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CN-121978555-A - Outdoor energy storage power supply data acquisition system with low power consumption and edge calculation

CN121978555ACN 121978555 ACN121978555 ACN 121978555ACN-121978555-A

Abstract

The invention relates to the technical field of data acquisition, and discloses an outdoor energy storage power supply data acquisition system with low power consumption and edge calculation, which comprises the following components: the intelligent dynamic regulation and control of the outdoor energy storage power supply data acquisition is realized through the combination analysis of the data analysis unit, the collaborative analysis unit, the probability analysis unit and the acquisition correction unit, the defect of data delay under low temperature and high load in the traditional fixed frequency acquisition mode is overcome, the data acquisition effect is ensured, the low power consumption is ensured, the real-time identification capability of hidden danger such as overdischarge and internal resistance abnormality is improved, and the cycle service life of the battery is effectively prolonged.

Inventors

  • ZHANG SHUAIBO

Assignees

  • 一览众山(厦门)电力技术有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (10)

  1. 1. An outdoor energy storage power supply data acquisition system with low power consumption edge calculation, which is characterized by comprising: The data analysis unit is used for acquiring power supply data of the target object in real time when the charge and discharge states of the target object are switched according to the edge calculation module of the target object, calculating the power supply data and generating the charge state distortion rate representing the electrochemical state inside the target object; The collaborative analysis unit is used for acquiring the surface temperature of the target object and the environment temperature of the target object in real time, carrying out collaborative calculation on the surface temperature, the environment temperature and the charge dynamic distortion rate, generating a diffusion blocking coefficient which represents the migration blocking degree of ions in the target object in the electrode material, analyzing the relation between the diffusion blocking coefficient and the real-time charge-discharge multiplying power, and generating a dynamic relaxation coefficient which is used for reflecting the load carrying capacity of the target object; the probability analysis unit is used for calculating the dynamic relaxation coefficient and the battery terminal voltage in the power supply data to generate a transient response factor representing the probability of the occurrence of operation hidden danger of the target object; The acquisition correction unit is used for determining the operation hidden danger index of the target object according to the transient response factor and dynamically adjusting the dormancy-awakening strategy of the edge calculation module according to the operation hidden danger index.
  2. 2. The system of claim 1, wherein the computing the power data to generate a charged state distortion rate indicative of an internal electrochemical state of the target object comprises: Based on the power supply data, analyzing the time length of voltage rising and falling in the charge-discharge process, and generating an interface polarization hysteresis factor representing the charge migration inertia of the electrode; and acquiring the battery rated capacity of the target object, calculating the current of the power supply data and the battery rated capacity to obtain a real-time charge-discharge multiplying power, combining the real-time charge-discharge multiplying power with an interface polarization hysteresis factor, analyzing the migration resistance of lithium ion diffusion under different charge-discharge loads, and generating a lattice diffusion blocking coefficient reflecting the smoothness of an ion transmission channel in the electrode material.
  3. 3. The system of claim 2, wherein the computing the power data to generate a charged state distortion rate indicative of an internal electrochemical state of the target object further comprises: And analyzing the local potential distortion amplitude caused by uneven ion concentration distribution in the electrode material according to the power supply data and the lattice diffusion blocking coefficient, and generating the charged state distortion rate representing the electrochemical state in the target object.
  4. 4. A low power edge computed outdoor energy storage power supply data acquisition system according to claim 3, wherein the collaborative computation of surface temperature, ambient temperature, and charged state distortion rate generates a diffusion barrier coefficient indicative of a degree of barrier to migration of ions within the target object in the electrode material, comprising: and analyzing the change of the surface temperature and the ambient temperature to respectively generate a temperature difference conduction pressure difference representing the heat exchange intensity between the battery shell and the outside and a thermal inertia drift rate representing the heat generation and heat dissipation balance state inside the battery.
  5. 5. The system of claim 4, wherein the system further comprises means for cooperatively calculating a surface temperature, an ambient temperature, and a charged state distortion rate to generate a diffusion barrier coefficient indicative of a degree of barrier to migration of ions within the target object in the electrode material, and further comprising: Combining the charge dynamic distortion rate with the temperature difference conduction pressure difference and the thermal inertia drift rate, analyzing the local thermal expansion difference inside the electrode material, and generating lattice thermal expansion distortion degree which represents the degree of the lattice structure of the electrode material to be heated and disturbed; Based on the real-time charge-discharge rate and the lattice thermal expansion distortion, the degree of ion transmission channel blockage caused by the lattice thermal expansion distortion is analyzed, and a diffusion blocking coefficient which represents the migration blocking degree of ions in the target object in the electrode material is generated.
  6. 6. The system for data collection of an outdoor energy storage power source with low power consumption edge calculation according to claim 5, wherein analyzing the relationship between the diffusion blocking coefficient and the real-time charge-discharge rate to generate a dynamic relaxation coefficient reflecting the load carrying capacity of the target object comprises: Performing association calculation on the real-time charge-discharge multiplying power and the diffusion blocking coefficient to respectively generate a dynamic load potential coefficient representing the impact degree of the load on the uniformity of the distribution of ions in the electrode and an ion concentration gradient coefficient reflecting the difference of the concentration distribution of the ions before and after charge-discharge switching; and analyzing the response rate of the electrode from the unbalanced state to the balanced state according to the dynamic load potential coefficient and the ion concentration gradient coefficient, and generating a dynamic relaxation coefficient for reflecting the load bearing capacity of the target object.
  7. 7. The system for collecting data from an outdoor energy storage power supply with low power consumption edge calculation as set forth in claim 6, wherein the calculating of the dynamic relaxation coefficient and the battery terminal voltage in the power supply data to generate a transient response factor indicative of the probability of occurrence of an operational hidden danger of the target object comprises: analyzing the blocking and overshoot degree of the battery terminal voltage in the power supply data at the switching moment of the charge and discharge state, and generating an interface charge accumulation coefficient representing the unbalanced degree of charge accumulation and discharge capacity; And (3) performing correlation calculation on the dynamic relaxation coefficient and the interface charge accumulation coefficient to generate a phase-interface response phase difference reflecting the cooperativity of the bulk ion diffusion and the interface electrochemical reaction.
  8. 8. The system for collecting data of an outdoor energy storage power supply with low power consumption edge calculation according to claim 7, wherein the system calculates a dynamic relaxation coefficient and a battery terminal voltage in the power supply data to generate a transient response factor indicating a probability of occurrence of an operation hidden danger of a target object, and further comprises: and performing cooperative calculation on the phase-interface response phase difference and the battery terminal voltage in the power supply data to generate a transient response factor representing the probability of the occurrence of operation hidden danger of the target object.
  9. 9. The system of claim 8, wherein determining the running risk index of the target object according to the transient response factor and dynamically adjusting the sleep-wake policy of the edge calculation module according to the running risk index comprises: and analyzing the irreversible damage degree of the lattice of the electrode interface induced by the accumulated impact of ions based on the transient response factor to obtain the operation hidden danger index of the target object.
  10. 10. The system of claim 9, wherein determining the running risk index of the target object according to the transient response factor and dynamically adjusting the sleep-wake policy of the edge calculation module according to the running risk index, further comprises: when the operation hidden danger index is 0, the edge calculation module enters a deep sleep mode; When the operation hidden danger index is more than 0 and less than or equal to 0.5, the edge calculation module enters a shallow sleep mode; And when the operation hidden danger index is less than or equal to 0.5 and is less than or equal to 1, stopping dormancy by the edge calculation module, and continuously keeping the awakening state to perform continuous data acquisition.

Description

Outdoor energy storage power supply data acquisition system with low power consumption and edge calculation Technical Field The invention relates to the technical field of data acquisition, in particular to an outdoor energy storage power supply data acquisition system with low-power consumption edge calculation. Background At present, in the data acquisition process of an outdoor energy storage battery, a main stream acquisition mode based on low-power consumption edge calculation is fixed-frequency intermittent acquisition-dormancy, specifically, an edge calculation module wakes up briefly after finishing core parameter acquisition of the outdoor energy storage battery, performs simple filtering denoising and format encapsulation processing on acquired battery original data, and immediately enters a low-power consumption dormancy mode, so that the energy consumption loss of the edge calculation module is reduced, and meanwhile, the preprocessed battery data is temporarily stored in a local edge node, so that extra energy consumption generated by remote data transmission is avoided, and local low-power consumption processing and storage are realized. However, the data acquisition mode still has obvious technical defects that in an outdoor low-temperature environment, electrochemical characteristics of an outdoor energy storage battery can be degraded, charge and discharge loads of the outdoor energy storage battery are dynamically fluctuated, the operation frequency and the data processing rate of an edge calculation module cannot be dynamically adjusted according to real-time charge and discharge loads of the outdoor energy storage battery by fixed frequency control logic of the existing acquisition mode, and when the outdoor energy storage battery is in high-load discharge, the rapidly-increased battery acquisition data cannot be rapidly processed by the fixed low operation frequency of the edge calculation module, so that battery data processing is delayed, and acquisition of outdoor energy storage power supply data is affected. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an outdoor energy storage power supply data acquisition system with low power consumption and edge calculation, which solves the problems. The technical aim of the invention is realized by the following technical scheme: an outdoor energy storage power supply data acquisition system for low-power edge computing, comprising: The data analysis unit is used for acquiring power supply data of the target object in real time when the charge and discharge states of the target object are switched according to the edge calculation module of the target object, calculating the power supply data and generating the charge state distortion rate representing the electrochemical state inside the target object; The collaborative analysis unit is used for acquiring the surface temperature of the target object and the environment temperature of the target object in real time, carrying out collaborative calculation on the surface temperature, the environment temperature and the charge dynamic distortion rate, generating a diffusion blocking coefficient which represents the migration blocking degree of ions in the target object in the electrode material, analyzing the relation between the diffusion blocking coefficient and the real-time charge-discharge multiplying power, and generating a dynamic relaxation coefficient which is used for reflecting the load carrying capacity of the target object; the probability analysis unit is used for calculating the dynamic relaxation coefficient and the battery terminal voltage in the power supply data to generate a transient response factor representing the probability of the occurrence of operation hidden danger of the target object; The acquisition correction unit is used for determining the operation hidden danger index of the target object according to the transient response factor and dynamically adjusting the dormancy-awakening strategy of the edge calculation module according to the operation hidden danger index. Further, the power supply data is calculated to generate a charged state distortion rate representing an electrochemical state inside the target object, including: Based on the power supply data, analyzing the time length of voltage rising and falling in the charge-discharge process, and generating an interface polarization hysteresis factor representing the charge migration inertia of the electrode; and acquiring the battery rated capacity of the target object, calculating the current of the power supply data and the battery rated capacity to obtain a real-time charge-discharge multiplying power, combining the real-time charge-discharge multiplying power with an interface polarization hysteresis factor, analyzing the migration resistance of lithium ion diffusion under different charge-discharge loads, and generating a lattice diffusion blocking coefficient re