A Method for Evaluating the Efficiency of Over-limit Control of Power Sections

Abstract

The invention discloses a method for evaluating the efficiency of power section overrun control, which relates to the field of power system operation and control. Under the current dispatch operation management mode, there is little relevant evaluation feedback on such operations of power dispatchers, and there is a lack of scientific and effective evaluation methods. The present invention includes the following steps: obtaining the model and operation mode data of the power grid within the evaluation period; judging whether there is a section exceeding the limit; The optimal control strategy; compare the ideal and actual scheduling strategy, and calculate the evaluation index. This technical solution evaluates according to the difference between the optimal control strategy and the actual control strategy by way of post-ideal rescheduling. This technical solution introduces the concept of post-evaluation in the process of cross-section limit control management, and quantitatively evaluates the effectiveness of the actual section control measures of the power dispatcher.

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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