CN114285156A - Refrigerated container and hybrid power supply system thereof - Google Patents
Refrigerated container and hybrid power supply system thereof Download PDFInfo
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- CN114285156A CN114285156A CN202111408167.8A CN202111408167A CN114285156A CN 114285156 A CN114285156 A CN 114285156A CN 202111408167 A CN202111408167 A CN 202111408167A CN 114285156 A CN114285156 A CN 114285156A
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- 238000010248 power generation Methods 0.000 claims abstract description 113
- 239000000295 fuel oil Substances 0.000 claims abstract description 69
- 238000000034 method Methods 0.000 claims description 15
- 238000005057 refrigeration Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 13
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 238000012544 monitoring process Methods 0.000 claims description 10
- 238000012806 monitoring device Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 239000000446 fuel Substances 0.000 description 27
- 238000010586 diagram Methods 0.000 description 13
- 230000006870 function Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
The embodiment of the invention provides a refrigerated container and a hybrid power supply system thereof, wherein a control module can control a fuel oil power generation power supply group and a high-voltage storage battery power supply group to alternately and circularly supply power to a refrigerating unit, so that the fuel oil power generation power supply group and the high-voltage storage battery power supply group can pause to work when the high-voltage storage battery power supply group works, the consumption of fuel oil is reduced, and the fuel oil power generation power supply group is controlled to charge the high-voltage storage battery power supply group only when the electric quantity of the high-voltage storage battery power supply group is insufficient, so that the continuous power supply capability of the high-voltage storage battery power supply group is ensured, the electric energy generated by the fuel oil power generation power supply group is fully utilized, the working efficiency of the fuel oil power generation power supply group is improved, the power supply efficiency of the hybrid power supply system is further improved, and the power supply time is prolonged.
Description
Technical Field
The invention relates to the technical field of power supply, in particular to a refrigerated container and a hybrid power supply system thereof.
Background
With the increasing living standard of people, the demand and the quality of people for perishable food are higher and higher. According to incomplete statistics, about 60 ten thousand TEU (Transmission extension unit) refrigerated containers are in use all over the world, and with the development of individual economy, the transportation mode of perishable goods gradually develops towards the direction of small batch, multiple varieties and timeliness. Because perishable food has a large transportation span and a long transportation distance, and most perishable food needs to be imported, it needs to be transported in a way that a refrigerated container is used as a carrier.
At present, the power supply mode of the railway cold chain transportation equipment is self-powered and centralized power supply, the refrigeration energy is mostly fuel oil, and the fuel oil is combusted to drive the power generation and supply set to generate power so as to meet the electric energy required by the work of the refrigerating unit and ensure the quality of the transported cold chain goods. However, the fuel oil power supply system of the self-powered cold chain equipment is mostly integrated in the refrigerating unit, and the oil tank and the power generation and supply set are separately installed below the refrigerating unit; while centralized power systems are typically integrated within a 40 foot standard container or single train.
Due to the development level of the current battery technology, the power supply system has the problems of self-weight, insufficient electric energy storage, insufficient endurance time and the like, and because the charging facilities along the railway are insufficient (basically none), the energy supply is difficult, and the fuel oil power generation power supply group is required for charging. However, the conventional fuel oil power generation power supply set is a traditional excitation power generation power supply set, and has the disadvantages of low energy conversion efficiency, high fuel oil consumption, large air pollution and no contribution to energy conservation and emission reduction of railways.
Disclosure of Invention
The embodiment of the invention provides a refrigerated container and a hybrid power supply system thereof, and solves the technical problems of low power supply efficiency and short power supply time when the refrigerated container is powered in the related technology.
In a first aspect, the present invention provides a hybrid power supply system for a refrigerated container, according to an embodiment of the present invention, including: a housing fixed to an outer side of the refrigerated container; a control module, a fuel oil power generation power supply set and a high-voltage storage battery power supply set which are mutually connected in a high-voltage manner are arranged in the shell; the control module is used for controlling the fuel oil power generation power supply set and the high-voltage storage battery power supply set so that the fuel oil power generation power supply set and the high-voltage storage battery power supply set alternately and circularly supply power for the refrigerating unit of the refrigerated container and controlling the fuel oil power generation power supply set to charge the high-voltage storage battery power supply set.
Preferably, the control module is specifically configured to: monitoring the states of the fuel oil power generation power supply set and the high-voltage storage battery power supply set in the process that a hybrid power supply system supplies power to the refrigerating unit; if the hybrid power supply system is monitored to meet a first switching condition, controlling the high-voltage storage battery power supply set to refrigerate the refrigerating unit; and if the hybrid power supply system is monitored to meet a second switching condition, controlling the fuel oil power generation power supply set to provide electric energy for the refrigerating unit.
Preferably, the control module is specifically configured to: when the electric quantity of the high-voltage storage battery power supply group is monitored to be larger than or equal to a high electric quantity threshold value; or when the power supply set of the high-voltage storage battery is monitored to have a fault, the hybrid power supply system is judged to meet the first switching condition; and when the electric quantity of the high-voltage storage battery power supply set is monitored to be smaller than or equal to a low electric quantity threshold value, or when the fuel oil power generation power supply set breaks down, judging that the hybrid power supply system meets the second switching condition.
Preferably, the control module is specifically further configured to: monitoring the state of the high-voltage storage battery power supply unit when the hybrid power supply system does not supply power to the refrigerating unit; and if the situation that the high-voltage storage battery power supply set meets the preset charging condition is monitored, controlling the fuel oil power generation power supply set to charge the high-voltage storage battery power supply set.
Preferably, the control module is specifically further configured to: when the electric quantity of the high-voltage storage battery power supply set is monitored to be smaller than or equal to a preset charging threshold value, or the time length of stopping power supply of the high-voltage storage battery power supply set exceeds the preset standby time length, it is judged that the high-voltage storage battery power supply set meets a preset charging condition.
Preferably, the system further comprises: the central monitoring device is in communication connection with the control module and is used for acquiring the electric quantity of the high-voltage storage battery power supply set through the control module and sending a starting instruction of the fuel oil power generation power supply set to the control module when the electric quantity of the high-voltage storage battery power supply set meets the preset charging condition; the control module is further used for controlling the fuel oil power generation power supply set to provide electric energy for the refrigerating unit when receiving a starting instruction of the fuel oil power generation power supply set; the fuel oil power generation power supply set and the high-voltage storage battery power supply set are connected with the refrigerating unit through the converters and used for converting the electric energy provided by the fuel oil power generation power supply set and the high-voltage storage battery power supply set so as to provide the converted electric energy for the refrigerating unit.
Preferably, the system further comprises: the low-voltage storage battery power supply set is used for providing electric energy for the control module, the generator controller in the fuel oil power generation power supply set and the storage battery controller in the storage battery power supply set; and the auxiliary power generation device is connected with the low-voltage storage battery power supply set and is used for charging the low-voltage storage battery power supply set.
Preferably, the auxiliary power generation apparatus includes: the solar power generation panel is positioned at the top of the shell and used for absorbing solar energy and generating electric energy; the heat absorption power generation plate is positioned outside the shell and used for absorbing heat generated by the fuel oil power generation power supply set and generating electric energy; the solar power generation panel and the heat absorption power generation panel are also used for storing the generated electric energy into the low-voltage storage battery power supply set.
Preferably, the high voltage battery power supply set further comprises: and the direct-current charging interface is used for charging the high-voltage storage battery power supply set when being connected with an external direct-current power supply.
In a second aspect, the invention provides a refrigerated container, including a refrigeration unit and the hybrid power supply system according to any one of the first aspect; wherein the refrigeration unit is disposed within the refrigerated container; the hybrid power supply system is hung on the outer side of the refrigerated container and used for supplying power to the refrigerating unit.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
the hybrid power supply system provided by the embodiment of the invention can control the fuel power generation power supply group and the high-voltage storage battery power supply group through the control module to enable the fuel power generation power supply group and the high-voltage storage battery power supply group to alternately and circularly supply power to the refrigerating unit of the refrigerated container, so that the fuel power generation power supply group can be suspended to work when the high-voltage storage battery power supply group works, the consumption of fuel oil is reduced, and the fuel power generation power supply group is controlled to charge the high-voltage storage battery power supply group only when the electric quantity of the high-voltage storage battery power supply group is insufficient, so that the continuous power supply capability of the high-voltage storage battery power supply group is ensured, the electric energy generated by the fuel power generation power supply group is fully utilized, the working efficiency of the fuel power generation power supply group is improved, the power supply efficiency of the hybrid power supply system is further improved, and the power supply time is prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a schematic diagram of a hybrid power supply system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal connections of the hybrid power supply system in an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a hybrid power supply system according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a hybrid power supply system in another embodiment according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of the hybrid power supply system of FIG. 4 taken in cross-section along direction A-A;
FIG. 6 is an enlarged view of a portion of FIG. 5;
fig. 7 is a schematic view of a refrigerated container according to an embodiment of the invention.
Detailed Description
The embodiment of the invention provides a refrigerated container and a hybrid power supply system thereof, and solves the technical problems of low power supply efficiency and short power supply time when the refrigerated container is powered in the related technology.
In order to solve the technical problems, the embodiment of the invention provides the following general ideas:
the fuel oil power generation power supply group and the high-voltage storage battery power supply group are controlled by the control module to alternately and circularly supply power to the refrigerating unit of the refrigerated container, so that the fuel oil power generation power supply group and the high-voltage storage battery power supply group can suspend working when the high-voltage storage battery power supply group works, fuel oil consumption is reduced, the high-voltage storage battery power supply group is charged by controlling the fuel oil power generation power supply group only when the high-voltage storage battery power supply group is insufficient in electric quantity, on one hand, the continuous power supply capacity of the high-voltage storage battery power supply group is ensured, on the other hand, the electric energy generated by the fuel oil power generation power supply group is fully utilized, the working efficiency of the fuel oil power generation power supply group is improved, the power supply efficiency of a hybrid power supply system is improved, and the power supply time is prolonged.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
First, it is stated that the term "and/or" appearing herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
In a first aspect, the invention provides a hybrid power supply system for a refrigerated container, which can be used for supplying electric power to an unpowered marine refrigerated container during transportation, and can also be used for meeting the power supply requirement of a self-powered refrigerated container for power backup to increase the endurance time of the self-powered refrigerated container, thereby ensuring the power demand of a refrigerating unit for ultra-long endurance time, and in addition, can also be used for supplying electric power to the unpowered marine container during multi-mode transportation from sea to land or from land to railway.
Referring to fig. 1 and 2, the hybrid power supply system includes: the power supply system comprises a shell 100, a control module 200, a fuel power generation power supply set 300 and a high-voltage storage battery power supply set 400.
In order to fix the housing 100 to the outside of the refrigerated container, a hanging structure 101 may be provided on the housing 100, and the housing 100 may be fixed to the outside of the refrigerated container by mounting the hanging structure 101 on a corner fitting of the refrigerated container, which may be applied to railway transportation.
The control module 200, the fuel power generation power supply set 300 and the high-voltage battery power supply set 400 are all arranged in the casing 100, and for better understanding of the connection relationship inside the hybrid power supply system, the control module 200, the fuel power generation power supply set 300 and the high-voltage battery power supply set 400 are connected with each other through high voltage as shown in fig. 2.
Specifically, the control module 200 is configured to control the fuel oil power generation supply set 300 and the high-voltage battery power supply set 400, so that the fuel oil power generation supply set 300 and the high-voltage battery power supply set 400 alternately and circularly supply power to the refrigeration unit, and control the fuel oil power generation supply set 300 to charge the high-voltage battery power supply set 400.
In a specific implementation process, the control module 200 is specifically configured to: monitoring the states of the fuel oil power generation power supply set 300 and the high-voltage storage battery power supply set 400 in the process of supplying power to the refrigerating unit by the hybrid power supply system; if the hybrid power supply system is monitored to meet the first switching condition, controlling the high-voltage storage battery power supply unit 400 to refrigerate the refrigerating unit; and if the hybrid power supply system meets the second switching condition, controlling the fuel oil power generation power supply set 300 to provide electric energy for the refrigerating unit.
When monitoring that the electric quantity of the high-voltage battery power supply set 400 is greater than or equal to a high electric quantity threshold value or when monitoring that the high-voltage battery power supply set 400 has a fault, the control module 200 determines that the hybrid power supply system meets a first switching condition; when the control module 200 monitors that the electric quantity of the high-voltage storage battery power supply set 400 is smaller than or equal to the low electric quantity threshold value or when the fuel oil power generation power supply set 300 breaks down, it is determined that the hybrid power supply system meets the second switching condition.
For the low battery threshold, in the implementation process, the setting may be performed according to the capacity of the high-voltage battery power supply set 400. Specifically, the larger the capacity of the high-voltage battery power supply group 400 is, the smaller the low charge threshold value may be set, and conversely, the lower charge threshold value may be appropriately increased. For example, the low battery threshold may be set to any value between 10% and 20%; of course, the low charge threshold may also be set based on discharge protection requirements for the high voltage battery power supply pack 400.
For the high-power threshold, in the implementation process, the high-power threshold may be set according to the capacity of the high-voltage battery power supply unit 400. Specifically, the smaller the capacity of the high-voltage battery power supply group 400 is, the larger the high-battery threshold value may be set, and conversely the lower the low-battery threshold value may be appropriately reduced. For example, the high power threshold may be set to any value between 80% and 100%; of course, the high charge threshold may also be set based on the charge protection requirements for the high voltage battery power supply pack 400.
In order to enable the hybrid power supply system to preferentially supply power by the high-voltage storage battery power supply unit 400 when starting, the control module 200 monitors the state of the high-voltage storage battery power supply unit 400 when detecting that the hybrid power supply system does not supply power to the refrigerating unit; if the high-voltage storage battery power supply set 400 meets the preset charging condition, the fuel oil power generation power supply set 300 is controlled to charge the high-voltage storage battery power supply set 400, so that the high-voltage storage battery power supply set 400 is ensured to have enough electric energy.
Specifically, when it is monitored that the electric quantity of the high-voltage battery power supply group 400 is less than or equal to the preset charging threshold, or the time length for the high-voltage battery power supply group 400 to stop supplying power exceeds the preset standby time length, the control module 200 determines that the high-voltage battery power supply group 400 meets the preset charging condition.
For the preset charging threshold, in a specific implementation process, the preset charging threshold may be set according to the power shortage protection requirement for the high-voltage battery power supply group 400, for example, the preset charging threshold may be set to any value between 10% and 20%.
For the preset standby time, in the specific implementation process, the preset standby time may be set according to the actual usage scenario of the hybrid power supply system, specifically, if the usage frequency of the hybrid power supply system is low, the preset standby time may be set to be longer, otherwise, the preset standby time may be set to be shorter. For example, the preset standby time period may be set to any value between 2 days and 7 days.
To facilitate monitoring of the hybrid power supply system, please refer to fig. 2 and 3, the hybrid power supply system further includes a central monitoring device 500. The central monitoring device 500 is in communication connection with the control module 200, and is configured to acquire the electric quantity of the high-voltage battery power supply unit 400 through the control module 200, and send a start instruction of the fuel oil power generation power supply unit 300 to the control module 200 when the electric quantity of the high-voltage battery power supply unit 400 meets a preset charging condition. Correspondingly, when receiving a starting instruction of the fuel power generation power supply set 300, the control module 200 controls the fuel power generation power supply set 300 to supply electric energy to the refrigeration unit.
In order to provide the electric power to meet the operation requirement of the refrigeration unit, please continue to refer to fig. 1 and 2, the hybrid power supply system further includes an inverter 600. The fuel oil power generation power supply set 300 and the high-voltage storage battery power supply set 400 are both connected with the refrigerating unit through the converter 600, and the converter 600 is used for converting the electric energy provided by the fuel oil power generation power supply set 300 and the high-voltage storage battery power supply set 400 so as to provide the converted electric energy to the refrigerating unit.
In order to reduce the discharge time of the high-voltage battery power supply set 400 and further increase the power supply time of the hybrid power supply system, please refer to fig. 1, fig. 2 and fig. 5, the hybrid power supply system further includes a low-voltage battery power supply set 700 and an auxiliary power generation device 800. Wherein the low-voltage battery power supply set 700 is capable of providing power to the control module 200, a generator controller (not shown) in the fuel-powered power supply set 300, and a battery controller (not shown) in the high-voltage battery power supply set 400; the auxiliary power generating apparatus 800 is connected to the low-voltage secondary battery power supply set 700, and is used to charge the low-voltage secondary battery power supply set 700.
In an implementation process, referring to fig. 4 to 6, the auxiliary power generation device 800 may include: a solar power generation panel 801 and a heat absorption power generation panel 802. Wherein, the solar power generation panel 801 is positioned at the top of the shell 100 and is used for absorbing solar energy and generating electric energy; the heat absorption-generation panel 802 is located outside the casing 100, and is configured to absorb heat generated by the fuel electricity-generating power supply group 300 and generate electric energy.
It can be understood that the solar power generation panel 801 and the heat absorption power generation panel 802 can store generated electric energy into the low-voltage storage battery power supply group 700, so that power can be supplied to low-power-consumption devices in the hybrid power supply system through the low-voltage storage battery power supply group 700, power supply of the high-voltage storage battery power supply group 400 is not needed, discharging time of the high-voltage storage battery power supply group 400 is effectively reduced, electric quantity of the high-voltage storage battery power supply group 400 is saved, and power supply time of the hybrid power supply system is prolonged.
In order to reduce the charging time of the fuel power generation power supply set 300 to the high-voltage battery power supply set 400, and reduce the fuel consumption, please refer to fig. 2, the hybrid power supply system further includes a dc charging interface 900. The dc charging interface 900 is used for charging the high-voltage battery power supply set 400 when being connected with an external dc power supply, for example, when the hybrid power supply system is applied to a rail transportation process, if a parking platform is provided with a charging pile, the dc charging interface 900 can be connected with the charging pile to charge the high-voltage battery power supply set 400, so that the fuel consumption of the fuel power generation power supply set 300 is reduced, and therefore, the power supply duration of the hybrid power supply system is further improved.
It should be noted that, in order to reduce the dependence on electricity during the operation of the fuel-powered power supply set 300 and further save the electric quantity of the high-voltage battery power supply set 400, the generator in the fuel-powered power supply set 300 may be a diesel generator. Compared with a gasoline generator, the diesel generator has no spark plug and does not need ignition in the working process, so that the consumption of electric energy can be reduced, and the power supply duration of the hybrid power supply system is prolonged. In addition, diesel is less expensive and more difficult to ignite than gasoline, and is therefore safer to store.
In order to meet the requirement of the high-voltage battery power supply set 400 for operating temperature under the condition of extremely low temperature and prevent the fuel from solidifying, the heat generated by the operation of the fuel power generation power supply set 300 can be used for heating the battery in the high-voltage battery power supply set 400, and the auxiliary power generation device 800 can be used for generating power by using heat energy to supplement the electric energy to the low-voltage battery power supply set 700.
Further, the battery in the high voltage battery power supply set 400 may be a lithium battery. The central monitoring apparatus 500 may be an electronic device with communication capability, such as a smart phone or a portable computer. The control module 200 may be an electronic Controller with monitoring and control functions, such as a PLC (Programmable Logic Controller) or a microcomputer.
In order to better understand the above technical solutions, the following detailed descriptions of the above technical solutions are provided. In general, the high-voltage Battery power supply unit 400 may provide power for the refrigeration unit, and if the refrigeration unit is not operating and the electric quantity of the high-voltage Battery power supply unit 400 is insufficient, the control module 200 may preferentially use an external power supply such as a ground charging pile to charge the high-voltage Battery power supply unit 400 through the dc charging interface 900 when detecting a BMS (Battery Management System) deficiency signal; when the ground power supply cannot be used for charging and the high-voltage battery power supply set 400 meets the preset charging condition, the fuel oil power generation power supply set 300 can be started to work so as to directly charge the high-voltage battery power supply set 400.
When the hybrid power supply system is in a normal use process, the control module 200 monitors the BMS shortage signal, and controls the control module 200 through the central monitoring device 500, so that the fuel oil power generation power supply set 300 is started, and at this time, the refrigeration unit is supplied with power by the fuel oil power generation power supply set 300. Moreover, when the power supply of the refrigerating unit is met, the fuel oil power generation power supply set 300 can be controlled to charge the redundant electric energy to the high-voltage storage battery power supply set 400 through the charger, when the high-voltage storage battery power supply set 400 is fully charged, the fuel oil power generation power supply set 300 is controlled to stop working, and at the moment, the high-voltage storage battery power supply set 400 is switched to supply power to the refrigerating unit.
In addition, when detecting that the fuel oil power generation power supply set 300 has a fault, the control module 200 controls the high-voltage storage battery power supply set 400 to start so as to ensure the normal operation of the refrigerating unit; when detecting that the high-voltage storage battery power supply unit 400 has a fault, the control module 200 controls the fuel oil power generation power supply unit 300 to start so as to ensure the normal operation of the refrigerating unit and further ensure the quality of cold chain transportation goods.
Further, in configuring the hybrid power supply system, the hybrid power supply system may be closely connected with a front end frame (not shown) of the refrigerated container, where the solar power generation panel 801 and the heat absorption power generation panel 802 are disposed, through the suspension structure 101.
The solar panel 801 receives solar energy and converts the solar energy into electric energy, and the heat absorption panel 802 absorbs heat energy and converts the heat energy into electric energy, so as to meet the power consumption requirements of low-voltage electric equipment such as a generator controller and a starting motor in the fuel oil power generation set 300, a storage battery controller in the high-voltage storage battery power supply set 400, the central monitoring device 500 and the low-voltage storage battery power supply set 700. Of course, the converted electric energy may also be directly provided to the control module 200 to satisfy the power consumption requirement of the control module 200 for controlling the fuel oil power generation power supply set 300, the high-voltage battery power supply set 400, the central monitoring device 500, the converter 600, the solar power generation panel 801 and the heat absorption power generation panel 802, and satisfy the power consumption requirement of the control module 200 for receiving the operation data of the fuel oil power generation power supply set 300, the operation data of the high-voltage battery power supply set 400 and the operation data of the refrigeration unit and performing the alternate circulation power supply control.
The fuel power generation and supply set 300 is mounted on a supporting structure at the upper part of the shell 100, the high-voltage storage battery power supply set 400 is mounted on a supporting structure at the middle part of the shell 100, the solar power generation panel 801 and the heat absorption power generation panel 802 are arranged on a protection panel at the top or the front end of the shell 100, the converter 600 is arranged on a top plate (not shown) of a fuel tank of the fuel power generation and supply set 300, the fuel tank is arranged at the lowest part of the shell 100, the whole shell 100 is mounted at the upper end of a corner fitting upright post (not shown) at the front end of a refrigerated container through a suspension structure 101, and the hybrid power supply system is connected with the refrigerated container through a power cable.
In a second aspect, based on the same inventive concept, an embodiment of the present invention provides a refrigerated container, please refer to fig. 7, which includes a refrigeration unit 1000 and any one of the hybrid power supply systems of the first aspect; wherein the refrigeration unit 1000 is disposed within a refrigerated container; the hybrid power supply system is hung outside the refrigerated container and used for supplying power to the refrigerating unit 1000.
The technical scheme in the embodiment of the invention at least has the following technical effects or advantages:
the fuel power generation power supply group 300 and the high-voltage storage battery power supply group 400 are controlled by the control module 200, so that the fuel power generation power supply group 300 and the high-voltage storage battery power supply group 400 alternately and circularly supply power to a refrigerating unit of a refrigerated container, when the high-voltage storage battery power supply group 400 works, the fuel power generation power supply group 300 is temporarily stopped to work, the fuel consumption is reduced, only when the power of the high-voltage storage battery power supply group 400 is insufficient, the fuel power generation power supply group 300 is controlled to charge the high-voltage storage battery power supply group 400, on one hand, the continuous power supply capacity of the high-voltage storage battery power supply group 400 is ensured, on the other hand, the electric energy generated by the fuel power generation power supply group 300 is fully utilized, the working efficiency of the fuel power generation power supply group 300 is improved, the power supply efficiency of a hybrid power supply system is further improved, and the power supply time is prolonged.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the invention may take the form of a computer product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer instructions. These computer instructions may 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, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A hybrid power supply system for a refrigerated container, comprising:
a housing fixed to an outer side of the refrigerated container;
a control module, a fuel oil power generation power supply set and a high-voltage storage battery power supply set which are mutually connected in a high-voltage manner are arranged in the shell;
the control module is used for controlling the fuel oil power generation power supply set and the high-voltage storage battery power supply set so that the fuel oil power generation power supply set and the high-voltage storage battery power supply set alternately and circularly supply power for the refrigerating unit of the refrigerated container and controlling the fuel oil power generation power supply set to charge the high-voltage storage battery power supply set.
2. The system of claim 1, wherein the control module is specifically configured to:
monitoring the states of the fuel oil power generation power supply set and the high-voltage storage battery power supply set in the process that a hybrid power supply system supplies power to the refrigerating unit; if the hybrid power supply system is monitored to meet a first switching condition, controlling the high-voltage storage battery power supply set to refrigerate the refrigerating unit; and if the hybrid power supply system is monitored to meet a second switching condition, controlling the fuel oil power generation power supply set to provide electric energy for the refrigerating unit.
3. The system of claim 2, wherein the control module is specifically configured to:
when the electric quantity of the high-voltage storage battery power supply set is monitored to be larger than or equal to a high electric quantity threshold value, or when the high-voltage storage battery power supply set is monitored to be in fault, judging that the hybrid power supply system meets the first switching condition;
and when the electric quantity of the high-voltage storage battery power supply set is monitored to be smaller than or equal to a low electric quantity threshold value, or when the fuel oil power generation power supply set breaks down, judging that the hybrid power supply system meets the second switching condition.
4. The system of claim 1, wherein the control module is further specifically configured to:
monitoring the state of the high-voltage storage battery power supply unit when the hybrid power supply system does not supply power to the refrigerating unit; and if the situation that the high-voltage storage battery power supply set meets the preset charging condition is monitored, controlling the fuel oil power generation power supply set to charge the high-voltage storage battery power supply set.
5. The system of claim 4, wherein the control module is further specifically configured to:
when the electric quantity of the high-voltage storage battery power supply set is monitored to be smaller than or equal to a preset charging threshold value, or the time length of stopping power supply of the high-voltage storage battery power supply set exceeds the preset standby time length, it is judged that the high-voltage storage battery power supply set meets a preset charging condition.
6. The system of claim 4 or 5, further comprising:
the central monitoring device is in communication connection with the control module and is used for acquiring the electric quantity of the high-voltage storage battery power supply set through the control module and sending a starting instruction of the fuel oil power generation power supply set to the control module when the electric quantity of the high-voltage storage battery power supply set meets the preset charging condition;
the control module is further used for controlling the fuel oil power generation power supply set to provide electric energy for the refrigerating unit when receiving a starting instruction of the fuel oil power generation power supply set;
the fuel oil power generation power supply set and the high-voltage storage battery power supply set are connected with the refrigerating unit through the converters and used for converting the electric energy provided by the fuel oil power generation power supply set and the high-voltage storage battery power supply set so as to provide the converted electric energy for the refrigerating unit.
7. The system of claim 1, further comprising:
the low-voltage storage battery power supply set is used for providing electric energy for the control module, the generator controller in the fuel oil power generation power supply set and the storage battery controller in the storage battery power supply set;
and the auxiliary power generation device is connected with the low-voltage storage battery power supply set and is used for charging the low-voltage storage battery power supply set.
8. The system of claim 7, wherein the auxiliary power generation device comprises:
the solar power generation panel is positioned at the top of the shell and used for absorbing solar energy and generating electric energy;
the heat absorption power generation plate is positioned outside the shell and used for absorbing heat generated by the fuel oil power generation power supply set and generating electric energy;
the solar power generation panel and the heat absorption power generation panel are also used for storing the generated electric energy into the low-voltage storage battery power supply set.
9. The system of claim 1, wherein the high voltage battery power supply set further comprises:
and the direct-current charging interface is used for charging the high-voltage storage battery power supply set when being connected with an external direct-current power supply.
10. A refrigerated container comprising a refrigeration unit and a hybrid power supply system as claimed in any one of claims 1 to 9; wherein the refrigeration unit is disposed within the refrigerated container; the hybrid power supply system is hung on the outer side of the refrigerated container and used for supplying power to the refrigerating unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111408167.8A CN114285156A (en) | 2021-11-24 | 2021-11-24 | Refrigerated container and hybrid power supply system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111408167.8A CN114285156A (en) | 2021-11-24 | 2021-11-24 | Refrigerated container and hybrid power supply system thereof |
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| CN114285156A true CN114285156A (en) | 2022-04-05 |
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| CN202111408167.8A Pending CN114285156A (en) | 2021-11-24 | 2021-11-24 | Refrigerated container and hybrid power supply system thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023093473A1 (en) * | 2021-11-24 | 2023-06-01 | 中车长江运输设备集团有限公司 | Hybrid power supply system and refrigeration transportation device |
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| CN111703447A (en) * | 2020-06-10 | 2020-09-25 | 中车长江车辆有限公司 | Railway refrigerator car power supply system and railway refrigerator car |
| CN212828344U (en) * | 2020-06-10 | 2021-03-30 | 中车长江车辆有限公司 | Railway refrigerator car |
| CN113675518A (en) * | 2021-08-31 | 2021-11-19 | 上海寰宇物流科技有限公司 | Novel new forms of energy reefer container |
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- 2021-11-24 CN CN202111408167.8A patent/CN114285156A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202156284U (en) * | 2011-07-01 | 2012-03-07 | 李雨晴 | Intelligent power generating unit of arm hanging type refrigerated container |
| CN111703447A (en) * | 2020-06-10 | 2020-09-25 | 中车长江车辆有限公司 | Railway refrigerator car power supply system and railway refrigerator car |
| CN212828344U (en) * | 2020-06-10 | 2021-03-30 | 中车长江车辆有限公司 | Railway refrigerator car |
| CN113675518A (en) * | 2021-08-31 | 2021-11-19 | 上海寰宇物流科技有限公司 | Novel new forms of energy reefer container |
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| WO2023093473A1 (en) * | 2021-11-24 | 2023-06-01 | 中车长江运输设备集团有限公司 | Hybrid power supply system and refrigeration transportation device |
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