eLSE

enhanced Linear State Estimator

eLSE is a software for obtaining the best estimate of the real time state of the power system utilizing only synchrophasor data. It provides a linear solution of the state estimation problem with synchrophasor measurements. Compared to the traditional state estimator, eLSE always solves, and is much faster and highly accurate.

Provide the real time state of the system

eLSE calculates complex bus voltages at each bus using PMU measurements.

Bad Data Detection and Conditioning

eLSE filters out bad data and replaces it with good value.

Extend the observability

eLSE extends the observability to nearby substations by calculating bus voltages and phase angles using PMU measurements.

Closing Lines using Phase angles

As eLSE extends observability and calculates voltages and phase angles at nearby substations, the phase angle information can be used to check the angle limits and reclose lines after line trip events.

Equipment Health Monitoring

Continuous bad measurement may indicate malfunction or health issue of particular equipment at substation. If the measurements from equipment are identified as bad data continuously by eLSE then eLSE can send an early warning to operators.

Backup for EMS

eLSE can serve as a backup for the EMS when the traditional state estimation fails to converge.

Key Features

Real Time System Model and Input to Downstream Applications
eLSE can provide real time system model and serves as an input to the downstream applications like contingency analysis, remedial action scheme, AGC/AVC, Energy Markets, Oscillation Detection, Dynamic security /Voltage stability Assessment

Capability to Model Power System Equipment
eLSE has the capability to model series capacitors, shunt capacitors, reactors, bypass breaker, split bus

Interface for accepting Breaker Status
eLSE has an interface to accept Breaker status using Inter-Control Center Communications Protocol (ICCP). It can also obtain breaker status information from PMU digitals

Contact EPG

251 South Lake Avenue, Suite 300,
Pasadena, CA 91101

1-626-685-2015

1-626-685-2039

contact@electricpowergroup.com

Quick Links

About EPG

Electric Power Group, LLC (EPG) has been pioneering the development and deployment of synchro-phasor technologies since 2000. Our principals have extensive experience in running and managing utility grids, investigating root causes of major blackouts (WECC 1996, EI 2003), and leveraging this deep domain knowledge to develop industry leading synchrophasor technology applications for wide area real time monitoring, visualization and situational awareness.

The EPG team has extensive hands-on experience with synchrophasor standards, networks, system architecture, deployments and performance analysis through work at EPG for leading ISO's and utilities including PJM, NYISO, ERCOT, CAISO, MISO, BPA, TVA, SCE, AEP, LADWP, SRP, Duke, Dominion, NYPA and other companies.

Scroll