Method capable of performing centralized monitoring on whole grid reactive power voltage state(s) by adopting automatic voltage control system

Abstract

The present invention discloses a method capable of performing centralized monitoring on whole grid reactive power voltage state(s) by adopting an automatic voltage control system, pertaining to the field of scheduling, management and controlling of a power grid. According to the method, alarm locking signal(s) of an AVC system and over-limit information found in operation are included into a closed-loop processing system, centralized and outstanding problem(s) are analyzed, abnormality causes and solutions are found, abnormality handling processes are constantly improved, and detailed and complete treatment processes are worked out. The method can improve the operation performance of the AVC system, further improve the control level of voltage reactive power, ensure the safe and stable operation of the power grid, guarantee the qualification of voltage(s) and power factor(s) of related node(s), minimize line reactive power transmission to the greatest extent and reduce the active power loss caused by unnecessary reactive power flow(s) in the power grid. The method can be widely used in the field of the scheduling, the management and the controlling of the power grid.

Description

technical field [0001] The invention belongs to the field of power grid dispatching management and control, and in particular relates to a method for centralized monitoring of the reactive voltage state of the whole network by using an automatic voltage control system. Background technique [0002] The automatic voltage control system of the power grid (Automatic Voltage Control, referred to as AVC) realizes the optimal control of voltage and reactive power compensation equipment through online analysis and calculation of data such as telemetry and signal of each node in the power system, so that the voltage pass rate, reactive power The control quantities such as power transmission and power factor meet the boundary conditions, improve the operation of the power system, reduce line losses, and improve the stability and economy of the power system. [0003] The main function of the grid automatic voltage control system (AVC) is to ensure that the voltage and gate power facto...

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Problems solved by technology

[0010] 2. Under normal working conditions, the operating data exceeds the limit many times: there are two main reasons for the operating data exceeding the limit. One is that the operating condition exceeds the adjustment ability of the control system, and the other is that the control strategy does not adapt to the specific operating conditions.

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