Direct-current system monitoring system and method for energy storage power station, and computer device

Abstract

The present application relates to a direct-current system monitoring system, method and apparatus for an energy storage power station, and a computer device, a storage medium and a computer program product. The method comprises: on the basis of a first communication line, respectively transmitting direct-current system monitoring data of a workshop warehouse, an upper reservoir, a lower reservoir and a switchyard to a direct-current system monitoring system backend for an energy storage power station; and on the basis of a second communication line, transmitting direct-current system monitoring data of a powerhouse to the direct-current system monitoring system backend for the energy storage power station, such that the direct-current system monitoring system backend for the energy storage power station can perform data analysis and processing on the received direct-current system monitoring data, so as to obtain a target monitoring result for the direct-current system monitoring data. By means of the system, the impact of storage battery monitoring on the normal power generation operation of an energy storage power station can be reduced, thereby ensuring the working efficiency of storage batteries; and operational defects of the storage batteries can also be detected at the initial stage of failure of the storage batteries, thereby providing a reliable basis for defect elimination of the storage batteries, and thus ensuring the safe and stable operation of the energy storage power station.

Description

Monitoring system, method and computer equipment for DC system of energy storage power station Technical Field

[0001] This application relates to the field of computer technology, and in particular to a monitoring system, method, apparatus, computer equipment, storage medium, and computer program product for a DC system of a power storage substation. Background Technology

[0002] As an important source of power for energy storage power stations, the safe and stable operation of DC systems is of paramount importance. Effective monitoring of DC systems can help to promptly identify and address potential defects.

[0003] In traditional technology, since the multiple DC systems contained in the energy storage power station are located in different places and the geographical span between the DC systems is large, the staff usually conduct on-site testing of the batteries of each DC system. However, this method of testing the batteries requires periodic power outage tests at multiple locations of the energy storage power station, which leads to a decrease in the working efficiency of the batteries in the energy storage power station. Summary of the Invention

[0004] Therefore, it is necessary to provide a monitoring system, method, device, computer equipment, computer-readable storage medium, and computer program product for a DC system of a power storage substation to address the above-mentioned technical problems.

[0005] In a first aspect, this application provides a DC system monitoring system for a pumped storage power station. The system includes a DC system monitoring system for the power plant, a DC system monitoring system for the workshop / warehouse, a DC system monitoring system for the upper reservoir, a DC system monitoring system for the lower reservoir, a DC system monitoring system for the switchyard, and a backend system for the DC system monitoring of the pumped storage power station.

[0006] The DC system monitoring system backend of the energy storage power station is connected to the DC system monitoring system of the power plant, the DC system monitoring system of the upper reservoir, the DC system monitoring system of the lower reservoir, and the DC system monitoring system of the switchyard.

[0007] The DC system monitoring system of the workshop warehouse is used to transmit the DC system monitoring data of the workshop warehouse to the DC system monitoring system backend of the energy storage power station via a first communication line; the first communication line is composed of optical fiber.

[0008] The DC system monitoring system of the upper reservoir is used to transmit the DC system monitoring data of the upper reservoir to the DC system monitoring system backend of the energy storage power station based on the first communication line.

[0009] The DC system monitoring system of the lower reservoir is used to transmit the DC system monitoring data of the lower reservoir to the DC system monitoring system backend of the energy storage power station based on the first communication line.

[0010] The DC system monitoring system of the switch station is used to transmit the DC system monitoring data of the switch station to the DC system monitoring system backend of the energy storage power station based on the first communication line.

[0011] The DC system monitoring system of the plant is used to transmit the DC system monitoring data of the plant to the DC system monitoring system backend of the energy storage power station via a second communication line; the second communication line is composed of a cable.

[0012] The DC system monitoring system backend of the energy storage power station is used to perform data analysis and processing on the received DC system monitoring data to obtain the target monitoring results of the DC system monitoring data.

[0013] In one embodiment, the system further includes a first serial port converter, an optical fiber converter, and a patch panel corresponding to the first communication line; the patch panel includes the patch panel in the workshop warehouse and the first patch panel in the factory building;

[0014] The DC system monitoring system of the workshop warehouse is also used to send the DC system monitoring data of the workshop warehouse to the first serial port converter;

[0015] The first serial port converter is used to convert the received DC system monitoring data of the workshop warehouse to obtain a first converted signal; based on the first communication line, the first converted signal is sent to the port connected to the patch panel of the workshop warehouse.

[0016] The port connected to the patch panel in the workshop warehouse is used to send the received first converted signal to the port connected to the first patch panel in the factory building based on the first communication line.

[0017] The port connected to the first patch panel of the factory building is used to send the received first converted signal to the fiber optic converter;

[0018] The fiber optic converter is used to restore the received first converted signal to the DC system monitoring data of the workshop warehouse, and send the DC system monitoring data of the workshop warehouse to the DC system monitoring system backend of the energy storage power station.

[0019] In one embodiment, the first serial port converter is further configured to convert the received DC system monitoring data of the lower reservoir to obtain a second converted signal; and send the second converted signal to the port connected to the wiring rack of the workshop warehouse based on the first communication line.

[0020] The port connected to the patch panel in the workshop warehouse is also used to send the second converted signal to the port connected to the first patch panel in the factory building;

[0021] The port connected to the first patch panel of the factory building is also used to send the received second converted signal to the fiber optic converter;

[0022] The fiber optic converter is also used to restore the received second converted signal to the DC system monitoring data of the lower reservoir, and send the DC system monitoring data of the lower reservoir to the DC system monitoring system backend of the energy storage power station.

[0023] In one embodiment, the system further includes a second wiring rack in the plant and a power distribution rack in the switch station;

[0024] The first serial port converter is also used to convert the received DC system monitoring data of the upper reservoir to obtain a third converted signal; based on the first communication line, the third converted signal is sent to the port connected to the patch panel of the switch station;

[0025] The port connected to the patch panel of the switch station is used to send the received third converted signal to the port connected to the second patch panel of the plant.

[0026] The port connected to the second patch panel of the factory building is used to send the received third converted signal to the fiber optic converter;

[0027] The fiber optic converter is also used to restore the received third converted signal to the DC system monitoring data of the upper reservoir, and send the DC system monitoring data of the upper reservoir to the DC system monitoring system backend of the energy storage power station.

[0028] In one embodiment, the first serial port converter is further configured to convert the received DC system monitoring data of the switch station to obtain a fourth converted signal; and send the fourth converted signal to the patch panel of the switch station based on the first communication line.

[0029] The switch station's distribution frame is also used to send the received fourth converted signal to the second distribution frame in the factory building;

[0030] The second patch panel in the factory building is also used to send the received fourth converted signal to the fiber optic converter;

[0031] The fiber optic converter is also used to restore the received fourth converted signal to the DC system monitoring data of the switch station, and send the DC system monitoring data of the switch station to the DC system monitoring system backend of the energy storage power station.

[0032] In one embodiment, the system further includes a second serial port converter corresponding to the second communication line;

[0033] The second serial port converter is used to convert the received DC system monitoring data of the plant to obtain converted data; and to send the converted data to the DC system monitoring system backend of the energy storage power station via the second communication line.

[0034] Secondly, this application provides a method for monitoring a DC system of a storage power station. The method includes:

[0035] The DC system monitoring system of the workshop warehouse acquires DC system monitoring data of the workshop warehouse based on a first communication line; the first communication line is composed of optical fiber.

[0036] The DC system monitoring system of the upper reservoir acquires the DC system monitoring data of the upper reservoir transmitted through the first communication line.

[0037] The DC system monitoring system of the lower reservoir acquires the DC system monitoring data of the lower reservoir transmitted through the first communication line;

[0038] The DC system monitoring system of the switch station acquires DC system monitoring data of the switch station transmitted based on the first communication line;

[0039] The DC system monitoring system of the plant acquires monitoring data of the plant's DC system transmitted via a second communication line; the second communication line is composed of a cable.

[0040] The received DC system monitoring data is analyzed and processed to obtain the target monitoring results of the DC system monitoring data.

[0041] Thirdly, this application also provides a monitoring device for a DC system of a storage power station. The device includes:

[0042] The first data acquisition module is used to acquire DC system monitoring data of the workshop warehouse transmitted by the DC system monitoring system of the workshop warehouse based on the first communication line; the first communication line is composed of optical fiber.

[0043] The second data acquisition module is used to acquire the DC system monitoring data of the upper reservoir transmitted by the DC system monitoring system of the upper reservoir based on the first communication line.

[0044] The third data acquisition module is used to acquire the DC system monitoring data of the lower reservoir transmitted by the DC system monitoring system of the lower reservoir based on the first communication line;

[0045] The fourth data acquisition module is used to acquire the DC system monitoring data of the switch station transmitted by the DC system monitoring system of the switch station based on the first communication line;

[0046] The fifth data acquisition module is used to acquire the DC system monitoring data of the factory building transmitted by the DC system monitoring system of the factory building based on the second communication line; the second communication line is composed of a cable;

[0047] The data analysis module is used to perform data analysis and processing on the received DC system monitoring data to obtain the target monitoring results of the DC system monitoring data.

[0048] Fourthly, this application also provides a computer device. The computer device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to perform the following steps:

[0049] The DC system monitoring system of the workshop warehouse acquires DC system monitoring data of the workshop warehouse based on a first communication line; the first communication line is composed of optical fiber.

[0050] The DC system monitoring system of the upper reservoir acquires the DC system monitoring data of the upper reservoir transmitted through the first communication line.

[0051] The DC system monitoring system of the lower reservoir acquires the DC system monitoring data of the lower reservoir transmitted through the first communication line;

[0052] The DC system monitoring system of the switch station acquires DC system monitoring data of the switch station transmitted based on the first communication line;

[0053] The DC system monitoring system of the plant acquires monitoring data of the plant's DC system transmitted via a second communication line; the second communication line is composed of a cable.

[0054] The received DC system monitoring data is analyzed and processed to obtain the target monitoring results of the DC system monitoring data.

[0055] Fifthly, this application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program thereon, which, when executed by a processor, performs the following steps:

[0056] The DC system monitoring system of the workshop warehouse acquires DC system monitoring data of the workshop warehouse based on a first communication line; the first communication line is composed of optical fiber.

[0057] The DC system monitoring system of the upper reservoir acquires the DC system monitoring data of the upper reservoir transmitted through the first communication line.

[0058] The DC system monitoring system of the lower reservoir acquires the DC system monitoring data of the lower reservoir transmitted through the first communication line;

[0059] The DC system monitoring system of the switch station acquires DC system monitoring data of the switch station transmitted based on the first communication line;

[0060] The DC system monitoring system of the plant acquires monitoring data of the plant's DC system transmitted via a second communication line; the second communication line is composed of a cable.

[0061] The received DC system monitoring data is analyzed and processed to obtain the target monitoring results of the DC system monitoring data.

[0062] Sixthly, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, performs the following steps:

[0063] The DC system monitoring system of the workshop warehouse acquires DC system monitoring data of the workshop warehouse based on a first communication line; the first communication line is composed of optical fiber.

[0064] The DC system monitoring system of the upper reservoir acquires the DC system monitoring data of the upper reservoir transmitted through the first communication line.

[0065] The DC system monitoring system of the lower reservoir acquires the DC system monitoring data of the lower reservoir transmitted through the first communication line;

[0066] The DC system monitoring system of the switch station acquires DC system monitoring data of the switch station transmitted based on the first communication line;

[0067] The DC system monitoring system of the plant acquires monitoring data of the plant's DC system transmitted via a second communication line; the second communication line is composed of a cable.

[0068] The received DC system monitoring data is analyzed and processed to obtain the target monitoring results of the DC system monitoring data.

[0069] The aforementioned DC system monitoring system, method, apparatus, computer equipment, storage medium, and computer program products for the aforementioned energy storage power station transmit DC system monitoring data from the workshop / warehouse, upper reservoir, lower reservoir, and switchyard DC system monitoring systems to the energy storage power station's DC system monitoring system backend via a first communication line. It also transmits DC system monitoring data from the power plant to the energy storage power station's DC system monitoring system backend via a second communication line. The energy storage power station's DC system monitoring system backend can then perform data analysis and processing on the received DC system monitoring data to obtain the target monitoring results. Using this system, data monitoring of the DC system at multiple locations within the energy storage power station is achieved, reducing the impact of DC system monitoring on the normal power generation operation of the energy storage power station and ensuring the working efficiency of the DC system. Furthermore, it can detect operational defects in the initial stage of DC system faults, providing a reliable basis for troubleshooting and effectively ensuring the safe and stable operation of the energy storage power station. Attached Figure Description

[0070] Figure 1 is a network access topology diagram of a DC system monitoring system for a power storage substation in one embodiment;

[0071] Figure 2 is a schematic diagram of the background data of the DC system of the energy storage power station in one embodiment;

[0072] Figure 3 is an application scenario diagram of the DC system monitoring method of a storage power station in one embodiment;

[0073] Figure 4 is a flowchart illustrating a method for monitoring the DC system of a power storage substation in one embodiment;

[0074] Figure 5 is a structural block diagram of a DC system monitoring device for a power storage substation in one embodiment;

[0075] Figure 6 is an internal structure diagram of a computer device in one embodiment. Detailed Implementation

[0076] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0077] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of the relevant data must comply with relevant regulations.

[0078] The DC system monitoring system for a pumped storage power station provided in this application embodiment can be applied to the network access topology shown in Figure 1. The system includes a DC system monitoring system for the power plant, a DC system monitoring system for the workshop / warehouse, a DC system monitoring system for the upper reservoir, a DC system monitoring system for the lower reservoir, a DC system monitoring system for the switchyard, and a DC system monitoring system backend for the pumped storage power station. The backend of the DC system monitoring system for the pumped storage power station is communicatively connected to the DC system monitoring systems for the power plant, the upper reservoir, the lower reservoir, and the switchyard, respectively; the second communication line is composed of a cable; the DC system monitoring system for the workshop / warehouse is used to transmit the DC system monitoring data of the workshop / warehouse to the backend of the DC system monitoring system for the pumped storage power station via the first communication line; the first communication line is composed of an optical fiber; the DC system monitoring system for the upper reservoir is used to transmit the DC system monitoring data of the upper reservoir to the backend of the DC system monitoring system for the pumped storage power station via the first communication line; the DC system monitoring system for the lower reservoir... The DC system monitoring system is used to transmit DC system monitoring data from the lower reservoir to the DC system monitoring system backend of the pumped storage power station via the first communication line; the DC system monitoring system of the switchyard is used to transmit DC system monitoring data from the switchyard to the DC system monitoring system backend of the pumped storage power station via the first communication line; the DC system monitoring system of the powerhouse is used to transmit DC system monitoring data from the powerhouse to the DC system monitoring system backend of the pumped storage power station via the second communication line; the DC system monitoring system backend of the pumped storage power station is used to perform data analysis and processing on the received DC system monitoring data to obtain the target monitoring results of the DC system monitoring data.

[0079] The first communication line is used for transmitting optical signals, and the second communication line is used for transmitting electrical signals. The transmission speed of the second communication line is lower than that of the first communication line. In practical applications, the first communication line can be an optical signal transmission medium such as an optical fiber or optical cable; the second communication line can be an electrical signal transmission medium such as an RS485 communication line.

[0080] In real-world scenarios, a pumped storage power station is a geographically large facility, encompassing multiple locations including a plant, workshops, warehouses, an upper reservoir, a lower reservoir, and a switchyard. The DC system monitoring system of the pumped storage power station is deployed in the terminal equipment of the secondary equipment room within the plant, which is geographically close to the DC system. Therefore, the transmission speed of the second communication line is sufficient to meet the data transmission requirements of the plant's DC system monitoring data. However, the workshops, warehouses, upper reservoir, lower reservoir, and switchyard are farther from the plant's secondary equipment room, and the transmission speed of the second communication line is insufficient for these locations. Therefore, the first communication line, which has a higher transmission speed than the second communication line, is used for data transmission.

[0081] Specifically, the DC system monitoring system backend of the energy storage power station is the central processing system, used to receive, analyze, and store DC system monitoring data reported by branch DC system monitoring systems, such as those in the plant, workshop / warehouse, upper reservoir, lower reservoir, and switchyard. There can be multiple sets of DC systems at each work location; that is, each work location's DC system monitoring system can measure and report monitoring data from one or more DC systems. For example, assuming the plant has 4 DC system segments, the workshop / warehouse has 2, the upper reservoir's distribution room has 1, the lower reservoir's distribution room has 1, and the switchyard has 2, totaling 10 DC system segments, the energy storage power station's DC system monitoring system backend can receive DC system monitoring data from all 10 segments.

[0082] The DC system monitoring data includes battery-related power data such as voltage, current, temperature, and internal resistance. Each DC system can also monitor and report power data from charging modules, insulation monitoring devices, and other equipment at the work site. Figure 2 shows a schematic diagram of the background data for the DC system of the energy storage power station. Each DC system monitoring system can also set different data acquisition cycles for different DC system monitoring data. For example, battery temperature, current, and voltage can be set to real-time acquisition, while battery internal resistance can be set to periodic acquisition (e.g., once every hour, once every two hours, etc.).

[0083] Furthermore, the energy storage power station can also perform data statistical processing and data analysis on all received DC system monitoring data (including DC system monitoring data from workshops, warehouses, upper reservoirs, lower reservoirs, switchyards, and power plants). This can involve converting the DC system monitoring data into charts, line graphs, curves, and other data graphs. By analyzing the data graphs for any abnormal data, alarm signals can be generated for any abnormal data to prompt staff to handle the alarm signals in a timely manner. This enables the energy storage power station's DC system monitoring system backend to perform remote monitoring, data analysis, and fault diagnosis of the DC system.

[0084] In the aforementioned DC system monitoring system for the energy storage power station, DC system monitoring data from the workshop / warehouse, upper reservoir, lower reservoir, and switchyard are transmitted to the power station's DC system monitoring backend via a first communication line. A second communication line transmits DC system monitoring data from the plant to the same backend. The backend then analyzes and processes the received data to obtain the target monitoring results. This system enables data monitoring of the DC system at multiple locations within the energy storage power station, reducing the impact of monitoring on normal power generation and ensuring system efficiency. Furthermore, it allows for the detection of operational defects in the early stages of DC system faults, providing a reliable basis for troubleshooting and effectively guaranteeing the safe and stable operation of the energy storage power station.

[0085] In one embodiment, the aforementioned DC system of the energy storage power station further includes a first serial port converter, an optical fiber converter, and a patch panel corresponding to the first communication line; the patch panel includes a patch panel for the workshop warehouse and a first patch panel for the factory building; the DC system monitoring system of the workshop warehouse is further used to send the DC system monitoring data of the workshop warehouse to the first serial port converter; the first serial port converter is used to convert the received DC system monitoring data of the workshop warehouse to obtain a first converted signal; based on the first communication line, the first converted signal is sent to the port connected to the patch panel of the workshop warehouse; the port connected to the patch panel of the workshop warehouse is used to send the received first converted signal to the port connected to the first patch panel of the factory building based on the first communication line; the port connected to the first patch panel of the factory building is used to send the received first converted signal to the optical fiber converter; the optical fiber converter is used to restore the received first converted signal to the DC system monitoring data of the workshop warehouse, and send the DC system monitoring data of the workshop warehouse to the backend of the DC system monitoring system of the energy storage power station.

[0086] The first serial port converter refers to a serial-to-fiber optic converter. This converter converts serial communication (such as RS485) to fiber optic communication, enabling connection and data transmission between serial devices and fiber optic networks, and also improving the stability of remote data transmission. In practical applications, a serial-to-fiber optic converter with model number ZLAN9153-5 can be used.

[0087] Fiber optic converters are used to convert optical signals transmitted through fiber optic networks in different types of DC systems, enabling interconnection between different fiber optic networks. It's understandable that serial-to-fiber optic converters connect the serial ports of DC systems in various locations (such as workshops, warehouses, upper and lower reservoirs) to fiber optic networks for data transmission, while fiber optic converters connect and interconnect the fiber optic networks of DC systems in various locations. Their roles and deployment scenarios in energy storage power stations differ.

[0088] Among them, patch panels, first patch panels, and second patch panels refer to optical distribution frames (ODFs). ODFs are fiber optic distribution devices specifically designed for fiber optic communication, used for fixing and protecting optical cables, and are one of the important devices in optical signal transmission. Patch panels have different core counts, such as 12 cores, 24 cores, and 48 cores. Patch panels and first patch panels are typically used to connect optical fibers between different communication devices in an information and communication equipment room, and provide port connections to transmit data signals (such as optical signals) to the connected locations. An information and communication equipment room refers to a room or area where communication equipment is centrally located.

[0089] Specifically, as shown in Figure 1, two DC systems are deployed in the workshop warehouse: Workshop Warehouse DC System I and Workshop Warehouse DC System II. The patch panel in the workshop warehouse is used to connect to the ports of communication equipment in the workshop warehouse's communication equipment room. The workshop warehouse's DC system monitoring system collects DC system monitoring data from these two DC systems respectively. The DC system monitoring systems for Workshop Warehouse DC System I and II are each connected to a ZLAN9153-5 serial-to-fiber optic converter. The workshop warehouse's DC system monitoring system transmits the DC system monitoring data collected from the I and II DC systems to the corresponding serial-to-fiber optic converters. The serial-to-fiber optic converters convert the DC system monitoring data from the I and II DC systems into optical signals, i.e., the first converted signal. Therefore, the first converted signal includes the optical signals from the I and II DC systems. Each ZLAN9153-5 serial-to-fiber optic converter is also connected to the low-voltage room cabinet in the workshop warehouse via a patch panel and a first communication line. The low-voltage room cabinet in the workshop warehouse is also connected to the communication equipment room in the workshop warehouse via the patch panel. Therefore, the optical signals of the I and II DC systems are transmitted to different ports in the corresponding communication equipment room of the workshop warehouse. Since the workshop warehouse contains a large number of communication devices (such as servers), the optical signals of the I and II DC systems in the workshop warehouse can also be transmitted to the ports connected to the first patch panel in the factory building based on the geographical location of each communication device and the ports connected to the first communication line and the patch panel in the workshop warehouse. The ports connected to the first patch panel in the factory building then transmit the received optical signals of the I and II DC systems in the workshop warehouse to secondary equipment. The secondary equipment then transmits the optical signals of the I and II DC systems in the workshop warehouse to the ZLAN9100-3 fiber optic converter. The fiber optic converter transmits the optical signals from the DC systems of workshop warehouse sections I and II to the second serial converter (i.e., serial-to-Ethernet converter). The second serial converter converts the optical signals from workshop warehouse sections I and II into electrical signals, and performs differential processing on the electrical signals to obtain the converted data. Then, the second serial converter sends the converted data to the switch in the DC system monitoring system of the energy storage power station via a second communication line. The secondary equipment refers to the network repeater, used to transmit the optical signals of monitoring data from different DC systems to the fiber optic converter.

[0090] As shown in Figure 1, the optical signal of the DC system in section I of the workshop warehouse is transmitted to the weak current room cabinet in the workshop warehouse via the serial-to-fiber optic converter corresponding to the DC system detection system in section I of the workshop warehouse. The weak current room cabinet in the workshop warehouse then transmits the received optical signal from the DC system in section I of the workshop warehouse to port 20P15-D11 in the communication room of the workshop warehouse. Here, 20P15 in "port 20P15-D11" represents the 15th communication device (such as a server) in the 20th bypass cabinet, and D11 in "port 20P15-D11" represents the 11th port in row D of that communication device. Port 20P15-D11 is based on the first communication line and the workshop warehouse. The fiber optic distribution frame in the warehouse continues to transmit the optical signal of the DC system in section I of the workshop warehouse to port 20P15-D12 of the communication equipment room in the workshop warehouse; port 20P15-D12 transmits the optical signal of the DC system in section I of the workshop warehouse to port 20P01-A09 of the communication equipment room in the workshop warehouse; port 20P01-A09 transmits the optical signal to port 11P04-A08 of the communication equipment room in the factory; through port 11P04-A08 of the communication equipment room in the factory, the optical signal of the DC system in section I of the workshop warehouse is transmitted to port 24P07 of the first distribution frame in the factory, and then the fiber optic distribution frame at port 24P07 transmits the optical signal of the DC system in section I of the workshop warehouse to the secondary equipment.

[0091] As shown in Figure 1, the optical signal of the DC system in section II of the workshop warehouse is transmitted to the low-voltage room cabinet in the workshop warehouse via the serial-to-fiber optic converter corresponding to the DC system detection system of the DC system in section II of the workshop warehouse. The low-voltage room cabinet in the workshop warehouse also transmits the received optical signal of the DC system in section II of the workshop warehouse to port 20P15-D12 of the communication equipment room in the workshop warehouse. Port 20P15-D12 then transmits the optical signal of the DC system in section II of the workshop warehouse to port 20P15-D11 of the communication equipment room in the workshop warehouse. Port D11 continues the optical signal transmission from the workshop / warehouse section II DC system to ports 20P01-A08 in the workshop / warehouse communication equipment room; from ports 20P01-A08, the optical signal continues to ports 11P04-A09 in the factory communication equipment room; from ports 11P04-A09 in the factory communication equipment room, the optical signal transmission from the workshop / warehouse section I DC system is transmitted to port 24P07 of the factory's first distribution frame; and then from the fiber optic distribution frame at port 24P07, the optical signal transmission from the workshop / warehouse section I DC system is transmitted to the secondary equipment. Therefore, the workshop / warehouse section I DC system and the workshop / warehouse section II DC system can use the same bypass cabinet, the same communication equipment, and different ports in the same row for optical signal transmission.

[0092] In this embodiment, a serial-to-fiber optic converter is used to connect the DC system of the workshop warehouse to the fiber optic network and transmit data. In addition, the fiber optic distribution frame of the workshop warehouse, the first distribution frame of the factory building, the fiber optic converter, and the serial-to-Ethernet converter are used to realize the remote transmission of DC system monitoring data of the DC system of the workshop warehouse's I and II DC systems. Taking advantage of the fact that fiber optic communication is not subject to electromagnetic interference, electromagnetic interference during transmission is effectively suppressed, thereby improving the stability and reliability of remote transmission of DC system monitoring data of the workshop warehouse.

[0093] In one embodiment, the first serial port converter is further configured to convert the received DC system monitoring data of the lower reservoir into a second converted signal; based on the first communication line, the second converted signal is sent to the port connected to the patch panel in the workshop warehouse; the port connected to the patch panel in the workshop warehouse is further configured to send the second converted signal to the port connected to the first patch panel in the factory building; the port connected to the first patch panel in the factory building is further configured to send the received second converted signal to the fiber optic converter; the fiber optic converter is further configured to restore the received second converted signal to the DC system monitoring data of the lower reservoir, and send the DC system monitoring data of the lower reservoir to the DC system monitoring system backend of the energy storage power station.

[0094] Specifically, as shown in Figure 1, a DC system is deployed in the lower reservoir. The DC system monitoring system for monitoring the lower reservoir's DC system is also connected to a ZLAN9153-5 serial-to-fiber optic converter. The DC system monitoring system transmits the DC system monitoring data collected from the lower reservoir's DC system to the corresponding ZLAN9153-5 serial-to-fiber optic converter. The serial-to-fiber optic converter converts the DC system monitoring data of the lower reservoir's DC system into an optical signal, i.e., the second converted signal. The ZLAN9153-5 serial-to-fiber optic converter is also connected to the port of the communication equipment in the workshop warehouse's information and communication room via a patch panel and a first communication line. Based on the port connected to the patch panel in the workshop warehouse via the first communication line, the optical signal of the lower reservoir's DC system is transmitted to the port connected to the first patch panel in the workshop. The port connected to the first patch panel in the workshop then transmits the received optical signal of the lower reservoir's DC system to the secondary equipment. The secondary equipment then transmits the optical signal of the lower reservoir's DC system to a ZLAN9100-3 fiber optic converter. The fiber optic converter transmits the optical signal from the DC system of the lower reservoir to the second serial converter (i.e., serial-to-Ethernet converter). The second serial converter converts the optical signal from the DC system of the lower reservoir into an electrical signal and performs differential processing on the electrical signal to obtain the converted data. Then, the second serial converter sends the converted data to the switch of the DC system monitoring system of the energy storage power station through the second communication line.

[0095] As shown in Figure 1, the optical signal of the DC system of the lower reservoir is transmitted to port 21P03-B01 of the workshop warehouse communication room via the serial-to-fiber optic converter corresponding to the DC system monitoring system of the lower reservoir. Port 21P03-B01, based on the first communication line and the patch panel of the workshop warehouse, further transmits the optical signal of the DC system of the lower reservoir to port 20P01-A07 of the workshop warehouse communication room. Port 20P01-A07 then transmits the optical signal of the DC system of the lower reservoir to port 11P04-A07 of the factory communication room. Port 11P04-A07 of the factory communication room transmits the optical signal of the DC system of the lower reservoir to port 24P07 of the first patch panel in the factory. Finally, the optical signal of the DC system of the lower reservoir is transmitted to the secondary equipment via the fiber optic patch panel at port 24P07.

[0096] In this embodiment, a serial-to-fiber optic converter was used to connect the DC system of the lower reservoir to the fiber optic network and transmit data. Furthermore, fiber optic distribution frames in the workshop and warehouse, fiber optic converters, and serial-to-Ethernet converters were used to remotely transmit monitoring data of the DC system of the lower reservoir. Utilizing the advantage of fiber optic communication being unaffected by electromagnetic interference, electromagnetic interference during transmission was effectively suppressed, improving the stability and reliability of remote transmission of monitoring data from the DC system of the lower reservoir.

[0097] In one embodiment, the aforementioned DC system of the energy storage power station further includes a second distribution frame in the powerhouse and a distribution frame in the switchyard; a first serial port converter is also used to convert the received DC system monitoring data from the upper reservoir to obtain a third converted signal; based on a first communication line, the third converted signal is sent to the port connected to the distribution frame in the switchyard; the port connected to the distribution frame in the switchyard is used to send the received third converted signal to the port connected to the second distribution frame in the powerhouse; the port connected to the second distribution frame in the powerhouse is used to send the received third converted signal to an optical fiber converter; the optical fiber converter is also used to restore the received third converted signal to the DC system monitoring data of the upper reservoir and send the DC system monitoring data of the upper reservoir to the DC system monitoring system backend of the energy storage power station.

[0098] Specifically, as shown in Figure 1, a DC system is deployed in the upper reservoir. The DC system monitoring system for the upper reservoir is connected to a ZLAN9153-5 serial-to-fiber optic converter. The monitoring system transmits the DC system monitoring data collected from the upper reservoir's DC system to the corresponding ZLAN9153-5 serial-to-fiber optic converter. The converter converts the DC system monitoring data into an optical signal, i.e., the third converted signal. The ZLAN9153-5 serial-to-fiber optic converter is also connected to the communication equipment port in the switchyard's communication room via a patch panel and a first communication line. Based on the port connected to the patch panel in the switchyard via the first communication line, the optical signal from the upper reservoir's DC system is transmitted to the port connected to the second patch panel in the plant. The port connected to the second patch panel then transmits the received optical signal from the upper reservoir's DC system to secondary equipment. The secondary equipment then transmits the optical signal from the upper reservoir's DC system to a ZLAN9100-3 fiber optic converter. The fiber optic converter transmits the optical signal from the DC system of the upper reservoir to the second serial converter (i.e., serial-to-Ethernet converter). The second serial converter converts the optical signal from the DC system of the upper reservoir into an electrical signal and performs differential processing on the electrical signal to obtain the converted data. Then, the second serial converter sends the converted data to the switch of the DC system monitoring system of the energy storage power station through the second communication line.

[0099] As shown in Figure 1, the optical signal of the DC system of the upper reservoir is transmitted to port 16P05-C7 of the switch station communication room via the serial-to-fiber optic converter corresponding to the DC system monitoring system of the upper reservoir. Port 16P05-C7, based on the first communication line and the switch station's distribution frame, further transmits the optical signal of the DC system of the upper reservoir to port 16P02-B03 of the switch station communication room. Port 16P02-B03 then transmits the optical signal of the DC system of the upper reservoir to port 11P04-B01 of the plant communication room. Port 11P04-B01 of the plant communication room transmits the optical signal of the DC system of the upper reservoir to port 24P07 of the plant's second distribution frame. Finally, the optical signal of the DC system of the upper reservoir is transmitted to the secondary equipment via the fiber optic distribution frame at port 24P07.

[0100] In this embodiment, a serial-to-fiber optic converter is used to connect the DC system of the upper reservoir to the fiber optic network and transmit data. Furthermore, the fiber optic distribution frame at the switch station, the fiber optic distribution frame in the plant, the fiber optic converter, and the serial-to-Ethernet converter enable remote data transmission of the DC system monitoring data of the upper reservoir. Utilizing the advantage of fiber optic communication being unaffected by electromagnetic interference, electromagnetic interference during transmission is effectively suppressed, improving the stability and reliability of remote transmission of the DC system monitoring data of the upper reservoir.

[0101] In one embodiment, the first serial port converter is further configured to convert the received DC system monitoring data of the switch station to obtain a fourth converted signal; based on the first communication line, the fourth converted signal is sent to the port connected to the patch panel of the switch station; the port connected to the patch panel of the switch station is used to send the received fourth converted signal to the port connected to the second patch panel of the plant; the port connected to the second patch panel of the plant is further configured to send the received fourth converted signal to the fiber optic converter; the fiber optic converter is further configured to restore the received fourth converted signal to the DC system monitoring data of the switch station, and send the DC system monitoring data of the switch station to the DC system monitoring system backend of the energy storage power station.

[0102] Specifically, as shown in Figure 1, the switchyard has two DC systems deployed: Switchyard Section I and Switchyard Section II. The switchyard's patch panel is used to connect to the ports of communication equipment in the switchyard's communication room. The switchyard's DC system monitoring system collects DC system monitoring data from both DC systems. The DC system monitoring systems for Switchyard Sections I and II are each connected to a ZLAN9153-5 serial-to-fiber optic converter. The DC system monitoring system transmits the DC system monitoring data collected from Switchyard Sections I and II to the corresponding serial-to-fiber optic converters. These converters convert the DC system monitoring data from Switchyard Sections I and II into optical signals, i.e., the fourth converted signal. Therefore, the fourth converted signal includes the optical signals from both Switchyard Section I and Switchyard Section II. Each ZLAN9153-5 serial-to-fiber optic converter is also connected to the switchyard's fiber optic patch panel. The fiber optic network of the switchyard's fiber optic patch panel connects to different communication equipment and ports in the switchyard's communication room. At this point, due to the large number of communication devices (such as servers) contained in the switching station, the optical signals of the DC systems of sections I and II of the switching station can be transmitted to the ports connected to the second distribution frame in the plant, based on the geographical location of each communication device and the ports connected to the first communication line and the switching station's distribution frame. The received optical signals from the DC systems of sections I and II of the switching station are then transmitted to secondary equipment via the ports connected to the second distribution frame in the plant. The secondary equipment then transmits the optical signals from the DC systems of sections I and II of the switching station to a ZLAN9100-3 fiber optic converter. The fiber optic converter transmits the optical signals from the DC systems of sections I and II of the switching station to a second serial port converter (i.e., a serial-to-Ethernet converter). The second serial port converter converts the optical signals from the DC systems of sections I and II of the switching station into electrical signals and performs differential processing on the electrical signals to obtain the converted data. The second serial port converter then sends the converted data to the switch in the DC system monitoring system of the energy storage power station via the second communication line.

[0103] As shown in Figure 1, the optical signal of the DC system of the DC system in section I of the switch station is transmitted to port 14P03-B12 of the switch station's communication equipment room via the serial-to-fiber optic converter corresponding to the DC system detection system of the DC system in section I of the switch station. Port 14P03-B12, based on the first communication line and the switch station's patch panel, continues to transmit the optical signal of the DC system in section I of the switch station to port 16P02-B02 of the switch station's communication equipment room. Port 16P02-B02 then transmits the optical signal of the DC system in section I of the switch station to port 11P04-B02 of the plant's communication equipment room. Through port 11P04-B02 of the plant's communication equipment room, the optical signal of the DC system in section I of the switch station is transmitted to port 24P07 of the plant's second patch panel, and then the optical fiber patch panel at port 24P07 of the second patch panel transmits the optical signal of the DC system in section I of the switch station to the secondary equipment.

[0104] As shown in Figure 1, the optical signal of the DC system of the second section of the switch station is transmitted to port 14P03-B11 of the switch station's communication equipment room via the serial-to-fiber optic converter corresponding to the DC system detection system of the second section of the switch station. Port 14P03-B11, based on the first communication line and the switch station's patch panel, continues to transmit the optical signal of the second section of the switch station's DC system to port 16P02-B01 of the switch station's communication equipment room. Port 16P02-B01 then transmits the optical signal of the second section of the switch station's DC system to port 11P04-B01 of the plant's communication equipment room. Through port 11P04-B01 of the plant's communication equipment room, the optical signal of the second section of the switch station's DC system is transmitted to port 24P07 of the plant's second patch panel, and then the optical fiber patch panel at port 24P07 of the second patch panel transmits the optical signal of the second section of the switch station's DC system to the secondary equipment.

[0105] In this embodiment, a serial-to-fiber optic converter is used to connect the DC system of the switch station to the fiber optic network and transmit data. Furthermore, the switch station's fiber optic distribution frame, the factory's fiber optic distribution frame, the fiber optic converter, and the serial-to-Ethernet converter enable remote data transmission of the DC system monitoring data from the switch station's DC system. Utilizing the advantage of fiber optic communication being unaffected by electromagnetic interference, electromagnetic interference during transmission is effectively suppressed, improving the stability and reliability of remote transmission of the switch station's DC system monitoring data.

[0106] In one embodiment, the aforementioned DC system monitoring system for the energy storage power station further includes a second serial port converter corresponding to the second communication line; the second serial port converter is used to convert the received DC system monitoring data of the power plant to obtain the converted data; and based on the second communication line, the converted data is sent to the backend of the DC system monitoring system for the energy storage power station.

[0107] The second serial port converter refers to a serial-to-Ethernet converter, which is used to convert serial communication (such as RS485) into Ethernet communication to enable serial devices to connect and transmit data with fiber optic networks.

[0108] Specifically, the plant is also equipped with a 485 module, a data communication block used for monitoring and transmitting data in the power system. The 485 module collects DC system monitoring data from the plant and transmits the collected data to a second serial port converter. The second communication line includes at least a first signal line and a second signal line. The second serial port converter also performs differential conversion on the received DC system monitoring data from the plant to obtain differential signals, which are then used as the converted data. Based on the first and second signal lines, the converted data is transmitted differentially to the DC system monitoring system backend of the energy storage power station. The DC system monitoring system backend of the energy storage power station receives the converted monitoring data transmitted from the first signal line and uses it as the first signal; receives the converted data transmitted from the second signal line and uses it as the second signal; and restores the first and second signals to the DC system monitoring data of the plant.

[0109] For example, assuming the second communication line includes a first signal line and a second signal line, the serial-to-Ethernet converter converts the DC system monitoring data of the plant into differential signals and transmits the differential signals simultaneously through the first and second signal lines. After receiving the differential signals transmitted by the first and second signal lines, the DC system monitoring system of the energy storage power station can restore the DC system monitoring data of the plant based on the voltage difference between the differential signals transmitted by the first and second signal lines.

[0110] Furthermore, as shown in Figure 1, the plant is equipped with four DC systems: 220V DC System I for Units #1 and #2, 220V DC System II for Units #1 and #2, 220V DC System I for Units #3 and #4, and 220V DC System II for Units #3 and #4. The 485 modules collect DC system monitoring data from the connected plant DC systems: 485 module 1 for monitoring 220V DC System I for Units #1 and #2, 485 module 2 for monitoring 220V DC System II for Units #1 and #2, 485 module 3 for monitoring 220V DC System I for Units #3 and #4, and 485 module 4 for monitoring 220V DC System II for Units #3 and #4. The collected DC system monitoring data is then transmitted to the corresponding serial-to-Ethernet converters. Each serial-to-Ethernet converter converts the received DC system monitoring data from the plant into electrical signals, performs differential processing on the electrical signals to obtain the converted data, and then sends the converted data to the switch in the DC system monitoring system backend of the energy storage power station. The DC system monitoring system backend of the energy storage power station restores the converted data to the DC system monitoring data of the plant.

[0111] In this embodiment, DC system monitoring data from the plant is acquired via a 485 module. A serial-to-Ethernet converter is used to transmit the differential signals of this data, which resists interference in the transmission line and improves the reliability and stability of remote communication of the DC system monitoring data. Furthermore, when the distance between the plant's DC system and the DC system monitoring system backend of the energy storage power station is relatively short, using a lower-cost cable (i.e., a second communication line) for communication can further reduce the communication cost of the DC system monitoring data.

[0112] In one embodiment, as shown in Figures 3 and 4, a method for monitoring the DC system of a storage power station is provided. This embodiment illustrates the application of this method to a terminal host of the DC system monitoring system backend of a storage power station, which is deployed in the aforementioned storage power station DC system monitoring system. It is understood that this method can also be applied to a server, and further to a system including both a terminal and a server, and is implemented through interaction between the terminal and the server. In this embodiment, the method includes the following steps:

[0113] Step S401: Obtain the DC system monitoring data of the switch station transmitted by the DC system monitoring system of the switch station based on the first communication line.

[0114] Step S402: Obtain DC system monitoring data of the workshop warehouse transmitted by the DC system monitoring system of the workshop warehouse based on the first communication line; the first communication line is composed of optical fiber.

[0115] Step S403: Obtain the DC system monitoring data of the upper reservoir transmitted by the DC system monitoring system of the upper reservoir based on the first communication line.

[0116] Step S404: Obtain the DC system monitoring data of the lower reservoir transmitted by the DC system monitoring system of the lower reservoir based on the first communication line.

[0117] Step S405: Obtain the DC system monitoring data of the factory building transmitted by the DC system monitoring system based on the second communication line; the second communication line is composed of a cable.

[0118] Step S406: Perform data analysis and processing on the received DC system monitoring data to obtain the target monitoring results of the DC system monitoring data.

[0119] The specific implementation process is described in the aforementioned monitoring system for the DC system of the energy storage power station, and will not be repeated here.

[0120] The aforementioned DC system monitoring method for the energy storage power station achieves the following beneficial effects: Battery detection data from the DC system monitoring systems of the workshop / warehouse, upper reservoir, lower reservoir, and switchyard are transmitted to the DC system monitoring system backend of the energy storage power station via a first communication line. Furthermore, DC system monitoring data from the plant is transmitted to the same backend via a second communication line. The backend of the energy storage power station's DC system monitoring system can then analyze and process the received DC system monitoring data to obtain the target monitoring results. This system enables data monitoring of the DC system at multiple locations within the energy storage power station, reducing the impact of DC system monitoring on the normal power generation operation and ensuring the efficiency of the DC system. It also allows for the detection of operational defects in the initial stages of DC system faults, providing a reliable basis for troubleshooting and effectively guaranteeing the safe and stable operation of the energy storage power station.

[0121] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0122] Based on the same inventive concept, this application also provides a DC system monitoring device for a storage power station to implement the aforementioned DC system monitoring method. The solution provided by this device is similar to the solution described in the above method. Therefore, the specific limitations in one or more embodiments of the DC system monitoring device for a storage power station provided below can be found in the limitations of the DC system monitoring method for a storage power station described above, and will not be repeated here.

[0123] In one embodiment, as shown in FIG5, a DC system monitoring device 500 for a storage power station is provided, comprising: a first data acquisition module 501, a second data acquisition module 502, a third data acquisition module 503, a fourth data acquisition module 504, a fifth data acquisition module 505, and a data analysis module 506, wherein:

[0124] The first data acquisition module 501 is used to acquire DC system monitoring data of the workshop warehouse transmitted by the DC system monitoring system of the workshop warehouse based on the first communication line; the first communication line is composed of optical fiber.

[0125] The second data acquisition module 502 is used to acquire the DC system monitoring data of the upper reservoir transmitted by the DC system monitoring system of the upper reservoir based on the first communication line.

[0126] The third data acquisition module 503 is used to acquire the DC system monitoring data of the lower reservoir transmitted by the DC system monitoring system of the lower reservoir based on the first communication line.

[0127] The fourth data acquisition module 504 is used to acquire the DC system monitoring data of the switch station transmitted by the DC system monitoring system of the switch station based on the first communication line.

[0128] The fifth data acquisition module 505 is used to acquire the DC system monitoring data of the factory building transmitted by the DC system monitoring system based on the second communication line; the second communication line is composed of a cable;

[0129] The data analysis module 506 is used to perform data analysis and processing on the received DC system monitoring data to obtain the target monitoring results of the DC system monitoring data.

[0130] Each module in the aforementioned DC system monitoring device for the energy storage power station can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the computer device's memory as software, so that the processor can call and execute the corresponding operations of each module.

[0131] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram is shown in Figure 6. The computer device includes a processor, memory, input / output interface, communication interface, display unit, and input device. The processor, memory, and input / output interface are connected via a system bus, and the communication interface, display unit, and input device are also connected to the system bus via the input / output interface. The processor of the computer device provides computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The input / output interface of the computer device is used for exchanging information between the processor and external devices. The communication interface of the computer device is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a method for monitoring a DC system of a storage power station. The display unit of the computer device is used to form a visually visible image and may be a display screen, a projection device, or a virtual reality imaging device. The display screen can be an LCD screen or an e-ink screen. The input device of the computer device can be a touch layer covering the display screen, or buttons, trackballs, or touchpads set on the casing of the computer device, or external keyboards, touchpads, or mice, etc.

[0132] Those skilled in the art will understand that the structure shown in Figure 6 is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0133] In one embodiment, a computer device is also provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps in the above method embodiments.

[0134] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon that, when executed by a processor, implements the steps in the above method embodiments.

[0135] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements the steps in the above method embodiments.

[0136] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0137] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0138] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. An energy storage power plant DC system monitoring system, characterized by, The system comprises a power plant DC system monitoring system, a workshop warehouse DC system monitoring system, an upper reservoir DC system monitoring system, a lower reservoir DC system monitoring system, a switch station DC system monitoring system, and a pumped storage power station DC system monitoring system background; The pumped storage power station DC system monitoring system background is in communication connection with the power plant DC system monitoring system, the workshop warehouse DC system monitoring system, the upper reservoir DC system monitoring system, the lower reservoir DC system monitoring system, and the switch station DC system monitoring system respectively; The workshop warehouse DC system monitoring system is configured to transmit the workshop warehouse DC system monitoring data to the pumped storage power station DC system monitoring system background based on a first communication line; The first communication line is composed of an optical cable; The upper reservoir DC system monitoring system is configured to transmit the upper reservoir DC system monitoring data to the pumped storage power station DC system monitoring system background based on the first communication line; The lower reservoir DC system monitoring system is configured to transmit the lower reservoir DC system monitoring data to the pumped storage power station DC system monitoring system background based on the first communication line; The switch station DC system monitoring system is configured to transmit the switch station DC system monitoring data to the pumped storage power station DC system monitoring system background based on the first communication line; The power plant DC system monitoring system is configured to transmit the power plant DC system monitoring data to the pumped storage power station DC system monitoring system background based on a second communication line; the second communication line is composed of an electric cable; The pumped storage power station DC system monitoring system background is configured to perform data analysis and processing on the received DC system monitoring data to obtain a target monitoring result of the DC system monitoring data.

2. The system of claim 1, wherein, The system further comprises a first serial port converter, an optical fiber converter, and a distribution frame corresponding to the first communication line; the distribution frame comprises a workshop warehouse distribution frame and a power plant first distribution frame; The workshop warehouse DC system monitoring system is further configured to send the workshop warehouse DC system monitoring data to the first serial port converter; The first serial port converter is configured to perform data conversion on the received workshop warehouse DC system monitoring data to obtain a first converted signal; and send the first converted signal to a port connected to the workshop warehouse distribution frame based on the first communication line; The port connected to the workshop warehouse distribution frame is configured to send the received first converted signal to a port connected to the power plant first distribution frame based on the first communication line; The port connected to the power plant first distribution frame is configured to send the received first converted signal to the optical fiber converter; The optical fiber converter is configured to restore the received first converted signal to the workshop warehouse DC system monitoring data, and send the workshop warehouse DC system monitoring data to the pumped storage power station DC system monitoring system background.

3. The system of claim 2, wherein, The first serial port converter is further configured to perform data conversion on the received DC system monitoring data of the lower reservoir to obtain second converted signals; and transmit the second converted signals to a port connected to the distribution frame of the workshop warehouse based on the first communication line. The port connected to the distribution frame of the workshop warehouse is further configured to transmit the second converted signals to a port connected to the first distribution frame of the factory building. The port connected to the first distribution frame of the factory building is further configured to transmit the received second converted signals to the fiber converter. The fiber converter is further configured to restore the received second converted signals to the DC system monitoring data of the lower reservoir, and transmit the DC system monitoring data of the lower reservoir to the DC system monitoring system background of the pumped storage power station.

4. The system of claim 2, wherein, The system further comprises a second distribution frame of the factory building and a power distribution frame of the switch station. The first serial port converter is further configured to perform data conversion on the received DC system monitoring data of the upper reservoir to obtain third converted signals; and transmit the third converted signals to a port connected to the distribution frame of the switch station based on the first communication line. The port connected to the distribution frame of the switch station is configured to transmit the received third converted signals to a port connected to the second distribution frame of the factory building. The port connected to the second distribution frame of the factory building is configured to transmit the received third converted signals to the fiber converter.

5. The system of claim 4, wherein, The fiber converter is further configured to restore the received third converted signals to the DC system monitoring data of the upper reservoir, and transmit the DC system monitoring data of the upper reservoir to the DC system monitoring system background of the pumped storage power station. The first serial port converter is further configured to perform data conversion on the received DC system monitoring data of the switch station to obtain fourth converted signals; and transmit the fourth converted signals to a port connected to the distribution frame of the switch station based on the first communication line. The port connected to the distribution frame of the switch station is further configured to transmit the received fourth converted signals to a port connected to the second distribution frame of the factory building. The port connected to the second distribution frame of the factory building is further configured to transmit the received fourth converted signals to the fiber converter.

6. The system of claim 1, wherein, The fiber converter is further configured to restore the received fourth converted signals to the DC system monitoring data of the switch station, and transmit the DC system monitoring data of the switch station to the DC system monitoring system background of the pumped storage power station. The system further comprises a second serial port converter corresponding to the second communication line.

7. A method of monitoring a DC system of a pumped storage power plant, characterized by, The second serial port converter is configured to perform data conversion on the received DC system monitoring data of the factory building to obtain converted data; and transmit the converted data to the DC system monitoring system background of the pumped storage power station based on the second communication line. The method comprises: obtaining DC system monitoring data of a workshop warehouse transmitted by a DC system monitoring system of the workshop warehouse based on a first communication line; and the first communication line is composed of an optical cable. The DC system monitoring system of the upper reservoir acquires the DC system monitoring data of the upper reservoir transmitted by the first communication line; The DC system monitoring system of the lower reservoir acquires the DC system monitoring data of the lower reservoir transmitted by the first communication line; The DC system monitoring system of the switch station acquires the DC system monitoring data of the switch station transmitted by the first communication line; The DC system monitoring system of the plant acquires the DC system monitoring data of the plant transmitted by the second communication line; the second communication line is composed of a cable; The received DC system monitoring data is subjected to data analysis and processing to obtain target monitoring results of the DC system monitoring data.

8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that, The processor executes the computer program to realize the steps of the method in claim 6.

9. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to realize the steps of the method in claim 6.

10. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to realize the steps of the method in claim 6.

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