Microcomputer type booster station direct current power supply device

Abstract

The utility model relates to a microcomputer type booster station direct current power supply device, comprising a charging module which adopts a high frequency switch power supply technology and is used for efficiently and stably converting alternating current into direct current, connecting a storage battery and carrying out intelligent charging management on the storage battery; the feed module is used for distributing the direct-current power supply to each secondary device in the booster station and has perfect overcurrent and short-circuit protection functions; the monitoring module is provided with a microprocessor used for monitoring, controlling and managing the whole direct current system in real time, all the modules are connected, are independent of one another and work cooperatively, and high flexibility and expandability are achieved. According to the microcomputer type booster station direct-current power supply device, the modularized microcomputer type direct-current power supply system can improve the performance in the aspects of electric energy quality, electromagnetic compatibility, safety protection and the like, and better operation of the booster station is ensured.

Description

Technical Field

[0001] This utility model relates to the field of power technology, and more specifically, to a microcomputer-based DC power supply device for a booster station. Background Technology

[0002] In the power transmission process, step-up substations are responsible for raising electrical energy from low voltage levels to high voltage levels to reduce energy loss during transmission. Currently, DC power supply for step-up substations typically employs a silicon-controlled rectifier (SCR) DC control system.

[0003] However, the existing thyristor DC control system lags behind in performance in areas such as power quality, electromagnetic compatibility, and safety protection, and suffers from the following problems: Severe performance degradation: Long-term uninterrupted operation causes severe aging and wear of the thyristor components. For example, the thyristor's conduction performance deteriorates, leading to increased output voltage fluctuations and an inability to provide a stable and reliable DC power supply to the secondary equipment of the substation. This not only affects the normal operation of the equipment but also increases the risk of equipment damage. Insufficient control precision: Thyristor control technology is relatively traditional, making it difficult to achieve precise regulation of the DC output. When facing complex and variable load demands within the substation, it cannot quickly and accurately adjust the output voltage and current, affecting the stability and reliability of the power system. Difficult and costly maintenance: Due to the age of the thyristor devices, most related spare parts are discontinued and difficult to obtain. Once equipment failure occurs, repair time is long and costly, and the stability and reliability after repair are difficult to guarantee. Furthermore, it requires highly skilled maintenance personnel with specific professional knowledge and experience. Limited functionality: The existing thyristor DC control system has limited functionality, only capable of providing basic DC power supply. Lacking the intelligent monitoring, diagnostic, and communication functions necessary for modern power systems, it cannot meet the needs of power system automation and information management.

[0004] Therefore, it is urgent to upgrade the DC power supply equipment of the substation. Summary of the Invention

[0005] The technical problem to be solved by this utility model is that the thyristor-based DC control system equipment is outdated, has insufficient performance, and has limited functionality.

[0006] To address the aforementioned technical problems, this utility model provides a microcomputer-based DC power supply device for a booster station, comprising: a charging module, which employs high-frequency switching power supply technology to efficiently and stably convert AC power into DC power, connects to a storage battery, and performs intelligent charging management of the battery; a power distribution module, which distributes DC power to various secondary devices within the booster station and has comprehensive overcurrent and short-circuit protection functions; and a monitoring module, which has a microprocessor for real-time monitoring, control, and management of the entire DC system. All modules are interconnected, operating independently yet collaboratively, exhibiting high flexibility and scalability.

[0007] According to an embodiment of this utility model, the microprocessor model can be PDS6800.

[0008] According to an embodiment of this utility model, the monitoring module can be used to collect system parameters including voltage, current, and temperature in real time, and upload the data to the power monitoring center through a communication interface.

[0009] According to an embodiment of this utility model, the microcomputer-based booster station DC power supply device may further include: a battery pack.

[0010] According to an embodiment of this utility model, the battery pack can be a valve-regulated sealed lead-acid battery, model number: GFM-400. It offers superior performance and a longer lifespan.

[0011] According to an embodiment of this utility model, the monitoring module may be equipped with communication interfaces including Ethernet and RS485 to support multiple communication protocols and achieve seamless communication with other systems in the booster station and the upper-level dispatch center.

[0012] According to an embodiment of the present invention, the monitoring module may further include a web-based human-machine interface for displaying the operating data and status information of the DC system.

[0013] According to embodiments of this utility model, the microcomputer-based booster station DC power supply device can be configured in a hierarchical distributed manner.

[0014] According to an embodiment of the present invention, the hierarchical distributed setup may include a station control layer, a bay layer, and an equipment layer, wherein the station control layer includes a monitoring module for monitoring and managing the DC system; and the bay layer includes a charging module and a power supply module.

[0015] According to embodiments of this invention, the equipment layer may include a battery pack and DC load devices. This architecture improves system reliability and maintainability, and facilitates system expansion and upgrades.

[0016] Compared with the prior art, the technical solution provided by the embodiments of this utility model can achieve at least the following beneficial effects:

[0017] The DC power supply device for the step-up substation according to this utility model adopts a modular microcomputer DC power supply system, which can improve performance in terms of power quality, electromagnetic compatibility, and safety protection, thus ensuring better operation of the step-up substation.

[0018] The DC power supply device for the step-up substation according to this invention significantly improves performance, offering stable output voltage, high control precision, and the ability to quickly and accurately respond to load changes within the substation, providing reliable DC power to secondary equipment. This effectively reduces equipment failures and malfunctions caused by power supply issues, thereby enhancing the stability and reliability of the power system.

[0019] The DC power supply device for the step-up substation according to this utility model offers convenient maintenance and reduced costs. Its modular design makes maintenance easier; when a module fails, it can be directly replaced, significantly shortening repair time. Furthermore, spare parts are readily available, further reducing maintenance costs. Intelligent monitoring and diagnostic functions can promptly detect potential problems, enabling proactive maintenance and preventing malfunctions.

[0020] The DC power supply device for the step-up substation of this utility model features rich functionality and intelligent management. It incorporates communication and intelligent functions, enabling remote monitoring, operation, and management of the DC system. Maintenance personnel can monitor the system's operating status in real time through the power monitoring center or a web interface, promptly handling any anomalies and improving the efficiency and level of maintenance management. Simultaneously, its rich functionality provides strong support for the automation and informatization of power systems. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this utility model, and are not intended to limit this utility model.

[0022] Figure 1 This is a schematic diagram showing the circuit connection of the microcomputer-based booster station DC power supply device according to the present invention;

[0023] Figure 2 This is a schematic diagram showing a microcomputer-based booster station DC power supply device according to the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a limitation of quantity, but rather indicate the presence of at least one.

[0026] Figure 1 This is a schematic diagram showing the circuit connection of the microcomputer-based booster station DC power supply device according to the present invention; Figure 2 This is a schematic diagram showing a microcomputer-based booster station DC power supply device according to the present invention.

[0027] like Figure 1 and Figure 2 As shown, the microcomputer-based booster station DC power supply device includes: a charging module MT, a power supply module QA, and a monitoring module WTK.

[0028] The charging module uses high-frequency switching power supply technology to efficiently and stably convert AC power into DC power, connect to the battery, and perform intelligent charging management of the battery.

[0029] The power supply module is used to distribute DC power to various secondary devices in the substation and has comprehensive overcurrent and short-circuit protection functions.

[0030] The monitoring module has a microprocessor for real-time monitoring, control, and management of the entire DC system.

[0031] The modules are interconnected, and while they work independently, they also collaborate with each other, resulting in a high degree of flexibility and scalability.

[0032] The DC power supply device for the step-up substation according to this invention significantly improves performance, offering stable output voltage, high control precision, and the ability to quickly and accurately respond to load changes within the substation, providing reliable DC power to secondary equipment. This effectively reduces equipment failures and malfunctions caused by power supply issues, thereby enhancing the stability and reliability of the power system.

[0033] According to one or more embodiments of this utility model, the microprocessor model is PDS6800.

[0034] The DC power supply device for the step-up substation according to this utility model adopts a modular microcomputer DC power supply system, which can improve performance in terms of power quality, electromagnetic compatibility, and safety protection, thus ensuring better operation of the step-up substation.

[0035] According to one or more embodiments of the present invention, the monitoring module is used to collect parameters of the system, including voltage, current and temperature, in real time, and upload the data to the power monitoring center through a communication interface.

[0036] According to one or more embodiments of the present invention, the microcomputer-based booster station DC power supply device further includes: a battery pack.

[0037] According to one or more embodiments of this utility model, the battery pack is a valve-regulated sealed lead-acid battery, model number: GFM-400. It offers superior performance and a longer lifespan.

[0038] According to one or more embodiments of this utility model, the monitoring module is equipped with Ethernet and RS485 communication interfaces to support multiple communication protocols and achieve seamless communication with other systems in the booster station and the upper-level dispatch center.

[0039] According to one or more embodiments of the present invention, the monitoring module further includes a web-based human-machine interface for displaying the operating data and status information of the DC system.

[0040] The DC power supply device for the step-up substation of this utility model features rich functionality and intelligent management. It incorporates communication and intelligent functions, enabling remote monitoring, operation, and management of the DC system. Maintenance personnel can monitor the system's operating status in real time through the power monitoring center or a web interface, promptly handling any anomalies and improving the efficiency and level of maintenance management. Simultaneously, its rich functionality provides strong support for the automation and informatization of power systems.

[0041] According to one or more embodiments of the present invention, the microcomputer-based booster station DC power supply device adopts a hierarchical distributed configuration.

[0042] According to one or more embodiments of the present invention, the hierarchical distributed configuration includes a station control layer, a bay layer, and an equipment layer, wherein the station control layer includes a monitoring module for monitoring and managing the DC system; and the bay layer includes a charging module and a power supply module.

[0043] According to one or more embodiments of this utility model, the equipment layer includes a battery pack and DC load devices. This architecture improves the reliability and maintainability of the system and facilitates system expansion and upgrades.

[0044] The DC power supply device for the step-up substation according to this utility model offers convenient maintenance and reduced costs. Its modular design makes maintenance easier; when a module fails, it can be directly replaced, significantly shortening repair time. Furthermore, spare parts are readily available, further reducing maintenance costs. Intelligent monitoring and diagnostic functions can promptly detect potential problems, enabling proactive maintenance and preventing malfunctions.

[0045] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. A microcomputer-based DC power supply device for a booster substation, characterized in that, include: The charging module adopts high-frequency switching power supply technology to efficiently and stably convert AC power into DC power, connect to the battery, and perform intelligent charging management of the battery. The power supply module is used to distribute DC power to various secondary devices in the substation and has complete overcurrent and short-circuit protection functions. The monitoring module, equipped with a microprocessor, is used for real-time monitoring, control, and management of the entire DC system. The modules are interconnected, and while they work independently, they also collaborate with each other, resulting in a high degree of flexibility and scalability.

2. The microcomputer-based booster station DC power supply device as described in claim 1, characterized in that, The microprocessor model is PDS6800.

3. The microcomputer-based booster station DC power supply device as described in claim 2, characterized in that, The monitoring module is used to collect system parameters, including voltage, current, and temperature, in real time, and upload the data to the power monitoring center through a communication interface.

4. The microcomputer-based booster station DC power supply device as described in claim 1, characterized in that, Also includes: Battery pack.

5. The microcomputer-based booster station DC power supply device as described in claim 4, characterized in that, The battery pack is a valve-regulated sealed lead-acid battery, model GFM-400.

6. The microcomputer-based booster station DC power supply device as described in claim 1, characterized in that, The monitoring module is equipped with Ethernet and RS485 communication interfaces to support multiple communication protocols and achieve seamless communication with other systems within the booster station and the upper-level dispatch center.

7. The microcomputer-based booster station DC power supply device as described in claim 1, characterized in that, The monitoring module also includes a web-based human-machine interface for displaying the operating data and status information of the DC system.

8. The microcomputer-based booster station DC power supply device as described in claim 1, characterized in that, The microcomputer-based booster station DC power supply device adopts a hierarchical distributed configuration.

9. The microcomputer-based booster station DC power supply device as described in claim 8, characterized in that, The hierarchical distributed setup includes a station control layer, a bay layer, and an equipment layer. The station control layer includes a monitoring module for monitoring and managing the DC system; the bay layer includes a charging module and a power supply module.

10. The microcomputer-based booster station DC power supply device as described in claim 9, characterized in that, The equipment layer includes battery packs and DC load equipment.

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