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Six-phase drive-based integrated onboard battery charger for electric vehicles considering zero-sequence circulating current elimination
The concept of the integrated onboard battery charger (IOBC) provides electric vehicles (EVs) with access to the integration of the drivetrain and...
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Research on Efficiency Optimization of Open Winding Permanent Magnet Synchronous Generator Considering Zero Sequence Current Suppression
In response to the problem of large zero sequence current and high losses in the common DC bus type open winding permanent magnet synchronous...
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Operational constraints of zero-sequence current feeding in bearingless PM synchronous machines
For magnetically levitated drives with a 3-phase stator winding, one degree of freedom in the rotor motion can be controlled through a zero-sequence...
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Determination of Zero-Sequence Resistances of Armored Power Cables Using Mathematical Modeling of Electromagnetic Processes
AbstractIn electric-power systems, the frequent occurrence of emergency modes requires the proper organization of protective equipment against...
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Unplanned islanding detection of renewable energy sources using sequence impedance with zero NDZ
Unintentional islanding, defined as the inadvertent separation of distributed generators from the main grid, is a significant issue for wind power...
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Drying Induction Motor Windings with Zero-Sequence Current
AbstractA brief analysis of the main techniques of drying electric machine winding in an agricultural production environment is performed. An...
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Bearingless PM-synchronous machine with axial active magnetic bearing fed by zero-sequence current
A novel inverter supply for bearingless PM-synchronous motors with magnetic suspension allows the reduction of the number of power electronic...
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Proportional Integral Resonant and Proportional Derivative Controllers Applied to Zero Sequence Harmonic Compensation in Four-Wire Microgeneration Systems
This paper proposes a combined control strategy, using proportional integral resonant and proportional derivative (PIR-PD) controllers applied in the...
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Determination of Positive-, Negative-, and Zero-Sequence Impedances for Power Cables Using Mathematical Modeling of Electromagnetic Processes
AbstractThe positive-, negative-, and zero-sequence impedances of power cables are used in the calculation of short-circuit currents in electrical...
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Fast Neutral-Point Balance and Zero-Sequence Circulation Suppression for a T-Type Three-Level Inverter Parallel System
The parallel connection of T-type three-level inverter is the key way to realize the large capacity of equipment. However, apart from the inherent...
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Research on Setting Calculation of Zero Sequence Current Inverse Time Limit Protection Based on Intelligent Control Grid
In the line protection, the main protection is the grounding fault protection, the grounding distance protection and the zero sequence protection....
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Fault Detection in Series Compensated Lines in the Presence of Power Swings Using Sum of Negative and Zero-Sequence Voltages
The distance relays misinterpret power swings as fault like situation and produce undesirable trip** signals. So, the action of these relays is...
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A zero static power consumption bi-stable RF MEMS switch based on inertial generated timing sequence method
This paper reports on a novel in-plane and electrostatically actuated bi-stable radio frequency (RF) microelectromechanical systems (MEMS) switch. A...
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Current Park’s Vector Pattern Technique for Diagnosis of Broken Rotor Bars Fault in Saturated Induction Motor
The squirrel cage induction motor is considered to be one of the most important types of motors used in industries. An unexpected failure can lead to...
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Three-Terminal Transmission Line Protection By Considering Effect of Infeed Current
The intermediate connection between load and generation unit is cost-effective as it does not require an extra substation and associated equipment....
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Research on grid-connected harmonic current suppression of three-phase four-wire energy storage inverters
When a three-phase four-wire grid-connected energy storage inverter is connected to unbalanced or single-phase loads, a large grid-connected harmonic...
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Space-Vector-Based Hybrid PWM for Zero-Sequence-Circulating-Current RMS and Common Mode Voltage Reduction in Two Parallel Interleaved Two-Level Converters
This paper aims at reducing the root mean square (RMS) values of the zero-sequence circulating current (ZSCC). The analysis reveals that the ZSCC is...
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Comparative analysis of CBPWM methods for two-phase three-leg inverters using zero sequence concept
This paper proposes carrier-based PWM (CBPWM) methods that apply a zero sequence concept in a two-phase three-leg inverter. The total harmonic...
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Direct decoupling current demodulation algorithm-based improved high-frequency rotating voltage injection method
In the permanent magnet synchronous motor (PMSM) high-frequency (HF) rotating voltage injection method, a current demodulation process is usually...
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Current Transformer Polarity Judgment Based on Line Parameter Fitting with Closing Transient Current
In order to solve the problem of current transformer (CT) reverse connection in power system, this paper proposes a method to judge CT polarity by...