High‐frequency current source converter for a direct drive powertrain in a wave energy converter
High‐frequency current source converter for a direct drive powertrain in a wave energy converter
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用于波浪能转换器中直接驱动动力系统的高频电流源转换器
DOI：
10.1049/joe.2018.8061
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发表时间：
2019
影响因子：
--
通讯作者：
Volker Pickert
中科院分区：
文献类型：
--
作者：
S. McDonald;N. Baker;Volker Pickert
波浪能转换器（WEC）通常使用液压或齿轮等机械解决方案来优化从入射波浪中提取能量，然后通过高速旋转发电机将其转换为电能。这简化了电力转换系统（EPCS）的设计，并促进了弹簧、压缩空气或液压蓄能器等机械能存储的使用。因此，可以降低WEC功率的自然峰值性质，并且有可能调谐WEC的谐振频率。本文介绍了一种用于风力发电系统的集成式低速直接驱动动力输出装置（PTO）的电流源型变流器（CSC）的潜在设计。碳化硅（SiC）器件，使高开关频率与有益的减少无源元件的尺寸被认为是。如容错，保护和寄生电感的问题进行了调查，导致改进的布局建议。
Wave energy converters (WECs) generally use a mechanical solution such as hydraulics or gearing to optimise the extraction of energy from the incoming waves prior to converting it into electrical energy via a high-speed rotating generator. This simplifies the electrical power conversion system (EPCS) design and facilitates the use of mechanical energy storage such as springs, compressed air, or hydraulic accumulators. The naturally peaky nature of the WEC power can thus be reduced and there is potential to tune the resonant frequency of the WEC. The potential design of a current source converter (CSC) for an integrated low-speed direct-drive power take-off (PTO) for a WEC is described here. Silicon carbide (SiC) devices which enable high switching frequencies with a beneficial reduction in passive component dimensions are considered. Issues such as fault tolerance, protection, and parasitic inductance are investigated leading to an improved layout proposal.