Low-carbon scheduling of CHP virtual power plant considering carbon market risk

The heat-determined-power operation mode of coal-fired thermoelectric units will lead to insufficient absorption of new energy and produce excessive carbon emissions during operation. Therefore，a combined heat and power（CHP） virtual power plant model considering ground-source heat pump，power to gas （P2G） and carbon capture and storage（CCS） is established，and a low-carbon scheduling strategy for virtual power plant based on carbon market risk is proposed. The following-day carbon price of carbon market is predicted by using autoregressive moving average model and generalized autoregressive conditional heteroskedasticity model，and its fluctuation risk is measured by conditional value at risk model. The ground-source heat pump of electric heating equipment is introduced，and the heat-determined-power operation constraint of CHP is decoupled by the collaboration of P2G-CCS. An optimal scheduling strategy is proposed with the minimum sum of the operation cost of each equipment，the penalty cost of wind and photovoltaic abandonment and the risk cost of carbon trading and carbon market as the objective function. The example results show that the proposed scheduling strategy can not only promote the consumption of new energy and improve the economic benefits，but also reduce the carbon emission of the system. © 2024 Electric Power Automation Equipment Press. All rights reserved.