Self-regulating capacitor power supply system

Abstract

The present application relates to a self-regulating capacitor power supply system. The self-regulating capacitor power supply system converts the energy in the distribution network line into corresponding electrical energy through the energy-taking capacitor and the energy-taking transformer through the coordinated action of the energy-taking capacitor, the energy-taking transformer and the power management module, and supplies power to the connected load through the power management module, wherein the power management module can be regulated according to the actual electrical signal loaded to the load so that the actual electrical signal is stabilized within a preset range, thereby achieving the matching of the input of the self-regulating capacitor power supply system with the load.

Description

Technical Field

[0001] The present application relates to the field of capacitor power supply technology, and in particular to a self-regulating capacitor power supply system. Background Art

[0002] Capacitive energy harvesting technology has been widely used in the high voltage field. Capacitive energy harvesting technology uses high voltage capacitors, does not need to rely on ferromagnetic devices or equipment to convert electrical energy, and also has ferromagnetic resonance capabilities. However, during the charging and discharging process, the power supply system with this capacitive energy harvesting technology will experience voltage fluctuations due to changes in the load, resulting in a mismatch with the output of the power supply system. Summary of the invention

[0003] Based on this, it is necessary to provide a self-regulating capacitor power supply system that can match the connected load.

[0004] A self-regulating capacitor power supply system is provided, comprising:

[0005] An energy-collecting capacitor, one end of which is used to connect to a power distribution network line;

[0006] An energy taking transformer, wherein the primary side of the energy taking transformer is connected to the other end of the energy taking capacitor;

[0007] A power management module, wherein the input end of the power management module is connected to the secondary side of the energy taking transformer, and the output end and the detection end of the power management module are respectively used to connect to the load; the power management module is used to obtain the actual electrical signal loaded to the load, and regulate the output electrical signal according to the actual electrical signal so that the actual electrical signal is stabilized within a preset range, and the preset range is a range determined based on the minimum starting voltage of the load and the maximum voltage that can be tolerated.

[0008] In one embodiment, the power management module includes:

[0009] A bidirectional thyristor, wherein a first end and a second end of the bidirectional thyristor are respectively connected to the secondary side of the energy extraction transformer;

[0010] A rectifier module, wherein two input terminals of the rectifier module are respectively connected to the first terminal and the second terminal of the bidirectional thyristor, the output terminal of the rectifier module is used to connect to the load, and the ground terminal of the rectifier module is grounded;

[0011] A photocoupler, wherein a first output end of the photocoupler is connected to a first end of a bidirectional thyristor, and a second output end of the photocoupler is connected to a third end of the bidirectional thyristor;

[0012] A voltage regulator tube, the anode of which is connected to the first input terminal of the photoelectric coupler and connected to the ground terminal of the rectifier module via the photoelectric coupler, and the cathode of which is used to connect to the load; the breakdown threshold of the voltage regulator tube is equal to the upper limit value of the preset range.

[0013] In one embodiment, the power management module further includes:

[0014] A feedback control unit, wherein the detection end of the feedback control unit is used to connect to the load, and the feedback control unit is used to obtain the electrical signal input to the load, and output an enable signal when the electrical signal is less than the lower limit value of a preset range;

[0015] A power control unit is connected to the output end of the rectifier module, and a controlled end of the power control unit is connected to a feedback end of the feedback control unit. The power control unit is used to increase the electrical signal output to the load according to an enable signal.

[0016] In one embodiment, the power management module further includes:

[0017] A filter module, wherein the input end of the filter module is connected to the secondary side of the energy taking transformer, and the output end of the filter module is respectively connected to the first end and the second end of the bidirectional thyristor.

[0018] In one embodiment, the power management module further includes:

[0019] An isolation transformer, wherein the primary side of the isolation transformer is connected to the output end of the power control unit;

[0020] A rectifier and filter module, wherein the input end of the rectifier and filter module is connected to the secondary side of the isolation transformer, and the output end of the rectifier and filter module is used to connect to the load;

[0021] The power control unit is also used to convert the output signal of the rectifier module into an alternating current signal.

[0022] In one embodiment, the self-regulating capacitor power supply system further includes:

[0023] Energy storage module, the input end of the energy storage module is connected to the output end of the power management module, and the output end of the energy storage module is used to connect to the load.

[0024] In one embodiment, the energy storage module comprises:

[0025] A battery, wherein the input end of the battery is connected to a power management module;

[0026] A diode, the anode of which is connected to the output terminal of the battery;

[0027] Supercapacitor, the charging and discharging ends of the supercapacitor are connected to the cathode of the diode and the load respectively.

[0028] In one embodiment, the self-regulating capacitor power supply system further includes:

[0029] A protection module is connected in parallel with the primary side of the energy taking transformer, and is used to clamp the primary side voltage of the energy taking transformer within a preset voltage range.

[0030] In one embodiment, the protection module includes a varistor.

[0031] In one embodiment, the power management module further includes:

[0032] The sampling control module is connected to the cathode of the voltage regulator tube, and the sampling end of the sampling control module is used to connect the load; the sampling control module is used to monitor the actual electrical signal loaded to the load, and when the actual electrical signal is greater than or equal to a preset conduction threshold and shows an upward trend, the path between the voltage regulator tube and the load is turned on; when the actual electrical signal is less than the preset conduction threshold, the path between the voltage regulator tube and the load is cut off.

[0033] The above-mentioned self-regulating capacitor power supply system, through the coordinated action of the energy-taking capacitor, the energy-taking transformer and the power management module, converts the energy in the distribution network line into corresponding electrical energy through the energy-taking capacitor and the energy-taking transformer, and supplies power to the connected load through the power management module, wherein the power management module can be regulated according to the actual electrical signal loaded to the load so that the actual electrical signal is stabilized within a preset range, thereby achieving matching between the input and the load of the self-regulating capacitor power supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 This is one of the structural block diagrams of a self-regulating capacitor power supply system according to an embodiment;

[0036] Figure 2 One of the structural block diagrams of a power management module according to an embodiment;

[0037] Figure 3 This is a second structural block diagram of a power management module according to an embodiment;

[0038] Figure 4 This is the second structural block diagram of a self-regulating capacitor power supply system according to an embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0041] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0042] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0043] In one embodiment, Figure 1 As shown, a self-regulating capacitor power supply system 10 is provided, including: an energy-taking capacitor 100 , an energy-taking transformer 200 and a power management module 300 .

[0044] Among them, one end of the energy-collecting capacitor is used to connect the distribution network line 20. The energy-collecting capacitor can smooth the fluctuations in the distribution network line and reduce the voltage mutation and fluctuation of the distribution network line. When accessing renewable energy such as wind energy and solar energy, the energy-collecting capacitor can also effectively balance the power generation fluctuations caused by weather changes, thereby improving the reliability of the distribution network power supply. Among them, the distribution network line can be a 10kV distribution network line.

[0045] The primary side of the energy-taking transformer is connected to the other end of the energy-taking capacitor. The energy-taking transformer transfers the energy in the energy-taking capacitor to the subsequent circuit, thereby supplying power to the load of the self-regulating capacitor power supply system.

[0046] The input end of the power management module is connected to the secondary side of the energy-taking transformer, and the output end and the detection end of the power management module are respectively used to connect to the load 30; the power management module is used to obtain the actual electrical signal loaded to the load, and regulate the output electrical signal according to the actual electrical signal, so that the actual electrical signal is stable within a preset range, and the preset range is a range determined based on the minimum starting voltage of the load and the maximum voltage that can be tolerated. Among them, the above-mentioned actual electrical signal can be a voltage, and correspondingly, the power management module can regulate the output voltage signal according to the actual voltage loaded to the load, so that the actual voltage is stable within a preset voltage range, so that the self-regulating capacitor power supply system outputs a stable power corresponding to the preset voltage range. Exemplarily, the preset voltage range can be 24V-20V. The above-mentioned actual electrical signal can also be an electrical signal of the type of current, power, etc. When the actual electrical signal is an electrical signal of the type of current, power, etc., it is similar to the case when the actual electrical signal is a voltage, and will not be repeated here.

[0047] The power management module regulates the actual electrical signal according to the actual electrical signal loaded to the load and the preset range. Specifically, when the actual electrical signal loaded to the load is less than the lowest value of the preset range, or the actual electrical signal loaded to the load is greater than the highest value of the preset range, the power management module regulates so that the actual electrical signal loaded to the load is greater than or equal to the lowest value of the preset range, and less than or equal to the highest value of the preset range. Therefore, when the load connected to the self-regulating capacitor power supply system changes, the power management module can regulate according to the actual electrical signal loaded to the load, so that the output of the self-regulating capacitor power supply system matches the load, avoiding problems such as poor electrical signal matching and low efficiency due to load changes, and achieving efficient and stable power output of the self-regulating capacitor power supply system.

[0048] The above-mentioned self-regulating capacitor power supply system, through the coordinated action of the energy-taking capacitor, the energy-taking transformer and the power management module, converts the energy in the distribution network line into corresponding electrical energy through the energy-taking capacitor and the energy-taking transformer, and supplies power to the connected load through the power management module, wherein the power management module can be regulated according to the actual electrical signal loaded to the load so that the actual electrical signal is stabilized within a preset range, thereby achieving matching between the input and the load of the self-regulating capacitor power supply system.

[0049] In one embodiment, Figure 2 As shown, the power management module includes: a bidirectional thyristor 302 , a rectifier module 304 , a photocoupler 306 and a voltage regulator 308 .

[0050] The first end and the second end of the bidirectional thyristor are respectively connected to the secondary side of the energy extraction transformer.

[0051] The two input ends of the rectifier module are respectively connected to the first end and the second end of the bidirectional thyristor, the output end of the rectifier module is used to connect the load, and the ground end of the rectifier module is grounded. The rectifier module is used to rectify the input AC signal into a DC signal and output it to the load.

[0052] The first output end of the photoelectric coupler is connected to the first end of the bidirectional thyristor, and the second output end of the photoelectric coupler is connected to the third end of the bidirectional thyristor.

[0053] The anode of the voltage regulator is connected to the first input terminal of the photoelectric coupler, and is connected to the ground terminal of the rectifier module through the photoelectric coupler. The cathode of the voltage regulator is used to connect the load. The breakdown threshold of the voltage regulator is equal to the upper limit of the preset range.

[0054] Since the cathode of the voltage regulator is connected to the load, when the load is in a state of a lower power level (light load), and the actual electrical signal loaded to the load by the rectifier module is greater than the breakdown threshold of the voltage regulator, the voltage regulator is broken down and turned on. At this time, an electrical signal flows into the first input end of the photoelectric coupler through the voltage regulator, so that the first output end and the second output end of the photoelectric coupler are turned on, and then the bidirectional thyristor is short-circuited. At this time, the short-circuited bidirectional thyristor can unload excess electrical energy. Correspondingly, when the actual electrical signal loaded to the load by the rectifier module is less than or equal to the breakdown threshold of the voltage regulator, the voltage regulator will not be broken down, and the electrical signal will not flow through the voltage regulator, and the voltage regulator -> photoelectric coupler -> bidirectional thyristor will not be turned on, so that the bidirectional thyristor cannot complete the unloading of electrical energy. Therefore, the power management module can discharge electrical energy only when the actual electrical signal loaded to the load is greater than or equal to the breakdown threshold of the voltage regulator, ensuring that the output maximum value of the actual electrical signal is lower than the breakdown threshold of the voltage regulator, thereby avoiding load overload.

[0055] Correspondingly, a suitable voltage regulator is selected so that the breakdown threshold of the voltage regulator is equal to the upper limit of the preset range required by the actual application, so as to obtain a reasonable output. For example, a 30V AC voltage can be input to the power management module to obtain a 30V DC voltage ( Figure 2 Uc) and loaded into the load, and when the output DC voltage is greater than 30V, the voltage regulator tube is broken down and turned on, and the bidirectional thyristor is short-circuited to unload the excess electric energy, so as to realize the self-regulation of the light-load electrical signal.

[0056] In one embodiment, Figure 3 As shown, the power management module further includes: a feedback control unit 310 and a power control unit 312 .

[0057] The detection end of the feedback control unit is used to connect to the load, and the feedback control unit is used to obtain the electrical signal input to the load, and output an enable signal when the electrical signal is less than a lower limit value of a preset range.

[0058] The power control unit is connected to the output end of the rectifier module, and the controlled end of the power control unit is connected to the feedback end of the feedback control unit. The power control unit is used to increase the electrical signal output to the load according to the enable signal.

[0059] Exemplarily, the feedback control unit obtains and compares the voltage input to the load, and when the voltage is less than the voltage corresponding to the lower limit of the preset range (heavy load), it outputs an enable signal to the power control unit, and the power control unit adjusts the output current of the power control unit according to the enable signal, thereby obtaining a larger output voltage corresponding to the output current to increase the voltage input to the load. Specifically, when the output of the rectifier module connected to the power control unit is a DC voltage of 30V, the feedback control unit can be used when the voltage input to the load is less than the DC voltage of 24V ( Figure 3 When the load is low (Uout), the enable signal is output, thereby realizing the self-regulation of heavy-load electrical signals.

[0060] In one embodiment, Figure 2 As shown, the power management module further includes: a filtering module 314 .

[0061] The input end of the filter module is connected to the secondary side of the energy-taking transformer, and the output end of the filter module is connected to the first end and the second end of the bidirectional thyristor, respectively. The filter module can use a common-mode inductor to filter out common-mode interference, and a high-voltage capacitor can be set in the post-stage circuit of the common-mode inductor to absorb instantaneous spike pulse signals, so that the power management module outputs a stable DC signal.

[0062] In one embodiment, Figure 3 As shown, the power management module further includes: an isolation transformer 316 and a rectifier and filter module 318 .

[0063] The primary side of the isolation transformer is connected to the output end of the power control unit. The isolation transformer may be a high-frequency isolation transformer.

[0064] The input end of the rectifier and filter module is connected to the secondary side of the isolation transformer, and the output end of the rectifier and filter module is used to connect to the load.

[0065] The power control unit is also used to convert the output signal of the rectifier module into an alternating current signal.

[0066] The current control unit converts the DC signal output by the rectifier module into an AC signal, and then inputs it into the isolation transformer. The AC signal is then output to the rectifier and filter module through the secondary side of the isolation transformer to obtain the corresponding DC signal, thereby avoiding mutual interference between input and output and achieving isolation between input and output.

[0067] In one embodiment, Figure 4 As shown, the self-regulating capacitor power supply system also includes: an energy storage module 400.

[0068] The input end of the energy storage module is connected to the output end of the power management module, and the output end of the energy storage module is used to connect to the load.

[0069] The energy storage module is used to store the electric energy output by the power management module, and output an electric signal to the load when the power distribution network line is powered off.

[0070] In one embodiment, Figure 4 As shown, the energy storage module includes: a battery 402 , a diode 404 and a super capacitor 406 .

[0071] The input end of the battery is connected to the power management module.

[0072] The anode of the diode is connected to the output terminal of the battery.

[0073] The charging and discharging ends of the supercapacitor are connected to the cathode of the diode and the load respectively.

[0074] The power management module outputs electrical energy to the battery and supercapacitor for storage. In the event of a power outage in the distribution network, the battery serves as a backup power source to power the supercapacitor, providing a long standby time. Since there is a unidirectional conducting diode between the battery and the supercapacitor, the supercapacitor cannot supply power to the battery.

[0075] In the event of a power outage in the distribution network, the above-mentioned supercapacitor can achieve rapid charging and discharging without having to wait for the battery to be fully charged before supplying power to the load, so that the load can be quickly restored to power. Exemplarily, the supercapacitor can achieve rapid charging and discharging within 15 minutes to provide high-power output, thereby driving the operating mechanism (load) to operate. Specifically, in a 10kV circuit breaker, the power required by the corresponding spring operating mechanism is generally around 300W. When the supercapacitor can provide a power of not less than 300W, the spring operating mechanism can drive the corresponding circuit breaker to perform opening and closing operations.

[0076] In one embodiment, Figure 4 As shown, the self-regulating capacitor power supply system also includes a protection module 500 .

[0077] The protection module is connected in parallel with the primary side of the energy taking transformer, and the protection module is used to clamp the primary side voltage of the energy taking transformer within a preset voltage range.

[0078] When lightning strikes, the lightning overvoltage will impact the entire self-regulating capacitor power supply system, causing damage to the internal components in the self-regulating capacitor power supply system. The protection module can clamp the primary side voltage of the energy transformer within a preset voltage range, thereby protecting the entire self-regulating capacitor power supply system. The preset voltage range can be specified based on the performance of each component in the self-regulating capacitor power supply system to ensure the normal operation of these components.

[0079] In one embodiment, the protection module includes a varistor.

[0080] According to the nonlinear characteristics of the varistor, when the primary side voltage of the energy-taking transformer appears between the two poles of the varistor, the varistor can clamp the voltage to a relatively fixed voltage range, thereby realizing the protection of the self-regulating capacitor power supply system.

[0081] Correspondingly, a suitable varistor may be selected according to the preset voltage range so that the voltage range clamped by the varistor is within the preset voltage range.

[0082] In one embodiment, Figure 2 As shown, the power management module further includes: a sampling control module 320 .

[0083] The sampling control module is connected to the cathode of the voltage regulator tube, and the sampling end of the sampling control module is used to connect the load; the sampling control module is used to monitor the actual electrical signal loaded to the load, and when the actual electrical signal is greater than or equal to a preset conduction threshold and shows an upward trend, the path between the voltage regulator tube and the load is turned on; when the actual electrical signal is less than the preset conduction threshold, the path between the voltage regulator tube and the load is cut off.

[0084] The sampling control module is used to monitor the actual electrical signal loaded to the load in real time. When the actual electrical signal is less than or equal to the preset conduction threshold, the path between the voltage regulator and the load is cut off to avoid the instantaneous high-voltage electrical signal of interference nature from breaking through the voltage regulator, so that the bidirectional thyristor is short-circuited, and the reliability of the self-regulating capacitor power supply system is improved; when the actual electrical signal is greater than the preset conduction threshold and the actual electrical signal is on an upward trend, it is considered that the actual electrical signal at this time has the possibility of being higher than the upper limit of the preset range. At this time, the path between the voltage regulator and the load is turned on to wait for the electrical signal higher than the upper limit of the preset range to break through the voltage regulator. Among them, the preset conduction threshold can be determined according to the fluctuation of the electrical signal in the distribution network line and the performance of each device in the self-regulating capacitor power supply system, so as to take into account the reliability and automatic adjustment flexibility of the self-regulating capacitor power supply system.

[0085] In one embodiment, the sampling control module includes a switching device and a sampling module.

[0086] The switch device is connected in series with the sampling module and then connected to the cathode of the voltage regulator tube. The sampling end of the sampling module is used to connect the load, and the control end of the module is connected to the controlled end of the switch module.

[0087] The sampling module is used to monitor the actual electrical signal loaded to the load in real time, and to cut off the switching device when the actual electrical signal is less than or equal to the preset conduction threshold; the sampling module is also used to turn on the switching device when the actual electrical signal is greater than the preset conduction threshold and the actual electrical signal shows an upward trend.

[0088] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic description of the above terms does not necessarily refer to the same embodiment or example.

[0089] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A self-regulating capacitor power supply system, characterized in that: include: An energy-collecting capacitor, one end of which is used to connect to a power distribution network line; An energy extraction transformer, wherein the primary side of the energy extraction transformer is connected to the other end of the energy extraction capacitor; A power management module, wherein the input end of the power management module is connected to the secondary side of the energy extraction transformer, and the output end and the detection end of the power management module are respectively used to connect to the load; the power management module is used to obtain the actual electrical signal loaded to the load, and regulate the output electrical signal according to the actual electrical signal, so that the actual electrical signal is stabilized within a preset range, and the preset range is a range determined based on the minimum starting voltage of the load and the maximum voltage that can be tolerated; The power management module comprises: A bidirectional thyristor, wherein a first end and a second end of the bidirectional thyristor are respectively connected to the secondary side of the energy extraction transformer; A rectifier module, wherein two input ends of the rectifier module are respectively connected to the first end and the second end of the bidirectional thyristor, the output end of the rectifier module is used to connect to a load, and the ground end of the rectifier module is grounded; A photocoupler, wherein a first output end of the photocoupler is connected to a first end of the bidirectional thyristor, and a second output end of the photocoupler is connected to a third end of the bidirectional thyristor; A voltage regulator tube, wherein the anode of the voltage regulator tube is connected to the first input terminal of the photoelectric coupler, so as to be connected to the ground terminal of the rectifier module via the photoelectric coupler, and the cathode of the voltage regulator tube is used to connect to the load; the breakdown threshold of the voltage regulator tube is equal to the upper limit value of the preset range; The power management module also includes: A sampling control module, wherein the sampling control module is connected to the cathode of the voltage regulator tube, and the sampling end of the sampling control module is used to connect the load; the sampling control module is used to monitor the actual electrical signal loaded to the load, and when the actual electrical signal is greater than or equal to a preset conduction threshold and is on an upward trend, conduct the path between the voltage regulator tube and the load; when the actual electrical signal is less than the preset conduction threshold, cut off the path between the voltage regulator tube and the load.

2. The self-regulating capacitor power supply system according to claim 1, characterized in that: The power management module also includes: A feedback control unit, wherein the detection end of the feedback control unit is used to connect to a load, and the feedback control unit is used to obtain an electrical signal input to the load, and output an enable signal when the electrical signal is less than a lower limit value of the preset range; A power control unit, wherein the power control unit is connected to the output end of the rectifier module, and the controlled end of the power control unit is connected to the feedback end of the feedback control unit, and the power control unit is used to increase the electrical signal output to the load according to the enable signal.

3. The self-regulating capacitor power supply system according to claim 1, characterized in that: The power management module also includes: A filter module, wherein the input end of the filter module is connected to the secondary side of the energy extraction transformer, and the output end of the filter module is respectively connected to the first end and the second end of the bidirectional thyristor.

4. The self-regulating capacitor power supply system according to claim 2, characterized in that: The power management module also includes: An isolation transformer, wherein the primary side of the isolation transformer is connected to the output end of the power control unit; A rectifier and filter module, wherein the input end of the rectifier and filter module is connected to the secondary side of the isolation transformer, and the output end of the rectifier and filter module is used to connect to the load; Wherein, the power control unit is further used to convert the output signal of the rectifier module into an alternating current signal.

5. The self-regulating capacitor power supply system according to claim 1, characterized in that: The self-regulating capacitor power supply system also includes: An energy storage module, wherein the input end of the energy storage module is connected to the output end of the power management module, and the output end of the energy storage module is used to connect to a load.

6. The self-regulating capacitor power supply system according to claim 5, characterized in that: The energy storage module includes: A battery, an input end of which is connected to the power management module; a diode, wherein an anode of the diode is connected to an output terminal of the battery; A super capacitor, wherein the charging and discharging ends of the super capacitor are connected to the cathode of the diode and the load respectively.

7. The self-regulating capacitor power supply system according to claim 1, characterized in that: Also includes: A protection module is connected in parallel with the primary side of the energy taking transformer, and is used to clamp the primary side voltage of the energy taking transformer within a preset voltage range.

8. The self-regulating capacitor power supply system according to claim 7, characterized in that: The protection module includes a varistor.

Images