WAMS dynamic data based network source coordination online monitoring and assessment system

Abstract

The invention discloses a WAMS dynamic data based network source coordination online monitoring and assessment system. The system comprises a primary frequency modulation monitoring module, an excitation system evaluation module, an AGC performance evaluation module, a wind power integration online monitoring module and a subsynchronous oscillation monitoring module. The primary frequency modulation response situations in daily and large-disturbance conditions are subjected to real-time statistics; a real-time operation state of a power generator, the low frequency oscillation suppression capability of a PSS of an excitation regulator, the operation alarming and limitation of the excitation regulator, the state and excitation pressure regulation of an excitation system and the like are calculated and assessed; indexes such as an AGC regulation rate, AGC regulation precision, AGC regulation time and the like of a power generator unit as well as grid-connection indexes such as an active power maximum variation of a wind power plant, high and low voltage ride through of a wind power unit, a frequency change of the wind power plant, voltage fluctuation of a grid-connection point and the like are calculated and analyzed; and a subsynchronous oscillation event is pre-warned. According to the system, auxiliary tools and convenient means are provided for power grid dispatching operation personnel to quickly locate network source coordination problems.

Description

technical field [0001] The invention belongs to the field of dynamic monitoring of power systems, and in particular relates to a network source coordination online monitoring and evaluation system based on dynamic data of a power grid wide area monitoring system (ie WAMS). Background technique [0002] In recent years, the national AC-DC UHV interconnected grid is taking shape, and the grid scale and power generation capacity have grown rapidly. The characteristics of the power grid are becoming more and more complex, the operation mode is changeable, the accidents of the power grid are widely spread, and the mechanism is complex. The regulation characteristics and operation status of the generator have an increasingly significant impact on the safe and stable operation of the system. [0003] At the same time, under the current technical means and management methods, there are some generators whose excitation and regulation system performance is not up to standard, or some ...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that network source coordination indicators cannot be fully and automatically analyzed and evaluated by establishing an online monitoring and evaluation index system for network source coordination based on WAMS dynamic data

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