In-place acquisition and control public terminal with port sampling rate being independently configured and method

Abstract

The invention discloses an in-place acquisition and control public terminal with the port sampling rate being independently configured and a method. Mutually independent decoupling sampled values are provided for different types of protection control devices, each set of sampling circuits perform synchronous sampling according to a respectively independent sampling rate, and each set of sampled values are sent and shared through a corresponding network port. Sampling interruption and synchronization among different acquisition and control public terminals are realized through integral second equal interval equalization control and time-keeping based on homologous synchronization messages, dependency for an external block does not exist, and the sampling is ensured to be stable and reliable.

Description

technical field

[0001] The invention belongs to the field of electric power system automation, and relates to an on-site installation of electric secondary equipment, in particular to an on-site collection and control public terminal and method with independently configurable port sampling rates. Background technique

[0002] With the continuous development of the application of computer and microelectronics technology in the power industry, and the improvement of the manufacturing level of power secondary equipment, the power secondary equipment of substations has gradually developed from the centralized installation in the control room to the local installation of outdoor primary equipment. . The power secondary equipment installed on site includes relay protection, measurement and control, merging unit and intelligent terminal. These devices use optical fiber ring network for communication. The status information of the primary and secondary equipment of the substation is...

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