AES has been granted a patent for an arrangement to compensate for voltage drops in a power supply network. The system includes converter systems connected to different distributions, with independent line paths and battery systems for voltage dip compensation. The arrangement ensures voltage stability at critical loads during faults. GlobalData’s report on AES gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on AES, Dynamic grid loading was a key innovation area identified from patents. AES's grant share as of January 2024 was 50%. Grant share is based on the ratio of number of grants to total number of patents.

Voltage dip compensation system for power supply network

Source: United States Patent and Trademark Office (USPTO). Credit: The AES Corp

The granted patent (Publication Number: US11881712B2) discloses an arrangement for compensating for voltage dips in a power supply network. The arrangement includes at least one first converter system and a second converter system, both converting between alternating current and direct current. The direct current link circuits of these systems are coupled, with two independent line paths connected to a battery system for compensating for voltage dips. The arrangement is designed to maintain voltage at a critical load by decoupling the power supply network in a fault state and utilizing energy stored in the battery system to compensate for voltage dips.

Furthermore, the patent describes a system comprising the aforementioned arrangement, a first network infeed, and a second network infeed. The first and second network infeeds are connected to first and second distributions via transformers and switches. In different states, the switches control the electrical connection between the network infeeds and distributions. Additionally, the patent details the use of measured values for phase matching before a switch is activated, ensuring efficient operation of the system. The patent also highlights the use of medium-voltage distributions and back-to-back links for electrical connections within the system, enhancing its overall functionality and reliability.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.