天然气网络和电源、电网联合规划的方法研究

发布时间：2018-10-19 16:21

【摘要】：为了促进各类能源综合利用、供需互动和高效运行,以电网为核心的新一代能源系统应运而生。不同于传统的电力系统,新一代能源系统中的电力网络和天然气网络通过燃气机组紧密地联系在一起,并相互影响。因此,为保证未来电力网络和天然气网络的安全运行,亟需开展电源、电力网络和天然气网络联合规划的研究。在考虑电力网络和天然气网络安全运行约束后,提出了以投资费用和运行费用最小为目标的天然气网络和电源、电网多阶段联合规划模型。该规划模型是一个复杂的大规模、高维数、非凸、非线性优化问题,很难求解。为了解决这一难题,该文提出采用增量分段线性化方法将原模型转化为一个大规模混合整数线性优化问题,从而可以采用成熟的数学优化方法得到给定误差精度要求的最优解。采用所提方法可以得到电源、输电线路和天然气管道的投建容量、投建位置和投运时间。算例系统验证了所提方法的正确性和有效性。
[Abstract]:In order to promote the comprehensive utilization of all kinds of energy, the interaction between supply and demand and efficient operation, the new generation energy system with grid as the core emerges as the times require. Different from the traditional power system, the power network and the natural gas network in the new generation energy system are closely connected with each other through gas generating units and interact with each other. Therefore, in order to ensure the safe operation of power network and natural gas network in the future, it is urgent to study the joint planning of power supply, power network and natural gas network. Considering the safe operation constraints of power network and natural gas network, a multi-stage joint planning model of natural gas network and power supply and power network is proposed, which aims at minimum investment cost and operation cost. The programming model is a complex large-scale, high-dimensional, non-convex, nonlinear optimization problem, which is difficult to solve. In order to solve this problem, an incremental piecewise linearization method is proposed to transform the original model into a large scale mixed integer linear optimization problem. By using the proposed method, the power supply, transmission line and natural gas pipeline construction capacity, location and operation time can be obtained. An example is given to verify the correctness and effectiveness of the proposed method.
【作者单位】：西安交通大学电气工程学院;
【基金】：国家重点基础研究发展计划项目(973项目)(2016YFB 0901903) 国家自然科学基金重点项目(51637008)~~
【分类号】：TM715

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