US 11,982,979 B2
Ripple-type control of networked physical systems
Guido Cavraro, Arvada, CO (US); Andrey Bernstein, Golden, CO (US); and Manish Kumar Singh, Minneapolis, MN (US)
Assigned to Alliance for Sustainable Energy, LLC, Golden, CO (US)
Filed by Alliance for Sustainable Energy, LLC, Golden, CO (US)
Filed on Oct. 14, 2021, as Appl. No. 17/501,743.
Claims priority of provisional application 63/091,525, filed on Oct. 14, 2020.
Prior Publication US 2022/0113685 A1, Apr. 14, 2022
Int. Cl. G05B 13/02 (2006.01); G05B 9/02 (2006.01); G06Q 50/06 (2012.01)
CPC G05B 13/024 (2013.01) [G05B 9/02 (2013.01); G06Q 50/06 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A device comprising:
at least one processor configured to iteratively:
determine, based on a measurement of an output voltage at a first controllable device in a power system and a minimum output voltage value for the first controllable device, an output voltage violation value for the first controllable device;
receive an assistance requisition value from a second device in the power system, wherein the second device is communicatively coupled to the first controllable device;
determine, based on a present input reactive power value for the first controllable device, the output voltage violation value, and the assistance requisition value from the second device, a target input reactive power value for the first controllable device; and
modify operation of the first controllable device based on the target input reactive power value and a maximum input reactive power value for the first controllable device,
wherein determining the target input reactive power value comprises determining custom character(t+1)=un(t)+η1,nfn(t)+η2,nAnλ(t), wherein:
n denotes the first controllable device;
custom character(t+1) denotes the target input reactive power value for the first controllable device;
un(t) denotes the present input reactive power value for the first controllable device;
η1,n(t) denotes a first positive scaling factor for the first controllable device;
fn(t) denotes the output voltage violation value for the first controllable device;
η2,n denotes a second positive scaling factor for the first controllable device;
An denotes an adjacency matrix for the first controllable device, the adjacency matrix indicating devices in the power system that are communicatively coupled to the first controllable device; and
λ(t) denotes a vector of assistance requisition values, including the assistance requisition value that corresponds to the second device.