Machine-net dynamic safety system and method based on actual measurement

Abstract

The invention discloses an actual measurement based machine network dynamic safety assessment system and the method thereof, which belong to the field of measurement and dynamic stable control techniques of power systems. The technical proposal is as follows: the system comprises the following six parts: a microcomputer machine network parametric comprehensive measurement device, a remote management systems, a background analytical software system, a machine network coupling modeling system, a power grid data information platform and a dynamic safety assessment system. The method comprises the following steps: arranging the microcomputer machine network parametric comprehensive measurement device in a power plant, collecting field data of the steam turbine, the power generator and the dynamic process of the power grid, transmitting the data to the data center via the network or the communication means, carrying out a series of analysis processing of the data to obtain the machine network dynamic coupling model and parameters, and completing the dynamic safety assessment and the time-domain simulation and verification of the power system. The system and the method establish the close relation between the dynamic safety and stability of the power system and the dynamic process stability of the power generator set and the power grid and provide the guarantee for the machine network coordinative operation of the power system.

Description

System and method for dynamic security assessment of machine-network based on actual measurement technical field The invention belongs to the technical field of measurement and dynamic stability control of electric power systems, and in particular relates to a system and method for dynamic safety evaluation of a machine network based on actual measurement. Background technique The safe and stable operation of the power system is a major issue related to national security and people's lives. During the operation of the power system, it is often possible to be interfered by various natural or human factors. Some interference amplitudes are small or quickly attenuate, and have little impact on the system operation; some interference may cause serious consequences, resulting in system stability damage. Damage to equipment or cause widespread power outages. After the power system is subjected to a small disturbance, if the dynamics of the regulator and components are considere...

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Problems solved by technology

Considering the coupling characteristics of the dynamic process of the machine network, comprehensively measuring the dynamic parameters of the machine network, and evaluating the dynamic security and stability of the power system based on the measured data, there is no related research at home and abroad; Increasing impact of dynamics on power system stability

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