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Power system inertia security domain evaluation method and system, electronic equipment and readable storage medium

A power system and security domain technology, applied in the field of power system operation and scheduling, can solve the problems of inability to judge the inertia value, lack of inertia safety judgment basis, etc., and achieve the effect of quickly evaluating the system inertia level safety and speeding up the solution speed.

Active Publication Date: 2021-03-02
HUNAN UNIV
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Problems solved by technology

[0004] However, there is still a lack of effective inertia safety judgment basis in the current power system dispatching operation process, which makes it impossible for relevant staff to judge the level of the inertia value after knowing the system rotational inertia

Method used

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  • Power system inertia security domain evaluation method and system, electronic equipment and readable storage medium
  • Power system inertia security domain evaluation method and system, electronic equipment and readable storage medium
  • Power system inertia security domain evaluation method and system, electronic equipment and readable storage medium

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Embodiment

[0065] In view of the above architecture, the performance parameters of the power system in the embodiment of the present invention at least include the potential limit predictable faults in the estimated research scenario and the overall frequency modulation speed of the system, and then the limit predictable faults in the research scenario are obtained from the key N-2 fault concentration The overall frequency regulation speed of the system can be obtained by screening the one with the largest active disturbance power, based on the rotating reserve capacity of the generator set and the speed regulation speed, the regulation space and regulation speed of the frequency limit control (FLC) of the DC transmission line, and the corresponding limit predicted faults The stability control scheme is estimated; the obtained limit expected fault and the overall system frequency modulation speed are substituted into the power system inertia safety region evaluation model, and the inertia ...

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Abstract

The invention discloses an electric power system inertia security domain evaluation method and system, electronic equipment and a readable storage medium, and the method comprises the steps: obtainingan electric power system inertia security domain evaluation model, wherein the electric power system inertia security domain evaluation model takes inertia security domain area maximization as an optimization target function, and the frequency stability security constraints are at least included; obtaining a performance parameter of a to-be-evaluated power system, and substituting the performanceparameter into the power system inertia security domain evaluation model to carry out model solving so as to obtain an inertia security domain of the power system. According to the invention, the obtained inertia security domain of the power system provides a judgment standard for power system operation and scheduling personnel to analyze the safety and adequacy of inertia of the system in the operation process.

Description

technical field [0001] The invention belongs to the technical field of power system operation scheduling, and in particular relates to a power system inertia safety domain evaluation method, system, electronic equipment and a readable storage medium. Background technique [0002] With the continuous integration of asynchronous power sources such as wind power, photovoltaics, and direct current, the number and capacity of converters connected to the power grid have risen rapidly, making it gradually develop into a power system with a high proportion of converters. Since non-synchronous components such as new energy and direct current are connected to the grid through power electronic converters, their transmission power is decoupled from the grid frequency under conventional control, and inertia support cannot be actively provided to the system under active power disturbances. The full chain and large-scale grid connection of "source-network-load" converters will replace a la...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06F30/20G06Q50/06G06F111/04
CPCG06Q10/06393G06F30/20G06Q50/06G06F2111/04Y04S10/50
Inventor 文云峰林晓煌李元臣
Owner HUNAN UNIV
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