A multi-energy integrated control device

Abstract

This utility model relates to a multi-energy integrated control device. The device includes an input terminal and an output terminal. The input terminal includes a mains power interface, a diesel generator interface, a photovoltaic interface, and an energy storage interface. The output terminal includes a DC output interface. The mains power interface and the diesel generator interface are connected to the internal DC bus after passing through a rectifier and filter circuit. The photovoltaic interface is connected to the internal DC bus after passing through an MPPT circuit. The energy storage interface is connected to the internal DC bus after passing through a DC-DC circuit. The internal DC bus is connected to the AC output interface via an inverter circuit, and the internal DC bus is connected to the DC output interface via a DC-DC circuit. This device adjusts the input and output according to energy supply and load consumption, thereby achieving effective real-time monitoring, helping users optimize network data centers, improve operational efficiency, and strengthen energy management.

Description

Technical Field

[0001] This utility model relates to a multi-energy fusion control device suitable for application in the field of highway transportation. Background Technology

[0002] Highway service areas and toll stations have high electricity demand. To meet the demands of green, energy-saving, and information-based development, this plan proposes fully utilizing photovoltaic resources such as buildings, rooftops, parking areas, slopes, and idle land to achieve asset-based energy conversion, transforming "passive energy consumption" into "active energy supply." Simultaneously, through intelligent means, it aims to achieve on-demand energy supply and intelligent control, proposing a multi-energy integrated equipment system deployment scheme to achieve comprehensive intelligent upgrading of equipment and energy, energy conservation, and carbon reduction, supporting the implementation of "dual-carbon" goals. Therefore, to achieve multi-energy integration and intelligent control, a multi-energy integration control device suitable for application in the highway transportation sector is proposed, which can be widely used in areas with abundant natural resources.

[0003] Multi-energy integrated control devices are suitable for use in areas with abundant natural resources in the highway transportation sector. They consist of various components including energy input interfaces, rectifier modules, inverter modules, power control modules, output control modules, and intelligent monitoring modules. These devices integrate multiple energy sources such as mains power, photovoltaics, diesel generators, and energy storage; monitor and control the status of each energy interface and load; and provide system safety monitoring and protection.

[0004] Currently, existing utility model patents generally only apply for power distribution optimization scheduling algorithms and energy-saving control equipment. There is no design for an intelligent energy scheduling device that integrates energy status and load energy consumption habits. Monitoring and control also mainly focus on the real-time usage of the energy end and the load end, without designing an intelligent energy scheduling device that integrates energy status and load energy consumption habits.

[0005] To improve the overall energy utilization rate of highway traffic systems and enhance the accuracy of load energy prediction, a patent application has been submitted for a multi-energy integrated control device. Based on typical highway traffic scenarios such as service areas and parking areas, the device integrates multiple functions such as artificial intelligence, energy management, energy conservation and carbon reduction, and data management. It improves the overall energy utilization rate of the system by controlling multiple energy sources such as photovoltaic, wind power, and energy storage. Based on recurrent neural networks, it automatically optimizes parameters through machine learning technology to improve the accuracy of load energy prediction. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-energy integrated control device. The device includes an input AC output interface and an output interface. The input interface includes a mains interface, a diesel generator interface, a photovoltaic interface, and an energy storage interface. The output interface includes a DC output interface. The mains interface and the diesel generator interface are connected to the internal DC bus after passing through a rectifier and filter circuit. The photovoltaic interface is connected to the internal DC bus after passing through an MPPT circuit. The energy storage interface is connected to the internal DC bus after passing through a DC-DC circuit. The internal DC bus is connected to the AC output interface through an inverter circuit. The internal DC bus is connected to the DC output interface through a DC-DC circuit.

[0007] The device has a built-in audible and visual alarm circuit, which can realize undervoltage alarm, overvoltage alarm, overcurrent alarm and overtemperature alarm.

[0008] The device has a built-in isolated communication circuit, which can upload device monitoring information and alarm information to the upper platform in real time, and upload them to the background environmental control center using digital communication technology.

[0009] The device has a built-in bypass switching circuit, which consists of a dual power supply switching switch and related accessories. When the equipment needs maintenance, the bypass switching circuit can be operated to cut off the main power supply circuit and connect the mains power to the load, so that the equipment enters the bypass state.

[0010] This device is equipped with a 380V AC interface, a 500V DC photovoltaic interface, a 380V AC interface for emergency diesel generators, and a 480V DC interface for energy storage, supporting both AC and DC input. The equipment integrates and internally regulates the various energy sources connected. The device can output both AC and DC energy. The AC output can provide three-phase 380V, single-phase 220V, and 800V, etc., according to the design specifications. The DC output can provide 500V, 800V, etc., as specified.

[0011] This device is equipped with undervoltage alarm, overvoltage alarm, overcurrent alarm, overtemperature alarm and corresponding protection actions. It has local audible and visual alarms and uploads alarm signals. When the monitored voltage, current or temperature signal exceeds the set threshold, the device uploads the alarm signal to the platform for monitoring personnel to manage. It can also output switch signals according to the settings, which can be linked with the trip unit to control the circuit disconnection.

[0012] This device has an RJ45 communication interface for data upload on the platform side and an RS485 communication interface for the energy side and the load side. It supports local debugging and can also be equipped with a smart gateway to upload the device's data to the platform software in the monitoring center through a switch. This enables centralized management of the front-end devices, real-time viewing of their operating status, energy supply and consumption status, energy regulation, etc.

[0013] The main function of this multi-energy integrated control device is to regulate the input and output of the device according to the energy supply and load energy consumption. It monitors the voltage and current of the photovoltaic and mains interfaces in real time, and communicates with the MPPT to monitor the current irradiance and photovoltaic energy supply status. It controls the input of photovoltaic energy to the rectifier bus through switching power devices. Simultaneously, it monitors the current consumption of each output interface and predicts energy consumption by learning from local historical electricity consumption data. By comprehensively monitoring the power status of the energy interfaces on the supply side and the load side, when the photovoltaic energy is sufficient to meet the full energy demand of the load, the control device controls the power devices on the photovoltaic side interface to connect to the DC bus. Excess energy can be used to charge the energy storage battery or fed into the grid. When the photovoltaic energy is insufficient to meet the full energy demand of the load, the control device controls the mains side interface, and the current, after rectification and filtering, is connected to the rectifier bus to supply energy to the load. When the energy consumption period is a low-price period or when mains and photovoltaic energy are insufficient, the energy storage interface is connected to supply power to the load. The device has a built-in isolated communication circuit to transmit the device's monitoring information. Information such as alarms and other data is uploaded to the upper platform in real time and then transmitted to the back-end environmental control center using digital communication technology. This enables effective real-time monitoring, helping users optimize network data centers, improve operational efficiency, and strengthen energy management. The system combines local and remote control methods to enhance operational convenience. The multi-energy integrated control device platform can be connected to other highway maintenance platforms for unified management, reducing redundant platform construction. Through the monitoring center platform software, managers can centrally manage front-end equipment and remotely view its operational status in real time. When front-end equipment malfunctions, the monitoring center can notify managers via SMS and generate work orders for relevant maintenance personnel for timely troubleshooting. This remote centralized management approach reduces on-site manpower, saves maintenance costs, and improves maintenance efficiency. Therefore, the multi-energy integrated control device is particularly suitable and important for areas and fields rich in natural resources and focused on energy conservation and carbon reduction. Attached Figure Description

[0014] A more complete understanding of the present invention and its accompanying advantages and features will be more readily apparent from the accompanying drawings and the following detailed description, wherein:

[0015] Figure 1 This is a schematic diagram of the principle of this utility model.

[0016] Figure 2 This is a schematic diagram of the system composition of this utility model. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Appendix Figure 1 This is a schematic diagram of the principle of this utility model. The device includes an input terminal AC output interface and an output terminal. The input terminal includes a mains interface, a diesel generator interface, a photovoltaic interface, and an energy storage interface. The output terminal includes a DC output interface. The mains interface and the diesel generator interface are connected to the internal DC bus after passing through a rectifier and filter circuit. The photovoltaic interface is connected to the internal DC bus after passing through an MPPT circuit. The energy storage interface is connected to the internal DC bus after passing through a DC-DC circuit. The internal DC bus is connected to the AC output interface through an inverter circuit. The internal DC bus is connected to the DC output interface through a DC-DC circuit.

[0019] The device has a built-in audible and visual alarm module, which can realize undervoltage alarm, overvoltage alarm, overcurrent alarm and overtemperature alarm.

[0020] The device has a built-in isolated communication circuit, which can upload device monitoring information and alarm information to the upper platform in real time, and upload them to the background environmental control center using digital communication technology.

[0021] The device has a built-in bypass switching circuit, which consists of a dual power supply switching switch and related accessories. When the equipment needs maintenance, by operating the bypass switching circuit, the main power supply circuit is cut off and the mains power is connected to the load, so that the equipment enters the bypass state.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above description is merely illustrative of the principles of this utility model. In practical applications, different accessories should be configured according to the specific circumstances and environmental conditions of the implementation site.

[0023] Appendix Figure 2This is a schematic diagram of the system composition of this utility model. Based on the system function and topology, the multi-energy integrated equipment is divided into a multi-cabinet composite structure, including an input / output cabinet, an MPPT cabinet, and an inverter cabinet. The input / output cabinet includes a mains interface, a diesel generator interface, a photovoltaic interface, an energy storage interface, and an output interface. It also has functions such as energy storage system charge / discharge management, system bypass, and local control, facilitating cable connection and local operation control. The MPPT cabinet mainly consists of MPPT circuits, which can input the power from the photovoltaic interface to the DC bus after being controlled by a local MPPT algorithm, supporting the operation of the downstream inverter. The inverter cabinet mainly consists of a rectifier circuit, an inverter circuit, and a transformer, which inverts the energy from the DC bus to output usable 380 / 220V AC power for the load, connecting it to the output port.

[0024] The external input sources for this device include mains power from a low-voltage feeder cabinet with an AC input interface, backup power from a diesel generator with a diesel generator interface, photovoltaic panels with a photovoltaic interface, and energy storage batteries connected to the DC bus. The output ends connect to a distribution cabinet, accommodating multiple load types and multiple load connections.

[0025] This utility model can be implemented according to the above embodiments, but its application scope is not limited thereto. The above embodiments are only to explain the implementation process of this utility model in a certain specific situation for accurately locating the location of underground pipeline wells, defect locations, and long-distance box culverts without ground structures, but they cannot be used to limit the application scope of this utility model.

Claims

1. A multi-energy integrated control device, characterized in that, The multi-energy integrated control device includes an input end and an output end. The input end includes a mains power interface, a diesel generator interface, a photovoltaic interface, and an energy storage interface. The output end includes a DC output interface. The mains power interface and the diesel generator interface are connected to the internal DC bus after passing through a rectifier and filter circuit. The photovoltaic interface is connected to the internal DC bus after passing through an MPPT circuit. The energy storage interface is connected to the internal DC bus after passing through a DC-DC circuit. The internal DC bus is connected to the AC output interface through an inverter circuit. The internal DC bus is connected to the DC output interface through a DC-DC circuit.

2. The multi-energy integrated control device as described in claim 1, characterized in that, The multi-energy integrated control device has a built-in audible and visual alarm circuit, which can realize undervoltage alarm, overvoltage alarm, overcurrent alarm and overtemperature alarm.

3. The multi-energy integrated control device as described in claim 1, characterized in that, The multi-energy integrated control device has a built-in isolated communication circuit, which can upload device monitoring information and alarm information to the upper platform in real time, and upload them to the background environmental control center using digital communication technology.

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