CN112803571B - Portable field operation power supply management method and system used in severe environment - Google Patents

Portable field operation power supply management method and system used in severe environment Download PDF

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Publication number
CN112803571B
CN112803571B CN202011642522.3A CN202011642522A CN112803571B CN 112803571 B CN112803571 B CN 112803571B CN 202011642522 A CN202011642522 A CN 202011642522A CN 112803571 B CN112803571 B CN 112803571B
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China
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module
energy
storage battery
portable field
power supply
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CN202011642522.3A
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CN112803571A (en
Inventor
雷红红
王瑞智
张志刚
肖建军
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Zhengzhou Foguang Power Generation Equipment Co Ltd
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Zhengzhou Foguang Power Generation Equipment Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/00712Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/00714Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/00712Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
    • H02J7/007182Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/007188Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters
    • H02J7/007192Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature
    • H02J7/007194Regulation of charging or discharging current or voltage the charge cycle being controlled or terminated in response to non-electric parameters in response to temperature of the battery
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04Regulation of charging current or voltage
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/32Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/10Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)

Abstract

The invention discloses a portable field operation power supply management method and a portable field operation power supply management system used in a severe environment, wherein the method comprises the following steps: collecting the energy of the individual walking power generation battery, the metal air battery and the flexible thin-film solar battery; the method comprises the steps that collected energy is used for charging a storage battery module, a high-current and low-voltage charging mode is adopted, the emergency switch is used for charging a direct-current load after passing through a direct-current-direct-current conversion module when the emergency switch is not used, and/or the direct-current-alternating-current inversion module is used for charging an alternating-current load, the storage battery module is in a preset temperature range in the charging and discharging process, and when the emergency switch is started, the emergency switch controls a protection module to be switched from on to off and stops charging the load; the system comprises an energy collection system, an energy storage system and an energy management system; the invention can realize the functions of high energy density input, alternating current and direct current output and the like of various energy sources, meet the requirements of long-time power supply and the like in severe environment and fully play the function of single-soldier information equipment.

Description

Portable field operation power supply management method and system used in severe environment
Technical Field
The invention relates to the technical field of portable field power supplies, in particular to a portable field power supply management method and system used in severe environment.
Background
In order to accomplish the task excellently, the soldier needs to carry more and more equipment to rush to the battlefield, wherein most of equipment are individual soldier information equipment and electrical power generating system thereof, under the condition that the army is delivered remotely, the natural condition is abominable, it is difficult to rely on local electric power network and logistics supply difficulty, efficient portable high-energy density field operation electrical power generating system will certainly become the source power of guaranteeing the normal operation of the electronic information system of the operation task team, and the diversification and intellectuality of the field operation electrical power supply will thoroughly change the individual soldier operation mode.
However, the conventional portable field power supply has the following problems; firstly, the existing portable field power supply excessively depends on logistics supply or local electric power, and is difficult to work continuously for a long time in a severe natural environment, so that the fighting capacity of individual soldier operation is reduced to a certain extent; secondly, the output of the existing portable field power supply is limited, and the power utilization diversification requirements cannot be met, for example, the power utilization diversification requirements of equipment such as a laser range finder, a single soldier computer, a satellite phone, a GPS (global positioning system), a Beidou positioning device and a night vision device cannot be fully met; finally, the existing portable field power supply has the problems of strong infrared radiation, poor concealment, high possibility of detection and discovery by enemies, low specific energy, small capacity, low efficiency, limited charging conditions, low safety, large volume, heavy weight and the like, so the existing portable field power supply has weaker battlefield viability.
Therefore, in view of the problems of various limitations, limitation of information-based equipment performance, and the like of the conventional portable field power supply, how to realize long-time operation of the portable field power supply, meet the demand of power utilization diversification, and improve battlefield viability becomes a key point and an effort direction for technicians in the field to pay attention to.
Disclosure of Invention
In order to solve the problems that the existing portable field power supply is difficult to work continuously for a long time, the battlefield viability is weak, the power utilization diversification demand cannot be met and the like, the invention innovatively provides a portable field power supply management method and a portable field power supply management system for severe environments.
In order to achieve the technical purpose, the invention discloses a portable field power supply management method used in severe environment, which comprises the following steps;
step 1, collecting first energy generated by an individual walking power generation battery, second energy generated by a metal air battery and third energy generated by a flexible thin-film solar cell;
step 2, charging a storage battery module in the portable field power supply by using at least one of the first energy, the second energy and the third energy, enabling a real-time charging current to be larger than a preset current value and enabling a real-time charging voltage to be smaller than a preset voltage value in the process of charging the storage battery module, and enabling the storage battery module to be in a preset temperature range through a temperature control module in the portable field power supply;
step 3, judging the real-time working state of an emergency switch in the portable field power supply; if the real-time working state is the stop state, executing the step 4; if the real-time working state is the starting state, executing the step 5;
step 4, enabling the electric energy output by the storage battery module to sequentially pass through a protection module and a direct current-direct current conversion module in the portable field power supply and then charge a direct current load, and/or enabling the electric energy output by the storage battery module to sequentially pass through the protection module and the direct current-alternating current inversion module in the portable field power supply and then charge an alternating current load, enabling the storage battery module to be in a preset temperature range through a temperature control module in the portable field power supply, and then returning to the step 3;
and 5, controlling the state of the protection module to be switched from on to off through the emergency switch, so as to stop the storage battery module of the portable field power supply from charging the load.
Further, in step 2 and/or step 4, a cooling fan in the temperature control module is used for dissipating heat of the storage battery module or a resistance wire or a heating film in the temperature control module is used for heating the storage battery module; the storage battery module provides a working power supply for the temperature control module.
Further, step 1 also includes the step of collecting fourth energy supplied by the commercial power;
the step 2 further comprises the step of charging a storage battery module in the portable field power supply by using at least one of the first energy, the second energy, the third energy and the fourth energy.
Based on the technical scheme, the portable field power supply can meet the requirements of long-time continuous work, various input and output modes and the like of the portable field power supply in a severe environment, and the field power supply processed according to the invention also has the advantages of high energy density, silence, low radiation, small volume, large capacity, light weight and the like, so the portable field power supply can meet the requirements of actual combat and field combat of power supply systems of single soldiers and combat teams, meet the diversified use requirements of equipment power supplies such as multifunctional laser range finders, single soldier computers, satellite phones, GPS, beidou positioning devices and night vision instruments, and provide energy support for improving the fighting capacity of the single soldiers and combat mission teams.
In order to achieve the technical purpose, the invention also discloses a portable field power management system used in the severe environment, which comprises an energy collection system, an energy storage system and an energy management system;
the energy collection system comprises an individual walking power generation battery, a metal air battery, a flexible thin-film solar cell and a charger, and the charger is used for transferring energy collected by the individual walking power generation battery, the metal air battery and the flexible thin-film solar cell to the energy storage system;
the energy storage system comprises a storage battery module, a charging module and a discharging module, wherein the charging module is used for charging the energy transferred by the charger into the storage battery module, the storage battery module is used for storing the energy, and the discharging module is used for outputting the energy stored by the storage battery module;
the energy management system comprises a temperature control module, an emergency switch, a protection module, a direct current-direct current conversion module and a direct current-alternating current inversion module, wherein the protection module is used for transferring the energy output by the discharge module to the direct current-direct current conversion module or the direct current-alternating current inversion module; the temperature control module is used for enabling the storage battery module to work within a preset temperature range, and the emergency switch is used for controlling the storage battery module to stop supplying power to the load after the protection module is disconnected.
Based on the technical scheme, the portable field power supply can meet the requirements of long-time continuous work, various input and output modes and the like of the portable field power supply in a severe environment, and the field power supply processed according to the invention also has the advantages of high energy density, silence, low radiation, small volume, large capacity, light weight and the like, so the portable field power supply can meet the requirements of actual combat and field combat of power supply systems of single soldiers and combat teams, meet the diversified use requirements of equipment power supplies such as multifunctional laser range finders, single soldier computers, satellite phones, GPS, beidou positioning devices and night vision instruments, and provide energy support for improving the fighting capacity of the single soldiers and combat mission teams.
Further, the individual walking power generation battery is used for converting mechanical energy generated by individual walking into electric energy through an internal piezoelectric material, the charger is used for transferring the electric energy to an energy storage system, and the piezoelectric material comprises polyvinylidene fluoride and lead zirconate titanate.
Based on the improved technical scheme, the mechanical energy generated in the individual soldier walking process can be fully recycled, and under the severe natural environment, even if no logistics supply guarantee exists, the power consumption requirement of individual soldier information equipment can be met.
Furthermore, the direct current-alternating current inversion module comprises an inversion bridge, an isolation transformer, a cycle converter and a filter which are cascaded, and an LC series resonant circuit is arranged on the inversion bridge; the inverter bridge is connected with the protection module, and the filter is used for connecting an alternating current load.
Based on the improved technical scheme, through the improvement of the output part (the direct current-alternating current inversion module), the invention also has the outstanding advantages of high electric energy conversion efficiency, high power density and the like, and can better meet the requirement of the portable field power supply in severe environment.
Furthermore, an electrical isolation device is arranged between the direct current-direct current conversion module and the direct current-alternating current inversion module.
Based on the improved technical scheme, the power utilization safety can be greatly improved while diversified output requirements can be met, and the problem of interference generated when different devices are simultaneously powered is avoided, so that the power utilization safety system is higher in reliability and higher in environment adaptability.
Furthermore, the storage battery module is a magnesium-based lithium battery pack, and the energy collecting system also comprises commercial power; the charger is used for transferring the energy of the individual walking power generation battery, the metal air battery, the flexible thin-film solar battery and the mains supply to the magnesium-based lithium battery pack in the energy storage system.
Furthermore, the temperature control module comprises a heat dissipation module and a heating module, the heat dissipation module is a cooling fan, the heating module is a resistance wire or a heating film, and power supplies of the heat dissipation module and the heating module are both the storage battery module.
Further, the protection module comprises a load overcharge protection circuit, a storage battery module overdischarge protection circuit, a short circuit protection circuit and a battery cell balance protection circuit, and is used for protecting the storage battery module, a direct current load and an alternating current load.
The invention has the beneficial effects that: the portable field power supply processed according to the invention has the outstanding advantages of capability of meeting the requirements of various input and output modes, capability of meeting long-time working and carrying requirements, suitability for severe natural environment, strong battlefield viability, small volume, light weight, large capacity, no pollution, good processing consistency, high engineering degree and the like, thereby effectively overcoming the problems of strong infrared radiation, small specific energy, weak battlefield viability and the like of the conventional field power supply.
The invention can better realize the functions of high energy density input, direct current output, alternating current output and the like of various energy sources, meet the requirements of long-time power supply, silence, low radiation, electromagnetic compatibility and the like in severe environment, and further achieve the purposes of fully playing the functions of single-soldier information equipment and the like.
Drawings
FIG. 1 is a flow chart of a portable field power management method for use in harsh environments.
FIG. 2 is a schematic diagram of a portable field operations power management system architecture for use in harsh environments.
FIG. 3 is a schematic diagram of the components of a portable field power management system for use in harsh environments.
Fig. 4 is a block diagram of a direct current-alternating current (DC-AC) inverter module.
Detailed Description
The portable field power management method and system for use in harsh environments according to the present invention will be explained and illustrated in detail with reference to the drawings attached to the specification.
The first embodiment is as follows:
as shown in fig. 1 to 4, in order to solve the problems of the conventional portable field power supply, the present embodiment provides a portable field power supply management method for use in a severe environment, which includes the following steps.
Step 1, collecting first energy generated by an individual walking power generation battery, second energy generated by a metal air battery and third energy generated by a flexible thin-film solar battery. As shown in fig. 2 and 3, step 1 of the present embodiment further includes a step of collecting fourth energy supplied by the utility power; it should be understood that the references to "first energy", "second energy", "third energy" and "fourth energy" in this embodiment all refer to electrical energy or charge.
Step 2, charging the storage battery module in the portable field power supply by using at least one of the first energy, the second energy and the third energy, so as to complete the storage work of the storage battery module in a short time, wherein in the process of charging the storage battery module, the embodiment makes the real-time charging current larger than a preset current value and makes the real-time charging voltage smaller than a preset voltage value, that is, the embodiment adopts a low-voltage high-current charging mode, and the preset current value and the preset voltage value can be reasonably and judiciously set according to actual conditions, for example, the preset current value is 5A and the preset voltage value is 5V; and simultaneously, the temperature control module in the portable field power supply enables the storage battery module to be in a preset temperature range, wherein the preset temperature range can be 0-30 ℃. In step 2 of this embodiment, a cooling fan in the temperature control module is used to dissipate heat of the battery module, or a resistance wire or a heating film in the temperature control module is used to heat the battery module; the storage battery module provides a working power supply for the temperature control module, namely, the storage battery module provides a working power supply for the heating resistance wire, the heating film or the cooling fan. As an improved technical solution, the step 2 may further include a step of charging a battery module in the portable field power supply by using at least one of the first energy, the second energy, the third energy and the fourth energy.
Step 3, judging the real-time working state of an emergency switch in the portable field power supply; if the real-time working state is the stop state, executing the step 4; if the real-time working state is the starting state, step 5 is executed, when a certain system or device has a fault, in order to prevent the fault from further expanding, the emergency switch can be started manually or automatically to stop supplying power to the electric equipment, and the specific process is detailed in step 5.
And 4, enabling the electric energy output by the storage battery module to sequentially pass through the protection module and the direct current-direct current conversion module in the portable field power supply and then charge a direct current load, and/or enabling the electric energy output by the storage battery module to sequentially pass through the protection module and the direct current-alternating current inversion module in the portable field power supply and then charge an alternating current load, enabling the storage battery module to be in a preset temperature range through the temperature control module in the portable field power supply, and then returning to the step 3. In step 4, a cooling fan in the temperature control module is used for radiating heat of the storage battery module or a resistance wire or a heating film in the temperature control module is used for heating the storage battery module, so that the portable field operation power supply can better deal with the problems of efficient charging and discharging of the storage battery in extremely cold field operation weather and heat radiation in a high-temperature environment; the storage battery module provides a working power supply for the temperature control module.
And 5, under the condition of a fault, in order to prevent the fault from expanding and avoid the fault of equipment without the fault, the emergency switch is used for controlling the state of the protection module to be switched from on to off, at the moment, the protection module can be regarded as a power supply switch, the electric connection between the storage battery module and the direct current load is cut off and the electric connection between the storage battery module and the alternating current load is cut off in the mode that the protection module is in the off state, and therefore the storage battery module of the portable field power supply is stopped from charging the load.
Example two:
the present embodiment provides a portable field operation power management system for severe environment, which can be understood as a portable high-energy density field operation power system, for implementing the method of the first embodiment based on the same inventive concept.
The portable field power management system in this embodiment includes an energy collection system, an energy storage system, and an energy management system, and the energy collection system is connected with the energy storage system, and the energy storage system is connected with the energy management system both way, and the energy management system is connected with energy output interface.
The energy collection system comprises an individual walking power generation battery, a metal air battery, a flexible thin-film solar cell and a charger, wherein the charger is used for transferring energy collected by the individual walking power generation battery, the metal air battery and the flexible thin-film solar cell to the energy storage system. More specifically, the charger comprises a charging coil and a multi-purpose battery clamp, wherein the multi-purpose battery clamp is used for connecting different energy supply sources (such as an individual walking power generation battery, a metal air battery and the like), and the charger further comprises an alternating current-direct current conversion circuit, a switching circuit, a protection circuit and the like; the individual soldier walking power generation battery is used for converting mechanical energy generated by individual soldier walking into electric energy through an internal piezoelectric material, and the charger is used for transferring the electric energy to the energy storage system; the storage battery module is a magnesium-based lithium battery pack with good temperature resistance, and the energy collecting system further comprises commercial power; energy collection is completed through the charger, the charger is used for transferring the energy of the individual walking power generation battery, the metal air battery, the flexible thin-film solar battery and the mains supply to the magnesium-based lithium battery pack in the energy storage system, when the energy storage system is specifically applied, the individual walking power generation battery, the metal air battery, the flexible thin-film solar battery and the mains supply can be arranged in parallel, and a 220/380V alternating current charging mode is adopted under the condition that the mains supply can be used in individual occasions.
As a further improved technical scheme, the metal-air battery is an aluminum-air battery which has high conversion efficiency, high specific energy, low temperature, no noise pollution and low radiation silent power generation, the flexible thin-film solar battery is a Copper Indium Gallium Selenide (CIGS) thin-film battery which is stable, efficient, wide in spectrum and strong in space radiation resistance, piezoelectric materials in the individual soldier walking power generation battery comprise polyvinylidene fluoride (PVDF) and lead zirconate titanate (PZT), and the storage battery module is a magnesium-based lithium battery pack which has high specific power, high specific energy, low temperature resistance, high temperature resistance, low self-discharge performance and high safety and reliability.
The energy storage system comprises a storage battery module (storage battery pack), a charging module and a discharging module, wherein the charging module is used for charging the energy transferred by the charger into the storage battery module, the storage battery module is used for storing the energy, and the discharging module is used for outputting the energy stored by the storage battery module.
The energy management system can comprise a temperature control module, an emergency switch, a protection module, a direct current-direct current conversion module and a direct current-alternating current inversion module, wherein the protection module is used for transferring energy output by the discharge module to the direct current-direct current conversion module or the direct current-alternating current inversion module, the direct current-direct current conversion module and the direct current-alternating current inversion module are used as energy output interfaces, the direct current-direct current conversion module can be a DC/DC28V constant voltage output module, the direct current-alternating current inversion module can be a DC/AC220V constant voltage output module, the direct current-direct current conversion module can be used for outputting energy to a direct current load so as to provide a working power supply for the direct current load, the direct current-alternating current inversion module can be used for outputting energy to an alternating current load so as to provide a working power supply for the alternating current load, the energy management system can be used for completing functions of electric energy conversion, electric energy management, capacity prediction and the like, and the optimal energy management strategy design or control of the whole system under different power supply system structures and operation modes can be realized.
The DC-AC inverter module adopts a scheme of a series resonant Current source high-frequency link sine wave inverter, the inverter can be formed by cascading DC/HFAC/LFAC, specifically, as shown in fig. 4, the DC-AC inverter module comprises a cascaded (high-frequency) inverter bridge, a (high-frequency) isolation transformer or energy storage transformer, a cycle wave converter and a filter, the inverter bridge is provided with an LC series resonant circuit, and the inverter bridge is consistent with the resonant frequency of the LC series resonant circuit, so that DC/AC single-stage inversion and ZCS (Zero Current switching) of all power tubes are realized, leakage inductance and no energy storage are realized when the Current of the transformer is converted at the Zero crossing point, and overvoltage is not generated due to no follow Current loop in the dead zone, so that the invention has the characteristics of high conversion efficiency, high power density, bidirectional flow of energy and the like; the driving pulse of the cycle converter is a mixed pulse of a low-frequency pulse and a high-frequency pulse, and the switch is in a high-frequency switching state only when energy is fed back; the inverter bridge is connected with the protection module, and the filter is used for connecting an alternating current load; in order to improve the safety and reliability of the portable field power supply, an electrical isolation device is arranged between the direct current-direct current conversion module and the direct current-alternating current inversion module; the temperature control module is used for enabling the storage battery module to work within a preset temperature range, and comprises a heat dissipation module and a heating module, wherein the heat dissipation module is a cooling fan, the heating module is a resistance wire or a heating film, and the power consumption of the temperature control module is not large, so that the power supplies of the heat dissipation module and the heating module are both the storage battery module; the emergency switch is used for controlling the storage battery module to supply power to the load after the protection module is disconnected, namely, the electric connection between the field power supply and the power load is disconnected. The protection module in this embodiment includes a load overcharge protection circuit, a battery module overdischarge protection circuit, a short circuit protection circuit, and a cell balance protection circuit, so as to protect the battery module, a direct current load, and an alternating current load.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description herein, references to the description of the term "the present embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and simplifications made in the spirit of the present invention are intended to be included in the scope of the present invention.

Claims (10)

1. A portable field power management method used in severe environment is characterized in that: the method comprises the following steps;
step 1, collecting first energy generated by an individual walking power generation cell, second energy generated by a metal air cell and third energy generated by a flexible thin-film solar cell;
step 2, charging a storage battery module in the portable field power supply by using at least one of the first energy, the second energy and the third energy, enabling a real-time charging current to be larger than a preset current value and a real-time charging voltage to be smaller than a preset voltage value in the process of charging the storage battery module, and enabling the storage battery module to be in a preset temperature range through a temperature control module in the portable field power supply;
step 3, judging the real-time working state of an emergency switch in the portable field power supply; if the real-time working state of the emergency switch is the stop-motion state, executing the step 4; if the real-time working state of the emergency switch is the starting state, executing the step 5;
step 4, enabling the electric energy output by the storage battery module to sequentially pass through a protection module and a direct current-direct current conversion module in the portable field power supply and then charge a direct current load, and/or enabling the electric energy output by the storage battery module to sequentially pass through the protection module and the direct current-alternating current inversion module in the portable field power supply and then charge an alternating current load, enabling the storage battery module to be in a preset temperature range through a temperature control module in the portable field power supply, and then returning to the step 3;
and 5, controlling the state of the protection module to be switched from on to off through the emergency switch, so as to stop the storage battery module of the portable field power supply from charging the load.
2. The portable field power management method for harsh environments of claim 1, wherein:
in step 2 and/or step 4, a cooling fan in the temperature control module is used for dissipating heat of the storage battery module or a resistance wire or a heating film in the temperature control module is used for heating the storage battery module; the storage battery module provides a working power supply for the temperature control module.
3. The portable field power management method for harsh environments of claim 1 or 2, wherein:
the step 1 also comprises the step of collecting fourth energy supplied by commercial power;
the step 2 further comprises the step of charging a storage battery module in the portable field power supply by using at least one of the first energy, the second energy, the third energy and the fourth energy.
4. The utility model provides a portable field operations power management system for under adverse circumstances which characterized in that: the system comprises an energy collection system, an energy storage system and an energy management system;
the energy collection system comprises an individual walking power generation battery, a metal air battery, a flexible thin-film solar cell and a charger, and the charger is used for transferring energy collected by the individual walking power generation battery, the metal air battery and the flexible thin-film solar cell to the energy storage system;
the energy storage system comprises a storage battery module, a charging module and a discharging module, wherein the charging module is used for charging the energy transferred by the charger into the storage battery module, the storage battery module is used for storing the energy, and the discharging module is used for outputting the energy stored by the storage battery module;
the energy management system comprises a temperature control module, an emergency switch, a protection module, a direct current-direct current conversion module and a direct current-alternating current inversion module, wherein the protection module is used for transferring the energy output by the discharge module to the direct current-direct current conversion module or the direct current-alternating current inversion module; the temperature control module is used for enabling the storage battery module to work within a preset temperature range, and the emergency switch is used for controlling the protection module to stop supplying power to the load after being disconnected.
5. The portable field power management system for harsh environments of claim 4, wherein:
the individual walking power generation battery is used for converting mechanical energy generated by individual walking into electric energy through an internal piezoelectric material, the charger is used for transferring the electric energy to an energy storage system, and the piezoelectric material comprises polyvinylidene fluoride and lead zirconate titanate.
6. The portable field power management system for harsh environments of claim 5, wherein:
the direct current-alternating current inversion module comprises an inversion bridge, an isolation transformer, a cycle converter and a filter which are cascaded, and an LC series resonance circuit is arranged on the inversion bridge; the inverter bridge is connected with the protection module, and the filter is used for connecting an alternating current load.
7. The portable field operations power management system for use in harsh environments of claim 6, wherein:
an electric isolation device is arranged between the direct current-direct current conversion module and the direct current-alternating current inversion module.
8. The portable field operations power management system for use in harsh environments of claim 7, wherein:
the storage battery module is a magnesium-based lithium battery pack, and the energy collection system further comprises commercial power; the charger is used for transferring the energy of the individual walking power generation battery, the metal air battery, the flexible thin-film solar battery and the mains supply to the magnesium-based lithium battery pack in the energy storage system.
9. The portable field power management system for harsh environments of claim 8, wherein:
the temperature control module comprises a heat dissipation module and a heating module, the heat dissipation module is a cooling fan, the heating module is a resistance wire or a heating film, and power supplies of the heat dissipation module and the heating module are both the storage battery module.
10. The portable field operations power management system for use in harsh environments of claim 9, wherein:
the protection module comprises a load overcharge protection circuit, a storage battery module overdischarge protection circuit, a short circuit protection circuit and a battery cell balance protection circuit and is used for protecting the storage battery module, a direct current load and an alternating current load.
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