Portable all-digital real-time simulation instrument of power system

Abstract

The invention provides a portable all-digital real-time simulation instrument of a power system. The portable all-digital real-time simulation instrument of the power system comprises a machine case, a main control board, a function board and a calculating unit, wherein the main control board, the function board and the calculating unit are placed inside the machine case. The main control board, the function board and the calculating unit are in mutual communication through a PCI bus, and the main control board controls the operation and communication between the function board and the calculating unit. The function board comprises an AI channel, an AO channel, a DI channel and a DO channel which are in communication connection with the outside. The all-digital real-time simulation instrument comprises the three working modes of an idle mode, an opened loop mode and a closed loop mode. When the all-digital real-time simulation instrument operates in the closed loop mode, the function board and an outside power amplifier device are connected through a simulation signal line. The closed loop test process is based on a precision operation sequence, a mature multi-core processor industrial platform is selected and used as a computing platform core, a shared memory communication mode is based, and the simulation instrument is made to meet the demands of site testing from the aspects of computing performance, IO interfaces and the like through a network parallel computing technology.

Description

technical field [0001] The invention relates to a power system simulator, in particular to a portable full-digital real-time simulator for a power system. Background technique [0002] The power industry has been developing at a relatively high speed in recent years, the installed capacity of power generation has been increasing, and the scale of the power grid has become larger and larger. At the same time, various fast automatic control devices and protection devices are widely used in power systems. [0003] For control and protection devices, debugging, setting and other work are required in all stages of development, production and operation, and the usual test methods include open-loop testing and closed-loop testing. The open-loop test mostly uses equipment such as power system relay protection tester to output preset voltage / current, and observes the output characteristics of the control protection device, and then judges whether the device is working normally. The...

AI Technical Summary

Problems solved by technology

The closed-loop test can conduct a more comprehensive test on the function and performance of the control protection device, but the laboratory investment is relatively large, and the equipment cannot be tested on the operating site, which has certain limitations

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