Abstract:

Building a new power system with new energy as the main body is the hub platform for the “dual carbon” goal,but the instability of new energy generation brings challenges such as peak shaving and lack of flexibility to the power system.To effectively balance the economy and safety of the system,the following steps are taken.Firstly,the improved Worst Condition Value at Risk (WCVaR) is introduced to quantitatively evaluate the potential risks brought by the uncertainty of new energy output.Secondly,an incentive strategy is introduced to balance the electricity load and optimize and upgrade the peak shaving carbon capture of thermal power units,enhancing peak shaving capacity and new energy consumption level,and alleviating the excessive carbon emissions caused by deep peak shaving of thermal power units.Thirdly,a low-carbon economic dispatch model is established with the goal of achieving comprehensive optimization of system operation costs and operation risks.Finally,the effectiveness of the proposed model is verified through experimental simulations.

Key words: new power system, deep peaking, improved WCVaR, low-carbon economic dispatching