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公开(公告)号:US20110074317A1
公开(公告)日:2011-03-31
申请号:US12993630
申请日:2009-10-05
IPC分类号: H02P5/46
CPC分类号: F04D27/004 , F04D25/166 , F05D2270/335 , F24F11/30 , F24F11/65 , F24F11/77 , F24F2110/00 , F24F2140/12 , F24F2140/50
摘要: The invention relates to a method for controlling a number of fans (2) of a heat exchanger that can be used in refrigeration, air conditioning, or process technology. The fans (2) form a number of fan groups (5), and each fan group (5) is connected to an electrical energy supply (7) selectively by means of a constant power supply (14) or by means of a variable power supply (15). The fan group (5) is operated at a constant fan speed with the constant power supply (14) and at a variable fan speed with the variable power supply (15). A power parameter (I) indicating an instantaneous total power demand of all fan groups (5) supplied by means of the variable power supply (15) is detected. At least one of the fan groups (5) that is currently being fed by means of the variable power supply (15) is switched to the constant power supply (14) if the power parameter (I) exceeds a limit value (Imax).
摘要翻译: 本发明涉及一种用于控制可用于制冷,空调或加工技术的热交换器的多个风扇(2)的方法。 风扇(2)形成多个风扇组(5),并且每个风扇组(5)通过恒定电源(14)或可变功率选择性地连接到电能供应(7) 供应(15)。 风扇组(5)以恒定电源(14)以可变风扇速度与可变电源(15)以恒定的风扇速度运行。 检测指示通过可变电源(15)提供的所有风扇组(5)的瞬时总功率需求的功率参数(I)。 如果功率参数(I)超过极限值(Imax),则当前正在通过可变电源(15)馈送的风扇组(5)中的至少一个被切换到恒定电源(14)。