Subway energy management and control system

Abstract

The utility model provides a metro energy management and control system, which belongs to the technical field of metro management and control and comprises an energy management and control platform, an edge computing controller and a data acquisition linkage terminal. The source management and control platform is connected with the edge computing controllers in the multiple stations through a transmission network, and the edge computing controllers are connected with the data acquisition linkage terminal. According to the utility model, the edge computing controller is added on the basis of the existing energy management and control system, and part of computing and control work of the energy management and control platform is moved forward to the edge computing controller, so that station-level energy management and control are close to terminal equipment, the processing capability and computing capability of real-time data are improved, and the energy consumption of a station is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of subway control and management, and particularly relates to a subway energy control and management system. Background Art

[0002] At present, the rail transit industry is developing rapidly, and digitalization and informatization have become the development trend of rail transit. However, as rail transit develops, energy loss is also increasing. In order to respond to the call for "carbon neutrality" and "carbon peak", and take the path of sustainable development and green and low-carbon, energy conservation and consumption reduction are the primary goals. Regarding energy, the conventional construction mode of subways is to independently build an energy management and control system or to have an integrated monitoring system assume the function of energy management and control. Both modes simply count energy and do not deeply explore energy-saving strategies.

[0003] The Chinese invention patent with application publication number CN110597148A discloses a subway station energy management and control system architecture, including: an energy management center, a remote transmission network, and a field subsystem; the field subsystem exchanges information with the energy management center through the remote transmission network; the field subsystem includes a subway building, a subway station, and a small vehicle depot area; a network controller and a multi-functional power monitoring terminal are set up in the subway building area; through the improvement of the subway station energy management and control system architecture, the system framework is reasonably designed, and real-time energy consumption data and real-time equipment operation status are provided for subway operation management, providing technical means and guidance for energy management. The patent stipulates that the energy management center uniformly controls the energy of the equipment in the subway building, subway station, and small vehicle depot area, and the processing cycle is long, and the energy management effect of the equipment in the subway station is not ideal. Summary of the invention

[0004] In response to the technical problems existing in the prior art, the utility model provides a subway energy management and control system. An edge computing controller is added to the existing energy management and control system, and part of the calculation and control work of the energy management and control platform is moved forward to the edge computing controller, so that the station-level energy management is close to the terminal equipment, the real-time data processing capability and computing capability are improved, and the station energy consumption is reduced.

[0005] The technical solution adopted by the utility model is: a subway energy management and control system, including an energy management and control platform, an edge computing controller and a data acquisition linkage terminal. The edge computing controller is arranged in the station, and the source management and control platform is connected to the edge computing controllers in multiple stations through a transmission network, and the edge computing controller is connected to the data acquisition linkage terminal.

[0006] Furthermore, the data collection linkage terminal is connected to the station terminal equipment for online monitoring and control of the station terminal equipment.

[0007] Furthermore, the data acquisition linkage terminal includes a modular multi-level converter, a smart meter, a circuit breaker sensor, a battery sensor, an air conditioning unit sensor, a cold water volume sensor, a liquid level sensor, a remote water meter, a smart meter, a temperature and humidity sensor, a CO2 (carbon dioxide) sensor and a dust sensor.

[0008] Furthermore, the station terminal equipment includes 10kV switchgear, 1500V switchgear, 400V switchgear, UPS (uninterruptible power supply), ventilation and air-conditioning equipment, water supply and drainage equipment, power lighting equipment and escalators.

[0009] Furthermore, the energy management and control platform is also connected with ATS (Automatic Train Monitoring System) and AFC (Automatic Ticketing and Checking System). ATS is used to obtain the driving position information of subway vehicles, and AFC is used to collect passenger flow information.

[0010] Furthermore, a convergence switch and the edge computing controller are provided in each of the stations, and the edge computing controller is connected to the transmission network through the convergence switch.

[0011] Furthermore, the aggregation switch and edge computing controller are redundantly configured.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model performs online monitoring, data collection and control of electricity, water, photovoltaics, gas or thermal energy, fuel oil and other energy sources based on the data acquisition linkage terminal, and sends the control strategy to the edge computing controller for energy coordination control. The edge computing controller analyzes the collected data of the station terminal equipment, realizes information sharing interaction and linkage, links the underlying equipment, and improves the execution of the control strategy of the upper system.

[0014] 2. The utility model sets up an edge computing controller in the station, close to the station terminal equipment, to improve the processing and computing capabilities of real-time data. At the same time, the edge computing controller can carry the equipment intelligent analysis system, enhance the real-time adjustment efficiency of the station terminal equipment, and reduce the response time of emergency failures.

[0015] 3. The utility model realizes the comprehensive control of electricity, wind energy, water energy, gas and other energy sources, realizes digital and intelligent energy management, and improves energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of an embodiment of the utility model;

[0017] Figure 2 It is a structural schematic diagram of an embodiment of the utility model.

[0018] In the figure: 1-Energy management and control platform, 2-Transmission network, 3-Aggregation switch, 4-Edge computing controller, 5-Data collection linkage terminal. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] The embodiment of the utility model provides a subway energy management and control system, such as Figure 1-Figure 2 As shown, it includes an energy management and control platform 1, an edge computing controller 4 and a data acquisition linkage terminal 5.

[0021] The source control platform 1 is connected to the edge computing controllers 4 in the plurality of stations through the transmission network 2. Conventionally, the transmission network 2 adopts a double-ring network to ensure transmission stability, and the transmission network 2 is connected to all stations of a subway line. The source control platform 1 is connected to the ATS and the AFC. The source control platform 1 uses the ATS to obtain the driving position information of the subway vehicles and uses the AFC to collect the passenger flow information.

[0022] Each station is provided with a convergence switch 3, an edge computing controller 4, a data acquisition linkage terminal 5 and a station terminal device. The edge computing controller 4 is connected to the transmission network 2 through the convergence switch 3. The data acquisition linkage terminal 5 is connected to the edge computing controller 4 and the station terminal device. The convergence switch 3 and the edge computing controller 4 are redundantly arranged, that is, each of the data acquisition linkage terminals 5 is connected to at least two of the edge computing controllers 4 at the same time, and each of the edge computing controllers 4 is connected to at least two of the convergence switches 3 at the same time.

[0023] The data acquisition linkage terminal 5 is used for online monitoring and control of the station terminal equipment. The data acquisition linkage terminal 5 includes a modular multi-level converter, a smart meter, a circuit breaker sensor, a battery sensor, an air conditioning unit sensor, a cold water volume sensor, a liquid level sensor, a remote water meter, a smart meter, a temperature and humidity sensor, a CO2 (carbon dioxide) sensor and a dust sensor. Correspondingly, the station terminal equipment includes a 10kV switch cabinet, a 1500V switch cabinet, a 400V switch cabinet, a UPS (uninterruptible power supply), ventilation and air conditioning equipment, water supply and drainage equipment, power lighting equipment and escalators.

[0024] Specifically, for power supply equipment, 10kV switch cabinet is connected to smart meter and circuit breaker sensor, 1500V switch cabinet is connected to smart meter and circuit breaker sensor, 400V switch cabinet is connected to smart meter and circuit breaker sensor, and UPS switch cabinet is connected to smart meter and battery sensor. The above-mentioned smart meter, circuit breaker sensor, battery sensor and modular multilevel converter are respectively connected to a group of edge computing controllers 4 (2 edge computing controllers 4). The bridge arm of the modular multilevel converter is composed of a series of sub-modules connected in series, and the sub-modules are composed of semiconductor power switching devices such as IGBT. The converter receives the dispatching instructions of the upper system, flexibly controls the number of sub-modules put into the upper bridge arm and the lower bridge arm, stabilizes the converter power and output characteristics, and the rectification state can maintain the stability of the DC bus voltage, and the inverter state can increase the energy feedback utilization efficiency.

[0025] For electromechanical equipment, the ventilation and air conditioning equipment switch cabinet is connected to the air conditioning unit sensor and the cold water volume sensor, the water supply and drainage equipment switch cabinet is connected to the liquid level sensor and the remote water meter, the power lighting equipment is connected to the smart meter, and the escalator is connected to the smart meter. The above-mentioned air conditioning unit sensors, cold water volume sensors, liquid level sensors, remote water meters and smart meters are respectively connected to another group of the edge computing controllers 4 (2 edge computing controllers 4).

[0026] The edge computing controller 4 is also connected to a temperature and humidity sensor, a CO2 sensor, and a dust sensor. The temperature and humidity sensor, the CO2 sensor, and the dust sensor are used to monitor the environment inside and outside the station.

[0027] The number of the edge computing controllers 4 is not limited to 2 groups, but mainly depends on the size of the station, that is, the number of the data collection linkage terminals 5 and the like.

[0028] The data acquisition linkage terminal 5 collects the operating data of the station terminal equipment in real time and transmits it to the edge computing controller 4. The edge computing controller 4 controls the station terminal equipment through the data acquisition linkage terminal 5 according to the control strategy. For example: adaptive dynamic parameter optimization of the chiller and air-conditioning unit is performed in combination with the changes in station environmental parameters and the peak and low passenger flow periods. The edge computing controller 4 transmits the operating data of the station terminal equipment it receives and the calculation results of the control strategy to the source control platform 1 through the aggregation switch 3 and the transmission network 2. The energy control platform 1 is mainly used for big data analysis and energy control.

[0029] In this embodiment, an edge computing controller 4 is set in the station, and part of the control strategies in the energy management and control platform 1 are delegated to the edge computing controller 4. The edge computing controller 4 provides edge logic control services nearby, so that the station-level energy management is close to the terminal equipment, thereby improving the processing capability and computing capability of real-time data.

[0030] The utility model is described in detail above through embodiments, but the contents are only exemplary embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. The protection scope of the utility model is defined by the claims. Anyone who utilizes the technical solution described in the utility model, or who is inspired by the technical solution of the utility model, designs a similar technical solution within the essence and protection scope of the utility model to achieve the above technical effects, or makes equal changes and improvements to the scope of application, etc., shall still belong to the scope of protection covered by the patent of the utility model.

Claims

1. A subway energy management and control system, characterized by: It includes an energy management and control platform, an edge computing controller and a data collection linkage terminal. The edge computing controller is arranged in a station. The source management and control platform is connected to the edge computing controllers in a plurality of stations through a transmission network. The edge computing controller is connected to the data collection linkage terminal. The data collection linkage terminal is connected to the station terminal equipment and is used for online monitoring and control of the station terminal equipment; A convergence switch and the edge computing controller are provided in each of the stations, and the edge computing controller is connected to the transmission network through the convergence switch.

2. A subway energy management and control system as claimed in claim 1, characterized in that: The data acquisition linkage terminal includes a modular multi-level converter, a smart meter, a circuit breaker sensor, a battery sensor, an air conditioning unit sensor, a cold water volume sensor, a liquid level sensor, a remote water meter, a smart meter, a temperature and humidity sensor, a CO2 sensor and a dust sensor.

3. A subway energy management and control system as claimed in claim 1 or 2, characterized in that: The station terminal equipment includes 10kV switch cabinet, 1500V switch cabinet, 400V switch cabinet, UPS, ventilation and air-conditioning equipment, water supply and drainage equipment, power lighting equipment and escalator.

4. A subway energy management and control system as claimed in claim 1, characterized in that: The energy management and control platform is also connected with ATS and AFC.

5. A subway energy management and control system as claimed in claim 1, characterized in that: The aggregation switch and edge computing controller are redundantly configured.

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