Electric power section off-limit control efficiency evaluation method

Abstract

The invention relates to an electric power section off-limit control efficiency evaluation method, belongs to the electric power system operation and control field and solves a problem of lack of scientificity and effectiveness of an evaluation method in the prior art as relevant feedback of evaluation on operation of an electric power dispatcher is rare. The method comprises steps that a power grid mode and operation mode data in an evaluation period are acquired; whether section off-limit occurs is determined, if yes, an ideal control strategy is obtained according to an established ideal control model, and the ideal control strategy is taken as an optimal control strategy; the ideal strategy and an actual scheduling strategy are compared, and an evaluation index is calculated. According to the method, an after-action ideal re-scheduling mode is employed, evaluation is carried out according to difference of the optimal control strategy and the actual control strategy. The method is advantaged in that post-evaluation concept is utilized on a section off-limit control management process, and quantitative evaluation on validity of electric power dispatcher actual section control measures is carried out.

Description

technical field [0001] The invention relates to the field of power system operation and control, in particular to a method for evaluating the control efficiency of power section overrunning. Background technique [0002] During the dispatching operation of the power system, it is necessary to formulate a series of power system operation rules to ensure the safe and stable operation of the power grid. my country's power system has developed into the era of large power grid interconnection and ultra-high-voltage AC-DC transmission. The system operation rules are complex. "Dimensionality reduction" control of complex power systems. The power control of key sections is the most important means to ensure the safe operation of the power grid, and the dispatching work related to it is also an important part of the real-time dispatching link. [0003] When the power system is in normal operation, the power of key sections can generally be controlled within the limited range through...

AI Technical Summary

Problems solved by technology

However, under the current dispatching operation management mode, relevant evaluation and feedback on such operations of power dispatchers are rarely carried out. Even if evaluations are made, most of them use case-by-case discussion, mainly based on empirical judgment, and lack scientific and effective evaluation methods.

[0004] At present, in the process of power dispatching, there is a lack of evaluation of the control efficiency of power section crossing limits. The reasons mainly include two aspects. Optimize the system operation mode and unit plan in advance to reduce the probability of cross-section violation; secondly, due to the complex operation rules of the power system, the relationship between various adjustment methods of power grid dispatchers and multiple control objectives is complicated, and manual experience alone cannot accurately Evaluate the adjustment efficiency of various adjustment means

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