Dynamic reactive power compensation device control strategy verification system

A technology of compensation device and control strategy, applied in reactive power compensation, reactive power adjustment/elimination/compensation, circuit devices, etc. The effect of simple and convenient debugging, shortening the cycle of debugging and departure, and good scalability

Pending Publication Date: 2019-04-12
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Judging from the network-related performance tests of dynamic reactive power compensation devices that have been carried out, most of the dynamic reactive power compensation devices have imperfect / missing control strategies, or the control effect corresponding to the actual parameter setting value cannot achieve the expected effect, which is urgently needed A fast, economical and effective method to verify the correctness of its control strategy and the rationality of parameter setting values
[0005] The existing methods for verifying the correctness of the control strategy have the following deficiencies: 1. There are many operating components involved in the field test, the test conditions are complicated, and there are many influencing factors, resulting in a long cycle for finding and solving problems; 2. The same There are large differences in the test results of the model dynamic reactive power compensation device; 3. Different field technicians debug the same type of dynamic reactive power compensation device, which may cause large differences in test results due to lack of control strategies or differences in parameter setting values. The cause of the problem It is often difficult to find; 4. The power factor control capability of the dynamic reactive power compensation device (that is, the comprehensive control of voltage and reactive power) is restricted by many factors such as the grid environment, which greatly prolongs the test cycle or cannot be tested on site

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  • Dynamic reactive power compensation device control strategy verification system
  • Dynamic reactive power compensation device control strategy verification system
  • Dynamic reactive power compensation device control strategy verification system

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Embodiment Construction

[0032] The present invention is described below based on examples, but the present invention is not limited to these examples. In the following detailed description of the invention, some specific details are set forth in detail. The present invention can be fully understood by those skilled in the art without the description of these detailed parts. In order not to obscure the essence of the present invention, well-known methods, procedures, procedures, components and circuits have not been described in detail.

[0033] Additionally, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0034] Meanwhile, it should be understood that in the following description, "circuit" refers to a conductive loop formed by at least one element or sub-circuit through electrical connection or electromagnetic connection. When an element or circuit is said to be "connected to" another eleme...

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Abstract

The invention discloses a dynamic reactive power compensation device control strategy verification system. The system comprises a main circuit simulation module, a new energy resource power station and power grid simulation module, an optical fiber conversion interface, a level conversion interface and a human-machine interaction interface. Various complicated power grid operation conditions are simulated by the dynamic reactive power compensation device control strategy verification system, and the feedback signal of a device link system can be given out according to requirements, so that thewiring debugging is simple and convenient; various control strategies of a dynamic reactive power compensation device can be verified, and offline optimization can be carried out on the control performance of the dynamic reactive power compensation device, so that the debugging and departure period before field operation is greatly shortened, offline verification and offline parameter optimization of the control strategies of the dynamic reactive power compensation device are realized, and the problem that operation performance optimization is needed for a part of new energy resource power stations in which the dynamic reactive power compensation device is put into operation but parameter online optimization cannot be carried out because of the restricted condition of site operation is solved.

Description

technical field [0001] The invention belongs to the field of new energy access and control, and provides a control strategy verification system for a dynamic reactive power compensation device. Background technique [0002] my country's wind farms / photovoltaic power plants mostly adopt the development model of "large-scale centralized development, high-voltage long-distance transmission". increasingly prominent. The reactive power compensation device can improve the dynamic support capacity of wind power / photovoltaic power, and is beneficial to the fault recovery of the power grid. However, from the actual operation situation, there are many problems in the control performance of the dynamic reactive power compensation device of the new energy power station, especially the imperfect basic control strategy, lack of low voltage ride through and abnormal situation blocking control strategy, which seriously affects the safe and stable operation of the power grid. The analysis o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18H02J13/00
CPCH02J3/18H02J13/00019H02J2203/20Y04S10/22Y04S40/124Y02E40/30Y02E40/70Y02E60/00
Inventor 张金平樊熠李庆贺敬张梅陈子瑜唐建芳朱琼锋王顺来程鹏李建立苗风麟李春彦
Owner CHINA ELECTRIC POWER RES INST
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