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机构地区:[1]沈阳水务集团有限公司,沈阳110000 [2]北京市市政工程设计研究总院,北京100082
出 处:《自动化信息》2010年第5期35-39,共5页Automation Information
摘 要:变频调速在给水工业带来较大经济效益的同时也带来了一些弊端——超标的高次谐波不仅会严重污染电网,而且还可能影响供配电系统的正常运行,对自动化监控系统及一切弱电设备也具有极大的破坏性,其实例很多,损失巨大。变频器如何选择?无功功率如何补偿?高次谐波如何抑制?如何实现对网络安全、快速、综合的优化监控?这些关键问题,在每个工程项目设计中,在贯彻低碳经济和节能减排原则时,都是必须解决的课题。Frequency conversion speed control brings a number of drawbacks to the water industry while it dose great many economic benefits. For example, the electric network will be seriously polluted due to exceeding high-order harmonic, which will seriously affect the normal operation of the power supply and distribution system and cause great damage to the automation monitoring system and some of low voltage weak electricity equipments, there are many examples in practice and losses are great. How to choose frequency converter? How to implement dynamic reactive power compensation? How to restrain high-order harmonic? How to realize optimizing monitoring for networks safely, rapidly and comprehensively? All these are the serious questions that need to be solved in every project that aims at thoroughly ean'ying out the concepts of low carbon economy, energy saving and emission reduction.
关 键 词:变频调速 无功动态补偿 谐波抑制 SVG 网络化监控
分 类 号:TP27[自动化与计算机技术—检测技术与自动化装置]
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