This study presents a non‐communication based algorithm for detection of secondary arc extinction adaptive single phase auto‐reclosing transmission lines. The is on the behaviour pattern faulted voltage magnitude (VM) measured at near end line. A prediction function used to calculate present VM few milliseconds in advance its actual measurement. difference between and calculated values as criterion extinction. new method proposed analyse which does not need predefined threshold level. uses...

This paper presents a reliable and fast index to detect the instant of arc extinction for adaptive single-pole automatic reclosing (ASPAR). The proposed method is simple technique ASPAR on shunt compensated transmission lines using Hilbert–Huang Transform (HHT). HHT combination empirical mode decomposition (EMD) Hilbert transform (HT). first intrinsic function (IMF1) decomposed by EMD, which contains high frequencies faulty phase voltage, was used calculate index. HT calculates IMF spectrum...

In traditional low voltage networks, energy storage systems are mainly used by consumers to protect against short-term power outages. With the advent of microgrids and expansion distributed generation resources also, development system technology, role storages increasing. By proposed control system, battery (BESS) participates in microgrid management also plays a regulation compensating for current harmonic, unbalance, reactive due presence nonlinear loads. this paper, fuzzy logic-based is...

The occurrence of low-frequency electromechanical oscillations is a major problem in the effective operation power systems. scrutiny these provides substantial information about system stability and security. In this paper, new method introduced based on combination synchrosqueezed wavelet transform stochastic subspace identification (SSI) algorithm to investigate large-scale Then, estimated modes are used for design stabilizer flexible alternating current transmission (FACTS) device....

Geomagnetically induced currents (GICs) in the power system cause half-cycle saturation of transformers, malfunction protective relays, reactive loss, and voltage instability. A DC Flux Blocker (DFB) that can be installed series with transformers tertiary windings to neutralize magnetomotive force (mmf) due GIC is described. The device consists two circuit breakers a low high current source, which provides mmf flux blocking function. effectiveness proposed electrical investigated validated...

With the advent of microgrids (MG) and increasing use renewable energy sources (RES), conventional low voltage networks change their structure from passive to active. The inherent oscillation nature RESs, such as wind turbine units (WT), can lead adverse effects power quality system stability issues. therefore, storage systems (ESSs) becomes one feasible solution mitigate output fluctuations WT unit. In this paper, a Battery Energy Storage System (BESS) is used in order smooth based on...

This paper presents a novel approach for real-time fault location in medium voltage (MV) cables, single-phase to ground faults. The method is based on the sheath currents. By utilizing instantaneous measurements of and current at cable's sending end, voltages currents sheaths receiving end are computed. A criterion then introduced, relying calculated cable current. offers two advantages: it operates time-domain which minimizes phasor calculation error, doesn't require communication. method's...

Geomagnetically induced currents (GICs) in long high‐voltage transmission lines cause half‐cycle saturation of transformers, malfunction protective relays, reactive power loss, and voltage instability. This study describes the design for a GIC effects mitigation device (GEMD) that can be installed at system autotransformer common node connection to block flow DC flux cores autotransformers. The devices consist variable resistors, which are controlled by wide‐area method based on particle...

The loss of excitation (LOE) fault is known as one the most frequent electric generators' internal faults. Conventional methods based on impedance measurements slow down protection system and cause mal-operation during power swing. This study proposes a new approach for LOE detection in synchronous generators where changes generator armature current after are used this purpose. By applying EMD Hilbert-Transform to signal, proposed Index calculated. Based Index, can be distinguished from...

This paper proposes a novel online method to locate single-phase ground faults on medium voltage (MV) cables. The proposed exploits the relationship between cable's and current, in particular, sheaths currents. Using measured phasors of voltages currents sending end cable, at receiving are calculated. Based equality calculated criterion is estimate fault location. As two major advantages, it compatible with inverter-base generation does not rely real-time communication. testified by 960...

The online estimating of grounding resistances medium voltage cable sheaths makes it possible to monitor their zero-sequence impedance. This paper proposes a resistance estimation method for three-phase single-core cables. uses the phasors measured and currents sending end Pi-model estimate current main conductor at receiving end. Then, using cable's end, sheaths' both ends are calculated. A set 1600 transient power system simulations proves is effective. error less than 71 <tex...

Capacitive wireless power transfer (CPT) employs an electric field to transmit energy through a medium. Air is the most often used and well-understood However, CPT can also bridge other solid media even benefit from them as dielectric properties of medium govern strength capacitive coupling. The parasitic elements coupling are influenced by medium, in particular leakage resistance. In this work, analytical model proposed that quantifies resistance losses systems for media. validated both...

The power system low-frequency electromechanical oscillations examine in this paper using a maiden method that is combination of the Prony algorithm and Synchrosqueezed short-time Fourier Transform. primary purpose large scale systems control improving modes damping, therefore, estimation these are necessary two types local inter-area. formulation controller design assumed as multiobjective optimization problem intended parameters gained here by Residual Particle Swarm Optimization (PSO)...