The Research Of Technology For Electric Drill Harmonic Suppression And Reactive Power Compensation

Since entering the new century,with the high-speed development of China's oil industry,electric drill in oil mining industry application is more and more popular.thyristor device and the existence of the frequency converter makes the rig electric drive system contains a lot of harmonic.And drilling equipment winch system volatile when the working condition of the string,it will impact the system reactive power load,the voltage fluctuation influence the power supply quality.All electric drill harmonic governance and improve the power factor is more and more attention.This article first analyzes reactive power and harmonic of rig for the first makes a brief elaboration,and then puts forward the drill system comprehensive compensation scheme,and the specific working principle of active power filter,harmonic detection system and control algorithm is made.Reactive power compensation device and harmonic synthesis is put forward using TMS320F2812 DSP as controller,than the traditional single-chip computer control high speed and accurate degree of accuracy and real-time performance is good wait for a characteristic.This topic in the concrete implementation process,the first carried out in accordance with the design target of the system software and hardware of module partition,and on the various modules in the system design and equipment selection,Then the device's successful application in ZJ70 DZ drilling system,finally cooperate with anhui dorje electric co.LTD.Ac frequency conversion electric drive test rig and electrical transmission test-bed for debugging and testing.Test results show the feasibility and rationality of this topic to design and implement,has good application prospect.