Schweitzer Engineering Laboratories, Inc.

Benjamin S Day

David James Dolezilek

Ryan Bradetich

Jerry J Bennett

Timothy P Tibbals

Bogdan Zdzislaw Kasztenny

Shankar V Achanta

Dennis Gammel

Christopher Ewing

Tony J Lee

Jason A Dearien

Robert E Morris

Lisa Gayle Nelms

Andrew A Miller

Mark J Bosold

Thomas L Ristine

David M Nieuwsma

Ronald L Baiar

Edward L Evans

Systems and methods are presented for managing communication between devices in an electric power generation and delivery system. In certain embodiments, a method for managing communication messages performed by a network device included in an electric power generation and delivery system may include receiving a message including an identifier and data state information via a communications interface. A determination may be made that that the message represents a data state change associated with the identifier. The message may be stored in a message buffer associated with the identifier. Finally, the stored message may be transmitted from the message buffer to an intelligent electronic device.

Systems and methods for communicating data state change information between devices in an electrical power system

Disclosed herein are various systems and methods that may improve the transmission of data over low-bandwidth communication channels in an electric power delivery system. Devices communicating across a low-bandwidth communication channel may implement several approaches, according to various embodiments disclosed herein, to reduce the data transmitted across the low-bandwidth communication channel and to prioritize the transmission of time-sensitive and/or more important information with respect to other data. Various embodiments disclosed herein may inspect packets to be transmitted across a low-bandwidth communication channel in order to identify high priority data. High priority data may be time-sensitive information, and accordingly, transmission of such data may be prioritized over other data in order to reduce transmission latency of the higher priority data.

Transmission of data over a low-bandwidth communication channel

Systems and methods are presented for exchanging messages between devices in an electrical power generation and delivery system. In certain embodiments, a method for exchanging messages between devices may include transmitting messages included in a message stream that includes multiple redundant copies of the messages. An indication may be received that at least one message of the message stream was received by an intended receiving device. Transmission of further redundant copies of the message included in the message stream may be determined based on receipt of the indication.

Exchange of messages between devices in an electrical power system

Provided is a system and method of configuring IEDs to facilitate standardized communication messages among a plurality of IEDs within a power system network based on the IEC 61850 standard. A description file is described for an intelligent electronic device configured in accordance with the IEC-61850 standard. The description file includes a section which indicates which GOOSE message the intelligent electronic device should receive. In yet another embodiment, the description file includes a section which is capable of linking to logic functions of the intelligent electronic device for performing programmable data binding or dynamic data binding. A configuration tool is further provided for editing and creating such description files. A method for selectively receiving messages from an intelligent electronic device configured in accordance with the IEC-61850 standard is also described herein, along with a method for optimizing file space and improving execution speed of an intelligent electronic device configured in accordance with the IEC-61850 standard.

Method of configuring intelligent electronic devices to facilitate standardized communication messages among a plurality of IEDS within a network

A system and method for optimizing the handling of data on a priority basis within an intelligent electronic device is disclosed. A FIFO receives messages and the messages are each associated with a subscription identifier. The messages are then routed to and stored in buffers, each associated with a subscription identifier.

Intelligent electronic device with segregated real-time ethernet

Growing community of inventors

Pullman, WA, United States of America

Benjamin S Day