Particle swarm optimization algorithm based thermal generator set primary frequency modulation parameter optimization method

Abstract

The invention provides a particle swarm optimization algorithm based thermal generator set primary frequency modulation parameter optimization method, and relates to the technical field of thermal generator set primary frequency modulation. According to the invention, an optimization algorithm is introduced into primary frequency modulation control parameter configuration, and mathematical modeling, constraint conditions, an objective function and optimization procedures of the particle swarm optimization algorithm based thermal generator set primary frequency modulation parameter optimization method are provided. Primary frequency modulation dead zone and rotating speed diversity factor parameter configuration taking that the additional economic expenditure required by increasing the coal consumption in the process of primary frequency modulation to be minimum, that is, the primary frequency modulation control economy, as an objective and taking the stability as a constraint is realized, thereby positively responding to the policy of energy conservation and emission reduction under the premise of ensuring the power grid frequency security, and exploring the economy in primary frequency modulation.

Description

technical field [0001] The invention relates to the technical field of primary frequency regulation of thermal power generating sets, in particular to a method for optimizing primary frequency regulation parameters based on a particle swarm algorithm. Background technique [0002] Electric energy has the characteristic that it cannot be stored in large quantities, and the production and use of electric energy are intelligently completed at the same time. But in the power system, the load always changes, and the direct factor of the frequency deviation caused by the load change. The loads in the power system can be divided into deterministic loads and random loads. Due to the unpredictability of random loads, primary frequency regulation is needed as a supplement to secondary frequency regulation, so that the generator set can quickly respond to the frequency brought by random load changes. Changes in response to action, so the generator sets in the power system are required...

AI Technical Summary

Problems solved by technology

[0005] When the actual power plant puts in a frequency regulation, there are some concerns: it is worried that the frequency regulation will not be conducive to the unit grabbing load. When the grid frequency is high, the opening of the regulator door will be automatically closed to reduce the load when the frequency regulation is put in. When the grid frequency fluctuates, it needs to be adjusted. The opening of the valve affects the stability of the unit

At the same time, in current power plants, it is customary to set the same primary frequency regulation parameters for all types of units. When setting parameters, the purpose of setting parameters is to stabilize the unit output and the assessment results within the range specified by the state. In this case, the economical value of primary frequency regulation sex is not the best

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