A distributed anti-inversion communication architecture of inverter and working method thereof

By adopting a distributed inverter anti-backflow communication architecture in large-capacity multi-inverter power plants, and utilizing a unidirectional closed-loop topology and data packet loopback mechanism, the problems of poor communication scalability and uneven resource utilization in existing technologies are solved. This achieves consistency in network-wide data synchronization and anti-backflow scheduling, and improves the system's concurrent processing capabilities.

CN120856718BActive Publication Date: 2025-12-23NINGBO GINLONG TECH
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Patent Information

Application Number
CN202511375272.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-25
Publication Date
2025-12-23
Estimated Expiration
2045-09-25

AI Technical Summary

Technical Problem

Existing data acquisition devices are limited in communication distance and processing capacity in large-capacity multi-inverter sites, resulting in poor system scalability, difficulty in controlling end-to-end latency and jitter, poor cross-node consistency, uneven resource utilization, long communication time, and underutilization of local computing power.

Method used

A distributed inverter anti-reverse communication architecture is adopted, which divides multiple inverters into multiple groups, each group is responsible for by a data acquisition unit, forming a unidirectional closed ring communication topology. The data acquisition units are unidirectionally connected to each other, and the electricity meter communicates with the ring topology. Data packets are transmitted in the ring topology, and data processing and identification of data packets are completed in each cycle to ensure global data synchronization and independent decision-making.

Benefits of technology

It achieves strong communication synchronization and consistent anti-backflow response, makes full use of communication resources and local computing resources, avoids control competition in the case of asynchronous or inconsistent data acquisition by multiple data collectors, ensures the consistency of anti-backflow scheduling decisions across the entire network, and improves concurrent processing capabilities.

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Abstract

The application discloses a distributed anti-inrush communication architecture of inverters and a working method thereof. The architecture comprises a power meter, K data collectors and multiple inverters connected to a power grid. The multiple inverters are divided into K groups according to a set requirement, and K is greater than or equal to 2. Each data collector collects real-time data and issues instructions to a corresponding group of inverters. The K data collectors are sequentially connected in one-way anti-inrush communication to form a one-way closed loop communication topology. The power meter is connected in communication with the one-way closed loop communication topology, and the power meter is adapted to transmit a detected anti-inrush signal to each data collector through the one-way closed loop communication topology. The application has the advantages of strong communication synchronization, consistent anti-inrush response, full use of communication resources and local computing resources, effective avoidance of control competition in the case of asynchronous or inconsistent data of multiple data collectors, ensured consistency of anti-inrush scheduling decisions in the whole network, and improved concurrent processing capacity.
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