Isolation type multi-energy management system suitable for high-cold and high-altitude field environment

Abstract

The invention provides an isolated multi-energy management system suitable for a high-cold and high-altitude field environment. The isolated multi-energy management system comprises more than one energy, more than one load, an energy input module, an isolated energy router and a power supply output module, more than one energy is connected with the input end of the energy input module and is used for inputting electric energy to the energy input module; the output end of the energy input module and the input end of the isolated energy router carry out electric energy transmission in a wireless transmission mode, and the output end of the isolated energy router and the input end of the power supply output module carry out electric energy transmission in a wireless transmission mode. The output end of the power supply output module serves as a power supply interface to be connected with more than one load to supply power to the load; the system is suitable for high-cold, high-altitude and field environments and has the functions of mixed input of various energy sources and supply of various energy sources, and communication interfaces are completely physically isolated.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy management, and relates to an isolated multi - energy management system applicable to alpine, high - altitude and wild environments. Background Art

[0002] Alpine, high - altitude and wild environments are characterized by low temperature, hypoxia, large temperature difference between day and night, fragile ecological chain, and harsh working conditions for personnel.

[0003] The traditional method of using diesel power generation is affected by low temperature and low oxygen, and is prone to difficult starting or unstable power supply. Moreover, this chemical energy power generation method will cause pollution to the natural environment; the methods of using wind power generation or photovoltaic power generation alone are restricted by natural environmental factors such as geographical location, wind force, and sunlight, and cannot supply power continuously and stably; the method of using a single energy storage battery for power supply is affected by low temperature and battery capacity, and charging in the wild environment needs to be considered to continuously supply power.

[0004] Traditionally, cables are used to interconnect devices. However, cables take up a large amount of space, thick cables and electrical connectors are difficult to operate in low - temperature environments, personnel consume a large amount of physical strength, and cable layout takes a long time. And in low - temperature, low - oxygen and wild environments, personnel are prone to physical exhaustion and even altitude sickness.

[0005] Therefore, researching a multi - energy management system with multiple energy mixed inputs and completely physically isolated energy supplies and communication interfaces is of great significance for improving the energy supply capacity in alpine, high - altitude and wild environments. Summary of the Invention

[0006] The purpose of the present invention aims to solve at least one of the problems existing in the prior art.

[0007] To this end, the present invention provides an isolated multi - energy management system applicable to alpine, high - altitude and wild environments, which is applicable to alpine, high - altitude and wild environments, has multiple energy mixed inputs, and completely physically isolates various energy supplies and communication interfaces.

[0008] The technical solution of the present invention is as follows:

[0009] An isolated multi - energy management system applicable to alpine, high - altitude and wild environments includes: more than one energy, more than one load, an energy input module, an isolated energy router, and a power supply output module;

[0010] One or more energy sources are connected to the input end of the energy input module, and the energy is used to input electrical energy to the energy input module; the output end of the energy input module is wirelessly connected to the input end of the isolated energy router for electrical energy transmission, and the output end of the isolated energy router is wirelessly connected to the input end of the power supply output module for electrical energy transmission. The output end of the power supply output module is used as a power supply interface to connect to one or more loads to supply power to the loads.

[0011] Among them, the isolated energy router is used for power conversion and power decoupling of the input electrical energy, and the isolated energy router is provided with a control unit, which is used to intelligently allocate the output power of the electrical energy provided by multiple energy sources according to the operating state information provided by each energy source and the actual power required by the known loads to be powered.

[0012] Furthermore, the energy input module includes: high-frequency conversion circuits A with the same number as the number of energy sources;

[0013] The isolated energy router includes: an isolated energy routing circuit, high-frequency conversion circuits B with the same number as the number of energy sources, and high-frequency conversion circuits C with the same number as the number of loads;

[0014] The power supply output module includes: high-frequency conversion circuits D with the same number as the number of loads; among them, the output end of each high-frequency conversion circuit D is used as a power supply interface;

[0015] The connection relationship is as follows: each energy source is connected to a high-frequency conversion circuit A through a cable; each high-frequency conversion circuit A is provided with a wireless power supply primary coil A; each high-frequency conversion circuit B is provided with a wireless power supply secondary coil A;

[0016] The wireless power supply primary coil A and the wireless power supply secondary coil A are coupled in one-to-one correspondence to form a wireless power supply coil A;

[0017] The isolated energy routing circuit adopts an isolation transformer with a magnetic core. The isolation transformer is provided with transformer primary coils with the same number as the number of energy sources and one or more transformer secondary coils. The transformer primary coils and the transformer secondary coils are coupled through the magnetic core; and the energy flow direction of the isolated energy routing circuit can be defined;

[0018] Each transformer primary coil is respectively and electrically connected to the high-frequency conversion circuit B in one-to-one correspondence; the number of transformer secondary coils is equal to the number of high-frequency conversion circuits C; each transformer secondary coil is respectively and electrically connected to the high-frequency conversion circuit C in one-to-one correspondence;

[0019] Each high-frequency conversion circuit C is provided with a wireless power supply primary coil B, and each high-frequency conversion circuit D is provided with a wireless power supply secondary coil B; the wireless power supply primary coil B and the wireless power supply secondary coil B are coupled in one-to-one correspondence to form a wireless power supply coil B;

[0020] The power transmission process is as follows: the electric energy provided by each energy source is sequentially transmitted through the high-frequency conversion circuit A, the wireless power supply coil A, the high-frequency conversion circuit B, the isolation transformer, the high-frequency conversion circuit C, the wireless power supply coil B, and the high-frequency conversion circuit D to the power supply interface to supply power to the load;

[0021] Among them, the wireless power supply coil A and the wireless power supply coil B are used to realize wireless power transmission by using the electromagnetic coupling principle. The high-frequency conversion circuit A, the high-frequency conversion circuit B, the high-frequency conversion circuit C, and the high-frequency conversion circuit D are used to convert the transmitted electric energy in terms of frequency and voltage. The isolation transformer cooperates with the high-frequency conversion circuit B to realize input-output isolation and power decoupling.

[0022] Furthermore, the energy input module includes: communication modulation circuits A with the same number as the energy sources;

[0023] The isolated energy router includes: communication modulation circuits B with the same number as the energy sources;

[0024] The connection relationship is as follows: each energy source is connected to a communication modulation circuit A through a cable; each communication modulation circuit A is provided with a wireless power carrier primary coil; each communication modulation circuit B is provided with a wireless power carrier secondary coil;

[0025] The wireless power carrier primary coil and the wireless power carrier secondary coil are coupled in one-to-one correspondence to form a wireless power carrier coil;

[0026] The output end of each communication modulation circuit B serves as a communication interface and is electrically connected to the control unit through a cable. The control unit is also electrically connected to the high-frequency conversion circuit B and the isolation transformer through cables respectively;

[0027] The signal transmission process is as follows: the operation status information provided by each energy source is sequentially transmitted through the communication modulation circuit A, the wireless power carrier coil, and the communication modulation circuit B to the communication interface, and then output to the control unit;

[0028] Among them, the wireless power carrier coil is used to realize wireless signal transmission by using the near-field magnetic induction communication technology. The communication modulation circuit A and the communication modulation circuit B are used to realize signal decoupling. Therefore, the cooperation of the wireless power carrier coil and the communication modulation circuit can realize wireless power carrier.

[0029] Further, after the control unit intelligently distributes the output power of the high-frequency and high-voltage electric energy provided by multiple energy sources, it generates a control instruction and sends the control instruction to multiple high-frequency conversion circuits B and isolation transformers. Each high-frequency conversion circuit B and isolation transformer convert the electric energy of the corresponding energy source in terms of frequency, voltage, and power decoupling according to the received control instruction, thereby achieving power control.

[0030] Further, one or more energy sources are respectively a wind turbine, a diesel engine, a photovoltaic cell, and a storage battery;

[0031] The intelligent distribution is as follows: Set the priorities of the energy sources for powering the load to be wind power generation of the wind turbine, photovoltaic power generation, storage battery power generation, and diesel power generation of the diesel engine; Wind power generation and photovoltaic power generation can supply power to the load simultaneously. According to the phase-shifting control algorithm, the output power ratio of wind power generation and photovoltaic power generation is automatically adjusted. Combining the online monitoring of the load power consumption, the statistical data of the power consumption, and the prediction results, if the wind power generation and photovoltaic power generation cannot meet the power consumption, the storage battery power supply is automatically switched in. When the storage battery cannot meet the power consumption either, the diesel power generation is switched in, and at the same time, the storage battery is charged and the load is powered.

[0032] Further, a power switch tube is provided in the high-frequency conversion circuit B. When the power switch tube receives the control instruction, the control instruction is a driving signal for the power switch tube. The high-frequency conversion circuit B performs frequency conversion according to the control instruction, thereby achieving power decoupling and further achieving power control;

[0033] When adjusting the output power ratio, the driving signals of the power switch tubes of the high-frequency conversion circuits B corresponding to each power supply interface are mutually lagged by a phase-shifting duty cycle, so that the output power of each power supply interface can be decoupled, thereby controlling the output power ratio of each power supply interface.

[0034] Further, the intelligent scheduling of wind power generation and photovoltaic power generation adopts the MPPT control algorithm to automatically achieve the maximum power generation under different wind speeds and different light conditions:

[0035] Apply a duty cycle perturbation to the driving signal of the power switch tube of the high-frequency conversion circuit B, observe the power change of the output of the high-frequency conversion circuit B, and perform the next interference according to the change of the power after the perturbation until the wind power generation or photovoltaic power generation works at the maximum output power point.

[0036] Further, according to the power of the storage battery, the isolation-type energy routing circuit defines the energy flow direction, and can automatically control the charging or discharging of the storage battery to achieve bidirectional energy flow.

[0037] Further, the operation state information includes the output power, warning, and protection signals of each energy source, and the output power includes: output voltage and output current.

[0038] Further, the isolated energy router is integrated into a cabinet. There is a display and control screen on the front of the cabinet, which is electrically connected to the control unit and used to display the operation status information of the isolated multi-energy management system. A plurality of coil alignment mechanisms are distributed on the side of the cabinet. When arranging the isolated multi-energy management system, the input coils of wind power generation, diesel power generation, photovoltaic power generation, energy storage battery, and the same number of power supply output coils as the load are respectively placed on the corresponding coil alignment mechanisms.

[0039] The input coil of wind power generation includes: a wireless power supply primary coil A corresponding to the fan and a wireless power carrier primary coil. The input coil of diesel power generation includes: a wireless power supply primary coil A corresponding to the diesel engine and a wireless power carrier primary coil. The input coil of photovoltaic power generation includes: a wireless power supply primary coil A corresponding to the photovoltaic and a wireless power carrier primary coil. The input coil of the energy storage battery includes: a wireless power supply primary coil A corresponding to the energy storage battery and a wireless power carrier primary coil. The power supply output coil is a wireless power supply secondary coil B.

[0040] Applying the above technical solutions, the present invention has the following beneficial effects:

[0041] (1) The present invention provides an isolated multi-energy management system suitable for alpine and high-altitude field environments, which has the characteristics of multiple energy mixed input, and complete physical isolation of various energy supplies and communication interfaces. It can improve the deficiencies of single energy supply source, poor power supply reliability, complex interconnection between devices, high environmental requirements, and large consumption of human resources in traditional alpine, high-altitude, and field environments.

[0042] (2) All external interfaces of the energy management system of the present invention adopt wireless methods, which can realize the rapid layout of the energy management system, improve the usability and reliability of the energy management system, minimize the operation steps of personnel, and save the physical strength of personnel.

[0043] (3) The present invention realizes the intelligent scheduling and automatic load distribution of multiple energy mixed inputs such as wind power generation, photovoltaic power generation, diesel power generation, and energy storage battery by combining the isolated energy routing technology with definable energy flow direction, wireless power transmission technology, wireless power carrier technology, etc. Description of the Drawings

[0044] The included drawings are used to provide a further understanding of the embodiments of the present invention. They form a part of the specification, are used to illustrate the embodiments of the present invention, and together with the text description, explain the principles of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0045] Figure 1 Schematic diagram of the circuit connection of the present invention;

[0046] Figure 2 External view of the cabinet of the present invention.

[0047] Among them, 1 - coil alignment mechanism, 2 - shock absorber, 3 - display and control screen. Specific embodiments

[0048] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The description of at least one exemplary embodiment below is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0049] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0050] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for the sake of convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0051] Embodiment 1:

[0052] This embodiment provides an isolated multi - energy management system suitable for alpine and high - altitude field environments, including: more than one energy source, more than one load, an energy input module, an isolated energy router, and a power supply output module;

[0053] More than one energy source is connected to the input end of the energy input module, and the energy source is used to input electric energy to the energy input module; the output end of the energy input module and the input end of the isolated energy router perform electric energy transmission through a wireless transmission method, the output end of the isolated energy router and the input end of the power supply output module perform electric energy transmission through a wireless transmission method, and the output end of the power supply output module is used as a power supply interface to be connected to more than one load to realize power supply to the load;

[0054] Among them, the isolated energy router is used to perform power conversion and power decoupling on the input electric energy, and the isolated energy router is provided with a control unit, and the control unit is used to realize intelligent distribution of the output power of the electric energy provided by multiple energy sources according to the operating state information provided by each energy source and the actually required power of the known load to be powered.

[0055] Embodiment 2:

[0056] Based on Embodiment 1, in this embodiment, the energy input module includes: high - frequency conversion circuits A with the same number as the energy sources, and communication modulation circuits A with the same number as the energy sources;

[0057] The isolated energy router includes: a control unit, an isolated energy routing circuit, high - frequency conversion circuits B with the same number as the energy sources, communication modulation circuits B with the same number as the energy sources, and high - frequency conversion circuits C with the same number as the load;

[0058] The power supply output module includes: high - frequency conversion circuits D with the same number as the load; among them, the output end of each high - frequency conversion circuit D is used as a power supply interface to be connected to the load;

[0059] In this embodiment, four energy sources are adopted, and the four energy sources are respectively a wind turbine, a diesel engine, a photovoltaic cell, and a storage battery; three loads are adopted;

[0060] The overall connection relationship is as follows:

[0061] Each energy source is respectively connected to a high - frequency conversion circuit A and a communication modulation circuit A through a cable;

[0062] Each high - frequency conversion circuit A is provided with a wireless power supply primary coil A, and each communication modulation circuit A is provided with a wireless power carrier primary coil;

[0063] Each high - frequency conversion circuit B is provided with a wireless power supply secondary coil A, and each communication modulation circuit B is provided with a wireless power carrier secondary coil;

[0064] The primary wireless power supply coil A and the secondary wireless power supply coil A are coupled in one-to-one correspondence to form the wireless power supply coil A;

[0065] The primary wireless power carrier coil and the secondary wireless power carrier coil are coupled in one-to-one correspondence to form the wireless power carrier coil;

[0066] The isolated energy routing circuit uses an isolated transformer with a magnetic core. The isolated transformer is provided with the same number of transformer primary coils as the number of energy sources and more than one transformer secondary coil. The transformer primary coil and the transformer secondary coil are coupled through the magnetic core; and the energy flow direction of the isolated energy routing circuit can be defined;

[0067] Each transformer primary coil is respectively and electrically connected to the high-frequency conversion circuit B in one-to-one correspondence; the number of transformer secondary coils is equal to the number of high-frequency conversion circuits C; each transformer secondary coil is respectively and electrically connected to the high-frequency conversion circuit C in one-to-one correspondence;

[0068] Each high-frequency conversion circuit C is provided with a primary wireless power supply coil B, and each high-frequency conversion circuit D is provided with a secondary wireless power supply coil B; the primary wireless power supply coil B and the secondary wireless power supply coil B are coupled in one-to-one correspondence to form the wireless power supply coil B;

[0069] Among them, the output end of each communication modulation circuit B serves as a communication interface and is electrically connected to the control unit through a cable. The control unit is also electrically connected to the high-frequency conversion circuit B and the isolated transformer respectively through a cable;

[0070] The electric energy transmission process is as follows: the low-frequency and low-voltage electric energy, whether DC or AC, provided by each energy source is sequentially transmitted to the power supply interface through the high-frequency conversion circuit A, the wireless power supply coil A, the high-frequency conversion circuit B, the isolated transformer, the high-frequency conversion circuit C, the wireless power supply coil B, and the high-frequency conversion circuit D to provide the required low-frequency and low-voltage electric energy for the load; since the input energy is DC or AC, after passing through the electric energy transmission process of this embodiment, the output is all low-frequency and low-voltage AC electricity;

[0071] Among them, the wireless power supply coil A and the wireless power supply coil B are used to achieve wireless power transmission by using the principle of electromagnetic coupling, that is, wireless transmission without physical connection. Since high-frequency and high-voltage electrical energy is required during the wireless transmission process, the high-frequency conversion circuit A converts the input low-frequency and low-voltage electrical energy into high-frequency and high-voltage electrical energy. After the wireless transmission is achieved, the high-frequency conversion circuit B converts the high-frequency and high-voltage electrical energy into low-frequency and low-voltage electrical energy, and then the high-frequency conversion circuit C converts the low-frequency and low-voltage electrical energy into high-frequency and high-voltage electrical energy again. After the wireless transmission is achieved, the high-frequency conversion circuit D converts the high-frequency and high-voltage electrical energy into low-frequency and low-voltage electrical energy for output. Among them, the high-frequency conversion circuit B cooperates with the isolation transformer to achieve input-output isolation and power decoupling. Therefore, the cooperation of the wireless power supply coil, the high-frequency conversion circuit, and the isolation transformer can achieve the conversion and transmission of the frequency and voltage of wireless electrical energy and power decoupling. The frequency conversion here refers to the frequency of voltage / electrical energy.

[0072] The signal transmission process is as follows: The operation status information provided by each energy source is sequentially transmitted to the communication interface through the communication modulation circuit A, the wireless power carrier coil, and the communication modulation circuit B, and then output to the control unit. Among them, the operation status information includes the output power, warning, and protection signals of each energy source. The output power includes the output voltage and output current.

[0073] Among them, the wireless power carrier coil is used to achieve wireless signal transmission by using the near-field magnetic induction communication technology, that is, wireless transmission without physical connection. The communication modulation circuit A and the communication modulation circuit B are used to achieve signal decoupling. Therefore, the cooperation of the wireless power carrier coil and the communication modulation circuit can achieve wireless power carrier. The control unit is used to realize the intelligent distribution of the output power of the high-frequency and high-voltage electrical energy provided by multiple energy sources (after the output power of the energy source is converted, it is used as the input power of the load) according to the received operation status information of each energy source and the known actual power required by the load to be powered, generate a control instruction, and send the control instruction to multiple high-frequency conversion circuits B and isolation transformers. Each high-frequency conversion circuit B and isolation transformer perform frequency conversion, voltage conversion, and power decoupling on the high-frequency and high-voltage electrical energy transmitted wirelessly by the corresponding energy source according to the received control instruction. Among them, the high-frequency conversion circuit A, the high-frequency conversion circuit B, the high-frequency conversion circuit C, and the high-frequency conversion circuit D all adopt fixed-frequency conversion. Among them, the high-frequency conversion circuit B and the isolation transformer adopt phase-shift control to achieve power decoupling. Phase-shift control is to change only the phase without changing the PWM control frequency. That is, there is a power switch tube in the high-frequency conversion circuit B. When the power switch tube receives the control instruction, the control instruction is the drive signal of the power switch tube. The high-frequency conversion circuit B performs frequency conversion according to the control instruction, thereby achieving power decoupling and then achieving power control.

[0074] Among them, the intelligent distribution principle is as follows: Set the priorities of the energy sources supplying power to the load as the wind power generation of the wind turbine, the photovoltaic power generation, the power generation of the energy storage battery, and the diesel power generation of the diesel engine; the wind power generation and the photovoltaic power generation can supply power to the load simultaneously. According to the phase-shift control algorithm, the output power ratio of the wind power generation and the photovoltaic power generation is automatically adjusted. Combining the online monitoring of the load power consumption, the statistical data of the power consumption, and the prediction results, when the wind power generation and the photovoltaic power generation cannot meet the power consumption, the energy storage battery is automatically switched in for power supply. When the energy storage battery cannot meet the power consumption either, the diesel power generation is switched in, and at the same time, the energy storage battery is charged and the load is powered.

[0075] Among them, different from the traditional form of directly paralleling each input energy source, in the circuit topology described in this embodiment, due to the existence of the isolation transformer, each input energy source is mutually coupled, which is not convenient for individually controlling each input energy source, that is, it is not convenient to control the output power ratio. To decouple the power of different ports, in this embodiment, the driving signals of the power switch tubes of the high-frequency conversion circuit B corresponding to each port (i.e., the power supply interface) are mutually lagged by a phase-shift duty cycle, and thus the output power of each port can be decoupled, so as to control the output power ratio of each power supply interface.

[0076] In addition, the intelligent scheduling of the wind power generation and the photovoltaic power generation adopts the MPPT control algorithm, which can automatically achieve the maximum power generation under different wind speeds and different lighting environment conditions. The specific process is as follows: Apply a duty cycle perturbation to the driving signal of the power switch tube of the high-frequency conversion circuit B, observe the power change of the output of the high-frequency conversion circuit B, and perform the next interference according to the change of the power after the perturbation until the wind power generation or the photovoltaic power generation works at the maximum output power point.

[0077] In addition, according to the power of the energy storage battery, the energy flow direction is defined through the isolated energy routing circuit, and the charging or discharging of the energy storage battery can be automatically controlled, that is, the bidirectional energy flow can be realized.

[0078] In this embodiment, refer to the appendix Figure 2, the isolated energy router is integrated into a 19-inch cabinet. There is a display and control screen 3 on the front of the cabinet. The display and control screen 3 is electrically connected to the control unit and is used to display the operation status information of the isolated multi-energy management system. Seven coil alignment mechanisms 1 are distributed on the right side of the cabinet. When arranging the isolated multi-energy management system, personnel only need to place the input coils of wind power generation (i.e., the primary coils of wind power generation, including: the wireless power supply primary coil A corresponding to the wind turbine and the wireless power carrier primary coil), the input coils of diesel power generation (i.e., the primary coils of diesel power generation, including: the wireless power supply primary coil A corresponding to the diesel engine and the wireless power carrier primary coil), the input coils of photovoltaic power generation (i.e., the primary coils of photovoltaic power generation, including: the wireless power supply primary coil A corresponding to the photovoltaic and the wireless power carrier primary coil), the input coils of energy storage batteries (i.e., the primary coils of energy storage batteries, including: the wireless power supply primary coil A corresponding to the energy storage battery and the wireless power carrier primary coil), and the 3 power supply output coils (i.e., the wireless power supply secondary coil B) on the corresponding coil alignment mechanisms 1 respectively. Shock absorbers 2 are designed on the left side and the bottom of the cabinet to meet the vibration environment requirements of road transportation.

[0079] When the isolated multi-energy management system is working, (1) personnel place the 4 input coils and the 3 power supply output coils on the coil alignment mechanisms 1 respectively and start the external output of each energy source in sequence.

[0080] (2) When any energy source provides output power, the isolated energy router runs automatically. Through wireless power carrier, information interaction between the control unit and the energy sources is realized, that is, the wind turbine, the diesel engine, the photovoltaic, and the energy storage battery respectively transmit operation status information such as output voltage, output current, warning and protection signals to the energy router wirelessly and receive control instructions wirelessly for intelligent power scheduling.

[0081] (3) According to the power actually required by the load, the control unit distributes the output power of various energy sources intelligently according to the allocation strategy of wind power generation, photovoltaic power generation, energy storage battery, and diesel power generation in sequence of priority by the isolated energy router.

[0082] (4) When ending the power supply, first turn off all electrical loads and all input energy sources, and then remove the input coils and the power supply output coils.

[0083] For ease of description, spatial relative terms such as "above", "over", "on the upper surface", "upper" etc. may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0084] In addition, it should be noted that the use of terms such as "first", "second" etc. to define components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present invention.

[0085] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An isolated multi - energy management system applicable to alpine and high - altitude field environments, characterized in that, Including: One or more energy sources, one or more loads, an energy input module, an isolated energy router, and a power supply output module; One or more energy sources are connected to the input end of the energy input module, and the energy source is used to input electric energy to the energy input module; The output end of the energy input module and the input end of the isolated energy router perform electric energy transmission through a wireless transmission method, the output end of the isolated energy router and the input end of the power supply output module perform electric energy transmission through a wireless transmission method, and the output end of the power supply output module is connected to one or more loads as a power supply interface to supply power to the loads; Among them, the isolated energy router is used for power conversion and power decoupling of the input electric energy, and the isolated energy router is provided with a control unit, and the control unit is used to realize intelligent distribution of the output power of the electric energy provided by multiple energy sources according to the operation state information provided by each energy source and the actual power required by the known load to be powered.

2. The isolated multi - energy management system applicable to alpine and high - altitude field environments according to claim 1, wherein, The energy input module includes: high-frequency conversion circuits A with the same number as the number of energy sources; The isolated energy router includes: an isolated energy routing circuit, high-frequency conversion circuits B with the same number as the number of energy sources, and high-frequency conversion circuits C with the same number as the number of loads; The power supply output module includes: high-frequency conversion circuits D with the same number as the number of loads; among them, the output end of each high-frequency conversion circuit D is used as a power supply interface; The connection relationship is: each energy source is connected to a high-frequency conversion circuit A through a cable; each high-frequency conversion circuit A is provided with a wireless power supply primary coil A; each high-frequency conversion circuit B is provided with a wireless power supply secondary coil A; The wireless power supply primary coil A and the wireless power supply secondary coil A are coupled in one-to-one correspondence to form a wireless power supply coil A; The isolated energy routing circuit uses an isolation transformer with a magnetic core. The isolation transformer is provided with transformer primary coils with the same number as the number of energy sources and one or more transformer secondary coils. The transformer primary coils and the transformer secondary coils are coupled through the magnetic core; and the energy flow direction of the isolated energy routing circuit can be defined; Each transformer primary coil is respectively connected to a high-frequency conversion circuit B in one-to-one correspondence; the number of transformer secondary coils is equal to the number of high-frequency conversion circuits C; each transformer secondary coil is respectively connected to a high-frequency conversion circuit C in one-to-one correspondence; Each high-frequency conversion circuit C is provided with a wireless power supply primary coil B, and each high-frequency conversion circuit D is provided with a wireless power supply secondary coil B; the wireless power supply primary coil B and the wireless power supply secondary coil B are coupled in one-to-one correspondence to form a wireless power supply coil B; The electric energy transmission process is: the electric energy provided by each energy source is sequentially transmitted to the power supply interface through the high-frequency conversion circuit A, the wireless power supply coil A, the high-frequency conversion circuit B, the isolation transformer, the high-frequency conversion circuit C, the wireless power supply coil B, and the high-frequency conversion circuit D to supply power to the load; Among them, the wireless power supply coil A and the wireless power supply coil B are used to realize the wireless transmission of electric energy by using the electromagnetic coupling principle. The high-frequency conversion circuit A, the high-frequency conversion circuit B, the high-frequency conversion circuit C and the high-frequency conversion circuit D are used to convert the transmitted electric energy in terms of frequency and voltage. The isolation transformer cooperates with the high-frequency conversion circuit B to realize input-output isolation and power decoupling.

3. The isolated multi - energy management system applicable to alpine and high - altitude field environments as claimed in claim 2, wherein, The energy input module includes: communication modulation circuits A with the same number as the energy sources; The isolated energy router includes: communication modulation circuits B with the same number as the energy sources; The connection relationship is as follows: each energy source is connected to a communication modulation circuit A through a cable; each communication modulation circuit A is provided with a primary wireless power carrier coil; each communication modulation circuit B is provided with a secondary wireless power carrier coil; The primary wireless power carrier coil and the secondary wireless power carrier coil are coupled in one-to-one correspondence to form a wireless power carrier coil; The output end of each communication modulation circuit B serves as a communication interface and is electrically connected to the control unit through a cable. The control unit is also respectively electrically connected to the high-frequency conversion circuit B and the isolation transformer through cables; The signal transmission process is as follows: the operation status information provided by each energy source is sequentially transmitted to the communication interface through the communication modulation circuit A, the wireless power carrier coil, and the communication modulation circuit B, and then output to the control unit; Among them, the wireless power carrier coil is used to realize the wireless transmission of signals by using the near-field magnetic induction communication technology. The communication modulation circuit A and the communication modulation circuit B are used to realize signal decoupling. Therefore, the cooperation of the wireless power carrier coil and the communication modulation circuit can realize wireless power carrier.

4. An isolated multi - energy management system applicable to alpine and high - altitude field environments according to claim 3, characterized in that, After the control unit intelligently distributes the output power of the high-frequency and high-voltage electric energy provided by multiple energy sources, it generates a control instruction and sends the control instruction to multiple high-frequency conversion circuits B and isolation transformers. Each high-frequency conversion circuit B and isolation transformer convert the electric energy of the corresponding energy source in terms of frequency, voltage and power decoupling according to the received control instruction, so as to realize power control.

5. The isolated multi - energy management system applicable to alpine and high - altitude field environments according to any one of claims 1 - 4, characterized in that, One or more energy sources are respectively a fan, a diesel engine, a photovoltaic cell, and a storage battery; The intelligent distribution is as follows: the priorities of the energy sources supplying power to the load are respectively set as the wind power generation of the fan, the photovoltaic power generation, the power generation of the storage battery, and the diesel power generation of the diesel engine; the wind power generation and the photovoltaic power generation can supply power to the load at the same time. According to the phase-shift control algorithm, the output power ratio of the wind power generation and the photovoltaic power generation is automatically adjusted. Combining the online monitoring of the load power consumption, the statistical data of the power consumption and the prediction results, if the wind power generation and the photovoltaic power generation cannot meet the power consumption, the storage battery power supply is automatically switched in. When the storage battery cannot meet the power consumption either, the diesel power generation is switched in, and at the same time, the storage battery is charged and the load is powered.

6. The isolated multi - energy management system applicable to alpine and high - altitude field environments according to claim 5, characterized in that, A power switch tube is provided in the high-frequency conversion circuit B. When the power switch tube receives the control instruction, the control instruction is a driving signal for the power switch tube. The high-frequency conversion circuit B performs frequency conversion according to the control instruction, so as to realize power decoupling and further realize power control; When adjusting the output power ratio, the drive signals of the power switching tubes of the high-frequency conversion circuit B corresponding to each power supply interface are mutually lagged by a phase-shifted duty cycle, so that the output powers of each power supply interface can be decoupled, thereby controlling the output power ratio of each power supply interface.

7. An isolated multi - energy management system applicable to alpine and high - altitude field environments as described in claim 5, characterized in that, The intelligent scheduling of wind power generation and photovoltaic power generation adopts the MPPT control algorithm to automatically achieve the maximum power generation under different wind speeds and different light environment conditions: Apply a duty cycle perturbation to the drive signal of the power switching tube of the high-frequency conversion circuit B, observe the power change of the output of the high-frequency conversion circuit B, and perform the next interference according to the power change after the perturbation until the wind power generation or photovoltaic power generation works at the maximum output power point.

8. An isolated multi - energy management system applicable to alpine and high - altitude field environments according to any one of claims 2 - 4, characterized in that, According to the power of the energy storage battery, the isolation type energy routing circuit is used to define the energy flow direction, which can automatically control the charging or discharging of the energy storage battery and realize the bidirectional energy flow.

9. An isolated multi - energy management system applicable to alpine and high - altitude field environments as claimed in claim 3 or 4, characterized in that, The operation state information includes the output power, warning and protection signals of each energy source, and the output power includes: output voltage and output current.

10. An isolated multi - energy management system applicable to alpine and high - altitude field environments as described in claim 5, characterized in that, The isolation type energy router is integrated in the cabinet. There is a display and control screen on the front of the cabinet, and the display and control screen is electrically connected to the control unit for displaying the operation state information of the isolation type multi-energy management system; a plurality of coil alignment mechanisms are distributed on the side of the cabinet. When arranging the isolation type multi-energy management system, the input coils of wind power generation, the input coils of diesel power generation, the input coils of photovoltaic power generation, the input coils of energy storage batteries, and the power supply output coils with the same number as the load are respectively placed on the corresponding coil alignment mechanisms; The input coil of wind power generation includes: the wireless power supply primary coil A corresponding to the wind turbine and the wireless power carrier primary coil, the input coil of diesel power generation includes: the wireless power supply primary coil A corresponding to the diesel engine and the wireless power carrier primary coil, the input coil of photovoltaic power generation includes: the wireless power supply primary coil A corresponding to the photovoltaic and the wireless power carrier primary coil, the input coil of the energy storage battery includes: the wireless power supply primary coil A corresponding to the energy storage battery and the wireless power carrier primary coil, and the power supply output coil is the wireless power supply secondary coil B.

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