考虑机组组合的气热电多能源系统潮流计算及优化调度
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东南大学电气工程学院

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TM744

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A method for power flow calculation and optimal dispatch of gas-thermal-electricity multi energy system considering unit commitment
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School of electrical engineering, Southeast University

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    摘要:

    考虑机组组合的综合能源系统优化调度是含0-1二元变量的混合整数非线性规划(MINLP)问题,MINLP的高效求解一直是研究的热点。本文提出一种气热电多能源耦合系统潮流计算方法,考虑了燃煤、燃气、新能源3种机组出力,建立了精简的机组组合计算模型,可较大幅度减少二进制变量和约束条件数量。同时建立以经济成本最小、碳排放最少的优化调度模型,对于气流气压方程组的非线性非凸问题,采用基于可行域分割思想的增量分段线性化方法将其转为MILP模型,得到了有效最优解,最后通过一实例验证了所提算法的有效性和准确性。

    Abstract:

    The optimal scheduling of integrated energy system considering unit commitment is a mixed integer nonlinear programming (MINLP) problem with 0-1 binary variables, and the efficient solution of MINLP has always been a research hotspot. In this paper, a power flow calculation method of gas thermal power multi energy coupling system is proposed. Considering the output of coal-fired, gas-fired and new energy units, a simplified unit commitment calculation model is established, which can greatly reduce the number of binary variables and constraints. At the same time, an optimal scheduling model with minimum economic cost and minimum carbon emission is established. For the nonlinear and nonconvex problem of air pressure equations, the incremental piecewise linearization method based on the idea of feasible region segmentation is used to transform it into MILP model, and the effective optimal solution is obtained. Finally, an example is given to verify the effectiveness and accuracy of the proposed algorithm.

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江归安. 考虑机组组合的气热电多能源系统潮流计算及优化调度[J]. 科学技术与工程, , ():

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  • 收稿日期:2020-11-16
  • 最后修改日期:2021-01-28
  • 录用日期:2021-03-14
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