Power Compensation-Oriented SVM-DPC Strategy for A Fault-Tolerant Back-To-Back Power Converter Based DFIM Shipboard Propulsion System

Typical application of bidirectional DC/DC power converter exists in hybrid cars. Recently, a similar approach has been applied in hybrid propelled ships as well. In this paper, a novel low power bidirectional DC/DC power converter of standard Buck/Boost topology has ben designed in order to explore possibilities of the high power design in maritime applications. In order to discover critical points of a design, thermal imaging has been investigated. The results clearly indicate that the proposed solution is more cost effective than a typical standard bidirectional DC/DC power converter. Likewise, the improvement in maneuvering of the propelled vessel system with two and more electric drives has been investigated and compared to a classical diesel, single engine propulsion system.

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Open-circuit fault-tolerant control strategy based on five-level power converter for SRM system

China Electrotechnical Society Transactions on Electrical Machines and Systems ◽

10.30941/cestems.2019.00024 ◽

2019 ◽

Vol 3 (2) ◽

pp. 178-186 ◽

Cited By ~ 1

Author(s):

Mingyao Ma ◽

Kexiang Yuan ◽

Qingqing Yang ◽

Shuying Yang

Keyword(s):

Control Strategy ◽

Fault Tolerant ◽

Fault Tolerant Control ◽

Power Converter ◽

Open Circuit ◽

Srm System

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Fault Tolerant Systems

Reliability in Power Electronics and Electrical Machines - Advances in Computer and Electrical Engineering ◽

10.4018/978-1-4666-9429-3.ch011 ◽

2016 ◽

pp. 408-434

Keyword(s):

Fault Tolerance ◽

Power Supply ◽

Fault Tolerant ◽

Power Converter ◽

Functional Requirements ◽

Functional Capabilities ◽

Fault Tolerant Systems ◽

Free Environment ◽

Supply Systems ◽

Redundant Systems

Another alternative derating, which was described in the previous chapter, is application of fault tolerant structures for the power converter. Fault tolerance is the property that enables a system to continue operating properly in the event of a failure of (or one or more faults within) some of its components. Fault tolerant systems are systems that can be operating after fault occurrence with no degraded performance in their basic functional requirements. This is the main difference between fault tolerant systems and derated systems. In this chapter, some methods for fault tolerance in electric power converters are presented. Fault tolerance is almost the only method for achieving a desired reliability in a converter that operates with non-zero fault possibility. There are two main approaches for this aim: re-configuration of the faulty system and using redundant systems. Redundancy is the provision of functional capabilities that would be unnecessary in a fault-free environment. Various types of redundant systems as passive and active redundancy are described and their application in power supply systems is presented. A new approach for a reliable and fault tolerant power supply is proposed and justified with experimental results. The concept of fault tolerance in electrical machines is presented.

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