CN-122026615-A - Method, device, equipment and medium for monitoring port shore power supply state

Abstract

The application relates to the technical field of energy monitoring, in particular to a monitoring method, a device, equipment and a medium for a port shore power supply state, wherein the method comprises the steps of acquiring multi-source state data of a port transportation hub; the method comprises the steps of determining the power quality index, the system stability index and the operation economy index of a port transportation hub according to the multi-source state data, determining the power quality state evaluation value of the port transportation hub according to the power quality index, the system stability index and the operation economy index, determining the power supply state of the port transportation hub according to the power quality state evaluation value, evaluating the power supply state of the port transportation hub, integrating scattered and professional indexes into an intuitive and comprehensive evaluation value, enabling a system to automatically and integrally evaluate the real-time power supply state of the port transportation hub, and providing an interpretable and high-precision data base for adjusting the power supply state of the port transportation hub.

Inventors

• MAO NING
• YU QI
• LIU JIE
• BAO ZHIYUAN

Assignees

• 交通运输部规划研究院

Dates

Publication Date

20260512

Application Date

20260211

Claims (10)

1. 1. A method for monitoring a port shore power supply status, comprising: acquiring multi-source state data of a port transportation hub; according to the multi-source state data, determining the electric energy quality index, the system stability index and the operation economical index of the port transportation hub; Determining an electric energy quality state evaluation value of the port transportation hub according to the electric energy quality index, the system stability index and the operation economy index; and determining the energy supply state of the port transportation hub according to the electric energy quality state evaluation value.
2. 2. The method for monitoring the power status of a port shore power according to claim 1, wherein determining the power quality index of the port transportation hub based on the multi-source status data comprises: According to the multi-source state data, determining the voltage deviation rate, the frequency deviation rate, the total harmonic distortion rate and the flicker intensity of the port transportation hub output; And determining the electric energy quality index of the port transportation hub according to the voltage deviation rate, the frequency deviation rate, the current total harmonic distortion rate and the flicker intensity.
3. 3. The method for monitoring the power supply status of port shore power according to claim 1, wherein determining the system stability index of the port transportation hub based on the multi-source status data comprises: Determining a ship shore voltage phase angle difference and a real-time insulation resistance value output by the port transportation hub according to the multi-source state data; And determining the system stability index of the port transportation hub according to the shore voltage phase angle difference and the real-time insulation resistance value.
4. 4. The method for monitoring the power supply status of a port shore power according to claim 1, wherein determining the operational economic index of the port transportation hub based on the multi-source status data comprises: determining the shore power operation efficiency, the total ship load demand and the current maximum power supply capacity of a shore power system output by the port transportation hub according to the multi-source state data; and determining the operation economical index of the port transportation hub according to the shore power operation efficiency, the total ship load requirement and the current maximum power supply capacity of the shore power system.
5. 5. A monitoring device for a port shore power supply condition, comprising: the acquisition module is used for acquiring multi-source state data of the port traffic hub; The first determining module is used for determining the electric energy quality index, the system stability index and the running economical index of the port transportation hub according to the multi-source state data; the second determining module is used for determining an electric energy quality state evaluation value of the port transportation hub according to the electric energy quality index, the system stability index and the operation economy index; And the third determining module is used for determining the energy supply state of the port transportation hub according to the electric energy quality state evaluation value.
6. 6. The method for monitoring the power supply status of port shore power according to claim 5, wherein the first determining module is specifically configured to: According to the multi-source state data, determining the voltage deviation rate, the frequency deviation rate, the total harmonic distortion rate and the flicker intensity of the port transportation hub output; And determining the electric energy quality index of the port transportation hub according to the voltage deviation rate, the frequency deviation rate, the current total harmonic distortion rate and the flicker intensity.
7. 7. The method for monitoring the power supply status of port shore power according to claim 5, wherein the first determining module is specifically configured to: Determining a ship shore voltage phase angle difference and a real-time insulation resistance value output by the port transportation hub according to the multi-source state data; And determining the system stability index of the port transportation hub according to the shore voltage phase angle difference and the real-time insulation resistance value.
8. 8. The method for monitoring the power supply status of port shore power according to claim 5, wherein the first determining module is specifically configured to: determining the shore power operation efficiency, the total ship load demand and the current maximum power supply capacity of a shore power system output by the port transportation hub according to the multi-source state data; and determining the operation economical index of the port transportation hub according to the shore power operation efficiency, the total ship load requirement and the current maximum power supply capacity of the shore power system.
9. 9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method for monitoring the power supply status of port shore power according to any of claims 1-4 when executing the program.
10. 10. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements a method for monitoring a port shore power supply status according to any of claims 1-4.

Description

Method, device, equipment and medium for monitoring port shore power supply state Technical Field The present disclosure relates generally to the field of energy monitoring technologies, and in particular, to a method, an apparatus, a device, and a medium for monitoring a power supply state of a port shore power. Background With the continual rise of port electrification and intelligence levels, shore power systems play a critical role in reducing pollutant emissions during berthing of ships and reducing energy consumption. Especially in the big background of green port construction, shore power load prediction is an important link for realizing dynamic power dispatching and optimizing management, and gradually becomes a focus of technical research. However, due to the complexity and dynamics of the shore power system load, the accuracy of its condition monitoring faces many challenges. Disclosure of Invention In view of the foregoing drawbacks or shortcomings in the prior art, it is desirable to provide a method, apparatus, device and medium for monitoring the power supply status of a port shore power, which is capable of evaluating the power supply status of a port transportation hub. In a first aspect, an embodiment of the present application provides a method for monitoring a power supply state of a port shore power, including: acquiring multi-source state data of a port transportation hub; according to the multi-source state data, determining the electric energy quality index, the system stability index and the operation economical index of the port transportation hub; Determining an electric energy quality state evaluation value of the port transportation hub according to the electric energy quality index, the system stability index and the operation economy index; and determining the energy supply state of the port transportation hub according to the electric energy quality state evaluation value. In some embodiments, determining the power quality index of the port junction from the multi-source status data comprises: According to the multi-source state data, determining the voltage deviation rate, the frequency deviation rate, the total harmonic distortion rate and the flicker intensity of the port transportation hub output; And determining the electric energy quality index of the port transportation hub according to the voltage deviation rate, the frequency deviation rate, the current total harmonic distortion rate and the flicker intensity. In some embodiments, determining a system stability index for the port junction based on the multi-source status data comprises: Determining a ship shore voltage phase angle difference and a real-time insulation resistance value output by the port transportation hub according to the multi-source state data; And determining the system stability index of the port transportation hub according to the shore voltage phase angle difference and the real-time insulation resistance value. In some embodiments, determining an operational economic index for the port junction based on the multi-source status data comprises: determining the shore power operation efficiency, the total ship load demand and the current maximum power supply capacity of a shore power system output by the port transportation hub according to the multi-source state data; and determining the operation economical index of the port transportation hub according to the shore power operation efficiency, the total ship load requirement and the current maximum power supply capacity of the shore power system. In a second aspect, an embodiment of the present application provides a monitoring device for a port shore power supply status, including: the acquisition module is used for acquiring multi-source state data of the port traffic hub; The first determining module is used for determining the electric energy quality index, the system stability index and the running economical index of the port transportation hub according to the multi-source state data; the second determining module is used for determining an electric energy quality state evaluation value of the port transportation hub according to the electric energy quality index, the system stability index and the operation economy index; And the third determining module is used for determining the energy supply state of the port transportation hub according to the electric energy quality state evaluation value. In some embodiments, the first determining module is specifically configured to: According to the multi-source state data, determining the voltage deviation rate, the frequency deviation rate, the total harmonic distortion rate and the flicker intensity of the port transportation hub output; And determining the electric energy quality index of the port transportation hub according to the voltage deviation rate, the frequency deviation rate, the current total harmonic distortion rate and the flicker intensity. In some embodiments, the first determ