多区域电-气综合能源系统优化调度:改进二阶锥松弛与ADMM方法

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"基于改进二阶锥松弛的多区域电-气综合能源系统优化调度快速求解方法" 本文提出了一种针对多区域电-气综合能源系统(MIEGSs)优化调度策略的快速求解方法,主要针对求解过程中的非凸难点。该方法结合了改进的二阶锥(SOC)松弛技术和交替方向乘子法(ADMM),以提高求解效率和保证问题的凸优化特性。 首先,文章构建了MIEGSs的数学模型,将涉及管道方程的非线性约束通过松弛转化为线性约束,这有助于简化问题。通过解决松弛后的模型,可以得到管道流量的初始值,进而确定管道的流向。关键创新在于,基于确定的流向应用二阶锥松弛技术,避免引入整数变量,从而将原本非凸的子问题转化为可求解的凸优化问题。 接着,采用ADMM分布式优化方法,对各个区域的子问题进行交替迭代求解,以实现不同区域间的协调配合。由于所有子问题都是凸优化形式,这保证了ADMM算法的收敛性,同时加快了解决速度。 文章通过实际算例仿真验证了该方法的有效性和快速性,证明了方法对于解决MIEGSs优化调度问题的实用性。此外,还进行了参数敏感性分析,揭示了算例参数如何影响方法的性能,为实际应用提供了指导。 总结来说,这种方法为多区域电-气综合能源系统的优化调度提供了一个快速且高效的解决方案,特别适合处理大规模、多主体的能源系统,有助于保护用户隐私,适应日内和实时市场的快速响应需求,对于未来智能电网和综合能源系统的优化调度研究具有重要价值。

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