiplier rectifier unit 4 is connected to the input end of the voltage stabilization unit 5, and is used to increase and / or convert the obtained electrical energy. The input end of the voltage multiplier rectifier unit 4 is connected to the output end of the power conversion module, and the output end of the voltage multiplier rectifier unit 4 is connected to the input end of the voltage stabilization unit 5, and is used to increase and / or convert the obtained electrical energy. The input end of the voltage multiplier rectifier unit 4 is connected to the output end of the power conversion module, and the output end of the voltage multiplier rectifier unit 4 is connected to the input end of the voltage stabilization unit 5, and is used to increase and / or convert the obtained electrical energy. Specifically, in one embodiment, the current input end of the voltage multiplier rectifier unit 4 is the low voltage of the high-frequency transformer 3 It is connected to the side and used to receive the current output from the high-frequency transformer 3. Voltage doubling The current output terminal of the voltage doubling rectification unit 4 is connected to the current input terminal of the voltage stabilization unit 5. Voltage The doubling rectification unit 4 can convert the received current into the current type required by the monitoring device, such as converting alternating current into direct current. Furthermore, when the obtained current does not meet the power demand of the monitoring device, the voltage doubling rectification unit 4 is used to double the voltage. The output terminal of the voltage stabilization unit 5 is connected to the input terminal of the monitoring device and is used to stabilize the obtained electrical energy. Specifically, in one embodiment, the current output terminal of the voltage stabilization unit 5 is connected to the current input terminal of the monitoring device. The voltage stabilization unit 5 is used to stabilize an input voltage greater than the specified voltage. That is, a voltage greater than the rated voltage of the monitoring device is stabilized within a preset range. By adding the voltage doubling rectification unit 4 and the voltage stabilization unit 5 to process the current, the current supplied to the monitoring device can meet the normal working requirements of the monitoring device. Thus, continuous and stable electrical energy can be supplied to the monitoring device. In another embodiment of the present application, as shown in FIG. 2, the voltage doubling rectification unit 4 includes a first diode D1, a second diode D2, a third capacitor C3, and a fourth capacitor C4. In one embodiment, the first diode D1 is connected in series to the third capacitor C3, and the second diode D2 is connected in series to the fourth capacitor C4. The series circuit of the first diode D1 and the third capacitor C3 is connected in parallel with the series circuit of the second diode D2 and the fourth capacitor C4. ​​​​​Specifically, the positive electrode of the first diode D1 and one end of the fourth capacitor C4 are connected to the positive electrode terminal of the voltage doubler rectification unit 4. The negative electrode of the first diode D1 is connected to one end of the third capacitor C3, and the other end of the third capacitor C3 is connected to the negative electrode terminal of the voltage doubler rectification unit 4. The other end of the fourth capacitor C4 is connected to the negative electrode of the second diode D2, and the positive electrode of the second diode D2 is connected to the negative electrode terminal of the voltage doubler rectification unit 4. In another embodiment of the present application, as shown in FIG. 2, the voltage stabilization unit includes a voltage stabilization chip 13 and a fifth capacitor C5. The input end of the voltage stabilization chip 13 is connected to the fourth capacitor C4, the output end of the voltage stabilization chip 13 is connected to one end of the fifth capacitor C5, and the grounding end of the voltage stabilization chip 13 is grounded. The other end of the fifth capacitor C5 is grounded. Specifically, in one embodiment, the current input end of the voltage stabilization chip 13 is connected to the current output end of the voltage doubler rectification unit 4 and is used to receive current. The current output end of the voltage stabilization chip 13 is connected to the positive electrode of the fifth capacitor C5, and the grounding end is grounded. The negative electrode of the fifth capacitor C5 is grounded. The voltage stabilization chip 13 and the fifth capacitor C5 form a voltage stabilization circuit to adjust the voltage value, which is convenient for controlling the input power of the monitoring device. The monitoring device is in a working state of rated electrical energy, is not easily damaged, and has a more stable working state. In another embodiment of the present application, as shown in FIG. 2, a voltage drop detection module 7 is connected in parallel to the voltage doubler rectification unit 4. The voltage drop detection module 7 is configured to determine whether the voltage of the electrical energy output from the voltage doubler rectification unit 4 matches a preset target voltage. In another embodiment of the present application, as shown in FIG. 2, the voltage stabilization unit includes a voltage stabilization chip 13 and a fifth capacitor C5. The input end of the voltage stabilization chip 13 is connected to the fourth capacitor C4, the output end of the voltage stabilization chip 13 is connected to one end of the fifth capacitor C5, and the grounding end of the voltage stabilization chip 13 is grounded. The other end of the fifth capacitor C5 is grounded. Specifically, in one embodiment, the current input end of the voltage stabilization chip 13 is connected to the current output end of the voltage doubler rectification unit 4 and is used to receive current. The current output end of the voltage stabilization chip 13 is connected to the positive electrode of the fifth capacitor C5, and the grounding end is grounded. The negative electrode of the fifth capacitor C5 is grounded. The voltage stabilization chip 13 and the fifth capacitor C5 form a voltage stabilization circuit to adjust the voltage value, which is convenient for controlling the input power of the monitoring device. The monitoring device is in a working state of rated electrical energy, is not easily damaged, and has a more stable working state. In another embodiment of the present application, as shown in FIG. 2, a voltage drop detection module 7 is connected in parallel to the voltage doubler rectification unit 4. The voltage drop detection module 7 is configured to determine whether the voltage of the electrical energy output from the voltage doubler rectification unit 4 matches a preset target voltage. Specifically, in one embodiment, the current input end of the voltage stabilization chip 13 is connected to the current output end of the voltage doubler rectification unit 4 and is used to receive current. The current output end of the voltage stabilization chip 13 is connected to the positive electrode of the fifth capacitor C5, and the grounding end is grounded. The negative electrode of the fifth capacitor C5 is grounded. The voltage stabilization chip 13 and the fifth capacitor C5 form a voltage stabilization circuit to adjust the voltage value, which is convenient for controlling the input power of the monitoring device. The monitoring device is in a working state of rated electrical energy, is not easily damaged, and has a more stable working state. In another embodiment of the present application, as shown in FIG. 2, a voltage drop detection module 7 is connected in parallel to the voltage doubler rectification unit 4. The voltage drop detection module 7 is configured to determine whether the voltage of the electrical energy output from the voltage doubler rectification unit 4 matches a preset target voltage. Specifically, in one embodiment, the current input end of the voltage stabilization chip 13 is connected to the current output end of the voltage doubler rectification unit 4 and is used to receive current. The current output end of the voltage stabilization chip 13 is connected to the positive electrode of the fifth capacitor C5, and the grounding end is grounded. The negative electrode of the fifth capacitor C5 is grounded. The voltage stabilization chip 13 and the fifth capacitor C5 form a voltage stabilization circuit to adjust the voltage value, which is convenient for controlling the input power of the monitoring device. The monitoring device is in a working state of rated electrical energy, is not easily damaged, and has a more stable working state. In another embodiment of the present application, as shown in FIG. 2, a voltage drop detection module 7 is connected in parallel to the voltage doubler rectification unit 4. The voltage drop detection module 7 is configured to determine whether the voltage of the electrical energy output from the voltage doubler rectification unit 4 matches a preset target voltage. Specifically, in one embodiment, the current input end of the voltage stabilization chip 13 is connected to the current output end of the voltage doubler rectification unit 4 and is used to receive current. The current output end of the voltage stabilization chip 13 is connected to the positive electrode of the fifth capacitor C5, and the grounding end is grounded. The negative electrode of the fifth capacitor C5 is grounded. The voltage stabilization chip 13 and the fifth capacitor C5 form a voltage stabilization circuit to adjust the voltage value, which is convenient for controlling the input power of the monitoring device. The monitoring device is in a working state of rated electrical energy, is not easily damaged, and has a more stable working state. In another embodiment of the present application, as shown in FIG. 2, a voltage drop detection module 7 is connected in parallel to the voltage doubler rectification unit 4. The voltage drop detection module 7 is configured to determine whether the voltage of the electrical energy output from the voltage doubler rectification unit 4 matches a preset target voltage. Specifically, in one embodiment, the current input end of the voltage stabilization chip 13 is connected to the current output end of the voltage doubler rectification unit 4 and is used to receive current. The current output end of the voltage stabilization chip 13 is connected to the positive electrode of the fifth capacitor C5, and the grounding end is grounded. The negative electrode of the fifth capacitor C5 is grounded. The voltage stabilization chip 13 and the fifth capacitor C5 form a voltage stabilization circuit to adjust the voltage value, which is convenient for controlling the input power of the monitoring device. The monitoring device is in a working state of rated electrical energy, is not easily damaged, and has a more stable working state. It is used to detect whether there is a match. If there is no match, an alarm is issued. Specifically, in one embodiment, the current input terminal of the voltage drop detection module 7 is connected to the current output terminal of the voltage multiplier rectification unit 4. The current output terminal of the voltage drop detection module 7 is connected to an alarm assembly . When the voltage output from the voltage multiplier rectification unit 4 is smaller than the target voltage , the current or voltage output from the voltage drop detection module 7 is smaller than the detection value of the alarm assembly , triggering the alarm of the alarm assembly. When the voltage of the electrical energy output from the voltage multiplier rectification unit 4 is equal to or higher than the target voltage , the current or voltage output from the voltage drop detection module 7 is equal to or higher than the detection value of the alarm assembly, so the alarm is not triggered . The voltage drop detection module 7 for detecting the voltage value is set to detect voltage abnormalities in a timely manner, thereby adjusting the energy capture module 1 or compensating the voltage. The monitoring device ensures a normal electrical energy supply. In another embodiment of the present application, as shown in FIG. 2, a voltage drop power supply module 6 is connected to the voltage drop detection module 7. The voltage drop power supply module 6 is connected in parallel to the monitoring device , and the voltage drop power supply module 6 is used to supply power to the monitoring device when the voltage detected by the voltage drop detection module 7 does not match the target voltage . Specifically, in one embodiment, the current input terminal of the voltage drop power supply module 6 is connected to the current output terminal of the voltage stabilization module 5. When the power supplied to the monitoring device has not reached the preset electrical energy , the voltage drop power supply module 6 outputs electrical energy to the monitoring device .

[0007] In another embodiment of the present application, as shown in FIG. 2, the voltage drop power supply module 6 includes a first resistor R1, a DC power supply 18, a third diode D3, and a field effect transistor Q3. The DC power supply 18 is connected to the drain of the field effect transistor Q3, and one end of the first resistor R1 is connected to the gate of the field effect transistor Q3, the other end of the first resistor R1 is grounded, the anode of the third diode D3 is connected to the gate of the field effect transistor Q3, and the cathode is connected to the input end of the monitoring device, and the source of the field effect transistor Q3 is connected to the output end of the monitoring device. In another embodiment of the present application, as shown in FIG. 2, the voltage drop detection module includes a second resistor R2, a third resistor R3, a fourth diode D4, a sixth capacitor C6, a fourth resistor R4, a first transistor Q1, a fifth resistor R5, and a second transistor Q2. The second resistor R2 is connected in series with the third resistor R3, and the second resistor R2 is connected in parallel with the fourth diode D4 and the sixth capacitor C6. The base of the first transistor Q1 is connected to one end of the fourth resistor R4, the emitter is connected to the cathode of the fourth diode D4 and one end of the above-mentioned sixth capacitor C6, the collector is connected to the fifth resistor R5, and the base of the second transistor Q2 is connected to the other end of the fifth resistor R5, the emitter is grounded and the collector is connected to the output end of the voltage drop detection module. Specifically, in one embodiment, one end of the second resistor R2 is connected to the current input end of the voltage drop detection module 7, and the other end of the second resistor R2 is connected to one end of the third resistor R3 and the positive electrode of the fourth diode D4 respectively. The other end of the third resistor R3 is grounded. The negative electrode of the fourth diode D4 is connected to one end of the sixth capacitor C6 and the emitter of the first transistor Q1 respectively . The other end of the sixth capacitor C6 is grounded. The base of the first transistor Q1 is connected to one end of the fourth resistor R4, and the other end of the fourth resistor R4 is connected to the negative terminal of the voltage drop detection module 7. The collector of the first transistor Q1 is the connected to one end of the fifth resistor R5. The other end of the fifth resistor R5 is connected to the base of the second transistor Q2. The emitter of the second transistor Q 2 is grounded, and the collector is connected to the current output terminal Out put of the voltage drop detection module 7.

[0008] Throughout the specification, references to "one embodiment" or "one implementation form" mean that specific features, structures, or characteristics related to the embodiment are included in at least one embodiment of the present invention. It should be understood that. Therefore, the various places where "in one embodiment" or "in one implementation form" appear throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any appropriate way in one or more embodiments. In each embodiment of the present invention, the numbers of the above steps do not mean the execution order, and the execution order of each step should be determined by its function and inherent logic without constituting a limitation on the implementation process of the embodiments of the present invention. It should be understood that. The numbers of the embodiments of the present invention above are for the purpose of explanation and do not represent the merits of the embodiments. In addition, in this specification, the terms "comprising", "including" or other variations are intended to inclusively include non-exclusively, and a process, method, article or device including a series of elements includes not only those elements but also other elements not expressly listed or inherent to such process, method, article or device. It should be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or intervening elements may be present. Furthermore, the terms "first", "second", etc. are used herein only to distinguish one element from another and do not denote any order or importance. It should be understood that the numbers of the embodiments of the present invention above are for the purpose of explanation and do not represent the merits of the embodiments. In addition, in this specification, the terms "comprising", "including" or other variations are intended to inclusively include non-exclusively, and a process, method, article or device including a series of elements includes not only those elements but also , other elements not explicitly listed, or elements specific to those processes, methods, articles or apparatuses, should also be noted. Unless further limited, elements defined by the expression "comprising one..." do not exclude the presence of other same elements in the process, method, article or apparatus comprising that element. It should be understood that in some embodiments provided by the present invention, the disclosed apparatuses and methods can be implemented in other ways. The embodiments of the apparatuses described above are merely schematic, for example, the division of the said units is merely a logical functional division, and in actual implementation it may be divided in other ways. For example, a plurality of units or assemblies may be combined, or integrated into another system, or some features may be ignored or not executed. Further, each component illustrated or described may be combined with each other, or directly combined, or the communication connection may be an indirect connection or a communicable connection between some interfaces, apparatuses or units, which may be electrical, mechanical or other connections. The units described as the above-separated components may or may not be physically separated. The components illustrated as units may or may not be physical units. They may be arranged at a single location, or dispersed among a plurality of network units. Actually, according to the requirements, some or all of these units may be selected to achieve the purpose of the solution of this embodiment. Furthermore, each functional unit in each embodiment of the present invention may be completely integrated into a single processing unit, or each unit may be a separate unit by itself, or two or more units It should be understood that in some embodiments provided by the present invention, the disclosed apparatuses and methods can be implemented in other ways. The embodiments of the apparatuses described above are merely schematic, for example, the division of the said units is merely a logical functional division, and in actual implementation it may be divided in other ways. For example, a plurality of units or assemblies may be combined, or integrated into another system, or some features may be ignored or not executed. Further, each component illustrated or described may be combined with each other, or directly combined, or the communication connection may be an indirect connection or a communicable connection between some interfaces, apparatuses or units, which may be electrical, mechanical or other connections. The units described as the above-separated components may or may not be physically separated. The components illustrated as units may or may not be physical units. They may be arranged at a single location, or dispersed among a plurality of network units. Actually, according to the requirements, some or all of these units may be selected to achieve the purpose of the solution of this embodiment. Furthermore, each functional unit in each embodiment of the present invention may be completely integrated into a single processing unit, or each unit may be a separate unit by itself, or two or more units It should be understood that in some embodiments provided by the present invention, the disclosed apparatuses and methods can be implemented in other ways. The embodiments of the apparatuses described above are merely schematic, for example, the division of the said units is merely a logical functional division, and in actual implementation it may be divided in other ways. For example, a plurality of units or assemblies may be combined, or integrated into another system, or some features may be ignored or not executed. Further, each component illustrated or described may be combined with each other, or directly combined, or the communication connection may be an indirect connection or a communicable connection between some interfaces, apparatuses or units, which may be electrical, mechanical or other connections. The units described as the above-separated components may or may not be physically separated. The components illustrated as units may or may not be physical units. They may be arranged at a single location, or dispersed among a plurality of network units. Actually, according to the requirements, some or all of these units may be selected to achieve the purpose of the solution of this embodiment. Furthermore, each functional unit in each embodiment of the present invention may be completely integrated into a single processing unit, or each unit may be a separate unit by itself, or two or more units It should be understood that in some embodiments provided by the present invention, the disclosed apparatuses and methods can be implemented in other ways. The embodiments of the apparatuses described above are merely schematic, for example, the division of the said units is merely a logical functional division, and in actual implementation it may be divided in other ways. For example, a plurality of units or assemblies may be combined, or integrated into another system, or some features may be ignored or not executed. Further, each component illustrated or described may be combined with each other, or directly combined, or the communication connection may be an indirect connection or a communicable connection between some interfaces, apparatuses or units, which may be electrical, mechanical or other connections. The units described as the above-separated components may or may not be physically separated. The components illustrated as units may or may not be physical units. They may be arranged at a single location, or dispersed among a plurality of network units. Actually, according to the requirements, some or all of these units may be selected to achieve the purpose of the solution of this embodiment. It may be integrated into one unit as a unit, and the integrated unit may be realized in hardware and may also be realized by combining hardware and software functional units. For those skilled in the art, all or some of the steps of the above method embodiments may be achieved by hardware related to program instructions. The program may be stored in a computer-readable storage medium, and when this program is executed, the steps of the above method embodiments are executed. The storage medium includes various media capable of storing program codes such as portable storage devices, ROMs, magnetic disks, or optical disks. Alternatively, if the integrated unit of the present invention is realized as a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of the present invention, in essence, or the part that contributes to the prior art may be embodied as a software product. The computer software product is stored in a storage medium and includes several instructions to cause a device to execute all or part of the methods described in each embodiment of the present invention. The storage medium includes various media capable of storing program codes such as portable storage devices, ROMs, magnetic disks, or optical disks. The above disclosure is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Equivalent changes made according to the scope of the claims of the present invention are still included in the protection scope of the present invention. The above disclosure is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Equivalent changes made according to the scope of the claims of the present invention are still included in the protection scope of the present invention. The above disclosure is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Equivalent changes made according to the scope of the claims of the present invention are still included in the protection scope of the present invention. The above disclosure is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Equivalent changes made according to the scope of the claims of the present invention are still included in the protection scope of the present invention. The above disclosure is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Equivalent changes made according to the scope of the claims of the present invention are still included in the protection scope of the present invention. The above disclosure is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Equivalent changes made according to the scope of the claims of the present invention are still included in the protection scope of the present invention. The above disclosure is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Equivalent changes made according to the scope of the claims of the present invention are still included in the protection scope of the present invention. shall be.

Claims

1. Comprising an energy capture module, a power conversion module, and a parameter adjustment module 、 The energy capture end of the energy capture module wraps around the power transmission line, and the output end is connected to the power conversion module, and is used to obtain electrical energy in the power transmission line, The output end of the power conversion module is connected to the parameter adjustment module, and is used to convert the obtained electrical energy into electrical energy within the rated voltage range of the monitoring device, The output end of the parameter adjustment module is connected to the input end of the monitoring device, and is used to adjust the parameters of the obtained electrical energy and transmit it to the monitoring device, The voltage doubling rectification unit includes a first diode D1, a second diode D2, a third capacitor C 3 and a fourth capacitor C4, The first diode D1 is connected in series to the third capacitor C3, The second diode D2 is connected in series to the fourth capacitor C4, The series circuit of the first diode D1 and the third capacitor C3 is connected in parallel with the series circuit of the second diode D2 and the fourth capacitor C4, The voltage stabilization unit includes a voltage stabilization chip and a fifth capacitor C5, The input end of the voltage stabilization chip is connected to the fourth capacitor C4, the output end of the voltage stabilization chip is connected to one end of the fifth capacitor C5, and the ground end of the voltage stabilization chip is grounded, The other end of the fifth capacitor C5 is grounded, A voltage drop detection module is connected in parallel to the voltage doubling rectification unit, The voltage drop detection module is used to detect whether the voltage of the electrical energy output from the voltage doubling rectification unit matches a preset target voltage, If they do not match, an alarm is issued, A voltage drop power supply module is connected to the voltage drop detection module, The voltage drop power supply module is connected in parallel to the monitoring device, The voltage drop power supply module is used to supply power to the monitoring device when the voltage detected by the voltage drop detection module does not match the target voltage, The voltage drop power supply module includes a first resistor R1, a DC power supply, a third diode D3, and a field effect transistor Q3, The DC power supply is connected to the drain of the field effect transistor Q3, and the first resistor R1 ​ ​ ​ One end of which is connected to the gate of the field effect transistor Q3, and the other end of the first resistor R1 is grounded, The anode of the third diode D3 is connected to the gate of the field effect transistor Q3 , and the cathode is connected to the input end of the monitoring device, The source of the field effect transistor Q3 is connected to the output end of the monitoring device, The voltage drop detection module includes a second resistor R2, a third resistor R3, a fourth diode D4, a sixth capacitor C6, a fourth resistor R4, a first transistor Q1, a fifth resistor R5 and a second dra n transistor Q2, The second resistor R2 is connected in series to the third resistor R3, and the second resistor R2 is connected in parallel to the fourth di ode D4 and the sixth capacitor C6, The base of the first transistor Q1 is connected to one end of the fourth resistor R4, and the emitter is to the cathode of the fourth diode D4 and one end of the sixth capacitor C6, and the colle ctor is connected to the fifth resistor R5, The base of the second transistor Q2 is connected to the other end of the fifth resistor R5, and the emitter is connected to ground, and the collector is connected to the output end of the voltage drop detection module, The parameter adjustment module includes the voltage multiplier rectification unit and the voltage stabilization unit , The input end of the voltage multiplier rectification unit is connected to the output end of the power conversion module, and the output end of the voltage multiplier rectification unit is connected to the input end of the voltage stabilization unit, and is used to increase and / or convert the obtained electrical energy, The output end of the voltage stabilization unit is connected to the input end of the monitoring device, and is used to stabilize the obtained electrical en ergy, A power supply device for a transmission line monitoring device, characterized in that.

2. The power conversion module includes a high-frequency transformer, The energy capture module includes a first capacitor C1 and a pulse discharge unit, The first capacitor C1 wraps the transmission line, and the output end of the first capacitor C1 is connected to the input end of the pa ulse discharge unit, The input end of the pulse discharge unit is connected to one end of the high-frequency transformer, and the output end of the pulse discharge unit and the other end of the high-frequency transformer are grounded. The power supply device for a transmission line monitoring device according to claim 1.

3. The pulse discharge unit is a second capacitor C2, One end of the second capacitor C2 is connected to the high-frequency transformer, and the other end of the second capacitor C2 is grounded. The power supply device for the transmission line monitoring device according to claim 2, characterized in that.

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