Abstract
With the rapid development and widespread applications of power electronic converters, strong fault-tolerant capability of power electronic converters is required since they play important roles in power systems. In this paper, a review of one of the most promising fault-tolerant topologies for semiconductor open-circuit fault, called four-switch three-phase(FSTP) topology, is presented in terms of modeling analysis, modulation techniques, and control strategies. The configuration of FSTP voltage source converter (VSC) is illustrated. To minimize the negative effects caused by the innate drawbacks of this fault-tolerant converter topology, considerable research has been carried out regarding modulation techniques and control strategies. The modulation principle for FSTP topology is explained in detail, since the performance of FSTP VSCs relies on it. This paper aims to illustrate current research progress on this fault-tolerant FSTP VSC topology.
Highlights
Power electronic converters have been widely used in different industrial applications such as wind turbine, solar panel, HVDC power transmission, electric vehicles(EVs), fuel cells and batteries[1,2,3,4,5,6]
A review of FSTP voltage source converter (VSC) and their applications for fault scenarios is presented in this paper
The configuration of FSTP topology is introduced when it is applied for three-phase rectifiers, inverters, back-to-back converters and dual-bridge inverter (DBI)
Summary
Power electronic converters have been widely used in different industrial applications such as wind turbine, solar panel, HVDC power transmission, electric vehicles(EVs), fuel cells and batteries[1,2,3,4,5,6]. As the power electronic devices such as semiconductor switches are prone to fail, switch-level faults are commonly observed. A review of FSTP VSCs is to be conducted regarding modeling analysis, modulation techniques and control strategies. For FSTP VSCs, the modulation principle becomes different since two power switches on one of the three bridge arms are not included, which means the PWM signals are used to control only four switches instead of six. In this case, there are only four switching states, instead of eight for SSTP VSCs, and no zero vector is directly available.
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