Abstract: A system and method for analyzing steady-state powerflow in DC electrical networks in the presence of constant power loads and other nonlinear devices whose I-V characteristics can be modeled using algebraic functions. The networks include high power utility-size grids and microgrids, as well as vehicular, aircraft, and spacecraft power management and distribution systems. The method draws on the mathematical framework of the Holomorphic Embedded Loadflow Method (HELM), which has previously been applied in utility AC networks. The adaptation to DC systems depends on the choice of a proper embedding and a corresponding reflection condition on the embedded voltages. Additionally, the method is extended to nonlinear devices other than constant-power loads, such as photovoltaic panel sources, which are of interest for the power systems aboard spacecraft and other electric vehicles.
Type:
Grant
Filed:
June 8, 2016
Date of Patent:
February 5, 2019
Assignee:
Aplicaciones en Informática Avanzada, S.A
Abstract: A system and method for analyzing steady-state powerflow in DC electrical networks in the presence of constant power loads and other nonlinear devices whose I-V characteristics can be modeled using algebraic functions. The networks include high power utility-size grids and microgrids, as well as vehicular, aircraft, and spacecraft power management and distribution systems. The method draws on the mathematical framework of the Holomorphic Embedded Loadflow Method (HELM), which has previously been applied in utility AC networks. The adaptation to DC systems depends on the choice of a proper embedding and a corresponding reflection condition on the embedded voltages. Additionally, the method is extended to nonlinear devices other than constant-power loads, such as photovoltaic panel sources, which are of interest for the power systems aboard spacecraft and other electric vehicles.
Type:
Application
Filed:
June 8, 2016
Publication date:
January 5, 2017
Applicant:
Aplicaciones en Informatica Avanzada, S.A.
Abstract: A system and method for monitoring and managing three-phase power flows in electrical transmission and distribution networks through the use of a deterministic, non-iterative method using an holomorphic embedding and algebraic approximants for determining the power flows in the three phases of a power generating system having an electrical grid. Such method is capable of determining whether or not a physical solution to the load flow problem exists, or if the system is in a state of voltage collapse. It may be employed in either real-time or off-line analytic applications for balanced or unbalanced electric power systems, in particular for monitoring and analyzing unbalanced conditions in three-phase electrical networks and for the accurate calculation of short-circuit conditions.
Type:
Application
Filed:
June 3, 2011
Publication date:
October 20, 2011
Applicant:
Aplicaciones en Informatica Avanzada, S.A.
Abstract: A system and method for monitoring and managing electrical power transmission and distribution networks through use of a deterministic, non-iterative method using an holomorphic embedding and algebraic approximants for determining the real-time load flow in a power generating system having an electrical grid. Such method may be employed for real-time or off-line applications for electric power systems reliability assessment, and is capable of determining whether or not a physical solution to the load flow problem exists, or if the system is in a state of voltage collapse.
Type:
Grant
Filed:
April 2, 2009
Date of Patent:
July 12, 2011
Assignee:
Aplicaciones en Informatica Avanzada, S.A.
Abstract: A system and method for monitoring and managing electrical power transmission and distribution networks through use of a deterministic, non-iterative method using an holomorphic embedding and algebraic approximants for determining the real-time load flow in a power generating system having an electrical grid. Such method may be employed for real-time or off-line applications for electric power systems reliability assessment, and is capable of determining whether or not a physical solution to the load flow problem exists, or if the system is in a state of voltage collapse.
Type:
Application
Filed:
April 2, 2009
Publication date:
September 10, 2009
Applicant:
Aplicaciones en Informatica Avanzada, S.A.
Abstract: A system and method for monitoring and managing electrical power transmission and distribution networks through use of a deterministic, non-iterative method using an holomorphic embedding and algebraic approximants for determining the real-time load flow in a power generating system having an electrical grid. Such method may be employed for real-time or off-line applications for electric power systems reliability assessment, and is capable of determining whether or not a physical solution to the load flow problem exists, or if the system is in a state of voltage collapse.
Type:
Application
Filed:
December 30, 2005
Publication date:
May 25, 2006
Applicant:
Aplicaciones en Informatica Avanzada, S.A.