Multi-power-supply complementary power supply system suitable for self-powered device and management method

Abstract

The invention discloses a multi-power-supply complementary power supply system suitable for a self-powered device and a management method, and the system comprises a generation module which connects a plurality of power supplies according to the complementary characteristics of the plurality of power supplies, and generates a management scheme of each power supply according to a connection line; the determination module determines weather factors and electricity demands, and determines power supply limiting elements and power supply demand characteristics according to the weather factors and the electricity demands; the selection module determines an optimal power supply mode based on the power supply limiting factors and the power supply demand characteristics, and selects a target power supply according to the optimal power supply mode; the power supply monitoring module obtains a target management scheme of the target power supply, determines power supply parameters of the target power supply according to the target management scheme, and carries out power supply monitoring on the monitoring device according to the power supply parameters. Various available energy sources can be fully utilized to supply power to the self-powered device, and the uninterrupted working time of the self-powered device is effectively prolonged.

Description

Technical Field

[0001] The present invention relates to the field of power supply technology, and in particular to a multi-power supply complementary power supply system and management method suitable for a self-powered device. Background Art

[0002] At present, with the development of digital technology in power grids, it is necessary to collect the electrical and environmental parameter status of each link such as power generation, transmission, transformation, distribution, and power consumption, and transmit them to smart terminals as a data source for fault analysis and judgment. In the transmission and distribution line link, due to the high transmission voltage level and the lack of conventional power sources such as mains electricity, the monitoring device needs to be self-powered. The usual practice is to use lithium batteries as the power supply for the monitoring device, but the capacity of lithium batteries is limited. After the battery power is exhausted, the monitoring device will lose its original function. Since the line is energized, it is very inconvenient to maintain. There is no stable power supply to ensure long-term operation without power loss, which reduces its practicality and stability. Summary of the invention

[0003] In view of the above problems, the present invention provides a multi-power complementary power supply system and management method suitable for self-powered devices to solve the problem mentioned in the background technology that lithium batteries are used as the power supply of monitoring devices. However, the capacity of lithium batteries is limited. After the battery power is exhausted, the monitoring device will lose its original function. Since the line is energized, it is very inconvenient to maintain. There is no stable power supply to ensure that it can work for a long time without power loss, which reduces the practicality and stability.

[0004] A multi-power complementary power supply system suitable for a self-powered device, characterized in that the system comprises:

[0005] A generation module, used to connect multiple power supplies according to the complementary characteristics between the multiple power supplies, and generate a management plan for each power supply according to the connection line;

[0006] A determination module, used to determine weather factors and electricity demand, and determine power supply restriction factors and power supply demand characteristics according to weather factors and electricity demand;

[0007] A selection module is used to determine the optimal power supply mode based on power supply restriction factors and power supply demand characteristics, and select a target power supply according to the optimal power supply mode;

[0008] The power supply monitoring module is used to obtain a target management plan for a target power supply, determine power supply parameters of the target power supply according to the target management plan, and perform power supply monitoring on the monitoring device according to the power supply parameters.

[0009] Preferably, the generating module comprises:

[0010] The first selection submodule is used to determine the power supply range and power supply load between each power supply, and select the main power supply and the auxiliary power supply according to the power supply range and the power supply load;

[0011] A first determination submodule is used to determine a main service attribute according to the power reserves of the main power supply and the auxiliary power supply, and determine a complementary power supply in the main power supply and the auxiliary power supply according to the main service attribute;

[0012] A second determination submodule is used to obtain a power supply mode of the remaining power supply, and determine a complementary characteristic between the remaining power supply and the complementary power supply according to the power supply mode;

[0013] A connection submodule, used to select an appropriate connection line according to the complementary characteristics and the working characteristics of the remaining power supplies, and connect the multiple power supplies through the connection line;

[0014] The generation submodule is used to determine the working condition parameters and power supply condition parameters of each power supply, and generate a management plan for each power supply according to the working condition parameters and power supply condition parameters.

[0015] Preferably, the determining module includes:

[0016] The third determination submodule is used to obtain the current weather data of the environment where the monitoring device is located, determine the weather state according to the current weather parameters, and determine the weather factors according to the weather state;

[0017] A fourth determination submodule is used to determine the power consumption time distribution, power consumption intensity and power consumption parameters according to the equipment type and historical power consumption data of the monitoring device, and determine the power demand according to the power consumption time distribution, power consumption intensity and power consumption parameters;

[0018] A fifth determination submodule is used to determine power supply process restriction factors, power supply mode restriction factors and power supply period restriction factors according to weather factors and power demand;

[0019] The sixth determination submodule is used to determine the minimum power demand, maximum power demand and power supply time window according to the power supply process restriction factors, power supply mode restriction factors and power supply period restriction factors, and determine the power supply demand characteristics according to the minimum power demand, maximum power demand and power supply time window.

[0020] Preferably, the selection module includes:

[0021] A construction submodule is used to obtain multiple power supply conditions of each power supply mode and power supply description parameters under each power supply condition, and to construct a mathematical model of each power supply mode according to the power supply description parameters;

[0022] An evaluation submodule is used to evaluate the power supply cost, power supply risk and power supply loss dimensions based on power supply constraint factors and power supply demand characteristics through a mathematical model of each power supply mode;

[0023] An acquisition submodule is used to select an optimal power supply mode according to the evaluation result, and to obtain an independent power supply strategy and an integrated power supply strategy of the optimal power supply mode;

[0024] The second selection submodule is used to obtain the power supply efficiency and power supply stability of the independent power supply strategy and the integrated power supply strategy, determine the best power supply strategy according to the power supply efficiency and power supply stability, and select the target power supply according to the best power supply strategy.

[0025] Preferably, the power supply monitoring module includes:

[0026] A seventh determination submodule is used to determine the power supply parameters of the target power supply according to the target management scheme, and obtain the power supply demand parameters of the monitoring device;

[0027] An eighth determination submodule, used to determine a power supply parameter matching degree between the target power supply and the monitoring device according to the power supply provision parameter and the power supply demand parameter;

[0028] A ninth determination submodule, configured to determine an abnormal matching parameter according to the power supply parameter matching degree, and determine a power supply monitoring indicator according to the abnormal matching parameter;

[0029] The monitoring and early warning submodule is used to monitor and warn the process of the target power supply supplying power to the monitoring device based on the power supply monitoring index.

[0030] A multi-power supply complementary power supply management method applicable to a self-powered device comprises the following steps:

[0031] Connecting multiple power supplies according to the complementary characteristics between the multiple power supplies, and generating a management plan for each power supply according to the connection lines;

[0032] Determine weather factors and electricity demand, and determine power supply restriction factors and power supply demand characteristics based on weather factors and electricity demand;

[0033] Determine the optimal power supply mode based on power supply restriction factors and power supply demand characteristics, and select the target power supply according to the optimal power supply mode;

[0034] Obtain a target management plan for the target power supply, determine power supply parameters of the target power supply according to the target management plan, and perform power supply monitoring on the monitoring device according to the power supply parameters.

[0035] Preferably, the method of connecting the multiple power supplies according to the complementary characteristics between the multiple power supplies and generating a management scheme for each power supply according to the connection lines includes:

[0036] Determine the power supply range and power supply load between each power supply, and select the main power supply and auxiliary power supply according to the power supply range and power supply load;

[0037] Determine a primary service attribute according to the power reserves of the primary power supply and the auxiliary power supply, and determine a complementary power supply in the primary power supply and the auxiliary power supply according to the primary service attribute;

[0038] Obtaining a power supply mode of the remaining power supply, and determining a complementary characteristic between the remaining power supply and the complementary power supply according to the power supply mode;

[0039] Selecting appropriate connection lines according to the complementary characteristics and the working characteristics of the remaining power supplies, and connecting the multiple power supplies through the connection lines;

[0040] Determine the working condition parameters and power supply condition parameters of each power supply, and generate a management plan for each power supply according to the working condition parameters and power supply condition parameters.

[0041] Preferably, the determining of weather factors and electricity demand, and determining power supply restriction factors and power supply demand characteristics according to the weather factors and electricity demand, includes:

[0042] Obtain current weather data of the environment where the monitoring device is located, determine weather conditions based on current weather parameters, and determine weather factors based on the weather conditions;

[0043] Determine the power consumption time distribution, power consumption intensity and power consumption parameters according to the equipment type of the monitoring device and the historical power consumption data, and determine the power demand according to the power consumption time distribution, power consumption intensity and power consumption parameters;

[0044] Determine the power supply process constraints, power supply mode constraints and power supply period constraints based on weather factors and power demand;

[0045] The minimum power supply demand, maximum power supply demand and power supply time window are determined according to the power supply process constraint factors, power supply mode constraint factors and power supply period constraint factors, and the power supply demand characteristics are determined according to the minimum power supply demand, maximum power supply demand and power supply time window.

[0046] Preferably, determining the optimal power supply mode based on power supply restriction factors and power supply demand characteristics, and selecting the target power supply according to the optimal power supply mode includes:

[0047] Acquire multiple power supply conditions of each power supply mode and power supply description parameters under each power supply condition, and construct a mathematical model of each power supply mode according to the power supply description parameters;

[0048] The mathematical model of each power supply mode is used to evaluate the power supply cost, power supply risk and power supply loss dimensions based on power supply constraints and power supply demand characteristics;

[0049] Select the optimal power supply method based on the evaluation results, and obtain the independent power supply strategy and integrated power supply strategy of the optimal power supply method;

[0050] The power supply efficiency and power supply stability of the independent power supply strategy and the integrated power supply strategy are obtained, the optimal power supply strategy is determined according to the power supply efficiency and power supply stability, and the target power supply source is selected according to the optimal power supply strategy.

[0051] Preferably, the step of acquiring a target management scheme for a target power supply, determining power supply parameters of the target power supply according to the target management scheme, and performing power supply monitoring on a monitoring device according to the power supply parameters includes:

[0052] Determine the power supply parameters of the target power supply according to the target management plan, and obtain the power supply demand parameters of the monitoring device;

[0053] Determine the power supply parameter matching degree between the target power supply and the monitoring device according to the power supply provision parameters and the power supply demand parameters;

[0054] Determine an abnormal matching parameter according to the matching degree of the power supply parameters, and determine a power supply monitoring indicator according to the abnormal matching parameter;

[0055] Based on the power supply monitoring indicators, the process of the target power supply supplying power to the monitoring device is monitored and early warning is provided.

[0056] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0057] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0059] Figure 1 A schematic diagram of the structure of a multi-power complementary power supply system suitable for a self-powered device provided by the present invention;

[0060] Figure 2 A structural schematic diagram of a determination module in a multi-power complementary power supply system applicable to a self-powered device provided by the present invention;

[0061] Figure 3 A flowchart of a multi-power supply complementary power supply management method applicable to a self-powered device provided by the present invention;

[0062] Figure 4 Another working flow chart of a multi-power supply complementary power supply management method applicable to a self-powered device provided by the present invention. DETAILED DESCRIPTION

[0063] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0064] At present, with the development of digital technology in power grids, it is necessary to collect the electrical and environmental parameter states of various links such as power generation, transmission, transformation, distribution, and power consumption, and transmit them to intelligent terminals as a data source for fault analysis and judgment. In the transmission and distribution line link, due to the high transmission voltage level and the lack of conventional power supplies such as AC power, the monitoring device needs to be self-powered. The usual practice is to use lithium batteries as the power supply for the monitoring device. However, the capacity of lithium batteries is limited. After the battery power is exhausted, the monitoring device will lose its original function. Since the line is energized, it is very inconvenient to maintain. There is no stable power supply to ensure long-term operation without power loss, which reduces the practicality and stability. In order to solve the above problems, the present embodiment discloses a multi-power complementary power supply system suitable for a self-powered device.

[0065] A multi-power complementary power supply system suitable for self-powered devices, such as Figure 1 As shown, the system includes:

[0066] A generating module 101, configured to connect multiple power supplies according to complementary characteristics between the multiple power supplies, and generate a management plan for each power supply according to the connection lines;

[0067] A determination module 102, used to determine weather factors and power demand, and determine power supply restriction factors and power supply demand characteristics according to the weather factors and power demand;

[0068] A selection module 103 is used to determine an optimal power supply mode based on power supply restriction factors and power supply demand characteristics, and select a target power supply source according to the optimal power supply mode;

[0069] The power supply monitoring module 104 is used to obtain a target management scheme for a target power supply, determine power supply parameters of the target power supply according to the target management scheme, and perform power supply monitoring on the monitoring device according to the power supply parameters.

[0070] In this embodiment, the multiple power supplies include: lithium battery, super capacitor, solar cell, rectifier and filter circuit. Among them, the connection relationship of each power supply is: solar cell and electrolytic capacitor are connected in parallel to form a solar power circuit; the power transformer and rectifier and filter circuit are connected in series to form a transformer power circuit; the solar power circuit and the transformer power circuit are connected in parallel through a low voltage drop diode and then connected to the super capacitor to charge the super capacitor, the super capacitor is connected to the input end of the boost chip, the output end of the boost chip and the lithium battery are respectively connected to the two input ends of the analog switch, the power monitoring chip monitors the output voltage of the boost chip, controls the switching of the analog switch, and automatically controls the boost chip and the lithium battery as the output power of VCC according to the boost chip voltage. At the same time, it has four power supplies: transformer power system, solar power supply system, super capacitor and backup lithium battery. The four power supplies have the function of automatic management, which can ensure the stable and reliable operation of the self-powered device under various circumstances. According to the characteristics of solar power supply, the supercapacitor is charged and stored when the lighting conditions are good during the day; the transformer power supply system can store electricity in the supercapacitor through electromagnetic induction during the peak power consumption at night, and supply power to the self-powered device at the same time to offset the disadvantage that the solar cell cannot be powered at night. When both the solar cell and the power supply transformer are unable to supply power, the energy stored in the supercapacitor is consumed first. After the supercapacitor energy is consumed, the backup lithium battery is used for power supply. This management function is completely completed automatically by the circuit hardware and does not require the control of an external controller.

[0071] Among them, the output voltage of the lithium battery is set to 3.6V, the capacity is set to 6000mAh, the supercapacitor voltage is set to 5V, the capacitance is set to 5F, the boost chip uses TPS61070, the power monitoring chip uses ADG849, the analog switch uses ADM6328, and the solar panel is composed of 2 solar panels with an output of 5V and 80mA.

[0072] The working principle of the above technical solution is: first, multiple power supplies are connected through the generation module according to the complementary characteristics between the multiple power supplies, and the management plan of each power supply is generated according to the connection line; secondly, the determination module is used to determine the weather factors and power demand, and the power supply restriction factors and power supply demand characteristics are determined according to the weather factors and power demand; then, the selection module is used to determine the optimal power supply method based on the power supply restriction factors and power supply demand characteristics, and the target power supply is selected according to the optimal power supply method; finally, the power supply monitoring module is used to obtain the target management plan of the target power supply, the power supply parameters of the target power supply are determined according to the target management plan, and the monitoring device is powered on according to the power supply parameters.

[0073] The beneficial effects of the above technical solution are: by combining multiple power supplies to intelligently switch and select power supplies to power and monitor the detection device according to different power supply requirements and power supply environments, various available energy sources can be fully utilized to power the self-powered device, and the impact of factors such as rainy weather without sunshine and power outages on the power supply of the self-powered device is minimized, effectively extending the uninterrupted working time of the self-powered device, and solving the problem of using lithium batteries as the power supply of the monitoring device mentioned in the prior art. However, the capacity of lithium batteries is limited. After the battery power is exhausted, the monitoring device will lose its original function. Since the line is energized, it is very inconvenient to maintain. There is no stable power supply to ensure that it can work long-term without power loss, which reduces the problem of practicality and stability.

[0074] In this embodiment, after generating the management scheme of each power supply, the following is further included:

[0075] Obtain the load density interval parameters and the voltage deviation interval parameters in the power supply area where the monitoring device is located, and construct a power supply demand level classification system for the power supply area according to the load density interval parameters and the voltage deviation interval parameters;

[0076] Determine the power supply quality requirements in different periods of the power supply area through the power supply demand level classification system, and determine the power supply triggering conditions based on the power supply quality requirements;

[0077] Determine the power supply mode in different time periods of the power supply area based on the power supply trigger condition, and determine the extreme working state of the monitoring device in different time periods based on the power supply mode, wherein the extreme working state includes: a high frequency extreme state and a low frequency extreme state;

[0078] Determine the power stability requirements of the monitoring device according to the extreme working conditions of the monitoring device in different time periods;

[0079] Determine the power status index label of the monitoring device in different time periods based on the power stability requirement, and determine the ideal power supply of the monitoring device in different time periods according to the power status index label;

[0080] The management scheme of each power supply is adaptively adjusted according to the ideal power supply of the monitoring device in different time periods.

[0081] The beneficial effects of the above technical solution are: by determining the power supply intensity according to the power supply mode in different time periods in the power supply area where the monitoring device is located, and then determining the working state of the monitoring device to ensure its stable operation, and then adjusting the management plan of each power supply, it is possible to carry out comprehensive intelligent management based on the working conditions of each power supply while ensuring the stable operation of the monitoring device, thereby improving management efficiency and practicality.

[0082] In one embodiment, the generating module comprises:

[0083] The first selection submodule is used to determine the power supply range and power supply load between each power supply, and select the main power supply and the auxiliary power supply according to the power supply range and the power supply load;

[0084] A first determination submodule is used to determine a main service attribute according to the power reserves of the main power supply and the auxiliary power supply, and determine a complementary power supply in the main power supply and the auxiliary power supply according to the main service attribute;

[0085] A second determination submodule is used to obtain a power supply mode of the remaining power supply, and determine a complementary characteristic between the remaining power supply and the complementary power supply according to the power supply mode;

[0086] A connection submodule, used to select an appropriate connection line according to the complementary characteristics and the working characteristics of the remaining power supplies, and connect the multiple power supplies through the connection line;

[0087] The generation submodule is used to determine the working condition parameters and power supply condition parameters of each power supply, and generate a management plan for each power supply according to the working condition parameters and power supply condition parameters.

[0088] The beneficial effects of the above technical solution are: determining the main power supply and auxiliary power supply according to the power supply range and load, determining the complementary power supply in combination with the main service attributes, connecting multiple power supplies to ensure that all power supplies can work correctly and match each other, improving the reliability of power supply, generating a power supply management plan, being able to systematically manage power supply, and improving the power supply efficiency of the power supply.

[0089] In one embodiment, Figure 2 As shown, the determination module 102 includes:

[0090] The third determination submodule 1021 is used to obtain current weather data of the environment where the monitoring device is located, determine the weather state according to the current weather parameters, and determine the weather factors according to the weather state;

[0091] The fourth determination submodule 1022 is used to determine the power consumption time distribution, power consumption intensity and power consumption parameters according to the equipment type and historical power consumption data of the monitoring device, and determine the power demand according to the power consumption time distribution, power consumption intensity and power consumption parameters;

[0092] A fifth determining submodule 1023 is used to determine a power supply process restriction factor, a power supply mode restriction factor, and a power supply period restriction factor according to weather factors and power demand;

[0093] The sixth determination submodule 1024 is used to determine the minimum power demand, the maximum power demand and the power supply time window according to the power supply process restriction factor, the power supply mode restriction factor and the power supply period restriction factor, and determine the power supply demand characteristics according to the minimum power demand, the maximum power demand and the power supply time window.

[0094] The beneficial effects of the above technical solution are: determining the power supply demand characteristics according to the limiting factors of weather factors, power supply mode and power supply time period, and determining weather factors and power demand can better predict and plan power supply. At the same time, a more reasonable and efficient power supply plan can be formulated, thereby reducing energy waste and power loss, and improving the reliability of the power supply system.

[0095] In one embodiment, the selection module includes:

[0096] A construction submodule is used to obtain multiple power supply conditions of each power supply mode and power supply description parameters under each power supply condition, and to construct a mathematical model of each power supply mode according to the power supply description parameters;

[0097] An evaluation submodule is used to evaluate the power supply cost, power supply risk and power supply loss dimensions based on power supply constraint factors and power supply demand characteristics through a mathematical model of each power supply mode;

[0098] An acquisition submodule is used to select an optimal power supply mode according to the evaluation result, and to obtain an independent power supply strategy and an integrated power supply strategy of the optimal power supply mode;

[0099] The second selection submodule is used to obtain the power supply efficiency and power supply stability of the independent power supply strategy and the integrated power supply strategy, determine the best power supply strategy according to the power supply efficiency and power supply stability, and select the target power supply according to the best power supply strategy.

[0100] The beneficial effects of the above technical solution are: based on the power supply limitation factors and power supply demand characteristics and combined with the mathematical model of the power supply mode, the power supply is evaluated in many aspects, the factors affecting the power supply can be accurately discovered, and the power supply effect can be accurately evaluated. Furthermore, the target power supply source is selected according to the independent power supply strategy and the integrated power supply strategy of the optimal power supply mode, which can improve the power supply efficiency and ensure the reliability of power supply.

[0101] In one embodiment, the power supply monitoring module includes:

[0102] A seventh determination submodule is used to determine the power supply parameters of the target power supply according to the target management scheme, and obtain the power supply demand parameters of the monitoring device;

[0103] An eighth determination submodule, used to determine a power supply parameter matching degree between the target power supply and the monitoring device according to the power supply provision parameter and the power supply demand parameter;

[0104] A ninth determination submodule, configured to determine an abnormal matching parameter according to the power supply parameter matching degree, and determine a power supply monitoring indicator according to the abnormal matching parameter;

[0105] The monitoring and early warning submodule is used to monitor and warn the process of the target power supply supplying power to the monitoring device based on the power supply monitoring index.

[0106] The beneficial effects of the above technical solution are: determining the degree of matching of abnormal power supply parameters between the target power supply and the monitoring device according to the power supply provision parameters and the power supply demand parameters, thereby determining the power supply detection index and giving an early warning for the power supply process. Potential problems in the power supply process can be discovered and solved in time to avoid the expansion of the problems. At the same time, the stability of the power supply process is improved to ensure the safety of power supply.

[0107] In one embodiment, this embodiment also discloses a multi-power supply complementary power supply management method applicable to a self-powered device, such as Figure 3 As shown, the following steps are included:

[0108] Step S301: Connect multiple power supplies according to complementary characteristics between the multiple power supplies, and generate a management plan for each power supply according to the connection lines;

[0109] Step S302: determine weather factors and electricity demand, and determine power supply restriction factors and power supply demand characteristics according to the weather factors and electricity demand;

[0110] Step S303: determining an optimal power supply mode based on power supply restriction factors and power supply demand characteristics, and selecting a target power supply source according to the optimal power supply mode;

[0111] Step S304: obtaining a target management scheme for the target power source, determining power supply parameters of the target power source according to the target management scheme, and performing power supply monitoring on the monitoring device according to the power supply parameters.

[0112] The working principle and beneficial effects of the above technical solution have been explained in the system embodiment and will not be repeated here.

[0113] In one embodiment, the method of connecting the multiple power supplies according to the complementary characteristics between the multiple power supplies and generating a management scheme for each power supply according to the connection lines includes:

[0114] Determine the power supply range and power supply load between each power supply, and select the main power supply and auxiliary power supply according to the power supply range and power supply load;

[0115] Determine a primary service attribute according to the power reserves of the primary power supply and the auxiliary power supply, and determine a complementary power supply in the primary power supply and the auxiliary power supply according to the primary service attribute;

[0116] Obtaining a power supply mode of the remaining power supply, and determining a complementary characteristic between the remaining power supply and the complementary power supply according to the power supply mode;

[0117] Selecting appropriate connection lines according to the complementary characteristics and the working characteristics of the remaining power supplies, and connecting the multiple power supplies through the connection lines;

[0118] Determine the working condition parameters and power supply condition parameters of each power supply, and generate a management plan for each power supply according to the working condition parameters and power supply condition parameters.

[0119] In one embodiment, the determining of weather factors and electricity demand, and determining power supply restriction factors and power supply demand characteristics according to the weather factors and electricity demand, includes:

[0120] Obtain current weather data of the environment where the monitoring device is located, determine weather conditions based on current weather parameters, and determine weather factors based on the weather conditions;

[0121] Determine the power consumption time distribution, power consumption intensity and power consumption parameters according to the equipment type of the monitoring device and the historical power consumption data, and determine the power demand according to the power consumption time distribution, power consumption intensity and power consumption parameters;

[0122] Determine the power supply process constraints, power supply mode constraints and power supply period constraints based on weather factors and power demand;

[0123] The minimum power supply demand, maximum power supply demand and power supply time window are determined according to the power supply process constraint factors, power supply mode constraint factors and power supply period constraint factors, and the power supply demand characteristics are determined according to the minimum power supply demand, maximum power supply demand and power supply time window.

[0124] In one embodiment, Figure 4 As shown, the method of determining the optimal power supply mode based on the power supply restriction factor and the power supply demand characteristics, and selecting the target power supply according to the optimal power supply mode includes:

[0125] Step S401: acquiring multiple power supply conditions of each power supply mode and power supply description parameters under each power supply condition, and constructing a mathematical model of each power supply mode according to the power supply description parameters;

[0126] Step S402: Evaluate the power supply cost, power supply risk and power supply loss dimensions based on power supply restriction factors and power supply demand characteristics through a mathematical model of each power supply mode;

[0127] Step S403: Select an optimal power supply mode according to the evaluation result, and obtain an independent power supply strategy and an integrated power supply strategy of the optimal power supply mode;

[0128] Step S404: Obtain the power supply efficiency and power supply stability of each of the independent power supply strategy and the integrated power supply strategy, determine the best power supply strategy according to the power supply efficiency and power supply stability, and select the target power supply source according to the best power supply strategy.

[0129] In one embodiment, the step of acquiring a target management scheme for a target power supply, determining power supply parameters of the target power supply according to the target management scheme, and performing power supply monitoring on a monitoring device according to the power supply parameters includes:

[0130] Determine the power supply parameters of the target power supply according to the target management plan, and obtain the power supply demand parameters of the monitoring device;

[0131] Determine the power supply parameter matching degree between the target power supply and the monitoring device according to the power supply provision parameters and the power supply demand parameters;

[0132] Determine an abnormal matching parameter according to the matching degree of the power supply parameters, and determine a power supply monitoring indicator according to the abnormal matching parameter;

[0133] Based on the power supply monitoring indicators, the process of the target power supply supplying power to the monitoring device is monitored and early warning is provided.

[0134] Those skilled in the art should understand that the first and second in the present invention merely refer to different application stages.

[0135] Other embodiments of the present disclosure will be readily apparent to those skilled in the art after considering the specification and practicing the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0136] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A multi-power complementary power supply system suitable for a self-powered device, characterized in that: The system includes: A generation module, used to connect multiple power supplies according to the complementary characteristics between the multiple power supplies, and generate a management plan for each power supply according to the connection line; A determination module, used to determine weather factors and electricity demand, and determine power supply restriction factors and power supply demand characteristics according to the weather factors and electricity demand; A selection module is used to determine the optimal power supply mode based on power supply restriction factors and power supply demand characteristics, and select a target power supply according to the optimal power supply mode; The power supply monitoring module is used to obtain a target management plan for a target power supply, determine power supply parameters of the target power supply according to the target management plan, and perform power supply monitoring on the monitoring device according to the power supply parameters.

2. The multi-power complementary power supply system suitable for a self-powered device according to claim 1, characterized in that: The generating module comprises: The first selection submodule is used to determine the power supply range and power supply load between the various power supplies, and select the main power supply and the auxiliary power supply according to the power supply range and the power supply load; A first determination submodule is used to determine a main service attribute according to the power reserves of the main power supply and the auxiliary power supply, and determine a complementary power supply in the main power supply and the auxiliary power supply according to the main service attribute; A second determination submodule is used to obtain a power supply mode of the remaining power supply, and determine a complementary characteristic between the remaining power supply and the complementary power supply according to the power supply mode; A connection submodule, used to select an appropriate connection line according to the complementary characteristics and the working characteristics of the remaining power supplies, and connect the multiple power supplies through the connection line; The generation submodule is used to determine the working condition parameters and power supply condition parameters of each power supply, and generate a management plan for each power supply according to the working condition parameters and power supply condition parameters.

3. The multi-power complementary power supply system suitable for a self-powered device according to claim 1, characterized in that: The determining module comprises: The third determination submodule is used to obtain the current weather data of the environment where the monitoring device is located, determine the weather state according to the current weather parameters, and determine the weather factors according to the weather state; A fourth determination submodule is used to determine the power consumption time distribution, power consumption intensity and power consumption parameters according to the equipment type and historical power consumption data of the monitoring device, and determine the power demand according to the power consumption time distribution, power consumption intensity and power consumption parameters; A fifth determination submodule is used to determine power supply process restriction factors, power supply mode restriction factors and power supply period restriction factors according to weather factors and power demand; The sixth determination submodule is used to determine the minimum power demand, maximum power demand and power supply time window according to the power supply process restriction factors, power supply mode restriction factors and power supply period restriction factors, and determine the power supply demand characteristics according to the minimum power demand, maximum power demand and power supply time window.

4. The multi-power complementary power supply system suitable for a self-powered device according to claim 1, characterized in that: The selection module comprises: A construction submodule is used to obtain multiple power supply conditions of each power supply mode and power supply description parameters under each power supply condition, and to construct a mathematical model of each power supply mode according to the power supply description parameters; An evaluation submodule is used to evaluate the power supply cost, power supply risk and power supply loss dimensions based on power supply constraint factors and power supply demand characteristics through a mathematical model of each power supply mode; An acquisition submodule is used to select an optimal power supply mode according to the evaluation result, and to obtain an independent power supply strategy and an integrated power supply strategy of the optimal power supply mode; The second selection submodule is used to obtain the power supply efficiency and power supply stability of the independent power supply strategy and the integrated power supply strategy, determine the best power supply strategy according to the power supply efficiency and power supply stability, and select the target power supply according to the best power supply strategy.

5. The multi-power complementary power supply system suitable for a self-powered device according to claim 1, characterized in that: The power supply monitoring module comprises: A seventh determination submodule is used to determine the power supply parameters of the target power supply according to the target management scheme, and obtain the power supply demand parameters of the monitoring device; An eighth determination submodule, used to determine a power supply parameter matching degree between the target power supply and the monitoring device according to the power supply provision parameter and the power supply demand parameter; A ninth determination submodule, configured to determine an abnormal matching parameter according to the power supply parameter matching degree, and determine a power supply monitoring indicator according to the abnormal matching parameter; The monitoring and early warning submodule is used to monitor and warn the process of the target power supply supplying power to the monitoring device based on the power supply monitoring index.

6. A multi-power supply complementary power supply management method suitable for a self-powered device, characterized in that: The following steps are involved: Connecting multiple power supplies according to the complementary characteristics between the multiple power supplies, and generating a management plan for each power supply according to the connection lines; Determine weather factors and electricity demand, and determine power supply restriction factors and power supply demand characteristics based on weather factors and electricity demand; Determine the optimal power supply mode based on power supply restriction factors and power supply demand characteristics, and select the target power supply according to the optimal power supply mode; Obtain a target management plan for the target power supply, determine power supply parameters of the target power supply according to the target management plan, and perform power supply monitoring on the monitoring device according to the power supply parameters.

7. The multi-power complementary power supply management method applicable to a self-powered device according to claim 6, characterized in that: The method of connecting the multiple power supplies according to the complementary characteristics between the multiple power supplies and generating a management scheme for each power supply according to the connection lines includes: Determine the power supply range and power supply load between each power supply, and select the main power supply and auxiliary power supply according to the power supply range and power supply load; Determine a primary service attribute according to the power reserves of the primary power supply and the auxiliary power supply, and determine a complementary power supply in the primary power supply and the auxiliary power supply according to the primary service attribute; Obtaining a power supply mode of the remaining power supply, and determining a complementary characteristic between the remaining power supply and the complementary power supply according to the power supply mode; Selecting appropriate connection lines according to the complementary characteristics and the working characteristics of the remaining power supplies, and connecting the multiple power supplies through the connection lines; Determine the working condition parameters and power supply condition parameters of each power supply, and generate a management plan for each power supply according to the working condition parameters and power supply condition parameters.

8. The multi-power complementary power supply management method applicable to a self-powered device according to claim 6, characterized in that: The determining of weather factors and electricity demand, and determining power supply restriction factors and power supply demand characteristics according to weather factors and electricity demand, includes: Obtain current weather data of the environment where the monitoring device is located, determine weather conditions based on current weather parameters, and determine weather factors based on the weather conditions; Determine the power consumption time distribution, power consumption intensity and power consumption parameters according to the equipment type of the monitoring device and the historical power consumption data, and determine the power demand according to the power consumption time distribution, power consumption intensity and power consumption parameters; Determine the power supply process constraints, power supply mode constraints and power supply period constraints based on weather factors and power demand; The minimum power supply demand, maximum power supply demand and power supply time window are determined according to the power supply process constraint factors, power supply mode constraint factors and power supply period constraint factors, and the power supply demand characteristics are determined according to the minimum power supply demand, maximum power supply demand and power supply time window.

9. The multi-power complementary power supply management method applicable to a self-powered device according to claim 6, characterized in that: The determining of the optimal power supply mode based on the power supply restriction factor and the power supply demand characteristics, and selecting the target power supply according to the optimal power supply mode, includes: Acquire multiple power supply conditions of each power supply mode and power supply description parameters under each power supply condition, and construct a mathematical model of each power supply mode according to the power supply description parameters; The mathematical model of each power supply mode is used to evaluate the power supply cost, power supply risk and power supply loss dimensions based on power supply constraints and power supply demand characteristics; Select the optimal power supply method based on the evaluation results, and obtain the independent power supply strategy and integrated power supply strategy of the optimal power supply method; The power supply efficiency and power supply stability of the independent power supply strategy and the integrated power supply strategy are obtained, the optimal power supply strategy is determined according to the power supply efficiency and power supply stability, and the target power supply source is selected according to the optimal power supply strategy.

10. The multi-power complementary power supply management method applicable to a self-powered device according to claim 6, characterized in that: The step of obtaining a target management scheme for a target power supply, determining power supply parameters of the target power supply according to the target management scheme, and performing power supply monitoring on a monitoring device according to the power supply parameters includes: Determine the power supply parameters of the target power supply according to the target management plan, and obtain the power supply demand parameters of the monitoring device; Determine the power supply parameter matching degree between the target power supply and the monitoring device according to the power supply provision parameters and the power supply demand parameters; Determine an abnormal matching parameter according to the matching degree of the power supply parameters, and determine a power supply monitoring indicator according to the abnormal matching parameter; Based on the power supply monitoring indicators, the process of the target power supply supplying power to the monitoring device is monitored and early warning is provided.

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