Start with the grid problem, then find the claim. A conventional grid gets its voltage and frequency reference from large spinning generators; solar and battery inverters traditionally follow that reference. But as those generators retire, something has to form the reference instead — and do it even from a dead start, when there is no grid to sync to. That capability is the binding question behind grid-forming inverters.
Dynapower's grant US10153688B2, "Power system and method of starting multiple power converters in grid forming mode" (issued December 11, 2018; inventor Apurva Somani), addresses the hard version of it: not one inverter forming a grid, but multiple converters coming up together in grid-forming mode without fighting each other for control of voltage and frequency. The CPC tags — H02J 3/381 (arrangements for supplying power from renewable sources to a network) and H02J 13/0006 (network supervision) — place it squarely in grid-integration control.
The grid-forming claim is what enables the interconnection fix everyone talks about. When critics say the grid "can't run on renewables" because inverters can't provide grid stability, the technical rebuttal is precisely this class of method: converters that establish the reference rather than chase it. The patent is one concrete instance of how you coordinate several of them at startup — which is the realistic case, because no real installation is a single inverter.
Map it to deployment and the stakes are clear. A solar-plus-storage site that can black-start and form a microgrid during an outage is worth more than one that simply trips offline when the grid fails. The control method in this grant is what separates the two. That is the through-line from a 2018 patent claim to a 2026 interconnection-queue conversation: the IP describes the behavior that regulators and utilities are now demanding inverter-based resources provide.
The honest limit: a method patent describes how to do something, not how well it performs at scale, and grid-forming control at high penetration remains an active engineering frontier with real stability questions. But the claim is not vaporware — it is a documented method for the exact maneuver (multiple converters forming a grid from start) that the energy transition has turned from a curiosity into a requirement.