Statistical and Numerical Robust State Estimator for Heavily Loaded Power Systems

A Simplified Nonlinear State Estimator for Power Systems

This paper presents a simplified nonlinear observer for power systems by exploring the special features of the nonlinear power system model. Rather than directly applying the existing nonlinear observer theory to the 6 order nonlinear power system model, the model is first decoupled into a 3 order nonlinear subsystem and a 3 order linear subsystem. Low order observers are designed for each subs...

Robust state estimation in power systems using pre-filtering measurement data

State estimation is the foundation of any control and decision making in power networks. The first requirement for a secure network is a precise and safe state estimator in order to make decisions based on accurate knowledge of the network status. This paper introduces a new estimator which is able to detect bad data with few calculations without need for repetitions and estimation residual cal...

High Power W-Band Heavily Loaded TEOl Gyro-TWT

A broadband 140 kW, 94 GHz amplifier has been built at UCD that operates in the low loss TEol mode (Ref. 1). Because a large axial velocity is beneficial for stability and wide bandwidth, it employs a 100 kV, 5 A beam with a modest velocity ratio of vl/vz=l. To reduce the interception of electrons by the wall, the guiding center of the beam is 1&=0.45, which is slightly inside of the TEol mode ...

Heavily Loaded Server 0.0

Robust Nonlinear State Feedback for Power Systems under Structured Uncertainty

This paper presents a robust nonlinear state feedback linearization approach for power systems with uncertainties. The uncertainties considered here are a class of bounded perturbations to the state model of power systems. The control law is applied through the excitation system of the synchronous generators connected to the power systems to enhance the stability of the system. In this paper, u...