Intelligent reactive compensation capacitor monitoring and cyclic scheduling method

Abstract

The invention relates to an on-line monitoring and scheduling control technology, in particular to an intelligent reactive compensation capacitor monitoring and cyclic scheduling method. The method comprises the following steps: 1) acquiring current and voltage data of a capacitor through a current transformer and a voltage terminal wire; 2) transmitting the voltage and current data back to a comprehensive monitoring and scheduling terminal system through an intelligent data acquisition device by using an NBIOT Internet of Things; 3) analyzing the acquired voltage and current data through a comprehensive monitoring system, and finishing time matching storage; 4) completing the voltage and current data calculation and statistical analysis through a back-end intelligent algorithm after analysis and matching to obtain the switching rate and health state judgment of each intelligent capacitor; 5) enabling a scheduling system to judge and complete the capacitor scheduling among different capacitor cabinets according to the intelligent capacitor switching rate and the health state calculated by the monitoring system, and sending out scheduling and maintenance instructions. The method canprovide effective reference for intelligent capacitor switching monitoring and scheduling control of a power distribution network.

Description

technical field [0001] The invention belongs to the technical field of online monitoring and scheduling control, and in particular relates to an intelligent reactive power compensation capacitor monitoring and cycle scheduling method. Background technique [0002] In my country's 10kV low-voltage power supply and distribution system, power capacitors are usually used as reactive power generators to complete reactive power compensation, and at the same time complete the adjustment of the terminal voltage of the power distribution system to ensure power supply quality and improve equipment utilization. To a certain degree of protection and reduce loss. The compensation capacity of power capacitors is generally determined during power design. The usual method is to use 300kvar power capacitors for reactive power compensation for 1000kVA power distribution capacity, and do not configure reactive power compensation capacitors after the installation is completed. capacity is adjus...

AI Technical Summary

Problems solved by technology

However, due to different regions, different load properties and total quantities, there are many disadvantages and deficiencies in determining the capacity of reactive power compensation capacitors according to a fixed mode. Significance

[0003] The traditional capacitor configuration uses a fixed capacity to complete the compensation. Once the total configuration capacity is determined, it will not be adjusted in the subsequent operation process. It has the disadvantage of fixed compensation and cannot make full use of capacitor resources.

In some areas, due to the reduction of load capacity, a large amount of idle capacitor resources is wasted, and in some areas, due to the increase of load capacity or the change of nature, the capacitance compensation capacity is insufficient to a large extent, so that the reactive power compensation effect cannot be achieved.

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