海上风力发电机整流系统的设计与优化

Samith Sirimanna, P. Huynh, Anjana J. Samarakoon, Dongsu Lee, A. Banerjee, K. Haran
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摘要

现代大功率直驱风力发电机多采用永磁同步发电机(pmsg)。通常,这些pmsg与全额定有源整流器相结合,以处理并向主电网输送电力。然而,风力涡轮机的速度有限的特性创造了一个机会,以减少所需的主动整流的数量,这反过来又会降低驱动器的成本,提高系统的可靠性。本文介绍了一种与发电机整流系统耦合的直驱式永磁同步电机的设计与优化过程。为了使混合结构成为可能,设计了一个多端口发电机,其中包含多个二极管整流器和单个有源整流器。本文以两种不同的实现方法描述了在该体系结构下的10mw发电机驱动优化过程。从系统级效率权重的角度使用最优Pareto front对这些实现进行比较。
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Design and Optimization of an Integrated Generator-Rectifier System for Offshore Wind Turbines
Many modern direct-drive wind generators at high power levels adopt permanent magnet synchronous generators (PMSGs). Typically, these PMSGs are coupled with fully rated active rectifiers to process and deliver power to the main grid. However, the limited-speed nature of a wind turbine creates an opportunity to reduce the amount of active rectification required, which in turn would reduce the cost of the drive and improve system reliability. This paper presents a design and optimization process of a direct-drive PMSG coupled to an integrated generator-rectifier system. In order to make the hybrid architecture possible, a multi-port generator is designed with multiple diode rectifiers and a single active rectifier. This paper describes a process for a 10 MW generator-drive optimization under the proposed architecture with two different implementation methods. These implementations are compared using optimal Pareto front from a system-level efficiency-weight perspective.
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