Circuit control method and device, storage medium and electronic equipment

By calculating and adjusting the on-time duration of the target circuit and controlling the working state of the switch tube, the problem of difficult to suppress or enhance the charging feedback phenomenon of the energy storage battery after photovoltaic connection is solved, and the high gain state is maintained during charging and discharging is achieved, and the circuit working performance is improved.

CN119726993AActive Publication Date: 2025-03-28ANKER INNOVATIONS TECH CO LTD
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Patent Information

Application Number
CN202311265836.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-27
Publication Date
2025-03-28
Estimated Expiration
2043-09-27

AI Technical Summary

Technical Problem

In the prior art, the charging feedback phenomenon of the micro inverter to the energy storage battery after photovoltaic connection is difficult to effectively suppress or enhance, resulting in a decrease in the gain of the circuit during charging and discharging, and poor working performance.

Method used

By obtaining the phase hysteresis angle and resonance frequency of the equivalent impedance of the target circuit, the theoretical conduction time is calculated, and the actual conduction time is adjusted to determine the target conduction time, thereby controlling the working state of the switch tube and adjusting the charging feedback phenomenon.

Benefits of technology

It realizes the high gain state during charging and discharging, improves the working performance of the target circuit, enhances or suppresses the charging feedback phenomenon, and improves the overall circuit efficiency.

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Abstract

The invention discloses a circuit control method and device, a storage medium and electronic equipment, and the method comprises the steps: obtaining a phase lag angle and a resonance frequency of equivalent impedance, obtaining a theoretical conduction time length based on the phase lag angle and the resonance frequency, obtaining a load voltage, a power supply voltage, a transformation ratio and an actual conduction time length, when the load voltage is smaller than a target voltage, reducing the actual conduction duration by unit duration to obtain a first conduction duration, determining a target conduction duration based on the first conduction duration and a theoretical conduction duration, and when the load voltage is larger than a preset voltage, increasing the actual conduction duration by unit duration to obtain a second conduction duration, and determining a target conduction duration based on the second conduction duration and the half-cycle duration, and adopting the target conduction duration to control the working state of a switching tube in the target circuit. According to the invention, the charging feedback phenomenon of the target circuit is controlled, so that the target circuit can still work in a high-gain state during charging and discharging, and the working performance of the target circuit is improved.
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