Reactive coordination control method and system
By monitoring the voltage value of the new energy station and outputting adjustment instructions to SVG, the power oscillation problem caused by insufficient dynamic reactive support capacity of the new energy station is solved, and voltage stability and stable system operation are achieved.
CN119726778APending Publication Date: 2025-03-28YUNNAN POWER GRID CO LTD
0 Cites 1 Cited by
Patent Information
- Application Number
- CN202411553182.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-03-28
AI Technical Summary
Technical Problem
Power oscillation problems caused by insufficient dynamic reactive support capacity in new energy stations.
Method used
By obtaining the relevant voltage value of the new energy station, calculating the effective voltage value, determining whether the threshold conditions and integral count delay are met, outputting the adjustment command to SVG, and after receiving the SVG, the corresponding action is performed to support the stability of the voltage.
Benefits of technology
It effectively supports the stability of the voltage of the new energy station, avoids the repeated crossing of new energy units and power oscillation caused by a sharp drop in voltage, and improves the stable operation of the power system.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a reactive power coordination control method and system. The method comprises the following steps: acquiring a related voltage value of a new energy station; calculating a voltage effective value according to the related voltage value of the new energy station, judging whether the voltage effective value meets a threshold condition and integral counting delay or not, and outputting a corresponding adjustment instruction according to a judgment result; and transmitting the adjustment instruction to the SVG, setting the reactive power reference value to be the maximum value after the SVG receives the adjustment instruction, and sending out the maximum reactive power. According to the invention, the reactive power regulation capability of the SVG is fully utilized, so that the voltage in the station can reach a reasonable degree, repeated ride-through and power oscillation of a new energy unit caused by great voltage drop are avoided, and stable operation of a power system is facilitated. The control method is simple and reliable to implement, can be integrated into a background monitoring system of a new energy station as a functional module, can be flexibly put into and withdrawn as required, and is low in control cost and cost and good in control effect.
Need to check novelty before this filing date? Find Prior Art