Practical quantum computing applications to power grids are nonexistent at the moment. This paper investigates how a fundamental grid problem, namely DC power flow, can be solved using quantum computing. Power flow is the most widely used power system analysis technique, either as a stand-alone application or embedded in other applications; therefore, its fast and accurate solution is of utmost significance for grid operators. We base our studies on the Harrow-Hassidim-Lloyd (HHL) quantum algorithm, which has a proven theoretical speedup over classical algorithms in solving a system of linear equations. Practical studies on a quantum computer are conducted using the WSCC 9-bus system.

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解决网络直流潮流问题的实验量子计算

目前还没有实用的量子计算应用到电网。本文研究了如何使用量子计算解决基本的电网问题，即直流潮流。潮流是应用最广泛的电力系统分析技术，无论是作为独立应用程序还是嵌入到其他应用程序中；因此，其快速准确的解决方案对电网运营商而言至关重要。我们的研究基于 Harrow-Hassidim-Lloyd (HHL) 量子算法，该算法在求解线性方程组方面比经典算法具有经过验证的理论加速。使用 WSCC 9 总线系统对量子计算机进行了实际研究。