Multi-Control System For Diesel Generator Sets In The Equipment For Instantaeous And Disturb-Free Automatic-Switch Of Double Power

With the developing of technology and equipment,the more and more excellent quality and reliability of power are desired,especially,some national defense department almost don not allow the break of 3～5ms,so spare power supply becomes absolutely necessary equipment.Firstly,the paper introduce the development of UPS,EPS and ATS,point out that the equipments could not used for field operation。Then,on the base of the principle of correlation coefficient of two waveforms and the instantaneous reactive power theory,it brings forward a new equipment-Instantaneous,not interferential and automatic switch equipment of two power sources,it utilize the value which will shut off when power flow converse and contactor to avoid converse power flOW。The equipment could identify and insulate the broken-down power source with the method of inspecting the correlation coefficient of voltage and instantaneous active power waveforms in 5ms,and keep continuous power supply in this process。In the device,the control to the diesel generator sets is as important as switching for power supplies,it is depends on the control strategy the whether the system would go on running in a stable state,and searching a credible way for the control to the gensets is one thing that must be deal with firstly,and also it is what the novel will deal with.Finally,the paper introduce the result of examination that was carried out in a military base,emphasize the equipment contribute to the switching technology of spare power supply and typical relay protection theory。...