加速重叠分块Newton法并行计算潮流问题

Accelerated overlapping block-parallel Newton method for load flow equations

实现电力系统实时、超实时控制的关键在于快速求解潮流方程。并行计算是一个极有意义的努力方向。用一种带加速技术的重叠分块Newton法对潮流方程进行快速求解,用IEEE662节点电力系统对算法进行了并行实现,并与简化Newton法及并行松弛Newton法等进行了比较。结果表明:加速技术的运算速度为简化Newton法的4倍;所述算法能够较好的应用于实际的快速求解潮流问题,具有较明显的优越性;与松弛Newton法相比,具有更为广泛的适用性。

Real-time control of power system needs rapid solutions of the load flow equations, which usually involves parallel computations. This paper presents an overlapped block Newton method with an accelerated technique for efficiently solving the load flow equations. The method was implementated in parallel on the IEEE 662-bus system. The accelerated technique increases the convergence speed about four times. The results show that the method is much more effecient than the simplified Newton method and the parallel relaxed Newton method.