Time-delay is inherent to communications schemes in power systems, and a closed loop strategy the presence of latencies increases inter-area oscillations security problems tie-lines. Recently, Wide Area Measurement Systems (WAMS) have been introduced improve observability overcome slow-rate from traditional Supervisory Control Data Acquisition (SCADA). However, there need for tackling time-dela...

Accurate time synchronization is an important prerequisite for many applications. Synchronization down to submicrosecond precision, as required by distributed control in automation or network event analysis, is prevalently a domain of wired or expensive GPS-enabled systems. Existing time synchronization protocols for wireless embedded systems exhibit errors that are orders of magnitude higher. ...

Due to inherent time delays in the control system of Hybrid Active Power Filter with Injection Circuit (IHAPF) and the load harmonic currents changes rapidly and dramatically. In order to eliminate these harmonic currents, an IHAPF to be used must be able to respond quickly following variable of the harmonic currents. So, this paper proposes a PID-fuzzy control method with time-delay compensati...

If a sensor requires finite processing and communication time, then the current sensor reading actually corresponds to the states of a vehicle at some point in the past. At the sensor fusion algorithm, it is expected that large errors may accumulate over time if we simply ignore the fact that the sensor measurement is lagged. Over several decades, the Kalman filter based compensation techniques...

—In this paper, we propose and prove the scheme by stabilizing the fiber link time delay in the increase of the signal’s (RF) transmitted phase stability. Let radio frequency signals (RF) transmit between the intermediate node and a distal end to obtain the difference of time delay. The faster and smaller proportion of delay fluctuation are eliminated by the piezoelectric fiber stretchers (PZT...

We study the influence of third-order spherical aberration on the group velocity dispersion and on the propagation time delay of a plane pulse that is focused by a thin lens. Applications in refractive-diffractive propagation time delay compensation systems and in Gaussian temporal-shaped pulses are analyzed.

In general, if the maximum delay spread is longer than guard interval (GI), the system performance is significantly degraded. The conventional time-frequency interferometry (TFI) for OFDM does not consider with timevariant large delay spread channel. In this paper, we propose a novel time domain inter-symbol-interference (ISI) cancellation scheme with replica signal based inter-carrierinterfere...