Other

Electric Power Research Institute Incorporated

Basic Resources, Inc.

William Mack Grady

Edward J Powers

Antony Cozart Parsons

John Carol Soward

Surya Santoso

Arshad Mansoor

Matthew Robert Rylander

Frederic Gorgette

This invention relates to a hybrid passive agent system impedance monitoring station and method. The method of monitoring impedance of an electrical system includes the steps of providing an impedance monitoring station adapted to test and monitor system impedance, solving for system impedance in a time domain, solving for system impedance in a frequency domain, and determining a time domain driving point impedance and a frequency domain driving point impedance to identify the impedance of the system.

Passive agent system impedance monitoring station and method

A disturbance locating system includes a voltage transducer, a current transducer and disturbance energy determination circuitry. The system may also include disturbance power determination circuitry. The voltage transducer couples to an output of a voltage transformer, the output of the voltage transformer representative of a voltage on a line. The current transducer couples to an output of a current transformer, the output of the current transformer representative of the current flowing through the line, the output having a forward reference direction and a behind reference direction. The disturbance energy determination circuitry couples to the voltage transducer and the current transducer. Based upon the inputs received, the disturbance energy determination circuitry determines disturbance energy flowing in the line and estimates a direction of disturbance energy flow with respect to the system as either in front of or behind of the disturbance locating system.

System and method for locating a disturbance in a power system based upon disturbance power and energy

A disturbance locating system deployed within a power grid to estimate a location of a disturbance in a power system includes a voltage transducer, a current transducer and disturbance energy determination circuitry. The system may also include disturbance power determination circuitry. The voltage transducer couples to an output of a voltage transformer, the output of the voltage transformer representative of a voltage on a line within the power grid. The current transducer couples to an output of a current transformer, the output of the current transformer representative of the current flowing through the line, the output having a forward reference direction and a behind reference direction. The voltage and current transformers may be hard wired to the line. The disturbance energy determination circuitry couples to the voltage transducer and the current transducer. Based upon the inputs received, the disturbance energy determination circuitry determines disturbance energy flowing in the line and estimates a direction of disturbance energy flow with respect to the system as either in front of or behind of the disturbance locating system. The disturbance energy determination circuitry may include disturbance power determination circuitry that couples to the voltage transducer and the current transducer. In such case, the disturbance power is provided to the disturbance energy determination circuitry for estimating a relative direction to the disturbance.

Growing community of inventors

Round Rock, TX, United States of America

William Mack Grady