Power Quality
The Research of a New Method to Improve Flicker Accuracy
With the rapid development of technology and domestic economy,diverse kinds of industry production demand higher power quality.Yet a growing number of the wavy high power loads made the voltage fluctuate and influenced the power quality heavily.The key index that could establish the severity of voltage fluctuation is flicker. The basic conception of voltage fluction and [...]
Research on Power Quality Evaluation of Rural Grid
Together with the development of new rural electrification, the number and the nature of rural load both have changed. People paid more attention to the quality of rural power supply. In order to meet with the rural users’ requirements of power quality, enhance the quality of service, it’s necessary to make the synthetic evaluation of [...]
Research on Power Quality Evaluation of Rural Grid
Together with the development of new rural electrification, the number and the nature of rural load both have changed. People paid more attention to the quality of rural power supply. In order to meet with the rural users’ requirements of power quality, enhance the quality of service, it’s necessary to make the synthetic evaluation of [...]
Research and Design of Power Quality Monitoring System
With the development of industrial technology, more and more equipment need higher power quality, however, many non-linear loads, power electronic equipment, so the power quality monitoring becomes extremely important. The article described the relative monitoring theory, methods, equipment in such a background. Based on reading of a lot of literature, the power quality monitoring terminal [...]
Development of the Motor Power Quality Analyzer
With the day by day expansion of industry scale and the rapid development of science and technology, the electrification level of industrial equipments is higher and higher; the requirement on power quality is then more and more strict as well. Moreover, many new model of electric equipments bring electromagnetic interference into power network when they [...]
Analysis and Control of Shunt Dynamic Voltage Regulators
There are only two stable state in the traditional distribution network for Static Synchronous Compensator (D_STATCOM), that is inductive reactive and capacitive reactive power state. Although the phase angle and amplitude of the output voltage can be controlled, with the absence of active capacity, in the steady-state, the phase angle and amplitude can not be [...]
Study on the Impact of Wulatezhongqi Power Grid for Large Scale Wind Power Connected
With daily increasing installed capacity of wind energy in Inner Mongolia,it has a higher safety demand on the operation management of local power system due to massive wind power access.According to the data of electronic source,current situation and development plan of power system in western Inner Mongolia,this paper researched the possible effect of access of [...]
Study on the Impact of Wulatezhongqi Power Grid for Large Scale Wind Power Connected
With daily increasing installed capacity of wind energy in Inner Mongolia,it has a higher safety demand on the operation management of local power system due to massive wind power access.According to the data of electronic source,current situation and development plan of power system in western Inner Mongolia,this paper researched the possible effect of access of [...]
Study on Power Quality Analysis and Compensation Method
With the expanding of power system and the increasing of non-linear loads,the “harmonic pollution” of the power system has become more and more serious.For harmonics of the power system may result in serious damage and major economic losses,harmonic treatment has great significance.This thesis shows the specific analysis method for harmonic,voltage imbalance, voltage fluctuation and flicker,and [...]
The Testing and Analysis of Power Quality in Traction Substation
With rapid development of electrified railway in China, Power quality problems caused by electric traction have attracted more and more attention. Electric traction, which is the electric locomotive running on the electrified railway, is a kind of load that is single-phase, high-power and nonlinear. Compared with other load in power system, while the locomotive is [...]