China Machinery Peak Shaving Energiespeicherprojekt
Short term load forecasting and peak shaving optimization based on intelligent home appliance: Chen-lin WANG1(),Jie YANG1,Wen-jun JU2,Fu GU1,Ji-xi CHEN1,*(),Yang-jian JI11. College of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China 2. Qingdao Haier Technology Limited Company, Qingdao 266100, China
What is peak shaving in Ningxia power system?
The problem of peak-shaving in the Ningxia power system Peak-shaving refers to the reasonable adjustment of power system according to the change of power load to ensure the reliability and stability of a power supply. In the power system, the load usually shows “peak” and “valley” differences.
What is peak shaving in power system?
In the power system, the load usually shows “peak” and “valley” differences. It refers to the fact that the load is higher during certain times of the day and lower during other times of the day. In order to meet the peak demand, the power system needs to carry out peak-shaving.
Why is peak shaving difficult in China?
Unfortunately, renewable energy outputs are random, unstable and hard to predict, which makes peak shaving difficult. The peak shaving problem has become a big barrier to the development of new energy sources in China. Currently, the proportion of peaking power capacity in China is too small to meet the soaring peak shaving requirements.
How to improve peak-shaving capacity of Ningxia power system?
Utilizing the deep regulation capability of thermal power units and energy storage for peak-shaving and valley filling is an important means to enhance the peak-shaving capacity of the Ningxia power system. There are existing references on the economic optimization of operation using energy storage and thermal power units.
What is deep peak shaving?
Deep peak-shaving is a type of peak-shaving operation mode which is carried out in thermal power plants beyond the basic peak-shaving range when the load difference between peak and valley is large. The paid peak-shaving standard of thermal power units is 50 % of their rated capacity.
What is the winning capacity of thermal power unit deep peak-shaving?
The winning capacity of thermal power unit deep peak-shaving not only depends on its technical output limit but also is affected by the unit quotation. In this example, the thermal power unit second grade deep peak-shaving quotation is 550 yuan/MWh, while the abandonment cost of renewable energy is 500 yuan/MWh.
