Grid Reactive Power And Harmonic Integrated Control System With Wireless Monitoring Function

Now,the State Grid has strict requirements for reactive power and harmonic content in the power grid.The common power electronic equipment,in industrial production,will produce a large number of reactive power and harmonic to cause the pollution of the power grid.Therefore,it has important significance to study the reactive power and harmonic compensator to ensure that the power network is free from pollution.Similarly,real-time monitoring of power system harmonics effectively,which laid the foundation for the safe and stable operation of the power system.Now,with the development of wireless sensor network technology,wireless technology will be widely used in various occasions.Therefore,the wireless monitoring function added to the power filter to realize power quality monitoring is very important,and this can be said that it is a function expansion of the active power filter.This paper discusses a kind of power grid reactive power and harmonic integrated control system with wireless monitoring function.The 6LoWPAN wireless technology is applied into the power system monitoring system,and makes comprehensive compensation for reactive power and harmonics.First of all,this paper summarizes the research situation of the power filter.Ascertain grid reactive power and harmonic integrated control system with wireless monitoring function as the research content in this paper,give the composition principle of this system,and expound the overall project and research ideas of this project.Then select some core components to prepare for the following design.Secondly,give the general framework of power grid reactive power and harmonic integrated control system with wireless monitoring function.Combining active and passive filter to realize wide band harmonic compensation.Aiming at the research and analysis of the harmonic compensation control method and DC side voltage stabilized of active power filter,we design a rectifier and inverter integrated control to keep the DC side voltage stabilized and remove harmonic.And the reactive power compensator is designed to improve the power factor of the power grid after harmonic compensation.Then using Simulink to made simulation and verification for grid reactive power and harmonic integrated control system.The results show that the designed system,we designed,can realize the compensation of reactive power and harmonic and the hardware and software’s design is basis on this.Then,discussion on wireless network monitoring scheme for grid reactive power and harmonic integrated control system.We mainly focus on the software and hardware’s design of wireless monitoring module.The power quality data,obtained by the mean of the communication with grid reactive power and harmonic integrated control system,transfer to monitoring center by the wireless monitoring network.Therefore,the power quality monitoring and the harmonic compensation,with the reactive power compensation,are simultaneously completed in the grid reactive power and harmonic integrated control system.Finally,the experimental device of power grid reactive power and harmonic integrated control system with wireless monitoring function is set up.Then,carried out the rectifier and inverter integrated control experiment for the voltage stabilization of DC-link and the harmonic compensation.And carried out the wireless monitoring experiment.These experiments verify the feasibility of the system designed in this paper.