Polar multi-source zero-carbon self-sustaining power supply device and control method thereof

Abstract

This invention proposes a polar multi-source zero-carbon self-sustaining power supply device and its control method. The device includes: a wind power generation unit for wind power generation; a solar power generation unit for solar power generation; a thermoelectric power generation unit for thermoelectric power generation based on the temperature difference between the inside and outside of the casing; an energy storage unit electrically connected to the thermoelectric power generation unit, the wind power generation unit, and the solar power generation unit; a control unit disposed inside the casing and electrically connected to the thermoelectric power generation unit, the wind power generation unit, the solar power generation unit, the energy storage unit, and the monitoring unit; and a communication unit electrically connected to the control unit. The control unit is also used to determine the power supply mode of the monitoring unit based on ΔW0, ΔWa, ΔWb, and ΔWc. This invention, by utilizing multiple zero-carbon energy sources for power supply, not only effectively protects the environment and greatly improves energy utilization, but also enhances power supply efficiency and the stability of the overall device's power supply.

Description

Technical Field

[0001] This invention relates to the field of energy storage devices, and more specifically, to a polar multi-source zero-carbon self-holding power supply device and its control method. Background Technology

[0002] Currently, common weather station monitoring devices include mechanical weather stations, ultrasonic weather stations, portable mobile weather stations, and handheld weather stations. Automatic weather stations (mechanical type) are meteorological instruments that automatically observe, process, and transmit meteorological elements, consisting of sensors, data loggers, and external equipment. Through ground meteorological observations, their main function is to monitor real-time changes in meteorological elements such as wind, temperature, humidity, and air pressure.

[0003] In polar low-temperature environments, the power supply required for outdoor monitoring equipment has extremely high self-sustaining requirements under zero-carbon consumption mode. Traditional power supply methods for meteorological station monitoring devices in extreme outdoor environments are limited and cannot guarantee operational stability under low-temperature conditions. Summary of the Invention

[0004] In view of this, the present invention proposes a polar multi-source zero-carbon self-holding power supply device and its control method, aiming to solve the problem of how to improve the stability of power supply for outdoor monitoring equipment in extreme environments.

[0005] In one aspect, the present invention proposes a polar multi-source zero-carbon self-holding power supply device, comprising:

[0006] The casing contains a monitoring unit that monitors environmental information.

[0007] A wind power generation unit is installed outside the housing and is used to generate wind power.

[0008] A solar power generation unit is installed on the top surface of the housing for generating solar power;

[0009] Thermoelectric power generation units are located inside and outside the housing, respectively, and are used to generate electricity based on the temperature difference between the inside and outside of the housing.

[0010] An energy storage unit is disposed inside the housing and is electrically connected to the thermoelectric power generation unit, the wind power generation unit, and the solar power generation unit, respectively. The energy storage unit is used to store electrical energy. The thermoelectric power generation unit, the wind power generation unit, the solar power generation unit, and the energy storage unit are electrically connected to the monitoring unit to provide power to the monitoring unit.

[0011] A control unit is disposed inside the housing and is electrically connected to the thermoelectric power generation unit, wind power generation unit, solar power generation unit, energy storage unit and monitoring unit respectively. The control unit is used to control the thermoelectric power generation unit, wind power generation unit, solar power generation unit and energy storage unit to supply power to the monitoring unit respectively.

[0012] A communication unit, disposed inside the housing and electrically connected to the control unit, is used for communication with the server; wherein...

[0013] The control unit is also used to acquire the real-time power consumption △W0 of the monitoring unit, the real-time thermoelectric power generation △Wa of the thermoelectric power generation unit, the real-time wind power generation △Wb of the wind power generation unit, and the real-time solar power generation △Wc of the solar power generation unit.

[0014] The control unit is also used to determine the power supply mode of the monitoring unit based on △W0, △Wa, △Wb and △Wc:

[0015] When ΔWa>ΔW0, the thermoelectric generator unit supplies power to the monitoring unit.

[0016] When △Wb>△W0, the wind power generation unit supplies power to the monitoring unit;

[0017] When ΔWc > ΔW0, the solar power generation unit supplies power to the monitoring unit; wherein,

[0018] When △Wa, △Wb and △Wc are all greater than △W0, or two of them are greater than △W0, the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit is determined. According to the ranking result of the determined power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, the monitoring unit with the highest priority is selected to supply power.

[0019] When △Wa, △Wb, and △Wc are all less than or equal to △W0:

[0020] If △Wa+△Wb>△W0, then the thermoelectric power generation unit and the wind power generation unit are connected in parallel to supply power to the monitoring unit;

[0021] If △Wa+△Wc>△W0, then the thermoelectric power generation unit and the solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0022] If △Wb+△Wc>△W0, then the wind power generation unit and the solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0023] If △Wa+△Wb+△Wc>△W0, then the thermoelectric power generation unit, wind power generation unit and solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0024] When △Wa+△Wb+△Wc≤△W0, the energy storage unit supplies power to the monitoring unit.

[0025] Furthermore, the control unit is also used to determine the priority of the thermoelectric power generation unit, the wind power generation unit, and the solar power generation unit based on their real-time power generation, including:

[0026] The first preset priority A1, the second preset priority A2, the third preset priority A3 and the fourth preset priority A4 are preset, A1>A2>A3>A4; the first preset power generation W1, the second preset power generation W2, the third preset power generation W3 and the fourth preset power generation W4 are preset, W1>W2>W3>W4>△W0;

[0027] The power supply priorities of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit are determined based on the relationship between ΔWa, ΔWb, and ΔWc and each preset power generation.

[0028] When △Wa≥W1 or △Wb≥W1 or △Wc≥W1, the first preset priority A1 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0029] When W1>△Wa≥W2 or W1>△Wb≥W2 or W1>△Wc≥W2, the second preset priority A2 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0030] When W2>△Wa≥W3 or W2>△Wb≥W3 or W2>△Wc≥W3, the third preset priority A3 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0031] When W3 > △Wa ≥ W4 or W3 > △Wb ≥ W4 or W3 > △Wc ≥ W4, the fourth preset priority A4 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0032] After selecting the i-th preset priority Ai as the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, i = 1, 2, 3, 4, the priorities are sorted from high to low to obtain the priority list B [△Wn-Ai: △Wn-Ai: △Wn-Ai], n = a, b, c, where △Wn is △Wa, △Wb or △Wc. According to the priority list B, the thermoelectric power generation unit, wind power generation unit or solar power generation unit is determined to supply power to the monitoring unit, and the unit ranked first in the priority list B is selected to supply power to the monitoring unit.

[0033] Furthermore, the control unit is also configured to, after determining the priority list B[△Wn-Ai: △Wn-Ai: △Wn-Ai], include:

[0034] The first preset weight coefficient Q1, the second preset weight coefficient Q2, the third preset weight coefficient Q3 and the fourth preset weight coefficient Q4 are preset, and 2 > Q1 > Q2 > Q3 > Q4 > 1;

[0035] Based on the relationships between the real-time thermoelectric power generation △Wa, real-time wind power generation △Wb, and real-time solar power generation △Wc and each preset power generation, the weighting coefficients for the thermoelectric power generation unit, wind power generation unit, and solar power generation unit when supplying power to the monitoring unit are set:

[0036] When △Wn≥W1, the first preset weighting coefficient Q1 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0037] When W1>△Wn≥W2, the second preset weighting coefficient Q2 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0038] When W2>△Wn≥W3, the third preset weighting coefficient Q3 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0039] When W3>△Wn≥W4, the fourth preset weighting coefficient Q4 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0040] After selecting the i-th preset weight coefficient Qi as the weight coefficient when the thermoelectric power generation unit, wind power generation unit, and solar power generation unit supply power to the monitoring unit, i = 1, 2, 3, 4, the obtained weight coefficients are sorted from largest to smallest. Then, the priority list B is adjusted to the priority list C [△Wn-Qi: △Wn-Qi: △Wn-Qi]. Based on the sorting result of the priority list C, it is determined that one of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit will supply power to the monitoring unit.

[0041] Furthermore, the control unit is also configured to, after adjusting the priority list B to the priority list C [△Wn-Qi: △Wn-Qi: △Wn-Qi], include:

[0042] The first preset wind speed F1, the second preset wind speed F2, the third preset wind speed F3 and the fourth preset wind speed F4 are preset, and F1 < F2 < F3 < F4; the first preset adjustment coefficient a1, the second preset adjustment coefficient a2, the third preset adjustment coefficient a3 and the fourth preset adjustment coefficient a4 are preset, and 0.8 < a1 < a2 < a3 < a4 < 1;

[0043] Obtain the real-time wind speed ΔF of the current environment, and adjust the weighting coefficient Qi of the wind power generation unit when supplying power according to the relationship between the real-time wind speed ΔF and each preset wind speed:

[0044] When △F < F1, the weighting coefficient Qi of the wind power generation unit when supplying power is not adjusted.

[0045] When F1≤△F<F2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the wind power generation unit supplies power. The adjusted weight coefficient is Qi*a1.

[0046] When F2≤△F<F3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weight coefficient Qi when the wind power generation unit supplies power. The adjusted weight coefficient is Qi*a2.

[0047] When F3≤△F<F4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weighting coefficient Qi when the wind power generation unit supplies power. The adjusted weighting coefficient is Qi*a3.

[0048] When F4≤△F, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weighting coefficient Qi when the wind power generation unit supplies power. The adjusted weighting coefficient is Qi*a4.

[0049] Furthermore, the control unit is also used to preset a first preset solar irradiance Z1, a second preset solar irradiance Z2, a third preset solar irradiance Z3 and a fourth preset solar irradiance Z4, where Z1 < Z2 < Z3 < Z4.

[0050] The control unit is also used to obtain the real-time solar irradiance ΔZ of the current environment, and adjust the weighting coefficient Qi of the solar power generation unit when supplying power according to the relationship between ΔZ and each preset solar irradiance:

[0051] When △Z < Z1, the weighting coefficient Qi when the solar power generation unit supplies power is not adjusted.

[0052] When Z1≤△Z<Z2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the solar power generation unit supplies power. The adjusted weight coefficient is Qi*a1.

[0053] When Z2≤△Z<Z3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a2.

[0054] When Z3≤△Z<Z4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a3.

[0055] When Z4≤△Z, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a4.

[0056] Furthermore, the control unit is also used to preset a first preset temperature difference T1, a second preset temperature difference T2, a third preset temperature difference T3 and a fourth preset temperature difference T4, wherein T1 < T2 < T3 < T4;

[0057] The control unit is also used to acquire the real-time internal temperature ΔTa1 inside the shell and the real-time external temperature ΔTa2 outside the shell in the current environment, and adjust the weighting coefficient Qi when the thermoelectric generator supplies power according to the relationship between the temperature difference between ΔTa1 and ΔTa2 and each preset temperature difference:

[0058] When △Ta1-△Ta2<T1, the weighting coefficient Qi when the thermoelectric power generation unit supplies power is not adjusted.

[0059] When T1≤△Ta1-△Ta2<T2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a1.

[0060] When T2≤△Ta1-△Ta2<T3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a2.

[0061] When T3≤△Ta1-△Ta2<T4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a3.

[0062] When △Ta1-△Ta2≤△T, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a4.

[0063] After adjusting the weight coefficients of the thermoelectric power generation unit, wind power generation unit and solar power generation unit respectively by selecting the i-th preset wind speed adjustment coefficient ai, the adjusted priority list C [△Wn-Qi*ai: △Wn-Qi*ai: △Wn-Qi*ai] is obtained. According to the sorting result of the adjusted priority list C, the unit in the first position is selected to supply power to the monitoring unit.

[0064] Furthermore, the control unit is also configured to, when selecting the thermoelectric generator unit, wind power generator unit, or solar power generator unit to supply power to the monitoring unit, acquire the second real-time power generation ΔW2 of the thermoelectric generator unit, wind power generator unit, or solar power generator unit at preset time intervals, and determine whether to switch to the unit supplying power to the monitoring unit based on the difference between the second real-time power generation ΔW2 and ΔWn.

[0065] When △W2-△Wn≥0, the unit powered by the monitoring unit will not be switched.

[0066] When △W2-△Wn<0, the unit that supplies power to the monitoring unit will be switched to the unit ranked second in the priority list C.

[0067] Furthermore, the control unit is also configured to acquire the second real-time power generation ΔW2 of the thermoelectric power generation unit, wind power generation unit, or solar power generation unit at preset time intervals, including:

[0068] The first preset power generation difference Y1, the second preset power generation difference Y2, the third preset power generation difference Y3 and the fourth preset power generation difference Y4 are preset, and Y1 < Y2 < Y3 < Y4; the first preset duration S1, the second preset duration S2, the third preset duration S3 and the fourth preset duration S4 are preset, and S1 < S2 < S3 < S4.

[0069] The control unit is also used to obtain the historical average power generation W0 of the thermoelectric power generation unit, wind power generation unit, or solar power generation unit, and determine the interval for obtaining ΔWn and ΔW2 based on the relationship between the difference between W0 and ΔWn and the preset power generation differences:

[0070] When Y1 < △Wn - W0 ≤ Y2, the first preset duration S1 is selected as the interval duration for obtaining △Wn and △W2;

[0071] When Y2 < △Wn - W0 ≤ Y3, the second preset duration S2 is selected as the interval duration for obtaining △Wn and △W2;

[0072] When Y3 < △Wn - W0 ≤ Y4, the third preset duration S3 is selected as the interval duration for obtaining △Wn and △W2;

[0073] When Y4 < △Wn - W0, the fourth preset duration S4 is selected as the interval duration for obtaining △Wn and △W2.

[0074] On the other hand, the present invention also provides a control method for a polar multi-source zero-carbon self-holding power supply device. This method employs the aforementioned polar multi-source zero-carbon self-holding power supply device and includes:

[0075] The system acquires the real-time power consumption △W0 of the monitoring unit, the real-time thermoelectric power generation △Wa of the thermoelectric power generation unit, the real-time wind power generation △Wb of the wind power generation unit, and the real-time solar power generation △Wc of the solar power generation unit.

[0076] The power supply method of the monitoring unit is determined based on △W0, △Wa, △Wb, and △Wc:

[0077] When ΔWa>ΔW0, the thermoelectric generator unit supplies power to the monitoring unit.

[0078] When △Wb>△W0, the wind power generation unit supplies power to the monitoring unit;

[0079] When ΔWc > ΔW0, the solar power generation unit supplies power to the monitoring unit; wherein,

[0080] When △Wa, △Wb and △Wc are all greater than △W0, or two of them are greater than △W0, the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit is determined. According to the ranking result of the determined power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, the monitoring unit with the highest priority is selected to supply power.

[0081] When △Wa, △Wb, and △Wc are all less than or equal to △W0:

[0082] If △Wa+△Wb>△W0, then the thermoelectric power generation unit and the wind power generation unit are connected in parallel to supply power to the monitoring unit;

[0083] If △Wa+△Wc>△W0, then the thermoelectric power generation unit and the solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0084] If △Wb+△Wc>△W0, then the wind power generation unit and the solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0085] If △Wa+△Wb+△Wc>△W0, then the thermoelectric power generation unit, wind power generation unit and solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0086] When △Wa+△Wb+△Wc≤△W0, the energy storage unit supplies power to the monitoring unit.

[0087] Furthermore, when determining the power supply priority of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit, the priority is determined based on the real-time power generation of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit, including:

[0088] The first preset priority A1, the second preset priority A2, the third preset priority A3 and the fourth preset priority A4 are preset, A1>A2>A3>A4; the first preset power generation W1, the second preset power generation W2, the third preset power generation W3 and the fourth preset power generation W4 are preset, W1>W2>W3>W4>△W0;

[0089] The power supply priorities of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit are determined based on the relationship between ΔWa, ΔWb, and ΔWc and each preset power generation.

[0090] When △Wa≥W1 or △Wb≥W1 or △Wc≥W1, the first preset priority A1 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0091] When W1>△Wa≥W2 or W1>△Wb≥W2 or W1>△Wc≥W2, the second preset priority A2 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0092] When W2>△Wa≥W3 or W2>△Wb≥W3 or W2>△Wc≥W3, the third preset priority A3 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0093] When W3 > △Wa ≥ W4 or W3 > △Wb ≥ W4 or W3 > △Wc ≥ W4, the fourth preset priority A4 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0094] After selecting the i-th preset priority Ai as the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, i = 1, 2, 3, 4, the priorities are sorted from high to low to obtain the priority list B [△Wn-Ai: △Wn-Ai: △Wn-Ai], n = a, b, c, where △Wn is △Wa, △Wb or △Wc. According to the priority list B, the thermoelectric power generation unit, wind power generation unit or solar power generation unit is determined to supply power to the monitoring unit, and the unit ranked first in the priority list B is selected to supply power to the monitoring unit.

[0095] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention generates wind power through a wind power generation unit, generates solar power through a solar power generation unit, generates electricity through a thermoelectric generator unit based on the temperature difference between the inside and outside of the casing, generates electricity through a thermoelectric generator unit, and generates electricity through a storage unit that is electrically connected to the thermoelectric generator unit, the wind power generation unit, and the solar power generation unit respectively, and the storage unit is used to store electrical energy. The thermoelectric generator unit, the wind power generation unit, the solar power generation unit, and the storage unit are all electrically connected to a monitoring unit to provide power to the monitoring unit. The control unit is connected to the thermoelectric generator unit, the wind power generation unit, the solar power generation unit, and the storage unit respectively. The electrical unit, solar power generation unit, energy storage unit, and monitoring unit are electrically connected. The control unit controls the thermoelectric power generation unit, wind power generation unit, solar power generation unit, and energy storage unit to supply power to the monitoring unit. The control unit acquires the real-time power consumption ΔW0 of the monitoring unit, the real-time thermoelectric power generation ΔWa of the thermoelectric power generation unit, the real-time wind power generation ΔWb of the wind power generation unit, and the real-time solar power generation ΔWc of the solar power generation unit. Based on ΔW0, ΔWa, ΔWb, and ΔWc, the power supply mode of the monitoring unit is determined. This invention utilizes multiple zero-carbon energy sources for power supply, effectively protecting the environment, greatly improving energy utilization, enhancing power supply efficiency, and increasing the stability of the overall device's power supply.

[0096] Furthermore, this invention enables the field station power system to achieve self-sustaining operation under zero-carbon conditions in extreme environments. This invention makes full use of environmental energy sources, namely temperature difference, wind power, and solar energy, and achieves self-sustaining operation of the power system and long-term stable power supply to the load through efficient energy conversion, storage, and multi-path output of various energy sources.

[0097] Furthermore, this invention can fully utilize the temperature difference between the environment and the internal temperature of the power supply device in the sub-zero polar environment to generate electricity through thermoelectricity, thus avoiding the waste of heat during system operation. The thermoelectric power generation can supplement the system's energy, realizing the application of polar multi-source zero-carbon self-sustaining power supply. Attached Figure Description

[0098] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0099] Figure 1 This is a schematic diagram of the structure of the polar multi-source zero-carbon self-holding power supply device provided in an embodiment of the present invention;

[0100] Figure 2Functional block diagram of the polar multi-source zero-carbon self-holding power supply device provided in the embodiments of the present invention;

[0101] Figure 3 A flowchart of the control method for the polar multi-source zero-carbon self-holding power supply device provided in an embodiment of the present invention. Detailed Implementation

[0102] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0103] See Figure 1 As shown, the present invention proposes a polar multi-source zero-carbon self-sustaining power supply device, including a shell, a wind power generation unit, a solar power generation unit, a thermoelectric power generation unit, an energy storage unit, a control unit, and a communication unit. The shell is a box structure used to house and support the various components, and a monitoring unit is set inside it to monitor environmental information. A wind power generation unit is located outside the housing for generating wind power; a solar power generation unit is located on the top surface of the housing for generating solar power; a thermoelectric power generation unit is located inside and outside the housing for generating power based on the temperature difference between the inside and outside of the housing; an energy storage unit is located inside the housing and is electrically connected to the thermoelectric power generation unit, wind power generation unit, and solar power generation unit, respectively, and is used to store electrical energy; the thermoelectric power generation unit, wind power generation unit, solar power generation unit, and energy storage unit are all electrically connected to a monitoring unit to provide power to the monitoring unit; a control unit is located inside the housing and is electrically connected to the thermoelectric power generation unit, wind power generation unit, solar power generation unit, energy storage unit, and monitoring unit, respectively, and is used to control the thermoelectric power generation unit, wind power generation unit, solar power generation unit, and energy storage unit to supply power to the monitoring unit; a communication unit is located inside the housing and is electrically connected to the control unit for communicating with a server.

[0104] Specifically, the control unit is also used to acquire the real-time power consumption △W0 of the monitoring unit, the real-time thermoelectric power generation △Wa of the thermoelectric power generation unit, the real-time wind power generation △Wb of the wind power generation unit, and the real-time solar power generation △Wc of the solar power generation unit.

[0105] The real-time power consumption ΔW0 refers to the power consumption of the monitoring unit per unit time. For example, it can be the power consumption of the monitoring unit within 5 minutes, 10 minutes, or 30 minutes, which can be recorded as the real-time power consumption.

[0106] The power consumption △W0 can be set per unit time according to actual conditions. The real-time thermoelectric power generation △Wa, real-time wind power generation △Wb, and real-time solar power generation △Wc represent the power generation of the wind power unit, solar power unit, and thermoelectric power generation unit per unit time, respectively. For example, these figures can be used for wind power units, solar power units, and thermoelectric power generation units.

[0107] The power generation of the solar power unit and the thermoelectric power generation unit within 5 minutes, 10 minutes, or 30 minutes can be recorded as real-time thermoelectric power generation ΔWa, real-time wind power generation ΔWb, and real-time solar power generation, respectively.

[0108] The quantity △Wc, and the unit of time can be set according to the actual situation.

[0109] Specifically, the control unit is preferably a power system controller, which can collect information such as current, voltage and power, and can also control electrical equipment and power generation equipment.

[0110] Combination Figure 2 As shown, the wind power generation unit, solar power generation unit, and thermoelectric power generation unit are each connected to a DC-BUS via an ODC-DC converter to supply power. The control unit connects to the DC-BUS via a control bus.

[0111] The system connects to DC-DC converters connected to the wind power generation unit, solar power generation unit, and thermoelectric power generation unit respectively. This allows for the transmission of signals from the DC-DC converters to the control unit, and vice versa. This enables the acquisition of operating status information from the wind power generation unit, solar power generation unit, and thermoelectric power generation unit, as well as the control of these units. The control unit is electrically connected to a communication unit, allowing for communication with the service provider.

[0112] Data transmission, including receiving line control commands and transmitting working status information.

[0113] Specifically, the energy storage unit is also electrically connected to the control unit, which controls the energy storage unit and collects status data. The energy storage unit is preferably a battery. The wind power generation unit is preferably a vertical axis wind power generation device, the solar power generation unit is preferably a solar photovoltaic power generation device, and the thermoelectric power generation unit is preferably a thermoelectric power generation device. When the various devices inside the casing are operating, the temperature inside the casing is above 35°C, while the temperature outside the casing in polar environments is around -30°C or even lower. Therefore, by utilizing the temperature difference between the inside and outside of the casing, the thermoelectric power generation unit generates electricity to power the monitoring unit.

[0114] Specifically, the aforementioned wind power generation unit, solar power generation unit, and thermoelectric power generation unit can directly provide independent power to the monitoring unit, or provide power in parallel and in combination, and can also charge the energy storage unit.

[0115] Specifically, the housing is also equipped with a wind speed sensor, a solar radiation sensor, and a temperature sensor. The wind speed sensor, solar radiation sensor, and temperature sensor are electrically connected to the control unit. The wind speed sensor is used to collect wind speed and air volume information at the location of the housing. The solar radiation sensor is used to collect solar irradiance information at the location of the line. The temperature sensor is used to collect temperature information at the location of the housing. The collected wind speed and air volume information, solar irradiance information, and temperature information are transmitted to the control unit for data processing.

[0116] Specifically, the control unit is also used to determine the power supply mode of the monitoring unit based on ΔW0, ΔWa, ΔWb, and ΔWc:

[0117] When ΔWa>ΔW0, the thermoelectric generator unit supplies power to the monitoring unit.

[0118] When △Wb>△W0, the wind power generation unit supplies power to the monitoring unit;

[0119] When ΔWc > ΔW0, the solar power generation unit supplies power to the monitoring unit; wherein,

[0120] When △Wa, △Wb and △Wc are all greater than △W0, or two of them are greater than △W0, the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit is determined. According to the ranking result of the determined power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, the monitoring unit with the highest priority is selected to supply power.

[0121] When △Wa, △Wb, and △Wc are all less than or equal to △W0:

[0122] If △Wa+△Wb>△W0, then the thermoelectric power generation unit and the wind power generation unit are connected in parallel to supply power to the monitoring unit;

[0123] If △Wa+△Wc>△W0, then the thermoelectric power generation unit and the solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0124] If △Wb+△Wc>△W0, then the wind power generation unit and the solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0125] If △Wa+△Wb+△Wc>△W0, then the thermoelectric power generation unit, wind power generation unit and solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0126] When △Wa+△Wb+△Wc≤△W0, the energy storage unit supplies power to the monitoring unit.

[0127] Specifically, the control unit is further configured to determine the priority of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit based on the real-time power generation of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit when determining their power supply priorities, including:

[0128] The first preset priority A1, the second preset priority A2, the third preset priority A3 and the fourth preset priority A4 are preset, A1>A2>A3>A4; the first preset power generation W1, the second preset power generation W2, the third preset power generation W3 and the fourth preset power generation W4 are preset, W1>W2>W3>W4>△W0;

[0129] The power supply priorities of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit are determined based on the relationship between ΔWa, ΔWb, and ΔWc and each preset power generation.

[0130] When △Wa≥W1 or △Wb≥W1 or △Wc≥W1, the first preset priority A1 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0131] When W1>△Wa≥W2 or W1>△Wb≥W2 or W1>△Wc≥W2, the second preset priority A2 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0132] When W2>△Wa≥W3 or W2>△Wb≥W3 or W2>△Wc≥W3, the third preset priority A3 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0133] When W3 > △Wa ≥ W4 or W3 > △Wb ≥ W4 or W3 > △Wc ≥ W4, the fourth preset priority A4 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0134] After selecting the i-th preset priority Ai as the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, i = 1, 2, 3, 4, the priorities are sorted from high to low to obtain the priority list B [△Wn-Ai: △Wn-Ai: △Wn-Ai], n = a, b, c, where △Wn is △Wa, △Wb or △Wc. According to the priority list B, the thermoelectric power generation unit, wind power generation unit or solar power generation unit is determined to supply power to the monitoring unit, and the unit ranked first in the priority list B is selected to supply power to the monitoring unit.

[0135] Specifically, the control unit is further configured to, after determining the priority list B[△Wn-Ai: △Wn-Ai: △Wn-Ai], include:

[0136] The first preset weight coefficient Q1, the second preset weight coefficient Q2, the third preset weight coefficient Q3 and the fourth preset weight coefficient Q4 are preset, and 2 > Q1 > Q2 > Q3 > Q4 > 1;

[0137] Based on the relationships between the real-time thermoelectric power generation △Wa, real-time wind power generation △Wb, and real-time solar power generation △Wc and each preset power generation, the weighting coefficients for the thermoelectric power generation unit, wind power generation unit, and solar power generation unit when supplying power to the monitoring unit are set:

[0138] When △Wn≥W1, the first preset weighting coefficient Q1 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0139] When W1>△Wn≥W2, the second preset weighting coefficient Q2 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0140] When W2>△Wn≥W3, the third preset weighting coefficient Q3 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0141] When W3>△Wn≥W4, the fourth preset weighting coefficient Q4 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0142] After selecting the i-th preset weight coefficient Qi as the weight coefficient when the thermoelectric power generation unit, wind power generation unit, and solar power generation unit supply power to the monitoring unit, i = 1, 2, 3, 4, the obtained weight coefficients are sorted from largest to smallest. Then, the priority list B is adjusted to the priority list C [△Wn-Qi: △Wn-Qi: △Wn-Qi]. Based on the sorting result of the priority list C, it is determined that one of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit will supply power to the monitoring unit.

[0143] Specifically, the control unit is further configured to, after adjusting the priority list B to the priority list C [△Wn-Qi: △Wn-Qi: △Wn-Qi], include:

[0144] The first preset wind speed F1, the second preset wind speed F2, the third preset wind speed F3 and the fourth preset wind speed F4 are preset, and F1 < F2 < F3 < F4; the first preset adjustment coefficient a1, the second preset adjustment coefficient a2, the third preset adjustment coefficient a3 and the fourth preset adjustment coefficient a4 are preset, and 0.8 < a1 < a2 < a3 < a4 < 1;

[0145] Obtain the real-time wind speed ΔF of the current environment, and adjust the weighting coefficient Qi of the wind power generation unit when supplying power according to the relationship between the real-time wind speed ΔF and each preset wind speed:

[0146] When △F < F1, the weighting coefficient Qi of the wind power generation unit when supplying power is not adjusted.

[0147] When F1≤△F<F2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the wind power generation unit supplies power. The adjusted weight coefficient is Qi*a1.

[0148] When F2≤△F<F3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weight coefficient Qi when the wind power generation unit supplies power. The adjusted weight coefficient is Qi*a2.

[0149] When F3≤△F<F4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weighting coefficient Qi when the wind power generation unit supplies power. The adjusted weighting coefficient is Qi*a3.

[0150] When F4≤△F, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weighting coefficient Qi when the wind power generation unit supplies power. The adjusted weighting coefficient is Qi*a4.

[0151] Specifically, the control unit is also used to preset a first preset solar irradiance Z1, a second preset solar irradiance Z2, a third preset solar irradiance Z3 and a fourth preset solar irradiance Z4, and Z1 < Z2 < Z3 < Z4.

[0152] The control unit is also used to obtain the real-time solar irradiance ΔZ of the current environment, and adjust the weighting coefficient Qi of the solar power generation unit when supplying power according to the relationship between ΔZ and each preset solar irradiance:

[0153] When △Z < Z1, the weighting coefficient Qi when the solar power generation unit supplies power is not adjusted.

[0154] When Z1≤△Z<Z2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the solar power generation unit supplies power. The adjusted weight coefficient is Qi*a1.

[0155] When Z2≤△Z<Z3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a2.

[0156] When Z3≤△Z<Z4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a3.

[0157] When Z4≤△Z, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a4.

[0158] Specifically, the control unit is also used to preset a first preset temperature difference T1, a second preset temperature difference T2, a third preset temperature difference T3 and a fourth preset temperature difference T4, where T1 < T2 < T3 < T4.

[0159] The control unit is also used to acquire the real-time internal temperature ΔTa1 inside the shell and the real-time external temperature ΔTa2 outside the shell in the current environment, and adjust the weighting coefficient Qi when the thermoelectric generator supplies power according to the relationship between the temperature difference between ΔTa1 and ΔTa2 and each preset temperature difference:

[0160] When △Ta1-△Ta2<T1, the weighting coefficient Qi when the thermoelectric power generation unit supplies power is not adjusted.

[0161] When T1≤△Ta1-△Ta2<T2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a1.

[0162] When T2≤△Ta1-△Ta2<T3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a2.

[0163] When T3≤△Ta1-△Ta2<T4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a3.

[0164] When △Ta1-△Ta2≤△T, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a4.

[0165] After adjusting the weight coefficients of the thermoelectric power generation unit, wind power generation unit and solar power generation unit respectively by selecting the i-th preset wind speed adjustment coefficient ai, the adjusted priority list C [△Wn-Qi*ai: △Wn-Qi*ai: △Wn-Qi*ai] is obtained. According to the sorting result of the adjusted priority list C, the unit in the first position is selected to supply power to the monitoring unit.

[0166] Specifically, the control unit is also used to acquire the second real-time power generation ΔW2 of the selected thermoelectric power generation unit, wind power generation unit, or solar power generation unit at preset time intervals when the selected thermoelectric power generation unit, wind power generation unit, or solar power generation unit supplies power to the monitoring unit, and determine whether to switch to the unit supplying power to the monitoring unit based on the difference between the second real-time power generation ΔW2 and ΔWn.

[0167] When △W2-△Wn≥0, the unit powered by the monitoring unit will not be switched.

[0168] When △W2-△Wn<0, the unit that supplies power to the monitoring unit will be switched to the unit ranked second in the priority list C.

[0169] Specifically, the control unit is also used to acquire the second real-time power generation ΔW2 of the thermoelectric power generation unit, wind power generation unit, or solar power generation unit at preset time intervals, including:

[0170] The first preset power generation difference Y1, the second preset power generation difference Y2, the third preset power generation difference Y3 and the fourth preset power generation difference Y4 are preset, and Y1 < Y2 < Y3 < Y4; the first preset duration S1, the second preset duration S2, the third preset duration S3 and the fourth preset duration S4 are preset, and S1 < S2 < S3 < S4.

[0171] The control unit is also used to obtain the historical average power generation W0 of the thermoelectric power generation unit, wind power generation unit, or solar power generation unit, and determine the interval for obtaining ΔWn and ΔW2 based on the relationship between the difference between W0 and ΔWn and the preset power generation differences:

[0172] When Y1 < △Wn - W0 ≤ Y2, the first preset duration S1 is selected as the interval duration for obtaining △Wn and △W2;

[0173] When Y2 < △Wn - W0 ≤ Y3, the second preset duration S2 is selected as the interval duration for obtaining △Wn and △W2;

[0174] When Y3 < △Wn - W0 ≤ Y4, the third preset duration S3 is selected as the interval duration for obtaining △Wn and △W2;

[0175] When Y4 < △Wn - W0, the fourth preset duration S4 is selected as the interval duration for obtaining △Wn and △W2.

[0176] The above embodiments combine solar energy, wind power, thermoelectric power generation, and batteries to achieve a multi-source, zero-carbon self-sustaining power supply in polar environments. Based on the sub-zero temperatures of the polar environment, these embodiments fully utilize the temperature difference between the environment and the internal temperature of the power supply device. The thermoelectric power generation avoids heat waste during system operation and supplements the system's energy, thus realizing the application of a multi-source, zero-carbon self-sustaining power supply in polar regions.

[0177] As can be seen, the above embodiment uses a wind power generation unit for wind power generation, a solar power generation unit for solar power generation, a thermoelectric power generation unit for thermoelectric power generation based on the temperature difference between the inside and outside of the casing, an energy storage unit electrically connected to the thermoelectric power generation unit, the wind power generation unit, and the solar power generation unit respectively, and the energy storage unit for storing electrical energy. The thermoelectric power generation unit, the wind power generation unit, the solar power generation unit, and the energy storage unit are all electrically connected to a monitoring unit to provide power to the monitoring unit. A control unit is electrically connected to the thermoelectric power generation unit, the wind power generation unit, the solar power generation unit, the energy storage unit, and the monitoring unit respectively, and the control unit controls the thermoelectric power generation unit, the wind power generation unit, the solar power generation unit, and the energy storage unit to supply power to the monitoring unit. The control unit obtains the real-time power consumption ΔW0 of the monitoring unit, the real-time thermoelectric power generation ΔWa of the thermoelectric power generation unit, the real-time wind power generation ΔWb of the wind power generation unit, and the real-time solar power generation ΔWc of the solar power generation unit, and determines the power supply mode of the monitoring unit based on ΔW0, ΔWa, ΔWb, and ΔWc. The above embodiments utilize various zero-carbon energy sources for power supply, which not only effectively protects the environment and greatly improves energy utilization, but also enhances power supply efficiency and the stability of the overall device's power supply.

[0178] It is understandable that the above embodiments are designed to achieve self-sustaining operation of the field station power system under zero-carbon conditions in extreme environments. These embodiments fully utilize environmental energy sources, namely the abundant wind power in polar regions and the ample solar energy during the polar day. Simultaneously, a cold-end thermoelectric generator is installed outside the power supply box, and a hot-end thermoelectric generator is installed inside. Since the internal temperature of the power supply is maintained at approximately 35 degrees Celsius during operation, while the external ambient temperature is around -30 degrees Celsius, the use of thermoelectric generators avoids the waste of heat during system operation, thus supplementing the system's energy. The entire polar outdoor power supply achieves self-sufficiency and long-term stable power supply to the load through efficient energy conversion, storage, and multi-path output of various energy sources.

[0179] Furthermore, the above embodiments enable the field station power system to achieve self-sustaining operation under zero-carbon conditions in extreme environments. The present invention makes full use of environmental energy, namely temperature difference, wind power and solar energy, and achieves self-protection of the power system and long-term stable power supply to the load through efficient energy conversion, storage and multi-path output of various energy sources.

[0180] Furthermore, in the polar sub-zero environment, the above embodiments fully utilize the temperature difference between the environment and the internal temperature of the power supply device to generate electricity through thermoelectricity, thus avoiding the waste of heat during system operation. The thermoelectricity generates electricity to supplement the system's energy, realizing the application of polar multi-source zero-carbon self-sustaining power supply.

[0181] In another preferred embodiment based on the above embodiments, see [link to previous document]. Figure 3 As shown, this embodiment provides a control method for a polar multi-source zero-carbon self-holding power supply device. This method uses the polar multi-source zero-carbon self-holding power supply device described in the above embodiment and includes the following steps:

[0182] Step S100: Obtain the real-time power consumption △W0 of the monitoring unit, the real-time thermoelectric power generation △Wa of the thermoelectric power generation unit, the real-time wind power generation △Wb of the wind power generation unit, and the real-time solar power generation △Wc of the solar power generation unit.

[0183] Step S200: Determine the power supply mode of the monitoring unit based on △W0, △Wa, △Wb and △Wc.

[0184] In step S200, determining the power supply mode of the monitoring unit based on △W0, △Wa, △Wb, and △Wc includes:

[0185] When ΔWa>ΔW0, the thermoelectric generator unit supplies power to the monitoring unit.

[0186] When △Wb>△W0, the wind power generation unit supplies power to the monitoring unit;

[0187] When ΔWc > ΔW0, the solar power generation unit supplies power to the monitoring unit; wherein,

[0188] When △Wa, △Wb and △Wc are all greater than △W0, or two of them are greater than △W0, the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit is determined. According to the ranking result of the determined power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, the monitoring unit with the highest priority is selected to supply power.

[0189] When △Wa, △Wb, and △Wc are all less than or equal to △W0:

[0190] If △Wa+△Wb>△W0, then the thermoelectric power generation unit and the wind power generation unit are connected in parallel to supply power to the monitoring unit;

[0191] If △Wa+△Wc>△W0, then the thermoelectric power generation unit and the solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0192] If △Wb+△Wc>△W0, then the wind power generation unit and the solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0193] If △Wa+△Wb+△Wc>△W0, then the thermoelectric power generation unit, wind power generation unit and solar power generation unit are connected in parallel to supply power to the monitoring unit;

[0194] When △Wa+△Wb+△Wc≤△W0, the energy storage unit supplies power to the monitoring unit.

[0195] Specifically, when determining the power supply priority of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit, the priority is determined based on the real-time power generation of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit, including:

[0196] The first preset priority A1, the second preset priority A2, the third preset priority A3 and the fourth preset priority A4 are preset, A1>A2>A3>A4; the first preset power generation W1, the second preset power generation W2, the third preset power generation W3 and the fourth preset power generation W4 are preset, W1>W2>W3>W4>△W0;

[0197] The power supply priorities of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit are determined based on the relationship between ΔWa, ΔWb, and ΔWc and each preset power generation.

[0198] When △Wa≥W1 or △Wb≥W1 or △Wc≥W1, the first preset priority A1 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0199] When W1>△Wa≥W2 or W1>△Wb≥W2 or W1>△Wc≥W2, the second preset priority A2 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0200] When W2>△Wa≥W3 or W2>△Wb≥W3 or W2>△Wc≥W3, the third preset priority A3 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0201] When W3 > △Wa ≥ W4 or W3 > △Wb ≥ W4 or W3 > △Wc ≥ W4, the fourth preset priority A4 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit.

[0202] After selecting the i-th preset priority Ai as the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, i = 1, 2, 3, 4, the priorities are sorted from high to low to obtain the priority list B [△Wn-Ai: △Wn-Ai: △Wn-Ai], n = a, b, c, where △Wn is △Wa, △Wb or △Wc. According to the priority list B, the thermoelectric power generation unit, wind power generation unit or solar power generation unit is determined to supply power to the monitoring unit, and the unit ranked first in the priority list B is selected to supply power to the monitoring unit.

[0203] Specifically, after determining the priority list B[△Wn-Ai: △Wn-Ai: △Wn-Ai], it includes:

[0204] The first preset weight coefficient Q1, the second preset weight coefficient Q2, the third preset weight coefficient Q3 and the fourth preset weight coefficient Q4 are preset, and 2 > Q1 > Q2 > Q3 > Q4 > 1;

[0205] Based on the relationships between the real-time thermoelectric power generation △Wa, real-time wind power generation △Wb, and real-time solar power generation △Wc and each preset power generation, the weighting coefficients for the thermoelectric power generation unit, wind power generation unit, and solar power generation unit when supplying power to the monitoring unit are set:

[0206] When △Wn≥W1, the first preset weighting coefficient Q1 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0207] When W1>△Wn≥W2, the second preset weighting coefficient Q2 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0208] When W2>△Wn≥W3, the third preset weighting coefficient Q3 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0209] When W3>△Wn≥W4, the fourth preset weighting coefficient Q4 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit.

[0210] After selecting the i-th preset weight coefficient Qi as the weight coefficient when the thermoelectric power generation unit, wind power generation unit, and solar power generation unit supply power to the monitoring unit, i = 1, 2, 3, 4, the obtained weight coefficients are sorted from largest to smallest. Then, the priority list B is adjusted to the priority list C [△Wn-Qi: △Wn-Qi: △Wn-Qi]. Based on the sorting result of the priority list C, it is determined that one of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit will supply power to the monitoring unit.

[0211] Specifically, after adjusting the priority list B to the priority list C [△Wn-Qi: △Wn-Qi: △Wn-Qi], the following is included:

[0212] The first preset wind speed F1, the second preset wind speed F2, the third preset wind speed F3 and the fourth preset wind speed F4 are preset, and F1 < F2 < F3 < F4; the first preset adjustment coefficient a1, the second preset adjustment coefficient a2, the third preset adjustment coefficient a3 and the fourth preset adjustment coefficient a4 are preset, and 0.8 < a1 < a2 < a3 < a4 < 1;

[0213] Obtain the real-time wind speed ΔF of the current environment, and adjust the weighting coefficient Qi of the wind power generation unit when supplying power according to the relationship between the real-time wind speed ΔF and each preset wind speed:

[0214] When △F < F1, the weighting coefficient Qi of the wind power generation unit when supplying power is not adjusted.

[0215] When F1≤△F<F2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the wind power generation unit supplies power. The adjusted weight coefficient is Qi*a1.

[0216] When F2≤△F<F3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weight coefficient Qi when the wind power generation unit supplies power. The adjusted weight coefficient is Qi*a2.

[0217] When F3≤△F<F4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weighting coefficient Qi when the wind power generation unit supplies power. The adjusted weighting coefficient is Qi*a3.

[0218] When F4≤△F, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weighting coefficient Qi when the wind power generation unit supplies power. The adjusted weighting coefficient is Qi*a4.

[0219] Specifically, a first preset solar irradiance Z1, a second preset solar irradiance Z2, a third preset solar irradiance Z3 and a fourth preset solar irradiance Z4 are preset, and Z1 < Z2 < Z3 < Z4.

[0220] Obtain the real-time solar irradiance ΔZ of the current environment, and adjust the weighting coefficient Qi of the solar power generation unit when supplying power according to the relationship between ΔZ and each preset solar irradiance:

[0221] When △Z < Z1, the weighting coefficient Qi when the solar power generation unit supplies power is not adjusted.

[0222] When Z1≤△Z<Z2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the solar power generation unit supplies power. The adjusted weight coefficient is Qi*a1.

[0223] When Z2≤△Z<Z3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a2.

[0224] When Z3≤△Z<Z4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a3.

[0225] When Z4≤△Z, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a4.

[0226] Specifically, a first preset temperature difference T1, a second preset temperature difference T2, a third preset temperature difference T3 and a fourth preset temperature difference T4 are preset, and T1 < T2 < T3 < T4;

[0227] The real-time internal temperature ΔTa1 inside the shell and the real-time external temperature ΔTa2 outside the shell are obtained. The weighting coefficient Qi of the thermoelectric generator unit when supplying power is adjusted according to the relationship between the temperature difference between ΔTa1 and ΔTa2 and each preset temperature difference.

[0228] When △Ta1-△Ta2<T1, the weighting coefficient Qi when the thermoelectric power generation unit supplies power is not adjusted.

[0229] When T1≤△Ta1-△Ta2<T2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a1.

[0230] When T2≤△Ta1-△Ta2<T3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a2.

[0231] When T3≤△Ta1-△Ta2<T4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a3.

[0232] When △Ta1-△Ta2≤△T, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a4.

[0233] After adjusting the weight coefficients of the thermoelectric power generation unit, wind power generation unit and solar power generation unit respectively by selecting the i-th preset wind speed adjustment coefficient ai, the adjusted priority list C [△Wn-Qi*ai: △Wn-Qi*ai: △Wn-Qi*ai] is obtained. According to the sorting result of the adjusted priority list C, the unit in the first position is selected to supply power to the monitoring unit.

[0234] Specifically, when the thermoelectric power generation unit, wind power generation unit, or solar power generation unit is selected to supply power to the monitoring unit, the second real-time power generation ΔW2 of the thermoelectric power generation unit, wind power generation unit, or solar power generation unit is acquired at preset time intervals. The difference between the second real-time power generation ΔW2 and ΔWn is used to determine whether to switch to the unit supplying power to the monitoring unit.

[0235] When △W2-△Wn≥0, the unit powered by the monitoring unit will not be switched.

[0236] When △W2-△Wn<0, the unit that supplies power to the monitoring unit will be switched to the unit ranked second in the priority list C.

[0237] Specifically, when acquiring the second real-time power generation ΔW2 of the thermoelectric power generation unit, wind power generation unit, or solar power generation unit at preset intervals, it includes:

[0238] The first preset power generation difference Y1, the second preset power generation difference Y2, the third preset power generation difference Y3 and the fourth preset power generation difference Y4 are preset, and Y1 < Y2 < Y3 < Y4; the first preset duration S1, the second preset duration S2, the third preset duration S3 and the fourth preset duration S4 are preset, and S1 < S2 < S3 < S4.

[0239] Obtain the historical average power generation W0 of the thermoelectric power generation unit, wind power generation unit, or solar power generation unit. Based on the relationship between the difference between W0 and ΔWn and the preset power generation differences, determine the interval for obtaining ΔWn and ΔW2.

[0240] When Y1 < △Wn - W0 ≤ Y2, the first preset duration S1 is selected as the interval duration for obtaining △Wn and △W2;

[0241] When Y2 < △Wn - W0 ≤ Y3, the second preset duration S2 is selected as the interval duration for obtaining △Wn and △W2;

[0242] When Y3 < △Wn - W0 ≤ Y4, the third preset duration S3 is selected as the interval duration for obtaining △Wn and △W2;

[0243] When Y4 < △Wn - W0, the fourth preset duration S4 is selected as the interval duration for obtaining △Wn and △W2.

[0244] The above embodiments combine solar energy, wind power, thermoelectric power generation, and batteries to achieve a multi-source, zero-carbon self-sustaining power supply in polar environments. Based on the sub-zero temperatures of the polar environment, these embodiments fully utilize the temperature difference between the environment and the internal temperature of the power supply device. The thermoelectric power generation avoids heat waste during system operation and supplements the system's energy, thus realizing the application of a multi-source, zero-carbon self-sustaining power supply in polar regions.

[0245] As can be seen, the above embodiment uses a wind power generation unit for wind power generation, a solar power generation unit for solar power generation, a thermoelectric power generation unit for thermoelectric power generation based on the temperature difference between the inside and outside of the casing, an energy storage unit electrically connected to the thermoelectric power generation unit, the wind power generation unit, and the solar power generation unit respectively, and the energy storage unit for storing electrical energy. The thermoelectric power generation unit, the wind power generation unit, the solar power generation unit, and the energy storage unit are all electrically connected to a monitoring unit to provide power to the monitoring unit. A control unit is electrically connected to the thermoelectric power generation unit, the wind power generation unit, the solar power generation unit, the energy storage unit, and the monitoring unit respectively, and the control unit controls the thermoelectric power generation unit, the wind power generation unit, the solar power generation unit, and the energy storage unit to supply power to the monitoring unit. The control unit obtains the real-time power consumption ΔW0 of the monitoring unit, the real-time thermoelectric power generation ΔWa of the thermoelectric power generation unit, the real-time wind power generation ΔWb of the wind power generation unit, and the real-time solar power generation ΔWc of the solar power generation unit, and determines the power supply mode of the monitoring unit based on ΔW0, ΔWa, ΔWb, and ΔWc. The above embodiments utilize various zero-carbon energy sources for power supply, which not only effectively protects the environment and greatly improves energy utilization, but also enhances power supply efficiency and the stability of the overall device's power supply.

[0246] It is understandable that the above embodiments are designed to achieve self-sustaining operation of the field station power system under zero-carbon conditions in extreme environments. These embodiments fully utilize environmental energy sources, namely the abundant wind power in polar regions and the ample solar energy during the polar day. Simultaneously, a cold-end thermoelectric generator is installed outside the power supply box, and a hot-end thermoelectric generator is installed inside. Since the internal temperature of the power supply is maintained at approximately 35 degrees Celsius during operation, while the external ambient temperature is around -30 degrees Celsius, the use of thermoelectric generators avoids the waste of heat during system operation, thus supplementing the system's energy. The entire polar outdoor power supply achieves self-sufficiency and long-term stable power supply to the load through efficient energy conversion, storage, and multi-path output of various energy sources.

[0247] Furthermore, the above embodiments enable the field station power system to achieve self-sustaining operation under zero-carbon conditions in extreme environments. The present invention makes full use of environmental energy, namely temperature difference, wind power and solar energy, and achieves self-protection of the power system and long-term stable power supply to the load through efficient energy conversion, storage and multi-path output of various energy sources.

[0248] Furthermore, in the polar sub-zero environment, the above embodiments fully utilize the temperature difference between the environment and the internal temperature of the power supply device to generate electricity through thermoelectricity, thus avoiding the waste of heat during system operation. The thermoelectricity generates electricity to supplement the system's energy, realizing the application of polar multi-source zero-carbon self-sustaining power supply.

[0249] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0250] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0251] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0252] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0253] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A polar multi-source zero-carbon self-holding power supply device, characterized in that, include: The casing contains a monitoring unit that monitors environmental information. A wind power generation unit is installed outside the housing and is used to generate wind power. A solar power generation unit is installed on the top surface of the housing for generating solar power; Thermoelectric power generation units are located inside and outside the housing, respectively, and are used to generate electricity based on the temperature difference between the inside and outside of the housing. An energy storage unit is disposed inside the housing and is electrically connected to the thermoelectric power generation unit, the wind power generation unit, and the solar power generation unit, respectively. The energy storage unit is used to store electrical energy. The thermoelectric power generation unit, the wind power generation unit, the solar power generation unit, and the energy storage unit are electrically connected to the monitoring unit to provide power to the monitoring unit. A control unit is disposed inside the housing and is electrically connected to the thermoelectric power generation unit, wind power generation unit, solar power generation unit, energy storage unit and monitoring unit respectively. The control unit is used to control the thermoelectric power generation unit, wind power generation unit, solar power generation unit and energy storage unit to supply power to the monitoring unit respectively. A communication unit, disposed inside the housing and electrically connected to the control unit, is used for communication with the server; wherein... The control unit is also used to acquire the real-time power consumption △W0 of the monitoring unit, the real-time thermoelectric power generation △Wa of the thermoelectric power generation unit, the real-time wind power generation △Wb of the wind power generation unit, and the real-time solar power generation △Wc of the solar power generation unit. The control unit is also used to determine the power supply mode of the monitoring unit based on △W0, △Wa, △Wb and △Wc: When ΔWa>ΔW0, the thermoelectric generator unit supplies power to the monitoring unit. When △Wb>△W0, the wind power generation unit supplies power to the monitoring unit; When ΔWc > ΔW0, the solar power generation unit supplies power to the monitoring unit; wherein, When △Wa, △Wb and △Wc are all greater than △W0, or two of them are greater than △W0, the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit is determined. According to the ranking result of the determined power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, the monitoring unit with the highest priority is selected to supply power. include: The first preset priority A1, the second preset priority A2, the third preset priority A3 and the fourth preset priority A4 are preset, A1>A2>A3>A4; the first preset power generation W1, the second preset power generation W2, the third preset power generation W3 and the fourth preset power generation W4 are preset, W1>W2>W3>W4>△W0; The power supply priorities of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit are determined based on the relationship between ΔWa, ΔWb, and ΔWc and each preset power generation. When △Wa≥W1 or △Wb≥W1 or △Wc≥W1, the first preset priority A1 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit. When W1>△Wa≥W2 or W1>△Wb≥W2 or W1>△Wc≥W2, the second preset priority A2 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit. When W2>△Wa≥W3 or W2>△Wb≥W3 or W2>△Wc≥W3, the third preset priority A3 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit. When W3 > △Wa ≥ W4 or W3 > △Wb ≥ W4 or W3 > △Wc ≥ W4, the fourth preset priority A4 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit. After selecting the i-th preset priority Ai as the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, i=1, 2, 3, 4, the priorities are sorted from high to low to obtain the priority list B[△Wa-Ai: △Wb-Ai: △Wc-Ai]. According to the priority list B, it is determined whether the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit. The unit ranked first in the priority list B is selected to supply power to the monitoring unit.

2. The polar multi-source zero-carbon self-holding power supply device according to claim 1, characterized in that, The control unit is further configured to, after determining the priority list B [△Wa-Ai: △Wb-Ai: △Wc-Ai], include: The first preset weight coefficient Q1, the second preset weight coefficient Q2, the third preset weight coefficient Q3 and the fourth preset weight coefficient Q4 are preset, and 2 > Q1 > Q2 > Q3 > Q4 > 1; Based on the relationships between the real-time thermoelectric power generation △Wa, real-time wind power generation △Wb, and real-time solar power generation △Wc and each preset power generation, the weighting coefficients for the thermoelectric power generation unit, wind power generation unit, and solar power generation unit when supplying power to the monitoring unit are set: When △Wn≥W1, the first preset weighting coefficient Q1 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit. When W1>△Wn≥W2, the second preset weighting coefficient Q2 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit. When W2>△Wn≥W3, the third preset weighting coefficient Q3 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit. When W3>△Wn≥W4, the fourth preset weighting coefficient Q4 is set as the weighting coefficient when the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit. After selecting the i-th preset weight coefficient Qi as the weight coefficient when the thermoelectric power generation unit, wind power generation unit, and solar power generation unit supply power to the monitoring unit, i=1, 2, 3, 4, the obtained weight coefficients are sorted from largest to smallest. Then, the priority list B is adjusted to the priority list C [△Wa-Qi: △Wb-Qi: △Wc-Qi]. According to the sorting result of the priority list C, it is determined that one of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit will supply power to the monitoring unit.

3. The polar multi-source zero-carbon self-holding power supply device according to claim 2, characterized in that, The control unit is further configured to, after adjusting the priority list B to the priority list C [△Wa-Qi: △Wb-Qi: △Wc-Qi], include: The first preset wind speed F1, the second preset wind speed F2, the third preset wind speed F3 and the fourth preset wind speed F4 are preset, and F1 < F2 < F3 < F4; the first preset adjustment coefficient a1, the second preset adjustment coefficient a2, the third preset adjustment coefficient a3 and the fourth preset adjustment coefficient a4 are preset, and 0.8 < a1 < a2 < a3 < a4 < 1; Obtain the real-time wind speed ΔF of the current environment, and adjust the weighting coefficient Qi of the wind power generation unit when supplying power according to the relationship between the real-time wind speed ΔF and each preset wind speed: When △F < F1, the weighting coefficient Qi of the wind power generation unit when supplying power is not adjusted. When F1≤△F<F2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the wind power generation unit supplies power. The adjusted weight coefficient is Qi*a1. When F2≤△F<F3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weight coefficient Qi when the wind power generation unit supplies power. The adjusted weight coefficient is Qi*a2. When F3≤△F<F4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weighting coefficient Qi when the wind power generation unit supplies power. The adjusted weighting coefficient is Qi*a3. When F4≤△F, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weighting coefficient Qi when the wind power generation unit supplies power. The adjusted weighting coefficient is Qi*a4.

4. The polar multi-source zero-carbon self-holding power supply device according to claim 3, characterized in that, The control unit is also used to preset a first preset solar irradiance Z1, a second preset solar irradiance Z2, a third preset solar irradiance Z3 and a fourth preset solar irradiance Z4, and Z1 < Z2 < Z3 < Z4. The control unit is also used to obtain the real-time solar irradiance ΔZ of the current environment, and adjust the weighting coefficient Qi of the solar power generation unit when supplying power according to the relationship between ΔZ and each preset solar irradiance: When △Z < Z1, the weighting coefficient Qi when the solar power generation unit supplies power is not adjusted. When Z1≤△Z<Z2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the solar power generation unit supplies power. The adjusted weight coefficient is Qi*a1. When Z2≤△Z<Z3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a2. When Z3≤△Z<Z4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a3. When Z4≤△Z, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weighting coefficient Qi when the solar power generation unit supplies power. The adjusted weighting coefficient is Qi*a4.

5. The polar multi-source zero-carbon self-holding power supply device according to claim 4, characterized in that, The control unit is also used to preset a first preset temperature difference T1, a second preset temperature difference T2, a third preset temperature difference T3 and a fourth preset temperature difference T4, wherein T1 < T2 < T3 < T4; The control unit is also used to acquire the real-time internal temperature ΔTa1 inside the shell and the real-time external temperature ΔTa2 outside the shell in the current environment, and adjust the weighting coefficient Qi when the thermoelectric generator supplies power according to the relationship between the temperature difference between ΔTa1 and ΔTa2 and each preset temperature difference: When △Ta1-△Ta2<T1, the weighting coefficient Qi when the thermoelectric power generation unit supplies power is not adjusted. When T1≤△Ta1-△Ta2<T2, the first preset wind speed adjustment coefficient a1 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a1. When T2≤△Ta1-△Ta2<T3, the second preset wind speed adjustment coefficient a2 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a2. When T3≤△Ta1-△Ta2<T4, the third preset wind speed adjustment coefficient a3 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a3. When △Ta1-△Ta2≤△T, the fourth preset wind speed adjustment coefficient a4 is selected to adjust the weight coefficient Qi when the thermoelectric power generation unit supplies power. The adjusted weight coefficient is Qi*a4. After adjusting the weight coefficients of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit respectively by selecting the i-th preset wind speed adjustment coefficient ai, the adjusted priority list C [△Wa-Qi*ai: △Wb-Qi*ai: △Wc-Qi*ai] is obtained. According to the sorting result of the adjusted priority list C, the unit in the first position is selected to supply power to the monitoring unit.

6. The polar multi-source zero-carbon self-holding power supply device according to claim 5, characterized in that, The control unit is further configured to, when selecting the thermoelectric generator unit, wind power generation unit, or solar power generation unit to supply power to the monitoring unit, acquire the second real-time power generation ΔW2 of the thermoelectric generator unit, wind power generation unit, or solar power generation unit at preset time intervals, and determine whether to switch to the unit supplying power to the monitoring unit based on the difference between the second real-time power generation ΔW2 and ΔWn. When △W2-△Wn≥0, the unit powered by the monitoring unit will not be switched. When △W2-△Wn<0, the unit that supplies power to the monitoring unit will be switched to the unit ranked second in the priority list C.

7. The polar multi-source zero-carbon self-holding power supply device according to claim 6, characterized in that, The control unit is also used to acquire the second real-time power generation ΔW2 of the thermoelectric power generation unit, wind power generation unit, or solar power generation unit at preset time intervals, including: The first preset power generation difference Y1, the second preset power generation difference Y2, the third preset power generation difference Y3 and the fourth preset power generation difference Y4 are preset, and Y1 < Y2 < Y3 < Y4; the first preset duration S1, the second preset duration S2, the third preset duration S3 and the fourth preset duration S4 are preset, and S1 < S2 < S3 < S4. The control unit is also used to obtain the historical average power generation W0 of the thermoelectric power generation unit, wind power generation unit, or solar power generation unit, and determine the interval for obtaining ΔWn and ΔW2 based on the relationship between the difference between W0 and ΔWn and the preset power generation differences: When Y1 < △Wn - W0 ≤ Y2, the first preset duration S1 is selected as the interval duration for obtaining △Wn and △W2; When Y2 < △Wn - W0 ≤ Y3, the second preset duration S2 is selected as the interval duration for obtaining △Wn and △W2; When Y3 < △Wn - W0 ≤ Y4, the third preset duration S3 is selected as the interval duration for obtaining △Wn and △W2; When Y4 < △Wn - W0, the fourth preset duration S4 is selected as the interval duration for obtaining △Wn and △W2.

8. A control method for a polar multi-source zero-carbon self-holding power supply device, characterized in that, include: The system acquires the real-time power consumption △W0 of the monitoring unit, the real-time thermoelectric power generation △Wa of the thermoelectric power generation unit, the real-time wind power generation △Wb of the wind power generation unit, and the real-time solar power generation △Wc of the solar power generation unit. The power supply method of the monitoring unit is determined based on △W0, △Wa, △Wb, and △Wc: When ΔWa>ΔW0, the thermoelectric generator unit supplies power to the monitoring unit. When △Wb>△W0, the wind power generation unit supplies power to the monitoring unit; When ΔWc > ΔW0, the solar power generation unit supplies power to the monitoring unit; wherein, When △Wa, △Wb and △Wc are all greater than △W0, or two of them are greater than △W0, the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit is determined. According to the ranking result of the determined power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, the monitoring unit with the highest priority is selected to supply power. include: The first preset priority A1, the second preset priority A2, the third preset priority A3 and the fourth preset priority A4 are preset, A1>A2>A3>A4; the first preset power generation W1, the second preset power generation W2, the third preset power generation W3 and the fourth preset power generation W4 are preset, W1>W2>W3>W4>△W0; The power supply priorities of the thermoelectric power generation unit, wind power generation unit, and solar power generation unit are determined based on the relationship between ΔWa, ΔWb, and ΔWc and each preset power generation. When △Wa≥W1 or △Wb≥W1 or △Wc≥W1, the first preset priority A1 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit. When W1>△Wa≥W2 or W1>△Wb≥W2 or W1>△Wc≥W2, the second preset priority A2 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit. When W2>△Wa≥W3 or W2>△Wb≥W3 or W2>△Wc≥W3, the third preset priority A3 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit. When W3 > △Wa ≥ W4 or W3 > △Wb ≥ W4 or W3 > △Wc ≥ W4, the fourth preset priority A4 is selected as the power supply priority of the thermoelectric power generation unit, wind power generation unit or solar power generation unit. After selecting the i-th preset priority Ai as the power supply priority of the thermoelectric power generation unit, wind power generation unit and solar power generation unit, i=1, 2, 3, 4, the priorities are sorted from high to low to obtain the priority list B[△Wa-Ai: △Wb-Ai: △Wc-Ai]. According to the priority list B, it is determined whether the thermoelectric power generation unit, wind power generation unit or solar power generation unit supplies power to the monitoring unit. The unit ranked first in the priority list B is selected to supply power to the monitoring unit.

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