مقاله انگلیسی تحقیق در مورد اقدامات کنترل ولتاژ پایین شبکه توزیع
Abstract
Keywords
Introduction
Summary of network structure in Nailin area
Analysis of the simulation of the Nailin line before low voltage control Introduction
Analyze the cause of low voltageAnalysis of the simulation of the Nailin line after low voltage control
Analysis of the simulation of the Nailin line after low voltage control
Conclusion and suggetion
references
Abstract
distribution network voltage is the main index of power quality, which has a direct impact on the safety and stability of distribution network and the safe operation of power equipment, power loss of transmission lines, industrial and agricultural safety production and people's daily electricity consumption. Based on the PSASP simulation software, the real-time simulation analysis of the voltage in the Nailin area is carried out. During the irrigation period，the simulation results show that the low voltage problem is serious， and the daily load fluctuation is obvious, so it is necessary to adopt the control measures which can adjust the voltage in both directions flexibly. After comparison, the line voltage regulator and SVG are proposed to be used. After low voltage control, the simulation results show that the low voltage problem is obviously improved . Finally, the management measures to improve the low voltage problem are put forward.
Introduction
After startring the agricultural irrigation season in Naiman area, the regional load could increase by hundreds of thousands of kilowatts in a short time. After the end of agricultural irrigation on that day, the regional load gradually decreased, leading to large voltage fluctuation in summer and high voltage problem in autumn and winter, which seriously affected the normal power consumption of residents. Aiming at the seasonal high and low voltage problems of the distribution network in Naiman area, a 10kV Nailin line simulation model was established on the PSASP simulation software platform to accurately reproduce the grid operation state at a certain moment. The voltage of the Nailin circuit under heavy load in summer, heavy load in winter and small load in winter are analyzed, and in-depth analysis of the specific causes of the voltage problem, after comparing different voltage governance measures, using line voltage regulator and SVG with governance, the simulation results show that the output and voltage of the Nailin line are obviously improved.