文档介绍：Power Quality Assessment and Its Outlooks for Further Research
Xiao Xiangning North China Electric Power University, China September 15, 10:40-11:10
CICED2010, Nanjing, 12-16day;
development of the power supply system for more intelligent
Contents
Backgrounds
Voltage sags assessment
Extensive Voltage Sag Characteristics Assessed
Power Quality Economics
Corrected Reliability Indices based on Economics
Voltage deviation assessment
Reasonable Assessment
Interaction Between DER and Quality Assessment
Outlooks for power quality assessment
Conclusion
Background
Smart Grid Research is
ing a focusing issue.
Background
Voltage sags
Deviations
Outlooks
Conclusion
Smart Grid in China Can Achieve Billion Tons of Carbon Emission Reduction over the Next Decade
Strong Smart Grid—in China
Backgrounds
After analyzing to the adverse impaction of SG, an expert of PQ standardization in USA, prof. McEachern said if the research work not to do on PQ problems same times, smart grid will make power quality worse, not better.
Power quality control should be regarded as a important part of smart grid .
But the benefits of SG are great, so it should continue…
Backgrounds
A power quality disturbance can be defined as a deviation from the ideal (sinusoidal, constant magnitude) voltage or current.
Based on the monitored data or simulated data of power system operating parameters, power quality assessment, which is a very important part of power quality research area, is a process of calculating the quality indices and checking whether the values fulfill the standard limitation, or whether the power disturbances make equipments miss-function.
Background
Voltage sags
Deviations
Outlooks
Conclusion
Backgrounds
The power quality standards should be improved on the basis of further research, though a set of useful standards have been published. The changes of power load constitution, the development of distributed generators, and the integration of large scale new sou