《国际电子商情》数字版2010年3月刊 - (Page 15)

市场观察产品毛利率为18%-28%，东方电气2008年的毛利率只有11%左右。国内的叶片生产企业近几年快速增加。同时，由于在整机中所占的价值较高，风电整机企业也倾向于自己生产叶片。国内的叶片产能增长很快，超过了未来市场的需求。但轴承的供应仍然存在一定的缺口，有市场投资机会。风电机组主轴承目前几乎全部依赖进口，其他部位的轴承，如偏航轴承和变桨轴承，国内少数公司可以生产。风电轴承的技术壁垒较高，从目前的情况来看，由于机床等关键设备的订购需要一定的周期，因此，风电轴承达到供需平衡的时间会比较晚，预计轴承的高毛利率能够在较长的时间内得以维持。风力发电配套产业中的储能电池市场蕴藏着巨大的投资机会。储能电池可以解决风力发电的间歇性对电网的冲击问题，保证电网输电的连续性和稳定性。当并网式大型风能发电场装机容量占所在电网系统总容量比例达10%以上时，需要储能电池来稳定电压。风电本地消纳能力受当地电源结构状况影响。衡量本地消纳风电的能力指标主要是风电穿透功率极限，即电网系统中风电场装机容量占系统装机容量的比例，也就是电网调峰能力裕度来容纳风下接16页 » 在线调查下列哪些元器件的供应已不能满足目前中国太阳能和风力发电市场的需求？(多选) □ 肖特基二极管 □ 齐纳二极管 □ IGBT及模块 □ MOSFET □ 晶闸管 □ 防雷元件我要投票 www.esmchina.com | 2010年3月 | 国际电子商情 http://www.mitsumi.co.jp/chinese http://www.esmchina.com/POLL_316062.HTM http://www.esmchina.com http://www.esmchina.com

Table of Contents for the Digital Edition of 《国际电子商情》数字版2010年3月刊

STC MCU Co Ltd
Digi-Key Corporation
STC MCU Co Ltd
STC MCU Co Ltd
STC MCU Co Ltd
Texas Instruments HK Ltd
Analog Devices
Mitsumi Electric Co Ltd
Mitsumi Electric Co Ltd
BJ Spaceflight Rising
Advanced MP HK Ltd
Wuhan P&S Information Technology Co Ltd
Hong Kong Baite (Group) Electronic Co Ltd
Burnon International Limited
Hong Kong Baite (Group) Electronic Co Ltd
Zhejiang Jiakang Electronic Co Ltd
SinoHub Inc
Fujitsu Microelectronics (Shanghai) Co Ltd
Shenzhen Secom Telecom Co Ltd
Micrel Semiconductor
Switchlab Inc
Powertek Group Co Limited
Holtek Semiconductor (Shanghai) Inc
ZLG-MCU Development Co Ltd
Micon Design Technology Co Ltd
National Semiconductor Hong Kong Ltd
National Semiconductor Hong Kong Ltd
Shanghai E-Shine Digital Technology Co Ltd
Mouser Electronics
Shenzhen Changyuntong Design Co Ltd
Fuzetec Technology Co Ltd
Fengbao Electronic Technology (Shanghai) Co Ltd
Xiamen Sino Faith Electronic Technology Co Ltd
Honestar Technologies Co Ltd
Tenx Technology Inc
Advanced Power Electronics Corp
Silicon Laboratories
Protronic Asia Limited
Walter Electronic Co Ltd
SyncMOS Technologies Inc
Xiamen Letdo Electron Co Ltd
Innostor Technology Corporation
Excel Cell Electronic Co Ltd
Qualtek Electronics Ltd
Conquer Electronics Co Ltd
International Rectifier
Chitron Electronics Co Ltd
Nanjing Shiheng Electronics Co Ltd
Yeebo LCD Ltd
BYD Company Limited
China Electronics Appliance Shenzhen Co Ltd
Shenzhen Hi-Hone Electronics Co Ltd
Jiangsu Skysoon Communication Co Ltd
Eyang Technology Development Co Ltd
Fuhua Electronic (HK) Co Ltd
Shenzhen Lanson Electroins Co Ltd
Mueller Electric (Shanghai) Ltd
OTAX
CviLux Corporation
Beijing Rowa Beite Electronic Co Ltd
Creativity Convention & Exhibition (Shenzhen ) Co Ltd
Shenzhen Wojin Technology Co Ltd
Xiamen Ningly Electronics Co Ltd
AAC Acoustic Technologies (Shenzhen) Co Ltd
EnEcomponents.com
Trantek Electronics Co Ltd
Weltronics Imaging Technology Ltd
Honghu City Languang Electronics Co Ltd
Prosystems Electronics Technology
Shenzhen Shi Teruixiang Electronics Co Ltd
Nanjing AH Electronic Science & Technology Co Ltd
Shenzhen Runsheng Electronics Co Ltd
Wealth Metal Factory Ltd
Wuhan 709 Printed Circuit Board Technology Co Ltd
Beijing New Chuang Si Fang Electronic Co Ltd
Future Technology Electronics Co Ltd
Jinan Weilida Polymer Materials Co Ltd
Powertronics Co Ltd
Wanco Electronics (HK) Ltd
My Group (Asia) Limited
Sino-Tech International Holdings Ltd
Cytech Technology Ltd/Linear Technology

《国际电子商情》数字版2010年3月刊