Airport vehicle-mounted power supply system based on auxiliary power generation of extended-range generator

Abstract

The utility model provides an airport vehicle-mounted power supply system based on auxiliary power generation of an extended-range generator, and belongs to the technical field of airport vehicle-mounted power supply. The technical problem to be solved is to provide an improvement of an airport vehicle-mounted power supply system hardware structure based on range-extended generator auxiliary power generation. According to the technical scheme for solving the technical problem, an extended-range generator set, an energy storage battery pack, a power supply control system, a controller and a distribution box are arranged on a carrying chassis of the power supply vehicle; the range-extended generator set comprises an engine and a generator, an output shaft of the engine and a driving shaft of the generator are coaxially arranged, and a power output end of the generator is connected with a charging end of the energy storage battery pack through a power transmission cable; the output end of the energy storage battery pack is connected with the power supply control system, the power supply control system is internally provided with power supply output ports of various specifications, and the power supply output ports of various specifications are connected to the distribution box through power transmission cables; the system is applied to airport vehicle-mounted power supply.

Description

Technical Field

[0001] The utility model provides an airport vehicle-mounted power supply system based on range-extended generator auxiliary power generation, belonging to the technical field of airport vehicle-mounted power supply. Background Art

[0002] Aircraft at airports are typically equipped with dedicated power supplies, provided by an onboard power supply system operating at the airport. This ground power supply system provides dedicated AC and DC power supplies. The power supply types and specifications used include DC 28V power supply, DC 28V / 57V or 28V / 56V power supply, DC 0-70V power supply, DC 270V power supply, DC 540V power supply, three-phase AC 115 / 200V 400Hz power supply, three-phase AC 36V 400Hz power supply, and other expansion power ports. Because the power supply types (secondary batteries or rechargeable batteries) and power supply requirements of various aircraft models at airports vary, the ground power supply system is required to output power types that include one or more combinations of the above power sources.

[0003] Currently, the power sources used in ground power supply systems mainly include grid input, energy storage battery packs, and fuel generator sets. The former two are more common in towed vehicle power systems, while the latter is more common in bicycle power systems. Each of these vehicle power systems has its own advantages and disadvantages:

[0004] The noise and air pollution of vehicle-mounted power systems powered by fuel generators are high, causing serious damage to human health and the surrounding environment. However, this type of vehicle-mounted power system has good mobility and can meet the needs of working in various environmental conditions.

[0005] Onboard power systems powered by energy storage batteries can support green airport construction and effectively address the noise and environmental pollution caused by fuel-powered onboard power systems. However, the timeliness of recharging the energy storage battery packs is far less than that of fuel-powered vehicles.

[0006] Grid-powered on-board power systems can also effectively address the noise and environmental pollution caused by fuel-powered vehicle systems. However, the power supply location is affected by the location of the distribution network and the length of the cable. In addition, harmonics in the system can easily distort the voltage and current of the grid, affecting the stable and safe operation of the distribution network. Utility Model Content

[0007] In order to overcome the deficiencies in the prior art, the utility model aims to solve the technical problem of providing an improvement in the hardware structure of an airport vehicle-mounted power supply system based on auxiliary power generation of an extended-range generator.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: an airport vehicle-mounted power supply system based on extended-range generator auxiliary power generation, comprising a power supply vehicle, on which a range-extended generator set, an energy storage battery pack, a power control system, a controller and a distribution box are arranged on the carrier chassis of the power supply vehicle;

[0009] The range-extended generator set includes an engine and a generator, wherein the output shaft of the engine is coaxially arranged with the drive shaft of the generator, and the power output end of the generator is connected to the charging end of the energy storage battery pack through a transmission cable;

[0010] The energy storage battery pack includes multiple battery cell groups and is controlled and monitored by a battery management system;

[0011] The output end of the energy storage battery pack is connected to the power control system, and the power control system is internally provided with power output ports of multiple specifications, and the power output ports of various specifications are connected to the distribution box through transmission cables;

[0012] The distribution box is provided with a detection control circuit inside, and the output end of the detection control circuit is electrically connected to the corresponding power load equipment and the controller through an external power transmission cable to provide output power and output control signals;

[0013] The control ends of the range-extended generator set, energy storage battery pack, power control system, and distribution box are all connected to the controller through wires.

[0014] The detection control circuit of the distribution box is provided with a contactor, a relay, a sensor, a shunt and a fuse.

[0015] The controller is provided with switches, relays, meters, sensors and a display screen.

[0016] The range-extended generator set specifically converts fuel into energy so that its output shaft rotates.

[0017] The energy storage battery pack is specifically a rechargeable battery of lithium iron phosphate battery or lithium titanate battery, and the battery specifically outputs a voltage of DC 28V, DC 540V, or DC 600V.

[0018] The multiple power output ports provided in the power control system specifically include:

[0019] DC 28V power port, DC 28 / 57V power port, DC 28 / 56V power port, DC 0-70V power port, DC 270V power port, DC 540V power port, AC 115 / 200V 400Hz power port, AC 220 / 380V 50Hz power port, AC 36V 400Hz power port.

[0020] The transmission cable specifically consists of a terminal block, a cable, a plug, and a sheath.

[0021] A carriage is also installed on the carrying chassis of the power supply vehicle.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: the airport vehicle-mounted power supply system provided by the present invention is composed of an extended-range generator set and an energy storage battery pack and a corresponding control system and distribution system. The system integrates the advantages of an aircraft power supply vehicle-mounted power supply system powered by a fuel generator set (extended-range generator set) and an energy storage battery pack, and can maintain low noise and low pollution operation during the power supply guarantee process while improving the equipment guarantee time and guarantee sortie number; the control modules provided in the system can achieve cable voltage drop supplementation capabilities by detecting the output voltage and current, thereby improving the power supply reliability of electrical equipment; the energy storage battery pack provided in the power supply system can be charged while in use, automatically detect the battery power when idle, and start charging and replenishing at any time, thereby increasing the guarantee time, and the provided extended-range generator set performs auxiliary power generation, which can improve the field guarantee capability and solve the problem of charging position restrictions of the energy storage battery pack. In addition, the system can collect the operating status information of each functional module in real time to achieve one-stop information management and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the installation effect of the power supply system of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the control circuit of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the power supply system of the utility model;

[0027] In the figure: 1 is the extended-range generator set, 2 is the energy storage battery pack, 3 is the power control system, 4 is the controller, and 5 is the distribution box. DETAILED DESCRIPTION

[0028] like Figures 1 to 3 As shown, the utility model provides an airport vehicle-mounted power supply system based on extended-range generator auxiliary power generation, which mainly consists of a power supply vehicle and an extended-range generator set 1, an energy storage battery pack 2, a power control system 3, a controller 4, a distribution box 5 and connecting cables and other components arranged on the power supply vehicle and the carrier chassis of the power supply vehicle.

[0029] The range-extended generator set 1 includes an engine and a generator. The output shaft of the engine is coaxially arranged with the drive shaft of the generator. The power output end of the generator is connected to the charging end of the energy storage battery pack 2 through a transmission cable.

[0030] The energy storage battery pack 2 includes multiple battery cell groups and is controlled and monitored by a battery management system;

[0031] The output end of the energy storage battery pack 2 is connected to the power control system 3, and the power control system 3 is internally provided with a plurality of power output ports of different specifications, and each power output port of different specifications is connected to the distribution box 5 through a transmission cable;

[0032] The distribution box 5 is provided with a detection control circuit inside, and the output end of the detection control circuit is electrically connected to the corresponding power load device and the controller 4 through an external power transmission cable to provide output power and output control signals;

[0033] The control ends of the range-extended generator set 1 , the energy storage battery pack 2 , the power control system 3 , and the distribution box 5 are all connected to the controller 4 through wires.

[0034] The detection and control circuit of the distribution box 5 is provided with a contactor, a relay, a sensor, a shunt and a fuse.

[0035] The controller 4 is provided with switches, relays, meters, sensors and a display screen.

[0036] The range-extended generator set 1 specifically converts fuel into energy so that its output shaft rotates.

[0037] The energy storage battery pack 2 is specifically a rechargeable battery such as a lithium iron phosphate battery or a lithium titanate battery, and the battery specifically outputs a voltage of DC 28V, DC 540V, or DC 600V.

[0038] The multiple power output ports provided in the power control system 3 specifically include:

[0039] DC 28V power port, DC 28 / 57V power port, DC 28 / 56V power port, DC 0-70V power port, DC 270V power port, DC 540V power port, AC 115 / 200V 400Hz power port, AC 220 / 380V 50Hz power port, AC 36V 400Hz power port.

[0040] The transmission cable specifically consists of a terminal block, a cable, a plug, and a sheath.

[0041] A carriage is also installed on the carrying chassis of the power supply vehicle.

[0042] The power supply vehicle chassis provided in the present invention can be a trailer chassis or a self-propelled Class II vehicle chassis. The self-propelled Class II vehicle chassis can be a fuel vehicle chassis or a new energy vehicle chassis. It is mainly used for loading and transporting extended-range generator sets, energy storage battery packs, control distribution systems and corresponding output cables.

[0043] The range-extended generator set provided by the power supply system of this utility model, referred to as "range extender", also known as "intelligent power unit", is mainly composed of an engine and a generator. It can convert fuel energy, and finally convert kinetic energy into electrical energy, and input the electrical energy into the energy storage battery pack for charging and maintenance.

[0044] The energy storage battery pack provided by this power supply system can be equipped with a 540V DC battery. The battery voltage and capacity can be customized according to requirements. It is primarily used to provide input power to the power system and power the entire vehicle system to ensure reliable operation. When a vehicle chassis is used, the energy storage battery pack can be equipped with a chassis-specific battery. By designing and improving the chassis battery power circuit, the battery can be compatible with the bodywork charging and discharging interface.

[0045] The power control system provided by the system includes DC 28V power supplies, DC 28 / 57V (or 28 / 56V) power supplies, DC 0-70V power supplies, DC 270V power supplies, DC 540V power supplies, AC 115 / 200V 400Hz power supplies, AC 220 / 380V 50Hz power supplies, AC 36V 400Hz power supplies, and other types of AC and DC power supplies. They are mainly used to provide the required power for power-consuming load devices. When in use, the corresponding output port of the power supply is connected to an external transmission cable of corresponding specifications for connection to the external load device. Each transmission cable mainly consists of components such as terminal blocks, cables, plugs, and sheaths.

[0046] The controller installed in the system is mainly composed of switches, display screens, instruments, programmable controllers and their expansion modules, relays, etc. It is mainly used for system control and operation control of the equipment. The controller has a built-in human-computer interaction system, and operating the system can realize the detection of equipment operating status and parameters.

[0047] The distribution box installed in the system mainly contains contactors, relays, sensors, shunts, fuses and other components, which are used to control the power output of the power supply system and detect the output current.

[0048] The utility model also installs a carriage body on the chassis of the power supply vehicle to ensure the safe and stable operation of the entire power supply system. The design of the carriage body comprehensively considers factors such as rain protection, dust protection, noise reduction, ventilation and heat dissipation, inspection and maintenance, easy operation, and electromagnetic compatibility.

[0049] Furthermore, the range-extended generator set provided by the present invention mainly generates electricity by burning fuel, thereby providing additional power support for the energy storage battery pack. When the energy storage battery pack is insufficient or reaches the device threshold, the range-extended generator set can replenish electricity in time according to the feedback signal, extend the protection time of the equipment, effectively improve the fuel economy and environmental protection performance of the equipment, and reduce the equipment's dependence on the capacity of the energy storage battery pack; when working, the range-extended generator set specifically converts the fuel into energy to rotate its output shaft, and the engine is driven by the fuel to convert chemical energy into mechanical energy, and then the mechanical energy is converted into electrical energy through the generator. The engine speed and the output voltage of the generator are controlled by feedback on the voltage of the energy storage battery pack, so as to maintain a stable output of electrical energy. The set range-extended generator can realize the capacity replenishment of the energy storage battery pack to ensure that the power supply vehicle can provide protection for the protected load system for a longer time.

[0050] Furthermore, the energy storage battery pack provided by the present invention mainly achieves the required rated voltage and rated capacity by connecting batteries in series and parallel. The energy storage battery pack is equipped with a BMS management system to monitor and manage parameters such as voltage, current, and temperature of the series and parallel energy storage battery pack. The energy storage battery pack realizes the conversion between electrical energy and chemical energy through chemical reactions. The charging of the energy storage battery pack converts electrical energy into chemical energy for storing electricity, and the discharging of the energy storage battery pack converts chemical energy into electrical energy to realize power supply output to the power load. The power load is the various functional modules in the power supply system. There are many types of energy storage battery packs that can be used in the present invention, including lead-acid batteries, nickel-cadmium batteries, lithium-ion batteries and other batteries. The battery voltage and capacity can be customized according to needs.

[0051] Furthermore, the power control systems provided by the present invention are all power supplies that achieve the required output through a combination of one or more forms of rectification, inversion, chopping, and voltage and frequency conversion of the energy storage battery pack. The energy storage battery pack has two working modes: one is that each power supply is input by the energy storage battery pack to finally obtain the required output voltage; the other is that the energy storage battery pack is converted into bus voltage through power conversion, and each module is input through the bus voltage and finally achieves the required output voltage through the distribution box. All of the above power supplies collect the output voltage and current to achieve cable voltage drop compensation; the distribution box set in the present invention is the connection hub between the electrical system and the load equipment, and is mainly used to output the power of the electrical system to the load equipment through the output cable through control.

[0052] When the utility model is in use, the switch provided in the control system mainly controls the output of the power supply, the display screen monitors and displays the system status through electrical connection or communication with other components, the controller and its expansion module mainly perform input and output logic control and communication control on the received digital and analog quantities, and the instrument can be used to display parameters such as voltage, current, frequency, and temperature in the system.

[0053] Regarding the specific structure of the present invention, it should be noted that the connection relationship between the various component modules adopted in the present invention is definite and feasible. Except for the special instructions in the embodiments, the specific connection relationship can bring about corresponding technical effects and solve the technical problems raised by the present invention without relying on the execution of the corresponding software program. The components, modules, models of specific components appearing in the present invention, the connection methods between each other, and the conventional usage methods and expected technical effects brought about by the above-mentioned technical features, except for the specific instructions, all belong to the disclosed contents in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by technical personnel in this field before the application date, or belong to the existing technologies such as conventional technology and common knowledge in this field, and there is no need to elaborate, so that the technical solution provided in this case is clear, complete, and feasible, and the corresponding physical products can be reproduced or obtained based on this technical means.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than 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 they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An airport vehicle-mounted power supply system based on range-extended generator auxiliary power generation, including a power supply vehicle, characterized by: The power supply vehicle is provided with a range-extending generator set (1), an energy storage battery set (2), a power supply control system (3), a controller (4) and a distribution box (5) on its carrier chassis; The range-extended generator set (1) comprises an engine and a generator, wherein the output shaft of the engine is coaxially arranged with the drive shaft of the generator, and the power output end of the generator is connected to the charging end of the energy storage battery pack (2) via a transmission cable; The energy storage battery pack (2) comprises a plurality of battery cell groups and is controlled and monitored by a battery management system; The output end of the energy storage battery pack (2) is connected to the power control system (3), and the power control system (3) is internally provided with power output ports of various specifications, and the power output ports of various specifications are connected to the distribution box (5) via a transmission cable; A detection control circuit is provided inside the distribution box (5), and an output end of the detection control circuit is electrically connected to a corresponding power load device and a controller (4) via an external power transmission cable, for providing output power and output control signals; The control ends of the range-extended generator set (1), the energy storage battery pack (2), the power control system (3), and the distribution box (5) are all connected to the controller (4) via wires.

2. The airport vehicle-mounted power supply system based on range-extended generator auxiliary power generation according to claim 1 is characterized by: The detection control circuit of the distribution box (5) is provided with a contactor, a relay, a sensor, a shunt and a fuse.

3. The airport vehicle-mounted power supply system based on range-extended generator auxiliary power generation according to claim 1 is characterized by: The controller (4) is provided with switches, relays, meters, sensors, and a display screen.

4. The airport vehicle-mounted power supply system based on range-extended generator auxiliary power generation according to claim 1 is characterized by: The range-extended generator set (1) specifically converts fuel into energy, causing its output shaft to rotate.

5. The airport vehicle-mounted power supply system based on range-extended generator auxiliary power generation according to claim 1 is characterized by: The energy storage battery pack (2) is specifically a rechargeable battery such as a lithium iron phosphate battery or a lithium titanate battery, and the battery specifically outputs a voltage of a DC 28V, a DC 540V, or a DC 600V.

6. The airport vehicle-mounted power supply system based on range-extended generator auxiliary power generation according to claim 1 is characterized by: The multi-specification power output ports provided inside the power control system (3) specifically include: DC 28V power port, DC 28 / 57V power port, DC 28 / 56V power port, DC 0-70V power port, DC 270V power port, DC 540V power port, AC 115 / 200V 400Hz power port, AC 220 / 380V 50Hz power port, AC 36V 400Hz power port.

7. The airport vehicle-mounted power supply system based on range-extended generator auxiliary power generation according to claim 1 is characterized by: The transmission cable specifically consists of a terminal block, a cable, a plug, and a sheath.

8. The airport vehicle-mounted power supply system based on range-extended generator auxiliary power generation according to claim 1 is characterized by: A carriage is also installed on the carrying chassis of the power supply vehicle.

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