US 12,316,124 B2
Automatic detection of distributed energy resources system parameters
Jorge Elizondo Martinez, Sonoma, CA (US); Albert Tak Chun Chan, Castro Valley, CA (US); and Francisco A. Morocz Bazzani, Somerville, MA (US)
Assigned to Heila Technologies, Inc., Somerville, MA (US)
Filed by Heila Technologies, Inc., Somerville, MA (US)
Filed on Aug. 9, 2022, as Appl. No. 17/884,183.
Application 17/884,183 is a continuation of application No. 17/131,227, filed on Dec. 22, 2020, granted, now 11,451,088.
Application 17/131,227 is a continuation of application No. 16/054,967, filed on Aug. 3, 2018, granted, now 10,892,638, issued on Jan. 12, 2021.
Claims priority of provisional application 62/540,982, filed on Aug. 3, 2017.
Prior Publication US 2022/0385075 A1, Dec. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H02J 3/38 (2006.01); G05B 13/02 (2006.01); G05B 15/02 (2006.01); G06Q 50/06 (2024.01); H02J 13/00 (2006.01)
CPC H02J 3/381 (2013.01) [G05B 13/022 (2013.01); G05B 15/02 (2013.01); H02J 13/00 (2013.01); H02J 13/00009 (2020.01); H02J 13/00028 (2020.01); G06Q 50/06 (2013.01); H02J 2203/20 (2020.01)] 18 Claims
OG exemplary drawing
 
1. A method of estimating a physical characteristic of a network element in a distributed energy resource system having a plurality of assets electrically connected by a plurality of network elements, the method comprising:
injecting a large power or current signal from a given controllable asset into the DERs system, the large signal having a frequency of less than 1 kHz and being greater than 10% of the power rating of the controllable asset injecting the power signal;
measuring a voltage perturbation:
i) magnitude, or
ii) magnitude and phase at the given frequency,
at two nodes in the DERs system;
calculating the voltage drop across the network element at the given frequency as a result of the injected signal;
estimating a physical characteristic of the network element as a function of the calculated voltage drop and the injected signal.