A Distributed Test System of Distribution Network Based on rtds

Abstract

The invention relates to an RTDS-based distribution testing system of a distributed network. A simulation interface subsystem is connected with an RTDS device to realize acquisition of small voltages outputted by the RTDS and the input / output of switching values. Each of a plurality of simulation terminals is connected with a corresponding distribution terminal to simulate a high-voltage transformer to output a secondary voltage and a secondary current and simulate a high-voltage switch to output a position signal, and collect tripping and opening-closing switching values of the distribution terminals. The simulation interface subsystem and all the simulation terminals carry out data interaction by wireless transmission. On the basis of the RTDS, the output function of the simulation data is distributed to a plurality of synchronous-operation simulation terminals, and each simulation terminal is arranged at the installation position of the distribution terminal. On the one hand, simulation data from the RTDS are received and outputted; and on the other hand, response information of a to-be-tested distribution terminal is received and is fed back to the RTDS, thereby realizing closed-loop testing of a distribution automation system under a real-time communication network impact.

Description

technical field [0001] The invention relates to a distribution network distributed testing system based on a real-time digital simulator (RTDS), belonging to the technical field of power system testing. Background technique [0002] The location and isolation of distribution network faults and the restoration of power supply in non-faulty areas are important functions of distribution automation systems, and are also the key tasks of distribution network testing. At present, most of the tests on distribution automation systems are completed in the way of sub-system and centralized testing. [0003] Subsystem testing refers to testing each part of the distribution automation system; centralized testing refers to the centralized installation of distribution automation system-related equipment in the laboratory, and the short-term Interconnect with wired transmission network, use RTDS or special distribution network simulation system to simulate distribution network failure, an...

AI Technical Summary

Problems solved by technology

The power distribution communication system adopts a layered and distributed structure, and according to factors such as detour ability, survivability, and economy, it adopts a mixed use of various communication methods such as optical fiber private network, distribution line carrier, and wireless, which has a certain degree of complexity.

[0005] Since the impact of the actual communication network performance on the overall performance of the distribution automation system is not considered, this subsystem and centralized test scheme cannot fully verify the performance of the distribution automation system

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