A multi-port integrated energy router device

Abstract

The application discloses a kind of multi-port integrated energy router devices, comprising: the input side of several DC / AC power modules is connected with DC bus, and its output side is connected into AC distribution network after parallel connection;The input side of several DC / DC power modules is connected with different types of interfaces respectively, and the output side is connected with DC bus respectively;Electric central controller is connected with DC / AC power module, DC / DC power module and management scheduling module respectively;Gas turbine central controller is connected with management scheduling module and gas turbine respectively;Management scheduling module controls electric central controller and gas turbine central controller according to preset strategy respectively, and sends power scheduling instruction to DC / AC power module and DC / DC power module according to power grid energy information, to realize energy interaction. Through energy regulation and control and information interaction between ports, multi-energy flow routing and coordinated control of energy internet are realized, and coordinated operation analysis control of source-grid-load-storage is realized.

Description

Technical Field

[0001] This invention relates to the field of power network control, and in particular to a multi-port integrated energy router device. Background Technology

[0002] Faced with ever-expanding energy demand and worsening environmental problems, a single energy source can no longer meet the needs of normal human life. The Energy Internet, as a new type of smart energy ecosystem, has emerged. Multi-port energy routers, as a crucial hub of the Energy Internet, utilize multiple ports to connect to different power grids, enabling centralized processing of power generation, distribution, and consumption information. Relying on an energy management system, energy routers select the optimal grid connection method for new energy sources. A scientific grid connection scheduling and management mechanism ensures maximum access for new energy sources, reducing curtailment rates for solar and wind power and improving energy utilization. For the power grid, they select the most reliable, economical, and efficient operating mode, coordinating with relay protection devices to promptly switch faulty areas and control the operation of energy storage and reactive power harmonic compensation devices. For loads, they select the most reasonable power supply path, configuring energy flow paths based on factors such as price and losses when demand side requests power. Ultimately, the energy router achieves organic unity and efficient interaction between the "source-grid-load" system.

[0003] Existing technologies disclose power routers with multiple power supply methods, employing AC / DC hybrid buses to form AC / DC hybrid microgrids and using switch arrays to create energy channels. Current research on power routers mainly focuses on AC networks and hybrid AC / DC networks, primarily concentrating on local area networks (LANs) and backbone networks, with less attention paid to energy interconnection in off-grid networks and multiple short-distance microgrid clusters. The shortcomings of existing technologies are twofold: firstly, the number of energy ports is relatively limited, consisting only of electrical power ports, unable to absorb other energy media; secondly, current research on power routers mainly focuses on AC networks and hybrid AC / DC networks, primarily concentrating on LANs and backbone networks, with less attention paid to energy interconnection in off-grid networks and multiple short-distance microgrid clusters. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-port integrated energy router device that realizes multi-energy flow routing and coordinated control of the energy internet through energy regulation and information interaction between ports, achieves coordinated operation analysis and control of source-grid-load-storage, improves the coordination level of controllable resources, and enhances the rationality of multi-energy configuration.

[0005] To address the aforementioned technical problems, embodiments of the present invention provide a multi-port integrated energy router device, comprising: an electrical central controller, a gas turbine central controller, a management and scheduling module, several DC / AC power modules, and several DC / DC power modules;

[0006] The input sides of the plurality of DC / AC power modules are connected to the DC bus, and their output sides are connected in parallel to the AC distribution network.

[0007] The input sides of the plurality of DC / DC power modules are respectively connected to different types of interfaces, and the output sides are respectively connected to the DC bus.

[0008] The electrical central controller is connected to the DC / AC power module, the DC / DC power module, and the management and scheduling module, respectively.

[0009] The gas turbine central controller is connected to the management and scheduling module and the gas turbine, respectively.

[0010] The management and scheduling module controls the electrical central controller and the gas turbine central controller according to a preset strategy, and sends power scheduling commands to the DC / AC power module and the DC / DC power module according to the grid energy information to achieve energy interaction.

[0011] Furthermore, the DC / AC power module adopts a single-stage three-level topology.

[0012] Furthermore, the DC / AC power module includes: a DC soft-start circuit, a DC filter, a bidirectional converter unit, and an AC filter connected in sequence.

[0013] Furthermore, the DC / DC power module adopts a single-stage two-level topology.

[0014] Furthermore, the DC / DC power module includes: a battery-side soft-start circuit, a battery-side filter, a two-level DC / DC converter unit, and a DC filter connected in sequence.

[0015] Furthermore, the plurality of DC / DC power modules can be connected to energy storage batteries, photovoltaic array output interfaces and / or DC loads through the different types of interfaces.

[0016] Furthermore, the DC / DC power module is provided with contactors on both its input and output sides;

[0017] The electrical central controller is connected to several of the contactors, and controls the switching on and off of the DC / DC power modules through the contactors.

[0018] Furthermore, the multi-port integrated energy router device also includes:

[0019] The power module has its input terminal electrically connected to the DC bus, and its output terminal electrically connected to the electrical central controller, the gas turbine central controller, and the management and dispatching module, respectively.

[0020] The above-described technical solutions of the embodiments of the present invention have the following beneficial technical effects:

[0021] Through energy regulation and information exchange between ports, multi-energy flow routing and coordinated control of the energy internet have been realized, and coordinated operation analysis and control of source-grid-load-storage have been achieved, improving the coordination level of controllable resources and enhancing the rationality of multi-energy allocation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the multi-port integrated energy router device provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the DC / AC power module provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the DC / DC power module provided in an embodiment of the present invention. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0026] Please refer to Figure 1 This invention provides a multi-port integrated energy router device, comprising: an electrical central controller, a gas turbine central controller, a management and scheduling module, several DC / AC power modules, and several DC / DC power modules; the input sides of the several DC / AC power modules are connected to a DC bus, and their output sides are connected in parallel to the AC distribution network; the input sides of the several DC / DC power modules are respectively connected to different types of interfaces, and their output sides are respectively connected to the DC bus; the electrical central controller is connected to the DC / AC power modules, the DC / DC power modules, and the management and scheduling module; the gas turbine central controller is connected to the management and scheduling module and the gas turbine; the management and scheduling module controls the electrical central controller and the gas turbine central controller according to a preset strategy, and sends power scheduling commands to the DC / AC power modules and the DC / DC power modules according to grid energy information to achieve energy interaction.

[0027] On the AC grid-connected side, N DC / AC power modules are directly connected in parallel and then connected to the AC distribution network through an isolation transformer. The DC side of all DC / AC power modules is connected to the 750V DC bus. The input side of each DC / DC power module is connected to a different type of interface (energy storage battery, photovoltaic array output interface, and DC load), and the output side is directly connected to the 750V DC bus.

[0028] The above technical solutions address the challenges of integrating various clean and renewable energy sources into the power grid, enabling a multi-functional energy monitoring platform that integrates natural gas power generation, wind power, photovoltaic power generation, energy storage, and smart grids, thereby ensuring real-time power quality and the safe and stable operation of the power system.

[0029] Furthermore, the DC / AC power module adopts a single-stage three-level topology.

[0030] Further, please refer to Figure 2 The DC / AC power module includes: a DC soft-start circuit, a DC filter, a bidirectional converter unit, and an AC filter connected in sequence.

[0031] Furthermore, the DC / DC power module adopts a single-stage two-level topology.

[0032] Further, please refer to Figure 2 The DC / DC power module includes: a battery-side soft-start circuit, a battery-side filter, a two-level DC / DC converter unit, and a DC filter connected in sequence.

[0033] Furthermore, several DC / DC power modules can be connected to energy storage batteries, photovoltaic array output interfaces, and / or DC loads through different types of interfaces.

[0034] Furthermore, contactors are provided on the input and output sides of the DC / DC power module; the electrical central controller is connected to several contactors to control the switching on and off of the DC / DC power module.

[0035] Both the input and output sides of the DC / DC power module are equipped with contactors inside the power module. The opening and closing operation commands issued by the electrical central controller realize the activation and deactivation of each power module. Combined with the system's operating logic and control strategy, the energy router further realizes the interaction of various types of energy and the routing between different power flows.

[0036] Furthermore, the multi-port integrated energy router device also includes:

[0037] The power module has its input terminal electrically connected to the DC bus, and its output terminal electrically connected to the electrical central controller, the gas turbine central controller, and the management and dispatching module, respectively.

[0038] The control signals of each power module are uploaded to the electrical central controller and the gas turbine central controller. The power module control commands are issued and specific functions are implemented through information interaction between the electrical central controller, the gas turbine central controller and the energy router control system.

[0039] This multi-port integrated energy router device provides at least three electrical ports and also includes a gas port for connection. It is primarily used for centralized consumption and management of distributed energy resources. Due to its relatively low power rating, the energy router needs to improve usability, miniaturization, and intelligence while ensuring functionality, security, and reliability. External interfaces should be standardized and uniform, and data and information flow interfaces should also be kept as consistent as possible while fulfilling functional requirements.

[0040] As the hub of an AC / DC hybrid distributed energy system, the energy router enables multi-energy flow routing and coordinated control of the energy internet through energy regulation and information exchange between ports. Integrating cyber-physical systems, the energy router incorporates multi-functional software systems, enabling coordinated operation analysis and control of power generation, grid, load, and storage, as well as multi-energy complementary joint operation control of cooling, heating, and power. This improves the interactive and coordinated control level of controllable resources within the region, achieving rational allocation and complete utilization of multiple energy sources. Multi-port energy routers allow real-time two-way data interaction between power generation units and users. Data fed back through the network allows power generation units to understand user consumption habits, thereby rationally adjusting power generation to improve resource utilization.

[0041] This invention aims to protect a multi-port integrated energy router device, comprising: an electrical central controller, a gas turbine central controller, a management and scheduling module, several DC / AC power modules, and several DC / DC power modules; the input sides of the several DC / AC power modules are connected to a DC bus, and their output sides are connected in parallel to the AC distribution network; the input sides of the several DC / DC power modules are respectively connected to different types of interfaces, and their output sides are respectively connected to the DC bus; the electrical central controller is connected to the DC / AC power modules, the DC / DC power modules, and the management and scheduling module; the gas turbine central controller is connected to the management and scheduling module and the gas turbine; the management and scheduling module controls the electrical central controller and the gas turbine central controller according to a preset strategy, and sends power scheduling commands to the DC / AC power modules and the DC / DC power modules according to grid energy information to achieve energy interaction. The above technical solution has the following effects:

[0042] Through energy regulation and information exchange between ports, multi-energy flow routing and coordinated control of the energy internet have been realized, and coordinated operation analysis and control of source-grid-load-storage have been achieved, improving the coordination level of controllable resources and enhancing the rationality of multi-energy allocation.

[0043] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A multi-port integrated energy router device, characterized in that, include: Electrical central controller, gas turbine central controller, management and dispatch module, several DC / AC power modules and several DC / DC power modules; The input sides of the plurality of DC / AC power modules are connected to the DC bus, and their output sides are connected in parallel to the AC distribution network. The input sides of the plurality of DC / DC power modules are respectively connected to different types of interfaces, and the output sides are respectively connected to the DC bus. The electrical central controller is connected to the DC / AC power module, the DC / DC power module, and the management and scheduling module, respectively. The gas turbine central controller is connected to the management and scheduling module and the gas turbine, respectively. The management and scheduling module controls the electrical central controller and the gas turbine central controller according to a preset strategy, and sends power scheduling commands to the DC / AC power module and the DC / DC power module according to the grid energy information to realize energy interaction; The DC / DC power module is equipped with contactors on both its input and output sides; The electrical central controller is connected to several of the contactors, and controls the switching on and off of the DC / DC power modules through the contactors.

2. The multi-port integrated energy router device according to claim 1, characterized in that, The DC / AC power module adopts a single-level three-level topology.

3. The multi-port integrated energy router device according to claim 2, characterized in that, The DC / AC power module includes: a DC soft-start circuit, a DC filter, a bidirectional converter unit, and an AC filter connected in sequence.

4. The multi-port integrated energy router device according to claim 1, characterized in that, The DC / DC power module adopts a single-stage two-level topology.

5. The multi-port integrated energy router device according to claim 4, characterized in that, The DC / DC power module includes: a battery-side soft-start circuit, a battery-side filter, a two-level DC / DC converter unit, and a DC filter connected in sequence.

6. The multi-port integrated energy router device according to claim 1, characterized in that, The aforementioned DC / DC power modules can be connected to energy storage batteries, photovoltaic array output interfaces, and / or DC loads through the different types of interfaces.

7. The multi-port integrated energy router device according to claim 1, characterized in that, Also includes: The power module has its input terminal electrically connected to the DC bus, and its output terminal electrically connected to the electrical central controller, the gas turbine central controller, and the management and dispatching module, respectively.

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