Method for fast exchanging data between RTDS simulation instrument and gigabit network card

Abstract

The invention discloses a method for fast exchanging data between a RTDS simulation instrument and a gigabit network card. A switching module is arranged to switch a MGT optical fiber interface of a PB5 processor in the RTDS simulation instrument to the gigabit network card; the gigabit network card is connected with an external device through a gigabit cable; the switching module comprises a zero-copy data transmission unit and a PHY Ethernet physical layer interface; high-speed serial data output by the MGT optical fiber interface is transmitted to the PHY Ethernet physical layer interface by the zero-copy data transmission unit after being processed. The RTDS simulation instrument can be directly connected so as to be used without needing an external accessory; the external device only needs possess the gigabit network card and does not need other physical interfaces, so that the use is more convenient; 64 32-bit integers can be received or sent due to multiple channel number; each simulation step length can perform once receiving and sending with the MGT optical fiber interface since a communication rate is high.

Description

technical field [0001] The invention relates to the technical field of data exchange methods, in particular to a method for rapidly exchanging data between an RTDS emulator and a gigabit network card. Background technique [0002] RTDS is currently the most widely used electromagnetic transient real-time simulation tool. It can establish a power primary system simulation model and connect it with an external test device in a closed loop to verify the performance of the external test device. [0003] The interface between the external test device and RTDS mainly has two forms: the first one is the traditional analog quantity and switch quantity, and the second one is the network interface conforming to IEC61850. RTDS can provide these two interface forms, which can be easily connected with external test devices. [0004] However, if a large number of channels are required, the traditional analog and switch methods are greatly limited; if the communication speed is required t...

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Problems solved by technology

[0004] However, if a large number of channels are required, the traditional analog and switch methods are greatly limited; if the communication speed is required to be fast, the network interface of IEC61850 cannot meet the requirements

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