Three-phase imbalance governance method based on cloud service system

Abstract

The invention provides a three-phase imbalance governance method based on a cloud service system. The three-phase imbalance governance method comprises the following steps of: acquiring current data and voltage data in a power grid; transmitting the current data and the voltage data to the cloud service system; processing the current data and the voltage data by the cloud service system so as to generate a three-phase imbalance governance scheme library; and accessing corresponding capacitors and inductors to a circuit according to the three-phase imbalance governance scheme library. On the basis of recent data, a three-phase imbalance governance scheme is made through the cloud service system; therefore, the governance effect is ensured; switching of the capacitors and the inductors for many times is also avoided; the service lives of the capacitors and the inductors are prolonged; and the accuracy degree of the three-phase imbalance governance scheme is improved through normalization treatment of acquired data and calculation of the imbalance degree.

Description

technical field [0001] The invention relates to the field of three-phase unbalance control, in particular to a method for three-phase unbalance control based on a cloud service system. Background technique [0002] Three-phase unbalance: The three-phase unbalance problem will cause additional heating of the rotating motor, resulting in misoperation of various protection devices with negative sequence components as the starting component, and shortening the life of electrical equipment; low equipment load rate will cause Waste of equipment capacity resources. But for a long time, the low-voltage system has almost no effective means to make reasonable adjustments except to distribute the load as reasonably as possible. [0003] Three-phase unbalance has always been one of the main problems plaguing power supply units, resulting in a substantial increase in transformer loss and line loss, causing greater adverse effects on the operation of low-voltage power grids and electrica...

AI Technical Summary

Problems solved by technology

[0002] Three-phase unbalance: The three-phase unbalance problem will cause additional heating of the rotating motor, resulting in misoperation of various protection devices with negative sequence components as the starting component, and shortening the life of electrical equipment; low equipment load rate will cause Waste of equipment capacity resources

However, for a long time, the low-voltage system has almost no effective means to make reasonable adjustments except to distribute the load as reasonably as possible.

[0003] Three-phase unbalance has always been one of the main problems plaguing power supply units, resulting in a substantial increase in transformer losses and line losses, causing greater adverse effects on the operation of low-voltage power grids and electrical equipment

[0004] The existing three-phase unbalance control is generally carried out by improving the transformer or adjusting the electrical appliances connected to each phase, the adjustment efficiency is low, and the control effect is poor

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