Application Research Of Harmonic Control System Of Qingdao Cigarette Factory

In order to improve the degree of automation of electric power transmission equipment in cigarette factories,save energy and reduce consumption level,and improve the quality and yield of cigarettes,the inverter is widely used in medium-and large-sized power equipment.Although this promotes energy saving and consumption reduction,it increases the power grid The content of odd harmonics,in bringing harmonics,surges,but also pollutes the power grid inside and outside the plant,affecting the operation of the plant's power electronic equipment stability.This thesis mainly analyzes and studies from the following aspects:First of all,on the basis of absorbing the introduction of the advanced harmonic compensation at home and abroad,the concept of energy-saving and power-saving technology,the ultra-wideband power-saving protection technology is used to compensate the harmonic of the cigarette enterprise and eliminate the surge.The basic principle,harmonic current compensation method and its realization process of ultra-wideband energy-saving protection system are analyzed in detail.Based on the harmonic detection method based on instantaneous reactive power theory,the compensation command current based on instantaneous voltage vectorial orientation Detection of new methods to achieve real-time harmonic current detection and compensation.Secondly,the harmonic analysis of the electricity equipment of the cigarette enterprises was carried out.This paper analyzes the mechanism and harm of electric equipment in the cigarette enterprise and its harmonics,analyzes the main harmonic sources in detail according to the characteristics and current situation of the tobacco companies,and presents the main components of the harmonic source.Finally,the application of ultra-wideband filter power-saving protection system in cigarette enterprises.By studying the working principle and network topology of ultra-wideband energy-saving protection system,the functions and applications of ultra-wideband energy-saving protection system are analyzed.The feasibility and effectiveness of ultra-wideband energy-saving protection system in cigarette enterprises are clarified.Harmonic governance,energy saving,healthy operation of equipment.By integrating the application of harmonic control system in cigarette enterprises,further improving the power quality greatly reduces the cost of equipment maintenance,and plays a great role in saving energy and reducing consumption,and always running the equipment in healthy condition.