Power spring based on fuzzy control rule factor, power supply circuit structure and algorithm

Abstract

The invention relates to a power spring based on a fuzzy control rule factor, which comprises a main control circuit, a control switch circuit, a voltage regulating and inverting circuit, a filteringcircuit, a reactive power compensation switching switch, a charging and discharging control circuit, a voltage transformer, a current transformer, a compensation capacitor bank, a reactor group and astorage battery pack, wherein the compensation capacitor back and the reactor group are electrically connected with the reactive power compensation switching switch through the filtering circuit, thestorage battery pack is electrically connected with the voltage regulating and inverting circuit through the charging and discharging control circuit, and the voltage regulating and inverting circuitis further electrically connected with the control switch circuit through the filtering circuit. On the one hand, the power spring based on the fuzzy control rule factor greatly simplifies and standardizes the circuit structure and the circuit connection relation, and is convenient for improving the working efficiency of circuit maintenance and management and reducing the work cost; and on the other hand, the power spring equipment is high in circuit compensation and regulation ability and high in operation control accuracy, and can effectively realize the compensation for the power grid on multiple parameters such as the voltage, current and power factor.

Description

technical field [0001] The invention relates to an electric power compensation and circuit equipment structure and control prevention, belonging to the technical field of power transmission and transformation equipment. Background technique [0002] In the microgrid or distribution network, the voltage fluctuation of the grid is extremely frequent, especially in the microgrid, the proportion of electricity generated by renewable energy is gradually increasing, and the intermittent nature of renewable energy will cause voltage fluctuations in the grid. A certain self-regulation ability, but the regulation ability of the microgrid powered by renewable energy is very weak. For some electrical equipment, the fluctuation of voltage will have an adverse impact on it, and even damage the voltage Extremely sensitive key electrical equipment, such as medical equipment used to monitor the status of patients in hospitals, has very strict requirements for input voltage, and voltage fluc...

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Problems solved by technology

[0004] However, the controller design of related electric springs in the current literature basically stays in the field of traditional control theory, and it is necessary to build a circuit model including grid supply, circuit load type, parameters of each part of the circuit and inverter parameters. Model analysis, and then calculation to obtain the specific parameters of the controller, such as PID control and quasi-PR control, but for the application of electric springs in real life, the realization is not realistic, because it is impossible to carry out The parameters of the actual circuit are calculated to obtain the appropriate controller parameters. Moreover, in actual production and life, some circuit parameters are difficult to measure or cannot be measured or are time-varying, so the disadvantages of traditional controllers appear

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