论文标题
直流电流的量子计算解决方案
Quantum Computing Solution of DC Power Flow
论文作者
论文摘要
在本文中，我们使用实用的量子计算机对基本电源系统问题进行建模并解决DC电源。 Harrow-Hassidim-lloyd（HHL）量子算法用于解决DC功率流问题。用于解决线性方程系统（SLE）系统的HHL算法在经典计算机上提供了指数加速。当解决功率流问题的大小和频率变得更加实质时，加速优势就会更加重要。在这一点上，对电源系统的验证量子计算应用仅不存在。通过本文，我们计划（1）提供了概念概念，即可以使用量子技术解决实用的电力系统问题，（2）通过解决许多其他关键网格问题中应用的基本电力系统问题来构建量子网格基础，并且（3）应用HHL在许多电力系统问题中应用HHL SLE。考虑到可用的量子计算硬件和软件的局限性，将一个小型3-BUS系统用于测试和演示目的。使用IBM开源量子计算机证明了所提出的方法的优点和有效性，并通过概念验证实验证明使用4克量子信息处理器进行了报告。
In this paper, we model and solve a fundamental power system problem, i.e., DC power flow, using a practical quantum computer. The Harrow-Hassidim-Lloyd (HHL) quantum algorithm is used to solve the DC power flow problem. The HHL algorithm for the solution of a system of linear equations (SLE) offers an exponential speedup over the classical computers. The speedup advantage is more significant when the size and the frequency of solving the power flow problem become more substantial. Verified quantum computing applications to power systems are merely nonexistent at this point. Through this paper, we plan to (1) provide a proof-of-concept that practical power system problems can be solved using quantum technology, (2) build a quantum-grid foundation by solving a fundamental power system problem with applications in many other critical grid problems, and (3) apply HHL to solve an SLE which has broad applications in many power system problems. A small 3-bus system is used for testing and demonstration purposes, considering the limitations of the available quantum computing hardware and software. The proposed method's merits and effectiveness are demonstrated using IBM open-source quantum computer and reported through proof-of-concept experimental demonstration using a 4-qubit quantum information processor.
