[基础科学]丹佛斯谐波处理方案.ppt

优点和缺点 电磁兼容 - EMC 电磁相容性 EMC 增加系统可靠性 电磁干扰效应的影响 传导干扰进入电源或来自变频器和电机电缆的辐射干扰可能引起： 其它控制系统和计算机不能正常工作。 收音机，电视机及监视设备严重受到干扰。 电子设备因其电源过载而停止工作。 高灵敏测量及监视设备将停止工作。 RFI/EMI 和丹佛斯变频器 所有的丹佛斯变频器都按照EN 55011 标准测试过和EN 61800-3兼容. 对于大多数丹佛斯变频器来说安装了RFI 滤波器，可与 EN 55011 1B 兼容 EN55011 cl. B, A1 和 A2的限制等级 独立的小电网系统 132kW 对谐波有严格的要求的领域 132kW 医院 机场 半导体工厂 需要IP54 防护等级安装领域 在电力不足或电力限制的电网安装变频器（ 132kW） 远程安装 发电机 (船用) 小电网 其它高速增长领域 VLT有源滤波器应用领域 VLT有源滤波器数据 MCT10 support Redesigned parameter database. Fewer parameters than the drive. Auto current transformer detection Signal read out in display My Personal Menu Password protection Installation, setup, commissioning etc. Paralleling to achieve higher current rating Safe stop Automatic overload handling without tripping Reactive current limit Reactive current compensation Selective or overall harmonics mitigation. Harmonics mitigation up to 25th harmonic System performance Control using field bus HFD (Fully integrated = one LCP)（2008） Stand alone active filter OEM adaptations（2008） Graphical programming of harmonic references (TBD) Four setups Display of THDi Display of harmonic currents Application features Profibus, Devicenet（2008） Modbus RTU（2008） FC Bus Field bus support Auto reset of trips (programmable) Active filter specific protections (example: trip if THDv 30%) AC contactor management for protections System reliability and protection 与对手比较 Wants active solution Passive solutions Schaffner Considering to develop active 18Pulse drive Toshiba No active filter Regen Power factor correction Unit Misubishi High Switching freq. Active filters Refu Claims to have active Passive filters TCI Very expensive Active harmonic Filter AIM Not Active 18 Pulse Clean Power ASIRobicon Integrated Active Front End NX- series Vacon Global company Accusine filters, VaTech Mars filters Schneider Market # 2 AIM Active filters Siemens Market Leader, High Price PQFM, PQFA, PQFK active filters ABB/Condensator Dominit Comments Low Harmonic Product seri