Hybrid virtual impedance‐based control strategy for DFIG in hybrid wind farm to disperse negative sequence current during network unbalance
Sign Up to like & getrecommendations! Published in 2020 at "Iet Renewable Power Generation"
DOI: 10.1049/iet-rpg.2019.1277
Abstract: When a hybrid wind farm based on doubly fed induction generator (DFIG) and fixed speed induction generator (FSIG) is connected to an unbalanced network, most of the negative sequence current caused by the unbalanced grid… read more here.
Keywords: wind farm; sequence current; hybrid wind; negative sequence ... See more keywords
Hybrid‐Frequency Power Loop to Eliminate Negative‐Sequence Current for Star‐Connected Cascaded H‐Bridge STATCOM
Sign Up to like & getrecommendations! Published in 2025 at "IET Power Electronics"
DOI: 10.1049/pel2.70060
Abstract: Since the power grid frequently experiences asymmetric operation caused by the unbalanced power load, the current compensation for the negative‐sequence component is typically required to control the star‐connected cascaded H‐bridge STATCOM. However, the compensation range… read more here.
Keywords: frequency power; sequence current; power; negative sequence ... See more keywords
Fault section identification using zero-sequence current carrier signaling in ungrounded power distribution systems
Sign Up to like & getrecommendations! Published in 2025 at "AIP Advances"
DOI: 10.1063/5.0295761
Abstract: In isolated-neutral distribution networks, single-phase-to-earth faults generate extremely weak fault currents with complex spatial distributions, rendering conventional manual patrols inefficient and expensive. This paper derives closed-form expressions for the magnitude and phase of zero-sequence currents… read more here.
Keywords: zero sequence; current carrier; sequence; sequence current ... See more keywords
A New Protection Strategy Based on Negative Sequence Current Coordinated Control on the Generator Extremity
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Access"
DOI: 10.1109/access.2020.3011519
Abstract: When the single-phase reclosing of the high-voltage circuit, there will be tremendous negative sequence current generation. The connection of inverter-type new energy sources may increase the negative sequence current of the power system. The risks… read more here.
Keywords: protection; sequence current; strategy; generator ... See more keywords
A Single-Phase-to-Ground Fault Detection Method Based on the Ratio Fluctuation Coefficient of the Zero-Sequence Current and Voltage Differential in a Distribution Network
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3238072
Abstract: Because the traditional zero-sequence overcurrent protection method is not effective in detecting single-phase-to-ground faults (SPGF) in a low-resistance grounded system (LRGS), this paper analyzes the fault characteristics of a 10-kV LRGS in detail. From the… read more here.
Keywords: detection method; sequence; voltage; zero sequence ... See more keywords
Active and Reactive Power Allocation Strategy to Maximize the Range of Negative-Sequence Current Compensation Based on Hybrid Cascaded STATCOM
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Journal of Emerging and Selected Topics in Power Electronics"
DOI: 10.1109/jestpe.2024.3367897
Abstract: Negative-sequence current compensation (NSCC) is essential to support the imbalanced grid and improve the grid power quality. In medium-/high-voltage applications, the cascaded H-bridge (CHB) static synchronous compensator (STATCOM) is advantageous due to its low voltage… read more here.
Keywords: negative sequence; voltage; sequence current; chb ... See more keywords
A New Zero-Sequence Current Suppression Control Strategy for Five-Phase Open-Winding Fault-Tolerant Fractional-Slot Concentrated Winding IPM Motor Driving System
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Industry Applications"
DOI: 10.1109/tia.2019.2894112
Abstract: In this paper, a new zero-sequence current suppression control strategy for the five-phase open-winding fault-tolerant fractional-slot concentrated-winding interior-permanent-magnet (FTFSCW-IPM) motor drive system with a common dc bus is proposed. By unequal distribution of the zero… read more here.
Keywords: sequence current; new zero; current suppression; zero sequence ... See more keywords
Current Prediction Based Zero Sequence Current Suppression Strategy for the Semicontrolled Open-Winding PMSM Generation System With a Common DC Bus
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2017.2784353
Abstract: In this paper, the model predictive current control is introduced in the semicontrolled open-winding permanent magnet synchronous motor (OW-PMSM) generation system with a common dc bus to suppress the zero-sequence current for the first time.… read more here.
Keywords: zero sequence; voltage; vector; generation system ... See more keywords
Predictive Zero-Sequence Current Control of Multiple Paralleled Power Converters
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2021.3139233
Abstract: In this work, we develop a zero-sequence model to analyze the zero-sequence current, i.e., circulating current, in multiple paralleled power converters. On this basis, we propose and verify a novel and simple solution: predictive zero-sequence… read more here.
Keywords: sequence; tex math; zero sequence; inline formula ... See more keywords
Negative-Sequence Current Compensation-Based Coordinated Control Strategy for Dual-Cage-Rotor Brushless Doubly Fed Induction Generator Under Unbalanced Grid Conditions
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2022.3186317
Abstract: In this article, we propose a negative-sequence current compensation-based coordinated control strategy for dual-cage-rotor brushless doubly fed induction generator, where the machine-side converter (MSC) and the grid-side converter (GSC) cooperate to mitigate the imbalance in… read more here.
Keywords: negative sequence; sequence current; control; control strategy ... See more keywords