| Grasping the characteristics of electric load accurately and knowing its development trend is the important basis of doing power planning, project, production operation. In recent years, with the rapid economic development of our country and the continuous improvement of people’s living standard, as well as the energy conservation and emissions reduction, climate, temperature and other factors, there is an. obvious change with the characteristics of power grid load. In accordance with the big goal of the eighteenth party of China to build a well-off society in an all-round way by 2020, our country economic restructuring, transformation of development mode,rapid development of new energy and distributed energy, and smart grid construction, etc., will have great influence on load characteristic in the future. In order to further understand the zhengzhou region, and regional key industries of historical change and current situation of the load level and load characteristics, and the influence of related factors on the load characteristic, accurately grasp the rule and trend of the change of load characteristic, improving the science, accuracy of the analysis and prediction of electric power market, improve the power grid planning, planning, production and other work support dynamics, is very necessary to carry out the load characteristic research.This article makes a detailed analysis on the changing conditions and features year by year of maximum load, maximum load peak and valley difference, maximum load peak and valley difference rate, seasonal imbalance coefficient, annual load curve, maximum load using hours via analyzing and integrating the data from 2005 to 2010 and from 2010 to 2012.Through analyzing the load features of different industries and the power load distribution of different regions and the power load density, it concludes the power consumption increasing characteristics, the power load increasing characteristics, the relation between power consumption and power load, the changing features of the main load characteristics index and its causes in recent years in Zhengzhou.In the end, by using the analysis and conclusion above mentioned, this article puts forward some suggestions on electric power grid development, planning, distribution network construction, the total power and trans-regional relief support structure, the DSM policy, price policy and so on, for the future Zhengzhou. |