Voltage quality optimization treatment method based on chaos inheritance

Abstract

The invention discloses a voltage quality optimization treatment method based on chaos inheritance, and the method comprises the steps of collecting the three-phase active power and reactive power of the head end of a feeder line and the three-phase voltage of a bus through an SCADA system, and constructing a voltage optimization model according to the three-phase active power and reactive power and the three-phase voltage of the bus; calculating individual fitness according to the voltage optimization model, and generating an initial population by using a chaos genetic algorithm; performing selection, crossover and mutation operation on the initial population to obtain an evolutionary population; performing immigrant operation on the evolutionary population in combination with the fitness, and setting an iteration condition; if the iteration condition is not met, recalculating the individual fitness; otherwise, outputting a result, and obtaining an optimal solution of the voltage optimization model. The beneficial effects of the invention are that the optimization capability of individuals and the diversity of the individuals are improved through the chaos genetic algorithm, and the reactive loss reduction rate is improved at the same time.

Description

technical field [0001] The invention relates to the technical field of electric power, in particular to a voltage quality optimization control method based on chaotic genetics. Background technique [0002] The problem of voltage quality is a livelihood issue related to the quality of life of thousands of households. Eliminating "low voltage" is a basic requirement for power supply companies to fulfill their social responsibilities and fulfill their service purposes, and it is an important symbol for power supply companies to move towards lean management. The voltage quality of the distribution network is directly related to the safe and economical operation of the power system and the service life of electrical equipment. If the voltage is too low, it may cause a voltage collapse, cause a large-scale power outage, and reduce the operating capacity of the equipment, increase the energy consumption of the equipment, and burn out The user motor, causing the power of the lamp t...

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Problems solved by technology

[0004] At present, the measurement of the distribution network is mainly for 10kV lines, and it is difficult to collect the voltage on the user side. Therefore, at this stage, there is no intelligent control device for the voltage quality of the regional power grid oriented by the user voltage in China. The existing reactive power voltage and power quality management The devices are only distributed at a single point. There is neither a data uploading and collecting platform nor a comprehensive equipment control platform. The research on reactive power and voltage control of the power grid is still in the stage of independent, reactive power optimization control, and changing the tap of transformer voltage regulation, and the technologies of these systems are mastered by different units, lack of integration, the degree of information integration is not high, and the data interface is not enough Standardization, operators cannot grasp the real-time working conditions of power distribution operation, the operation is cumbersome, work efficiency is low, and the management level of power distribution dispatching operation is still low

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