Research on system breakthroughs and operating mechanisms to improve new quality productive forces of electric power under the new energy system

ZHAO Erdong; TAN Qingbo; ZHANG Amin; TAN Zhongfu; ZONG Haijing

Abstract：Under the new energy system,the number of entities with various types of roles,that is,source,grids,load and storage,will increase significantly,and the entities need to operate collaboratively to achieve power balance and balance.Power balance is the total power generation within a period of time equal to the sum of total power consumption and power loss,regardless of changes in load over time.Electricitybalance means that the power generation output is equal to the sum of the power load and the line loss load,and is closely related to the change of load over time.That is,when the load changes,the power generation output can achieve a new balance state in a timely manner.The controllability of new energy power generation is low,and it is almost impossible to keep up with load changes in time.After large-scale and high-proportion new energy penetration,it is difficult to achieve power balance and power balance,which needs to be solved through"source-grid-load-storage complementation"."source-grid-load-storage complementation"requires breakthroughs of separate systems,regardless of supplyside systems including photovoltaic power generation,small wind power,CCHP,electric heating,electric gas production,and biomass heating boilers,power source heat pump,air source heat pump,waste heat and pressure recovery,etc.,or consumption side systems includingelectricity,gas,cold and heat storage,electricity and gas storage,cold and heat(heating,steam,hot water,etc.),electric vehicle charging,etc.It is necessary to break through the original institutional barriers of each energy source,break the original independent planning,operation and dispatching methods,and coordinate planning and unified operation.Promote horizontal multi-source complementarity and vertical"source-grid-load-storage"coordination to form a multi-energy complementary system that integrates centralized energy supply and distributed energy supply.Targeting cities,towns,industrial parks,airports,train stations,commercial complexes,etc.,by multiple drives of policies,systems,mechanisms,and technologies,the new business formats and new consumption models in the power industry will be spawned,new momentum will be released,and new quality productive forces will be enhanced.