Electrical internet distributed low-carbon economic dispatching method with demand response

Abstract

The invention discloses an electrical internet distributed low-carbon economic dispatching method with demand response. The method comprises the following steps of establishing a stepped carbon transaction cost model corresponding to carbon transaction cost, establishing a P2G carbon transaction cost model corresponding to the earnings obtained by the carbon emission permit transaction market, according to the stepped carbon transaction cost model and the P2G carbon transaction cost model, establishing a comprehensive carbon transaction cost model to obtain a comprehensive carbon transaction cost, adjusting the load capacity according to the excitation type demand response to construct an IDR-DSM model, adjusting the load capacity according to the price type demand response to establish a PDR-DSM model, establishing a centralized low-carbon economic dispatching model representing the total operation cost on the premise of meeting the power grid operation constraint condition, the natural gas operation constraint condition and the power-gas coupling constraint condition, on the basis of the centralized low-carbon economic dispatching model, adopting an S-ADMM algorithm to solve and establish a completely distributed dispatching model, and ensuring the low-carbon economy of the network.

Description

technical field [0001] The invention belongs to the field of optimal operation of an electric-gas interconnection network, and relates to a distributed low-carbon economic dispatch method of an electric interconnection network with demand response. Background technique [0002] In recent years, with the rapid economic development, the demand for electricity and natural gas has been increasing, which has seriously endangered the ecosystem. Therefore, the concept of developing a low-carbon economy has become one of the issues that countries around the world pay attention to. As of 2018, the carbon emissions of the power industry accounted for about 50% of the national total. Therefore, promoting low-carbon electricity is conducive to accelerating the development of a low-carbon economy and plays a vital role in reducing carbon emissions. As the power grid and the natural gas grid are closely coupled, the coordination and complementarity of multi-energy flows represented by th...

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Problems solved by technology

The incremental piecewise linearization method linearizes this equation, transforming the model into a mixed integer linear form. Although this reduces the difficulty of solving the model, it introduces 0-1 variables, and the solution accuracy and efficiency are related to the number of binary variables. It is often difficult to take both into account at the same time; although the second-order cone relaxation can transform this constraint into a linear constraint form, it does not guarantee the strictness of the relaxation, and cannot solve this model accurately and efficiently.

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