Method for carrying out parallel transient simulation computing on microgrid suitable for nodal analysis frameworks

Abstract

The invention discloses a method for carrying out parallel transient simulation computing on a microgrid suitable for nodal analysis frameworks. The method comprises the following steps: carrying out modeling on each distributed power supply and each controller model of each distributed power generating unit in the microgrid, and carrying out modeling on a power distribution network, a power electronic device and a filter circuit; reading the basic information, topological connectivity and parameters of each component; determining subsystems of a naturally-decoupled control system and the number of the subsystem; creating (nc + 1) computing threads or process; advancing the previous simulation time a step length: t = t + Delta t; carrying out communication between the computing threads orprocesses; according to the number of a CPU (central processing unit) on a microcomputer and the number of simulation tasks, carrying out simulation task assignment; and judging whether the simulation time reaches an ultimate simulation moment. By using the method disclosed by the invention, the simulation computing speed of a distributed power generating microgrid system can be effectively improved, and the method is simple and the program is easy to implement; and meanwhile, through using various basic links of a control system, the modeling of various complicated nonlinear distributed power supplies and controllers can be realized, therefore, the method has high flexibility.

Description

technical field [0001] The invention relates to a power system simulation. In particular, it relates to a parallel calculation method for microgrid transient simulation suitable for node analysis framework, which is suitable for electromagnetic transient simulation program based on node analysis framework. Background technique [0002] Since modern times, electric energy has been one of the most effective ways of energy utilization. With the increasing demand for energy from the development of human economy and society and the increasingly prominent environmental problems, the traditional centralized power generation methods dominated by fossil fuels are being challenged, and various distributed power generation technologies represented by new energy utilization are being increasingly accepted. more and more attention and application. [0003] Distributed power generation technology mainly refers to the use of various available decentralized energy sources, including renew...

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Problems solved by technology

The only problem is that the attached figure 2 The calculation process between the shown electrical system and the control system is still serial

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