Multi-element energy-saving strategy system combined with tunnel illumination

Abstract

The invention relates to a multi-element energy-saving strategy system combined with tunnel lighting. The multi-element energy-saving strategy system comprises a photovoltaic system, a wind energy system, a mains supply system, a power distribution system, an energy storage system, a lighting system, a monitoring system and other electric equipment systems. The power distribution system distributes electric energy to the energy storage system, the lighting system, the monitoring system and other electric equipment systems, the photovoltaic system and the wind energy system form a wind-solar complementary system to provide green electric energy for the power distribution system, and the mains supply system and the energy storage system provide backup electric energy for the power distribution system. The monitoring system is responsible for monitoring the ambient brightness outside the tunnel and the vehicle passing condition in the tunnel in real time, the lighting system dynamically adjusts lighting equipment according to real-time data of the monitoring system, and other electric equipment systems provide guarantee for safe and normal operation of the tunnel. The purpose of the invention is to create a high-toughness tunnel energy-saving technology by realizing a tunnel illumination operation strategy and adjusting an energy supply system strategy and fusing renewable energy supply on the premise of ensuring safe operation of a tunnel.

Description

Technical Field

[0001] This invention relates to the field of tunnel power generation, grid, and load storage technology, and specifically to a multi-faceted energy-saving strategy system that combines tunnel lighting. Background Technology

[0002] Tunnel lighting systems are crucial for ensuring the safe operation of tunnels and are also a major energy-consuming component of infrastructure. According to publicly available data, the annual energy consumption of tunnel operations in my country is approximately 10.67 billion kilowatt-hours, equivalent to more than 6 million tons of CO2 emissions, with tunnel lighting systems accounting for 60%–80% of this. The high energy consumption of tunnel lighting systems is a result of their inherent safety-first, 24 / 7 operation requirements combined with traditional extensive operation models. This makes them a burden on tunnel operating costs, but also a key area for technological innovation and carbon reduction.

[0003] Against this backdrop, in order to promote the green transformation of tunnel operation and effectively reduce operating energy consumption and corresponding carbon emissions, it is urgent to combine the operating characteristics of tunnel lighting systems with the actual operation of tunnels. Under the premise of ensuring safe tunnel operation, this involves implementing tunnel lighting operation strategies and adjusting energy supply system strategies, integrating renewable energy supply, creating highly resilient tunnel energy-saving technologies, achieving complementary and synergistic systems, reducing costs and increasing efficiency, promoting the upgrading of tunnel energy supply systems towards low-carbon directions, and reducing the electricity consumption and greenhouse gas emissions of tunnel lighting systems. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-faceted energy-saving strategy system that combines tunnel lighting. Under the premise of ensuring the safe operation of the tunnel, it integrates renewable energy supply by implementing tunnel lighting operation strategies and adjusting energy supply system strategies, thereby creating a highly resilient tunnel energy-saving technology and achieving complementary synergy, cost reduction and efficiency improvement of the system.

[0005] To solve the above-mentioned technical problems, the present invention is implemented through the following technical solution: a multi-energy energy-saving strategy system combining tunnel lighting. The multi-energy-saving strategy system combining tunnel lighting includes photovoltaic system, wind power system, mains power system, energy storage system, power distribution system, lighting system, monitoring system, and other electrical equipment systems.

[0006] Furthermore, the photovoltaic system is installed in locations with good light resources such as roadside slopes, vacant plots, hillsides, and building rooftops around the tunnel, and is connected to the power distribution system after AC / DC inversion.

[0007] Furthermore, the wind power system is installed on idle land plots and hillsides with good wind resources around the tunnel, and after frequency modulation, it is connected to the power distribution system.

[0008] Furthermore, the energy storage system is installed on an unused plot of land near the tunnel entrance and exit to provide a flexible backup power supply for the power distribution system.

[0009] Furthermore, the mains power system is routed to the power distribution system by the local power grid near the tunnel, providing a rigid backup power supply for the power distribution system.

[0010] Furthermore, the power distribution system is located in the power distribution room at the tunnel entrance and exit, distributing electrical energy to all electrical equipment in the tunnel.

[0011] Furthermore, the monitoring system is installed inside and outside the tunnel, using an ambient light sensor to detect the ambient brightness outside the tunnel and a vehicle sensor to detect the vehicle movement inside the tunnel.

[0012] Furthermore, the lighting system is installed inside the tunnel, and the lighting equipment is powered by a power distribution circuit. The lighting equipment is equipped with an intelligent control module to control its operation.

[0013] Furthermore, the other electrical equipment systems are installed inside the tunnel to ensure the safe and normal operation of the tunnel.

[0014] Compared with existing energy-saving technologies and strategies, the present invention has the following advantages: The ambient light sensor collects information on the brightness of the external environment of the tunnel, combines it with information collected by the vehicle sensor on the driving conditions of vehicles inside the tunnel, analyzes the data, and combines it with the lighting operation strategy to perform intelligent, flexible, stepless dimming of the lighting equipment, thereby achieving the purpose of energy saving.

[0015] Photovoltaic systems convert solar energy into electrical energy and transmit it to the power distribution system, while wind power systems convert air kinetic energy into electrical energy and transmit it to the power distribution system. The combination of photovoltaic and wind power systems forms a wind-solar complementary system. An energy storage system is configured as a flexible backup power source for the power distribution system, and the mains power system serves as a rigid backup power source for the power distribution system. Through energy-saving operation strategies, the power distribution system is regulated to form an independent micro-circulation balanced and controllable system, thereby achieving the goal of energy saving.

[0016] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, a detailed description is provided below in conjunction with the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the specific embodiments of the present invention, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some implementations of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1This is the system logic diagram of the multi-energy-saving strategy of the present invention.

[0019] Figure 2 This is a diagram showing the physical connection relationships of the tunnel system of the present invention.

[0020] Figure 3 This is a longitudinal section view of the daytime tunnel traffic lighting strategy of the present invention.

[0021] Figure 4 This is a longitudinal section view of the nighttime tunnel driving lighting strategy of the present invention.

[0022] Figure 5 This is a longitudinal section diagram of the all-day tunnel vehicle-free lighting strategy of the present invention.

[0023] Figure 6 This is a diagram showing the flow of full-power electricity generated by the wind-solar hybrid system of the present invention.

[0024] Figure 7 This is a diagram showing the under-generated energy flow of the wind-solar hybrid system of the present invention.

[0025] Figure 8 This is a diagram showing the flow of non-generated energy in the wind-solar hybrid system of the present invention.

[0026] In the diagram: 1-Photovoltaic system, 2-Wind power system, 3-Main power system, 4-Power distribution system, 5-Energy storage system, 6-Lighting system, 7-Monitoring system, 8-Other electrical equipment systems, 11-Photovoltaic system facilities, 21-Wind power system facilities, 31-Main power system facilities, 41-Power distribution system facilities, 51-Energy storage system facilities, 61-Lighting system facilities, 71-Ambient light sensor, 72-Vehicle sensor. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] This invention relates to a multi-energy-saving strategy system combining tunnel lighting. To ensure a clear explanation of the logical strategy relationships between systems, facilities unrelated to this invention are omitted from the description in the embodiments. The actual entities of the systems involved in the following descriptions include, but are not limited to, the following facilities: The physical facilities involved in photovoltaic system 1 are briefly represented by photovoltaic system facility 11; the physical facilities involved in wind power system 2 are briefly represented by wind power system facility 21; the physical facilities involved in mains power system 3 are briefly represented by mains power system facility 31; the physical facilities involved in power distribution system 4 are briefly represented by power distribution system facility 41; the physical facilities involved in energy storage system 5 are briefly represented by energy storage system facility 51; the physical facilities involved in lighting system 6 are briefly represented by lighting system facility 61; the physical facilities involved in monitoring system 7 are briefly represented by ambient light sensor 71 and vehicle sensor 72. To ensure the completeness of this embodiment, other electrical equipment systems 8 appear as the system logic layer in this embodiment. In actual engineering applications, depending on the tunnel implementation conditions and construction scenarios, the types of equipment involved in other electrical systems are numerous, and therefore are not represented as physical facilities.

[0029] The photovoltaic system facility 11, wind power system facility 21, and mains power system facility 31 of this invention are connected to the power distribution system facility 41 by means of AC cables and communication cables being laid through pre-buried pipes and cable trays; the power distribution system facility 41 is connected to the energy storage system facility 51, lighting system facility 61, ambient light sensor 71, vehicle sensor 72, and other electrical equipment by means of AC cables and communication cables being laid through pre-buried pipes and cable trays.

[0030] During operation, this invention performs intelligent, flexible, stepless dimming of lighting equipment according to the following operating strategy: When there is vehicle traffic in the daytime tunnel ( Figure 3 As shown in the diagram, within the tunnel section where vehicles are traveling (150 meters before and 100 meters after the vehicle's location), the tunnel lighting equipment operates at full power on sunny days, and on cloudy, rainy, or snowy days, the tunnel lighting equipment operates at reduced power proportionally to the brightness outside the tunnel; in other tunnel sections without vehicles, the tunnel lighting equipment operates at reduced power to maintain the illuminance required for basic emergency lighting.

[0031] When vehicles are traveling in the tunnel at night ( Figure 4 As shown), in the tunnel section within the vehicle's driving range (the tunnel section 150 meters before and 100 meters after the vehicle's location), when road lighting is installed on the road outside the tunnel, the tunnel lighting equipment operates with reduced power based on the illuminance value of the road outside the tunnel; when there is no road lighting installed on the road outside the tunnel, the tunnel lighting equipment operates with reduced power according to the design minimum illuminance value; in other tunnel sections without vehicles, the tunnel lighting equipment operates with reduced power to maintain the illuminance required for basic emergency lighting.

[0032] No vehicles travel inside the tunnel during the day and at night. Figure 5 As shown in the figure, the tunnel lighting equipment operates at reduced power to maintain the illuminance required for basic emergency lighting throughout the tunnel.

[0033] During operation, this invention performs intelligent control of the power distribution system according to the following operating strategy: This invention utilizes wind-solar hybrid power to convert renewable energy outside the tunnel into electricity to power electrical equipment inside the tunnel. The system's power consumption strategy prioritizes the following levels: First level: lighting system 6 and monitoring system 7, which are mainly all-weather loads with stable power demand; Second level: other electrical equipment systems 8, which are mainly intermittent loads with less stable power demand; Third level: energy storage system 5, which is used to balance the real-time energy supply and demand of the entire system and improve the system's energy efficiency.

[0034] When the external environment of the tunnel has sufficient renewable energy (such as sunny days and strong winds), the wind-solar hybrid system can achieve full output (full power generation). When the first-level system equipment cannot consume the generated electricity, the second-level system equipment will consume the remaining electricity. When the second-level load still cannot consume the generated electricity, the third-level energy storage system will store the remaining generated electricity. When the third-level energy storage system is close to saturation and all electrical equipment still cannot fully consume the generated electricity, in order to ensure the energy balance of this system and protect the safety and stability of the public power grid (generally, backfeeding to the grid is not allowed), the photovoltaic system and wind power system will be completely or partially disconnected. If necessary, the public power grid system will be disconnected, thereby realizing the system's "self-generation and self-consumption, with no backfeeding of surplus electricity", forming an independent micro-circulation balanced and controllable system. Figure 6 (As shown in left 1); if the public power grid management department permits back-feeding to the grid, the remaining generated electricity can be fed into the grid, generating positive revenue. Figure 6 (As shown in right 1).

[0035] Under normal conditions of renewable energy in the external environment of the tunnel (such as cloudy days or windless weather), the wind-solar hybrid system cannot achieve full output (under-generation). The system will consume the generated electricity according to the priority of the power consumption strategy (the same as when renewable energy in the external environment of the tunnel is sufficient). When the first level completely consumes the generated electricity, or when the first and second levels completely consume the generated electricity, the remaining insufficient electricity will be supplemented by the energy storage system. Figure 7 (As shown in left 1); If the energy storage system cannot continue to replenish the remaining power (when the stored power reaches the remaining protection power of the energy storage system), the energy storage system will automatically disconnect and exit the system, and the mains power system will replenish the remaining insufficient power. The energy storage system will reconnect after the wind-solar hybrid system reaches full power generation. Figure 7 (As shown in right 1).

[0036] In situations where renewable energy sources are insufficient in the external environment of the tunnel (such as windless nights or extreme weather), the wind-solar hybrid system cannot operate to generate electricity (does not generate electricity), and the energy storage system is given priority to supply power to the energy-consuming system. Figure 8 (As shown in left 1); If the energy storage system cannot continue to supply power (when the stored energy reaches the remaining protection capacity of the energy storage system), the energy storage system will automatically disconnect and exit the system, and the mains power system will supply power to the energy-consuming system. The energy storage system will reconnect after the wind-solar hybrid system reaches full capacity. Figure 8 (As shown in right 1).

Claims

1. A multi-faceted energy-saving strategy system combining tunnel lighting, characterized in that: The system includes photovoltaic (1), wind power system (2), mains power system (3), power distribution system (4), energy storage system (5), lighting system (6), monitoring system (7), and other electrical equipment systems (8); the physical facilities involved in photovoltaic system (1) include photovoltaic system facilities (11); the physical facilities involved in wind power system (2) include wind power system facilities (21); the physical facilities involved in mains power system (3) include mains power system facilities (31); the physical facilities involved in power distribution system (4) include power distribution system facilities (41); and the physical facilities involved in energy storage system (5) include energy storage systems. The facilities (51); the physical facilities involved in the lighting system (6) include the lighting system facilities (61); the physical facilities involved in the monitoring system (7) include the ambient light sensor (71) and the vehicle sensor (72); the power distribution system facilities (41) are set up at the tunnel entrance or in the tunnel section to distribute power to all electrical equipment in the tunnel; the photovoltaic system facilities (11) are set up in locations with good light resources such as roadside slopes, idle plots, hillsides, and building roofs around the tunnel, and are connected to the power distribution system facilities (41) through AC / DC inversion and by means of AC cables and communication cables laid through pre-buried pipes and cable trays.

2. The multi-energy energy-saving strategy system combining tunnel lighting according to claim 1, characterized in that: The wind power system facility (21) is set up in locations such as idle plots of land and hillsides with good wind resources around the tunnel. After frequency conversion and frequency regulation, it is connected to the power distribution system facility (41) through AC cables and communication cables laid in pre-buried pipes and cable trays.

3. The multi-energy energy-saving strategy system combining tunnel lighting according to claim 1, characterized in that: The municipal power system facilities (31) are routed by the local power grid near the tunnel and connected to the power distribution system facilities (41) through overhead cables and communication cables laid in pre-buried pipes and cable trays.

4. The multi-energy energy-saving strategy system combining tunnel lighting according to claim 1, characterized in that: The energy storage system facility (51) is located on an idle plot of land near the tunnel entrance and exit, and is connected to the power distribution system facility (41) by means of AC cables and communication cables being laid through pre-buried pipes and cable trays.

5. The multi-energy energy-saving strategy system combining tunnel lighting according to claim 1, characterized in that: The lighting system facilities (61) are installed in the tunnel and are connected to the power distribution system facilities (41) by means of AC cables and communication cables being laid through pre-buried pipes and cable trays.

6. The multi-energy energy-saving strategy system combining tunnel lighting according to claim 1, characterized in that: An ambient light sensor (71) is installed in a location with good environmental conditions outside the tunnel and is connected to the power distribution system facilities (41) through AC cables and communication cables laid in pre-buried pipes and cable trays.

7. The multi-energy energy-saving strategy system combining tunnel lighting according to claim 1, characterized in that: The vehicle sensor (72) is installed on the inner wall of the tunnel and is connected to the power distribution system facilities (41) through AC cables and communication cables laid in pre-buried pipes and cable trays.

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