US 11,870,262 B2
Control architectures for power distribution networks with distributed energy resources
Alexander Brissette, Raleigh, NC (US); Joseph A. Carr, Raleigh, NC (US); and Zhenyuan Wang, Apex, NC (US)
Assigned to Hitachi Energy Ltd, Zürich (CH)
Appl. No. 17/425,136
Filed by Hitachi Energy Ltd, Zürich (CH)
PCT Filed Feb. 6, 2020, PCT No. PCT/US2020/016981
§ 371(c)(1), (2) Date Jul. 22, 2021,
PCT Pub. No. WO2020/167575, PCT Pub. Date Aug. 20, 2020.
Application 17/425,136 is a continuation of application No. 16/274,314, filed on Feb. 13, 2019, granted, now 10,903,652.
Prior Publication US 2022/0115870 A1, Apr. 14, 2022
Int. Cl. H02J 3/18 (2006.01); G05B 17/02 (2006.01); G06Q 30/0283 (2023.01); G06Q 50/06 (2012.01)
CPC H02J 3/18 (2013.01) [G05B 17/02 (2013.01); G06Q 30/0283 (2013.01); G06Q 50/06 (2013.01); H02J 2203/20 (2020.01)] 22 Claims
OG exemplary drawing
 
1. A method for controlling operation of an electrical power network including a hierarchy of control layers, the method comprising:
providing a first layer controller at a first layer, the first layer controller being configured to couple the electrical power network to a higher layer electrical power transmission grid;
providing second layer controllers at a second layer;
providing third layer controllers at a third layer, each of the third layer controllers being configured to control at least one third layer entity,
the first layer controller and the second layer controllers are configured to bi-directionally communicate which each other, and the second layer controllers and the third layer controllers are configured to bi-directionally communicate which each other, and
each of the second layer controllers are configured to control a respective subnetwork comprising at least one of the third layer controllers and the respective at least one third layer entity;
determining a service control variable for controlling operation of the electrical power network, the determining comprising:
(a) determining and transmitting to the first layer controller by the second layer controllers aggregate energy service forecasts for their respective subnetworks determined based upon third layer entity energy service forecasts provided by the respective at least one third layer controller in each subnetwork,
(b) determining and transmitting to each of the second layer controllers by the first layer controller respective second layer controller-specific energy service forecasts determined in response to the aggregate energy service forecasts and a power flow optimization for the electrical power network, and
(c) determining and transmitting to the respective at least one third layer controller by the second layer controllers respective third layer controller-specific energy service forecasts and energy service requests determined in response to the respective second layer controller-specific energy service forecasts; and
in response to transmission of the third layer controller-specific energy service forecasts and energy service requests, receiving at the second layer at least a portion of the energy services requested by the third layer controllers and receiving at the first layer at least a portion of the energy services requested by the second layer controllers.