Diagnosis of single‐phase open‐line fault in three‐phase PWM rectifier with LCL filter

“…Note that their references are given by the power system operators to satisfy the practical transmission of electrical power or maintain power system stability through the VSC-MTDC systems. Finally, the obtained control inputs are modulated by the PWM technique [21].…”

Section: Remarkmentioning

confidence: 99%

Design and implementation of perturbation observer‐based robust passivity‐based control for VSC‐MTDC systems considering offshore wind power integration

Sang¹,

Yang

Yao

et al. 2018

IET Generation, Transmission & Distribution

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“…NF is a filter that can remove only desired harmonic components. NF has been studied for controlling ripple component caused by second order harmonic component in various types of topology [17][18][19][20][21][22][23]. Figure 8 shows an equivalent circuit, block diagram and transfer function of an NF.…”

Section: Conventional Filtermentioning

confidence: 99%

An Enhanced Control Scheme Based on New Adaptive Filters for Cascaded NPC/H-Bridge System

et al. 2018

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This paper studies the voltage fluctuation of dc-link generated in a 13-level cascaded neutral point clamped (NPC)/h-bridge (CNHB) with single-phase active front end (AFE) at the input side of each cell. The voltage fluctuation may deteriorate the power factor (PF) and current harmonics in the system. In this paper, new adaptive filters are proposed to overcome the problem. The center frequency of the proposed filters can be automatically varied, which allows to eliminate the specific harmonics in the dc-link well rather than the conventional one. Therefore, it can reduce the fluctuation of dc-link and maintain high PF and low current harmonic distortion without additional circuits externally or the current harmonics injection technique. As a result, capacitance for the dc-link can be optimally designed, and even cost and volume of the system can be reduced. This paper analyzes reasons of increasing voltage fluctuation theoretically and the conventional filter and proposed two types of adaptive filters are compared. In addition, the optimal design method of the dc-link capacitor necessarily used in NPC/h-bridge is presented. To verify the principle and feasibility of the proposed control method, a simulation and experiment are implemented with the CNHB system.

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Diagnosis of single‐phase open‐line fault in three‐phase PWM rectifier with LCL filter

Cited by 11 publications

References 26 publications

PCSMC design of permanent magnetic synchronous generator for maximum power point tracking

PCSMC design of permanent magnetic synchronous generator for maximum power point tracking

Design and implementation of perturbation observer‐based robust passivity‐based control for VSC‐MTDC systems considering offshore wind power integration

An Enhanced Control Scheme Based on New Adaptive Filters for Cascaded NPC/H-Bridge System

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