Electrical simulation method based on distributed parallel operation method

Abstract

The invention discloses an electrical simulation method based on a distributed parallel operation method. The electrical simulation method specifically comprises the following steps: S1, updating Jacobian matrix elements and a right-end item; s2, preprocessing the Jacobian matrix so as to reduce the condition number of a coefficient matrix; s3, solving the matrix equation by adopting a Krylov subspace method; s4, in each process, performing corresponding calculation according to the task allocated by the host process; s5, collecting data calculated by each process into a host process, and processing to obtain a current iterative solution vector; s6, performing convergence judgment, entering the step S7 when matrix solution convergence is performed, otherwise, returning to the step S3, and obtaining a solution vector according to current calculation; and S7, judging whether a current nonlinear iterative solution convergence condition is established or not, and when the convergence condition is not established, performing solution again until nonlinear solution is converged. According to the invention, the design is optimized, and the solving efficiency of complex large system simulation can be remarkably improved by fully utilizing hardware computing resources in a local area network.

Description

technical field [0001] The invention relates to the technical field of computer virtual simulation, in particular to an electrical simulation method based on a distributed parallel computing method. Background technique [0002] Electrical simulation technology is widely used in the design of complex electrical systems such as aviation, aerospace, ships, weapons, and rail transit. At present, general electrical system simulators generally use the direct method based on LU triangulation to simulate the system. For large sparse matrices, the parallel operation of LU triangular decomposition has a large technical obstacle. Therefore, the current general solvers generally use single-node technology for electrical system simulation. With the development of multi-electrical and all-electrical technologies, the independent power supply system is becoming more and more complex. At the same time, with the continuous progress of modeling technology, the complexity of the electrical sy...

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Problems solved by technology

With the development of multi-electric and all-electric technology, the independent power supply system is becoming more and more complex. At the same time, with the continuous advancement of modeling technology, the complexity of t

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