A method of three-phase unbalance governance based on cloud service system
A cloud service and balancing technology, applied in transmission systems, multiphase network asymmetry reduction, multiphase network elimination/reduction asymmetry, etc., can solve the waste of equipment capacity and resources, low equipment load rate, three-phase imbalance, etc. problem, to ensure the effect of governance, avoid multiple switching, and improve the accuracy
Inactive Publication Date: 2018-07-13
STATE GRID JIBEI ENERGY SAVING SERVICE +1
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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
Method used
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[0051] Attached below Figure 1-2 Be specific.
[0052] figure 1 It shows a method for managing three-phase imbalance based on the cloud service system of the present invention.
[0053] The method for three-phase unbalance governance based on the cloud service system of the present invention comprises the following steps:
[0054] S1: Collect current data and voltage data in the power grid;
[0055] S2: transmit the current and voltage data to the cloud service system;
[0056] S3: The cloud service system processes the current and voltage data to generate a library of three-phase unbalance control solutions;
[0057] S4: Connect the corresponding capacitors and inductors into the circuit according to the three-phase unbalance control scheme library.
[0058] Such as figure 2 As shown, the cloud service system includes a cloud data storage layer 11, a cloud data processing layer 12 and a cloud service driver layer 13; the cloud data storage layer 11 includes a disk arr...
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The present invention provides a three-phase imbalance control method based on a cloud service system, comprising the following steps: collecting current data and voltage data in the power grid; transmitting the current and voltage data to the cloud service system; the cloud service The system processes the current and voltage data to generate a three-phase unbalance control solution library; according to the three-phase unbalance control solution library, the corresponding capacitors and inductors are connected to the circuit. Through the cloud service system, based on the latest data, three unbalanced governance plans are formulated, which ensures the governance effect, avoids multiple switching of capacitors and inductors, prolongs the life of capacitors and inductors, and standardizes the collected data The processing and calculation of unbalanced degree have improved the accuracy of the three unbalanced governance schemes.
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...
Claims
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IPC IPC(8): H02J3/26H02J13/00H04L29/08
CPCY02E40/50
Inventor 王虎何荣富张晓毅
Owner STATE GRID JIBEI ENERGY SAVING SERVICE