A Method for Accurate Parameter Estimation of Series Compensated Transmission Lines Using Synchronized Data

Novel technique for transmission line parameters estimation using synchronised sampled data

“…Recorded data from the transmission lines are converted to digital signals using analogue‐to‐digital converters in order to be processed and used for parameter estimation. Modern intelligent electronic devices (IED) using 16 or 32 bits have a signal‐to‐noise ratio (SNR) higher than 100 dB [19]. The method is examined in the case where signals are contaminated with noise that is considered as a Gaussian noise having various SNRs.…”

“…Data measurements are prone to errors coming from the fact that the devices used in the transmission line system such as remote terminal units (RTUs), PMUs and instrument transformers may occasionally introduce error due to the discretisation of data, time synchronisation failure and saturation or incorrect calibration, respectively. Since the transmission lines parameter estimation procedure can be affected by errors resulting from those devices, many studies, like in [19–23], have taken this aspect into consideration and tried to develop algorithms whose accuracy is not reactive to errors if existing by checking their effectiveness through testing different scenarios in simulations and/or experiments. One way to get rid of the noise problem that commonly contaminates the data is to denoise the PMU measurements using wavelets prior to the calculation of the transmission line parameters as it is proposed in [24].…”

Error assessment method of electromechanical–electromagnetic hybrid simulation

“…With the development of power system and its increasing scale, the operation of power system has become more and more complicated. Its numerical validity has been the focus of the industry [1–4]. With the development of power electronic technology, high voltage direct current and FACTS devices have been added to the system, and the physical meaning of the variables varies greatly.…”

Design and implementation of the integrated experiment cabinet for micro‐transmission lines

“…With the high development of ultra‐high voltage (UHV) AC/DC power transmission and smart grid technologies, the structure of the power grids is getting much complicated [1–3]. Transmission lines are regarded as the significant components of the electric grid, monitoring and control of which influence the stability of the entire system directly [4, 5]. High penetration of sustainable energy, e.g.…”