The Cooling Load And Its Sensitivity To Air Temperature Inshenzhen

With the development of national economy and improvement of people's living standard as well as the rapid development of high & accurate manufacturing enterprises.Cooling equipment and heating equipment ownership rate and usage has increased annually.This results in increasing the proportion of temperature-sensitive load(cooling load and heating load).Temperatures lead to increasing power load changes,especially the phenomenon in the Shenzhen region.Shenzhen Power Supply Bureau is to create a world-class advanced enterprises,the prediction accuracy of the load during the summer have become increasingly demanding,year,month,day,maximum load forecast.This makes Shenzhen summer cooling load characteristics become more and more important.For to quantitative grasp the impact of temperature on the cooling load,this paper studies the maximum cooling load separation method of Shenzhen City,with temperature-sensitive characteristics.First,analysis of the historical load data collected.Then,this paper introduces several kinds of methods to research the correlation between the different data.After further investigation,analysis the method for separating daily maximum electric refrigeration from daily maximum load,which based on the correlation between the daily maximum power and the temperature,and Analysis of these two kinds of load characteristics along with the change of related factors.Consequently,the method for separating daily maximum electric refrigeration load is proposed,and the formula of daily maximum electric refrigeration load in terms of air temperature is put forward.The sensitivity if Shenzhen daily maximum electric refrigeration load to temperature is analyzed.Finally,consider the temperature of the cumulative effect of the influence of temperature and Correct temperature parameters.Investigate crediting temperature the Shenzhen region of the cumulative effect of temperature and cooling load relationship again.The results prove that the correlation between the daily maximum power and the highest temperature is the strongest.The correlation between the daily maximum power and the average temperature is moderate.Within the daily maximum temperature of 26-28 °C,the temperature of each degree rise in load and temperature increase of about 191,500 kW cooling load is sensitive to the temperature moderate.Within the daily maximum temperature of 28-32°C,the temperature for each degree rise in load and temperature increase of about 396,200 kW cooling load is highly sensitive to temperature.Daily maximum temperature above 32?,the temperature for every degree rise by about 132,500 kW cooling load and cooling load is relatively small sensitive to temperature.This result has significance for draw up cooling load response program and to ensure the safe and reliable operation of the Shenzhen grid.