Serial communication method of active distribution network real-time simulator based on multi-fpga

Abstract

The invention discloses a serial communication method for the real-time simulator of an active distribution network on the basis of multi-FPGA (Field Programmable Gate Array). The method comprises the following steps that: 1) downloading each piece of subsystem information to a corresponding FPGA; 2) setting a simulation moment t=0, and starting simulation; 3) forward boosting simulation time for one step size, wherein t is equal to t+[Delta]t; 4) finishing simulation calculation by each FPGA; 5) sending simulation interface data obtained by calculation to each FPGA; 6) receiving and writing the simulation interface data to a data memory by each FPGA; 7) carrying out communication end checkout on a real-time simulator; 8) judging whether physical time achieves simulation time t or not, if the physical time achieves simulation time t, entering a next step, and otherwise, entering a next step after the real-time simulator stands after t; and 9) judging whether the simulation time t achieves a set final end moment or not, ending simulation if the simulation time t achieves the set final end moment, and otherwise, returning to the 3). By use of the serial communication method, on a premise that the simulation speed of the real-time simulator is met, simulation accuracy is guaranteed, and a foundation is laid for the real-time simulation of the large-scale active distribution network on the basis of the multi-FPGA.

Description

technical field [0001] The invention relates to a communication method for a real-time simulator of an active power distribution network. In particular, it relates to a serial communication method for a real-time simulator of an active power distribution network based on multiple FPGAs. Background technique [0002] With the massive access of various resources on the distribution side, such as distributed power sources, energy storage devices, and microgrids, the organizational structure and operating characteristics of active distribution networks have undergone extensive and profound changes. The above characteristics of the active distribution network make it quite different from the traditional distribution system in terms of planning and design, operation optimization, protection control, simulation analysis, etc. At the level of simulation analysis, various distributed power sources, energy storage, power electronic devices and other new equipment widely connected to ...

AI Technical Summary

Problems solved by technology

Real-time simulators based on serial processors are limited by the signal processing speed and physical structure, and the real-time simulation computing power is relatively limited. At the same time, the data transmission delay between multiple processors limits the choice of simulation step size.

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