Vaibhav D Donde

8121740, Feb 21, 2012

Dec 18, 2008

12/338302

Fang Yang - Raleigh NC, US
James Stoupis - Durham NC, US
Vaibhav Donde - Raleigh NC, US

ABB Research Ltd. - Zurich

G05D 3/12
G05D 5/00
G05D 9/00
G05D 11/00
G05D 17/00
G05D 23/00
G11C 29/00

700292, 700283, 700294, 700297, 714764

A soft PLC technology based computer-implemented method includes updating a system configuration incidence matrix for an electric power distribution system based on both a depth-first search of a connectivity matrix for the electric power distribution system and information about the electric power distribution system, wherein the information includes at least status information about one or more switches of the electric power distribution system. The method further includes detecting a fault in the system based on the incidence matrix. The method further includes generating isolation control logic based on the incidence matrix and isolating the fault based on isolation control logic. The method further includes generating restoration control logic based on a breadth-first search of the incidence matrix and restoring the system based on the restoration control logic.

8390302, Mar 5, 2013

Sep 4, 2009

12/554614

Mirrasoul J. Mousavi - Cary NC, US
John J. McGowan - Allentown PA, US
James Stoupis - Durham NC, US
Vaibhav D. Donde - Raleigh NC, US

ABB Research Ltd - Zurich

G01R 31/02
H04B 3/46

324539

A method and a protective device operable to perform the method are provided, wherein the method is for detecting and analyzing faults in a first cable and one or more other cables, which convey power in a three phase feeder system. Current magnitude in the first cable is compared to a threshold level. If the current magnitude exceeds the threshold level, the duration of the condition is measured. If the duration falls within a predetermined duration range, a predetermined time interval is allowed to pass and then a determination is made whether a fault is detected in the one or more other cables. If a fault is not detected in the one or more other cables, then a determination is made that a single phase fault has occurred in the feeder system.

20100094573, Apr 15, 2010

Oct 14, 2008

12/250630

Fang Yang - Raleigh NC, US
James Stoupis - Durham NC, US
Mohamed Maharsi - Garner NC, US
Zhenyuan Wang - Cary NC, US
Vaibhav D. Donde - Raleigh NC, US

ABB RESEARCH LTD. - Zurich

G01R 22/00

702 61

A method of forecasting loads on a distribution network is disclosed. The method employs load profiles in combination with short-term load estimations to forecast expected loads on a distribution network. The predicted loads may then be used by power restoration controllers when performing back-feed capacity checks.

20110004355, Jan 6, 2011

Dec 23, 2009

12/645506

Zhenyuan Wang - Cary NC, US
James Stoupis - Durham NC, US
Vaibhav Donde - Raleigh NC, US
Wenping Li - Cary NC, US
William Peterson - Cary NC, US

ABB Research Ltd. - Zurich

G06F 1/26

700286

A power outage restoration system manages a power network including a plurality of switching devices. The power outage restoration system includes an outage management system having a network model of said power network. A plurality of local restoration controllers are in communication with the outage management system and each said local restoration controller includes a trimmed network model correlating to a respective area of responsibility.

20110029148, Feb 3, 2011

Dec 10, 2008

12/747155

Fang Yang - Raleigh NC, US
Vaibhav Donde - Raleigh NC, US
Zhenyuan Wang - Cary NC, US
James Stoupis - Durham NC, US
David Lubkeman - Cary NC, US

G06F 1/26

700297

A method and system restores power in a power distribution network. The network includes a plurality of power sources, a plurality of loading zones, a plurality of switching devices interconnected between the plurality of power sources and the plurality of loading zones, and an intelligent electronic device associated with each of the plurality of switching devices to control the switching devices. A base network state is defined and a power restoration logic is created for the base network state. A simulation is run for the power restoration logic and then the power restoration logic is transmitted to a power restoration controller which thereafter monitors and controls the intelligent electronic devices.

20120232713, Sep 13, 2012

Dec 2, 2010

13/512475

Zhenyuan Wang - Cary NC, US
Vaibhav D. Donde - Cary NC, US
James Stoupis - Durham NC, US
Wenping Li - Fulshear TX, US
William Peterson - Fulshear TX, US

ABB RESEARCH LTD. - Zurich

G06F 1/30

700295

The method of determining back-feed paths is capable of efficiently solving multi-layer restoration problems by minimizing a fitness function using an iterative genetic algorithm. The method optimizes back-feeding of out-of-service areas by minimizing power loss, switching, unserved loads and voltage/current violations. The efficiency of the algorithm is further increased through the use of a reactive Tabu search to prevent duplicate candidate systems.

20130226538, Aug 29, 2013

Jun 11, 2011

13/700737

Vaibhav D Donde - Cary NC, US
Ernst Scholtz - Houston TX, US
Mats Larsson - Baden-Dattwil, CH
Yan Zhang - Baden, CH
Mani Subramanian - Sugar Land TX, US
John Finney - Zurich, CH

ABB RESEARCH LTD. - Zurich

G06F 17/50

703 2

Methods for detecting network model data errors are disclosed. In some examples, methods for detecting network model data errors may include splitting a network model into a first plurality of portions, executing an algorithm on each of the portions, identifying a portion for which the algorithm is determined to be non-converged, splitting the identified portion into a second plurality of portions, repeating the executing, identifying and splitting the identified portion until a resulting identified portion is smaller than a predefined threshold, and examining the resulting identified portion to identify plausible data errors therein. In some examples, examining the resulting identified portion to identify plausible data errors therein may include executing a modified algorithm, which may include an augmented measurement set, on the identified portion.

20130282188, Oct 24, 2013

Apr 18, 2012

13/449997

Vaibhav Deepak Donde - Cary NC, US
Jean-Charles Albert Toumier - Saint Genis Pouilly, FR

ABB Research Ltd. - Zurich

G05D 16/20

700286

Among other things, one or more techniques and/or systems are provided for leasing electrical network computational services to one or more network control centers. A power grid may comprise one or more substations. Network control centers disposed within the power grid may be configured to manage the substations within the power grid. A remote centralized network control center may be configured to lease electrical network computational services to the network control centers (e.g., which may mitigate costs associated with including computational hardware and/or software within respective network control centers for performing such electrical network computational services). In this way, substation data received from a network control center may be processed by the remote centralized network control center according to a level of service subscribed to by the network control center. Computational results may be provided back to the network control center (e.g., in real-time).