Power system

Abstract

The utility model relates to an electric power system, which is applied to an expressway service area, and comprises a charging pile device located in the expressway service area and used for supplying power to vehicles in the expressway service area; the power generation device is located on the highway slope and connected with the charging pile device; the control device is connected with the charging pile device and the power generation device and used for controlling the power generation device to supply power to the charging pile device. The power generation device is arranged on the side slope of the expressway, more power generation devices can be installed, and then sufficient electric energy is provided for the charging pile device, so that the charging pile does not utilize the electric energy of the expressway service area, the electric energy of the expressway service area is saved, and the occupation of an electric transducer of the expressway service area is also reduced. Meanwhile, the power generation device is arranged on the side slope of the expressway, so that damage to the hardened pavement of the service area of the expressway can be reduced, and the influence on the service area of the expressway is reduced.

Description

Technical Field

[0001] The present application relates to the field of electric power technology, and in particular to an electric power system. Background Art

[0002] With the popularity of new energy vehicles, the power supply for charging piles in highway service areas is becoming increasingly tight. In related technologies, the power supply for charging piles in highway service areas usually comes from the mains power supply or the mains-solar complementary power supply. When the charging pile power supply uses the mains power supply, the power supply from the charging pile to the new energy vehicle will occupy the capacity of the service area transformer, affecting the normal use of the highway service area. When the charging pile power supply uses the mains-solar complementary power supply, it is necessary to install a photovoltaic carport in the parking space and complement the mains power to power the charging pile. However, this requires destroying the hardened road surface of the highway service area, affecting the normal operation of the service area, and the installation capacity of the photovoltaic module is limited by the parking spaces in the service area. Utility Model Content

[0003] Based on this, it is necessary to provide a power system that does not affect the normal operation of the highway service area during construction and whose capacity is not limited by the parking spaces in the service area. The present application provides a power system, which is applied to the highway service area and includes:

[0004] A charging pile device, located in the highway service area, and configured to supply power to vehicles in the highway service area;

[0005] A power generation device is located on the slope of the highway, and the power generation device is connected to the charging pile device;

[0006] A control device is connected to the charging pile device and the power generation device, and the control device is used to control the power generation device to supply power to the charging pile device.

[0007] In one embodiment, the power generation device includes a photovoltaic power generation component and a wind power generation component, and the control device regulates the photovoltaic power generation component and / or the wind power generation component to supply power to the charging pile device.

[0008] In one embodiment, the photovoltaic power generation component includes a solar panel, and the wind power generation component includes a vertical axis breeze wind turbine.

[0009] In one embodiment, the power system comprises:

[0010] An energy storage device connects the control device and the power generation device, the control device regulates the energy storage device to store the electricity generated by the power generation device, and / or the control device regulates the energy storage device to supply power to the charging pile device.

[0011] In one embodiment, the energy storage device comprises a battery.

[0012] In one embodiment, the power system comprises:

[0013] A service area distribution network device is connected to the control device and the charging pile device. The service area distribution network device is used to access the power grid and supply power to the charging pile device, and the control device controls the maximum power supply when the service area distribution network device supplies power to the charging pile device.

[0014] In one embodiment, the service area distribution network device is connected to the power generation device, and the control device regulates the power generated by the power generation device to be input into the power grid from the service area distribution network device.

[0015] In one embodiment, the power system comprises:

[0016] An inverter device connects the service area distribution network device and the charging pile device, and the inverter device is used to convert the current output by the power grid.

[0017] In one embodiment, the power system comprises:

[0018] A DC bus is used to connect the charging pile device and the power generation device.

[0019] In one embodiment, the charging pile device includes a plurality of charging piles and a charging pile control device, and the charging piles include at least any one of an AC charging pile, a DC charging pile, an integrated charging pile, and a split charging pile.

[0020] The above-mentioned power system utilizes the highway slopes to install generators, allowing for the installation of more generators, thereby providing sufficient power to the charging piles. This eliminates the need for charging piles to utilize power from the highway service areas, conserving energy within the service areas and reducing the amount of transformer capacity required. Furthermore, installing generators on highway slopes can minimize damage to the hardened pavement in the service areas, minimizing their impact on the area. Furthermore, highway slopes are relatively large, allowing for the installation capacity to be adjusted based on road length and power demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 A schematic diagram of a power system provided in an embodiment.

[0023] Explanation of the reference numerals: power system 100; charging pile device 110; charging pile control device 111; charging pile 112; power generation device 120; photovoltaic power generation component 121; wind power generation component 122; control device 130; energy storage device 140; service area distribution network device 150; inverter device 160.

[0024] In order to better describe and illustrate the embodiments and / or examples of the utility models disclosed herein, reference may be made to one or more of the accompanying drawings. The additional details or examples used to describe the accompanying drawings should not be considered to limit the scope of the disclosed utility models, the presently described embodiments and / or examples, and any of the best modes currently understood for these utility models. DETAILED DESCRIPTION

[0025] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.

[0027] In each embodiment, unless otherwise specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two elements, or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in each embodiment based on the specific circumstances.

[0028] It will be understood that the terms "first," "second," etc. used herein may be used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element.

[0029] It can be understood that the “connection” in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if there is transmission of electrical signals or data between the connected circuits, modules, units, etc.

[0030] It is understood that “at least one” refers to one or more, “a plurality” refers to two or more, and “at least a portion of an element” refers to a portion or all of an element.

[0031] As used herein, the singular forms "a," "an," and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include," "comprising," "having," and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof. Furthermore, the term "and / or" as used in this specification includes any and all combinations of the relevant listed items.

[0032] As mentioned in the background technology, in the related art, the power supply for charging piles in highway service areas usually comes from the mains power supply or the mains-solar complementary power supply. When using the mains power supply, the power and number of charging piles are limited by the existing available load capacity of the service area. For service areas built in the early stage, the service area transformer configuration is matched with the service area load power, and its capacity is generally 500kVA or 630kVA. At present, the power of charging piles is generally divided into AC slow charging less than 15kW, DC slow charging of 40~70kW, tributary fast charging of 160kW, or liquid-cooled supercharging of 600kW. The charging time of AC slow charging less than 15kW is long and takes several hours, the charging time of DC slow charging of 40~70kW takes 1~2 hours, the charging time of DC fast charging of 160kW takes half an hour to 1 hour, and the charging time of liquid-cooled supercharging of 600kW is about 10 minutes. Service areas are generally relatively remote, and it is relatively difficult to increase the capacity of the power system. Therefore, this seriously limits the number of charging piles installed, and even fails to meet the installation requirements of charging piles.

[0033] When utilizing a complementary power source from the mains, the photovoltaic carport and the grid complement each other to power the charging piles. In this case, a photovoltaic carport must be installed in parking spaces within the existing service area. Installation of the photovoltaic carport requires disturbing the existing hardened ground, which must be restored after the carport is completed, impacting service area operations. Furthermore, the installation capacity of the photovoltaic carport is also affected by the number of parking spaces. This limited capacity means that, if the number of charging piles increases in the future or if fast or supercharging charging piles are adopted, the capacity cannot meet the charging pile power demand.

[0034] Based on this, in one embodiment, see Figure 1 , providing a power system 100 , which can be applied to a highway service area. Specifically, the power system 100 includes: a charging pile device 110 , a power generation device 120 , and a control device 130 .

[0035] Charging pile device 110 is located in a highway service area. It is understood that charging pile device 110 can be used to supply power to vehicles within the highway service area. As an example, charging pile device 110 includes multiple charging piles 112 and a charging pile control device 111. Charging piles 112 can include AC charging piles, DC charging piles, integrated charging piles, and split charging piles. This embodiment does not limit the type of charging piles 112.

[0036] Power generation device 120 is located on the side slope of the highway. Specifically, power generation device 120 may be a photovoltaic power generation assembly 121 or a wind power generation assembly 122. For example, photovoltaic power generation assembly 121 may include a solar panel, and wind power generation assembly 122 may include a vertical-axis micro-wind turbine. Alternatively, power generation device 120 may be a wind-solar hybrid power generation device. It is understood that power generation device 120 may include both photovoltaic power generation assembly 121 and wind power generation assembly 122.

[0037] The power generation device 120 is connected to the charging pile device 110. At this time, the power generation device 120 can generate electricity through wind energy or light energy to supply power to the charging pile 112, so that the charging pile 112 does not use the electricity of the highway service area.

[0038] The control device 130 connects the charging pile device 110 and the power generation device 120. The control device 130 is used to control the power generation device 120 to supply power to the charging pile device 110. As an example, the power generation device 120 includes a photovoltaic power generation component 121 and a wind power generation component 122. The control device 130 regulates the photovoltaic power generation component 121 and / or the wind power generation component 122 to supply power to the charging pile device 110. The control device 130 can connect the charging pile device 110 and the power generation device 120 via a communication connection. For example, the control device 130 can connect the charging pile device 110 and the power generation device 120 via Bluetooth or other means.

[0039] Specifically, during the day when the sunlight is bright and the wind is light, the control device 130 controls the photovoltaic power generation assembly 121 to supply power to the charging pile device 110. At night when there is no sunlight and the wind is strong, the control device 130 controls the wind power generation assembly 122 to supply power to the charging pile device 110. Alternatively, in the summer when the sunlight is bright and the wind is weak, the control device 130 controls the photovoltaic power generation assembly 121 to supply power to the charging pile device 110. In the winter when the sunlight is insufficient and the wind is strong, the control device 130 controls the wind power generation assembly 122 to supply power to the charging pile device 110.

[0040] In this embodiment, since the slopes of the highway are usually wasteland or hillsides, the power generation device 120 is set up using the slopes of the highway. More power generation devices 120 can be installed, thereby providing sufficient power to the charging pile device 110, so that the charging pile 112 does not use the power of the highway service area, saving the power of the highway service area and reducing the occupation of the transformer capacity of the highway service area.

[0041] Furthermore, installing the power generation device 120 on the highway slope can reduce damage to the hardened road surface of the highway service area and reduce the impact on the highway service area. Moreover, the highway slope area is large, and the installation capacity can be adjusted according to the road length and power demand.

[0042] In addition, the power generation device 120 of this embodiment may include a photovoltaic power generation component 121 and a wind power generation component 122. The use of a wind-solar complementary power generation system can fully utilize the complementarity of wind energy and solar energy resources to ensure that the power generation device 120 provides stable power supply to the charging pile device 110.

[0043] In one embodiment, power system 100 includes an energy storage device 140 .

[0044] The energy storage device 140 connects the control device 130 and the power generation device 120, and the control device 130 regulates the energy storage device 140 to store the electricity generated by the power generation device 120. At this time, if the power generation device 120 has surplus electricity, the control device 130 can regulate the energy storage device 140 to store the surplus electricity. When the power supply is tight in the future, for example, when the amount of electricity generated by the power generation device 120 is less than the demand of the charging pile and the energy storage device 140 has not reached the depth of discharge, the energy storage device 140 starts to discharge to replenish the missing electricity. At this time, the control device 130 regulates the energy storage device 140 to supply power to the charging pile device 110. Of course, the electricity stored in the energy storage device 140, or the surplus electricity of the power generation device 120 can also supply power to various loads in the highway service area.

[0045] The energy storage device 140 includes a battery. As an example, the battery can be installed in a highway service area. Of course, the battery can also be installed on the slope of the highway. This embodiment does not limit the specific location of the energy storage device 140.

[0046] Of course, if the electric energy stored in the energy storage device 140 is still insufficient to supply power to the charging pile device 110, the mains electricity can be used to supplement it. At this time, the power input from the mains electricity shall not be greater than the remaining power load power of the service area.

[0047] In one embodiment, the power system 100 includes a service area distribution network device 150 .

[0048] As an example, one end of the service area distribution network device 150 is connected to the national grid, and the other end is connected to the power equipment in the highway service area, thereby supplying electricity from the national grid to the service area. The service area distribution network device 150 can also be connected to the control device 130 and the charging pile device 110. In this case, the service area distribution network device 150 is used to connect to the power grid and supply power to the charging pile device 110. The control device 130 controls the maximum power supply of the service area distribution network device 150 to the charging pile device 110 to ensure power safety in the service area.

[0049] The service area distribution network device 150 can be connected to the charging pile device 110 via an inverter device 160. The inverter device 160 is used to convert the current output by the power grid. As an example, the inverter device 160 can be a bidirectional inverter. The inverter device 160 can be equipped with multiple AC-DC conversion devices. The inverter device 160 can rectify AC power into DC power that matches the power system 100 and connect it to the power system 100. It can also convert the DC power of the power system 100 into AC power and connect it to the service area distribution network device 150.

[0050] The service area distribution network device 150 can be connected to the power generation device 120, and the control device 130 can also regulate the power generated by the power generation device 120 to be input into the national power grid from the service area distribution network device 150, thereby obtaining electricity sales income.

[0051] In addition, when the power generation of the power generation device 120 is less than the demand of the charging pile and the energy storage device 140 reaches the maximum discharge depth, the service area distribution network device 150 charges the energy storage device 140, and the charging power is limited to the available capacity of the service area transformer. This data can be set in the background according to the load changes in the service area.

[0052] In one embodiment, the power system 100 includes a DC bus.

[0053] The DC bus is used to connect the charging pile device 110 and the power generation device 120. At the same time, the inverter device 160, the energy storage device 140, the power generation device 120 and the charging pile device 110 can all be connected to the DC bus.

[0054] It is understandable that the above-mentioned power system 100 can also adopt other forms, and is not limited to the forms mentioned in the above embodiments, as long as it can achieve the functions of the power system 100.

[0055] In the description of this specification, reference to the terms "some embodiments" or "other embodiments" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0056] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

[0058] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A power system, characterized in that: The power system is applied to a highway service area, and the power system includes: a charging pile device, located in the highway service area, and configured to supply power to vehicles in the highway service area; A power generation device is located on the slope of the highway, and the power generation device is connected to the charging pile device; a control device connected to the charging pile device and the power generation device, the control device being used to control the power generation device to supply power to the charging pile device; The power system includes: an energy storage device connected to the control device and the power generation device, the control device regulating the energy storage device to store the electricity generated by the power generation device, and / or regulating the energy storage device to supply power to the charging pile device, the energy storage device being disposed on a side slope of the highway; The power generation device includes a photovoltaic power generation component and a wind power generation component, and the control device regulates the photovoltaic power generation component and / or the wind power generation component to supply power to the charging pile device. During the day, the control device regulates the photovoltaic power generation component to supply power to the charging pile device, and at night, the control device regulates the wind power generation component to supply power to the charging pile device, and / or, in summer, the control device regulates the photovoltaic power generation component to supply power to the charging pile device, and in winter, the control device regulates the wind power generation component to supply power to the charging pile device. The power system further includes: A service area distribution network device is connected to the control device and the charging pile device. The service area distribution network device is used to access the power grid and supply power to the charging pile device, and the control device controls the maximum power supply of the service area distribution network device when supplying power to the charging pile device; when the power generated by the power generation device is less than the demand of the charging pile device and the energy storage device has not reached the maximum discharge depth, the energy storage device supplies power to the charging pile device; when the electric energy stored in the energy storage device is insufficient to supply power to the charging pile device, the maximum power supply power of the service area distribution network device when supplying power to the charging pile device is less than or equal to the remaining power load power of the highway service area.

2. The power system according to claim 1, characterized in that The control device is connected to the charging pile device and the power generation device via Bluetooth.

3. The power system according to claim 2, characterized in that The photovoltaic power generation component includes a solar panel, and the wind power generation component includes a vertical axis breeze wind generator.

4. The power system according to claim 1, characterized in that The charging pile device includes an AC charging pile, a DC charging pile, an integrated charging pile and a split charging pile.

5. The power system according to claim 1, characterized in that The energy storage device includes a battery.

6. The power system according to claim 1, characterized in that The service area distribution network device is connected to the power generation device, and the control device regulates the power generated by the power generation device to be input into the power grid from the service area distribution network device.

7. The power system according to claim 1, characterized in that The power system includes: An inverter device connects the service area distribution network device and the charging pile device, and the inverter device is used to convert the current output by the power grid.

8. The power system according to claim 1, characterized in that The power system includes: A DC bus is used to connect the charging pile device and the power generation device.

9. The power system according to claim 1, characterized in that The charging pile device includes a plurality of charging piles and a charging pile control device, and the charging piles include at least any one of an AC charging pile, a DC charging pile, an integrated charging pile, and a split charging pile.

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