《国际电子商情》数字版2010年8月刊 - (Page 30)

封面故事海上风电场将成主流趋势，并网瓶颈呼求智能电网 » 上接29页出，风力发电在实际开发过程里还受其它一些因素的制约，如风电场建设须综合考虑交通、地质、环境保护、与电网的连接条件等因素等。智能电网有望打破风电瓶颈风力发电对改善能源结构、提高多种复合能源的利用率起到了关键作用，但风力发电，特别是大规模的风力发电一旦实现并网运行将会给传统电网带来很大影响。风电本身是一个间歇性不可控的能源，并入传统电网之后，整个能源系统都要进行相应的调整。随着风电单机容量的提升，发电峰谷差也逐渐加大，给发电调度和电网安全造成更大的冲击。张松刚分析，首先由于风力发电的原动力不可控，发电输出的电能具有波动性和间歇性，当风力发电并网规模达到一定程度是将会改变电网的潮流分布，传统电网的潮流控制将发生重大改变，会直接影响电网的稳定性。其次，由于风力发电的不确定性，所带来的风能功率的波动性而使得电网电能质量的下降。 “风力发电与太阳能发电一样也会有孤岛效应，采用传统的电网保护及测控设备都无法满足要求，需要更新型的电网保护及控制设备；风力发电也需要更多的储能设备加入电网。”张松刚强调，传统电网很难满足大规模风力发电的并网接入，发展智能电网将是非常迫切的。张松刚：大规模风力发电的并网瓶颈要求风力发电并网发展智能电网。难的困境，导致大部分的风力发电设施在夜间风力发电高峰期停运，传统电网缺少消化和输送能力白白浪费了大量能源。风力发电场占用土地资源广，因此目前中国大部分风电场建造在偏远地区。许浩平指出，风电场所处地区配电网较落后，给风电并网造成一定困难。下接34页 » HALF PAGE AD (horizontal) 215mm x 139mm 30 国际电子商情 | 2010年8月 | www.esmchina.com http://www.esmchina.com/STATIC/SITE/DigitalEdition_201008.HTM#tj http://www.hi-hone.com http://www.hi-hone.com http://www.hi-hone.com http://www.esmchina.com

Table of Contents for the Digital Edition of 《国际电子商情》数字版2010年8月刊

STC MCU Co Ltd
Digi-Key Corporation
STC MCU Co Ltd
STC MCU Co Ltd
STC MCU Co Ltd
Shanghai Yachuang Electronics Co Ltd
Zhejiang Jiakang Electronic Co Ltd
Texas Instruments HK Ltd
ZLG-MCU Development Co Ltd
Advanced Power Electronics Corp
Analog Devices
Shanghai Keter Polymer Material Co Ltd
A-Bright Industrial Co Ltd
DongGuan ShiLong HuaTong Electronic Co Ltd
National Semiconductor Hong Kong Ltd
SyncMOS Technologies Inc
SinoHub Inc
Excel Cell Electronic Co Ltd
Mitsumi Electric Co Ltd
Mitsumi Electric Co Ltd
Shenzhen Hi-Hone Electronics Co Ltd
Hong Kong Baite (Group) Electronic Co Ltd
BYD Company Limited
BYD Company Limited
Axelite Technology (Shenzhen) Co Ltd
International Rectifier
Burnon International Limited
Micrel Semiconductor
Jiangsu Skysoon Communication Co Ltd
Richardson Electronics
China Electronics Appliance Shenzhen Co Ltd
National Semiconductor Hong Kong Ltd
Conquer Electronics Co Ltd
Renesas Electronics
Wuhan P&S Information Technology Co Ltd
Intersil Corporation
Honestar Technologies Co Ltd
Cognex Asia Inc Shanghai Rep Office
Fuzetec Technology Co Ltd
Lampek Enterprise Development (HK) Limited
Chiphomer Technology (Shanghai) Limited
Shenzhen Mornsun Electronics Co Ltd
Xiamen Ningly Electronics Co Ltd
Digi-Key Corporation
OTAX
CviLux Corporation
Powertek Group Co Limited
Mueller Electric (Shanghai) Ltd
Xiamen Letdo Electron Co Ltd
Hong Kong Trade Development Council
BCD Semiconductor Manufacturing Limited
Emirates Sky Cargo
Fengbao Electronic Technology (Shanghai) Co Ltd
Innostor Technology Corporation
Yeebo LCD Ltd
Eyang Technology Development Co Ltd
Nanjing Shiheng Electronics Co Ltd
LPKF (Tianjin) Co Ltd
Nanjing AH Electronic Science & Technology Co Ltd
Up Teks Co Ltd
Beijing Rowa Beite Electronic Co Ltd
Honghu City Languang Electronics Co Ltd
Shenzhen Runsheng Electronics Co Ltd
Trantek Electronics Co Ltd
Beijing Times Creation Electronic Co Ltd
EnEcomponents.com
Wealth Metal Factory Ltd
Weltronics Imaging Technology Ltd
GangYuan Electric Co Ltd,
Shenzhen NanDao Electromachinery Co.,Ltd
Pro Systems
Qualtek Electronics Ltd
Mouser Electronics
Protronic Asia Limited
Walter Electronic Co Ltd
Beijing New Chuang Si Fang Electronic Co Ltd
Shenzhen Jiaweiyi Technology Limited
My Group (Asia) Limited
Asiacom Technology (HK) Ltd
Sino-Tech International Holdings Ltd
Sino-Tech International Holdings Ltd
Shenzhen Qiankun Industrial & Trading Development Co Ltd

《国际电子商情》数字版2010年8月刊