Implementation of Fast Adaptive Single-Phase Reclosing Based on Measurement of Harmonic Content in the Real-Time Digital Simulator (RTDS)
نویسندگان
چکیده
This paper presents the implementation of a fast adaptive single-phase reclosing scheme based on the measurement of voltage harmonic content. The main objective of this scheme is to ensure the application of single-phase reclosing after the transient fault extinction or perform automatic blocking maneuver and three-phase tripping for permanent faults. The transmission system represented was based on an actual 500 kV Brazilian system and the tests were made with Real-Time Digital Simulator (RTDS). The protection scheme was implemented with a commercial relay and a measurement equipment, as well as in RTDS hardware. The proposed adaptive protection reduced typical dead-time and ensured successful reclosing only after arc extinction, enhancing system reliability.
منابع مشابه
One Terminal Digital Algorithm for Adaptive Single Pole Auto-Reclosing Based on Zero Sequence Voltage
This paper presents an algorithm for adaptive determination of the dead timeduring transient arcing faults and blocking automatic reclosing during permanent faults onoverhead transmission lines. The discrimination between transient and permanent faults ismade by the zero sequence voltage measured at the relay point. If the fault is recognised asan arcing one, then the third harmonic of the zero...
متن کاملA New Adaptive High Speed Distance Protection Scheme for Power Transmission Lines
This paper describes a new, high-speed protection for EHV transmission lines. The presented scheme also performs well on series compensated lines. The High speed distance protection (ZMFPDIS) function is a six zone full scheme protection with three fault loops for phase-to-phase faults and three fault loops for phase-to-earth faults for each of the independent zones, which makes the function su...
متن کاملDistance protection closed-loop testing using RTDS
This paper presents a distance protection test procedure by applying the Real-Time Digital Simulator (RTDS) of a power system. RTDS is a tool to design, develop, and test power-system protection. The RTDS enables real-time computation of electromagnetic phenomena with a calculation time step of even 50μs. The hardware allows the import and export of many signals from the simulator to an ext...
متن کاملDesing And Implementation of Adaptive Active Filters for Exact Estimation And Elimination of AC Network Distortions
In recent years, active filters have been considered and developed for elimation of harmonics in power networks. Comparing with passive, they are smaller and have better compensating characteristics and resistance to line distortions. In this paper, a novel idea based on adaptive filter theory in presented to develop an active filter to eliminate the distortions of an arbitrary signal. Using th...
متن کاملHarmonics Estimation in Power Systems using a Fast Hybrid Algorithm
In this paper a novel hybrid algorithm for harmonics estimation in power systems is proposed. The estimation of the harmonic components is a nonlinear problem due to the nonlinearity of phase of sinusoids in distorted waveforms. Most researchers implemented nonlinear methods to extract the harmonic parameters. However, nonlinear methods for amplitude estimation increase time of convergence. Hen...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2015