文件格式：word
文件大小：1.41MB
适用专业：电机与电器
适用年级：硕士
下载次数：15 次
我要下载：点击联系下载论文编号：196329
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上海交通大学硕士学位论文 MW级直驱永磁同步风力发电机设计，93页，33422字
摘 要
第一章 绪论
直驱永磁同步风力发电机去掉了风力发电系统中常见的齿轮箱，
让风力机直接拖动电机转子运转在低速状态，这就没有了齿轮箱所带
来的噪声、故障率高和维护成本大等问题，提高了运行可靠性。它不
同于电励磁的凸极同步发电机，而是采用高磁能积的永磁材料作为磁
极，就省去了励磁绕组产生的损耗，使得电机的结构变得简单，效率
也随之提高。
直驱永磁同步风力发电机运行转速低，一般定子外径都比较大。
为了电机的运输方便和良好的冷却效果，本文选择内转子永磁同步发
电机作为设计类型。首先提出了电机设计的目标，即在满足电机设计
要求的基础上提高运行的可靠性和降低成本。然后根据等效磁路法编
制了电磁计算程序，据此进行了电机的初始设计。然后使用有限元的
方法分析了电机在各种运行状态下的性能，最后设计了电机的通风系
统并进行了通风计算。
关键词：风力发电，永磁同步发电机，直接驱动，内转子，等效磁路
法，有限元分析，通风冷却
第一章 绪论
SYNCHRONOUS GENERATORS FOR WIND TURBINES
ABSTRACT
Without the typical gearbox in wind-generating system and the
disadvantages caused by gearbox, the PMSG (permanent magnetic
Synchronous generator) is directly driven by the wind turbine at low speed,
which makes the operation of the generator more liable. PMSG is different
with salient pole Synchronous generator and its poles are made of the rare
earth material with high BH product, which avoids the excitation losses,
makes the generator structure simpler with high efficiency.
Direct-driven PMSG works at low speed and its size is generally big.
In this paper, the inner-rotor structure is selected for the convenient
transportation and good cooling. Firstly the design goal is proposed and it
is to improve the generator liability and lower the cost on the precondition
that match with the basic generator parameter requirements. Then a
program is developed on the theory of EMCM (equivalent magnetic circuit
method) and it is used in the pre-design of the PMSG. Thirdly generator
characterizes are analyzed on different working condition with FEA (finite
element analyze). Finally, the air-cooling system is designed and air rate is
calculated.
Keywords: wind generation, PMSG, direct-driven, inner-rotor, EMCM,
FEA, air-cooling
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- 硕士论文-MW级直驱永磁同步风力发电机设计
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