A Real-time Low-Frequency Oscillation Analysis and Optimal Correction Control Method of Power System
A low-frequency oscillation, correction control technology, applied in the direction of reducing/preventing power oscillation, reducing flicker of AC network, etc., can solve the problem of not guaranteeing low-frequency oscillation, shortening the work process and setting time, improving voltage quality and safety and stability , the effect of reducing work intensity and stress
Active Publication Date: 2016-08-17
GUANGXI POWER GRID CORP +1
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Problems solved by technology
However, the investment of these devices cannot guarantee that low-frequency oscillations will not occur during system operation. How to correctly predict whether low-frequency oscillations will occur during power system operation, and how to correct and control methods based on power generation rescheduling have become domestic and foreign research hotspots in recent years.
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Embodiment
[0081] Embodiment: A power system low-frequency oscillation analysis and optimal correction control method based on real-time data, refer to figure 2 As shown, the steps are as follows:
[0082] Step 1, obtaining real-time CIM model file raw data report, e-format file raw data report and unit parameter raw data report;
[0083] Step 2, use the data interface to analyze the original data report, and convert the original data report of the CIM model file, the original data report of the e-format file and the original data report of the unit parameters into the power flow program, the low-frequency oscillation analysis program and the optimal correction control program. custom format data report;
[0084] Step 3, use the power flow program to perform power flow calculation on the converted real-time format data report;
[0085] Step 4, based on the power flow calculation results, use the low-frequency oscillation analysis program to calculate the static stability of the system...
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The invention relates to a power system real-time low frequency oscillation analysis and optimal correction control method. The real-time operation data report and formation unit parameter data report of a power grid are obtained through a data acquisition module, and a CIM model file original data report and an e format file original data report are analyzed through a data analysis module. The analyzed data reports are subjected to power flow calculation and static stability calculation through a calculation execution module by using a power flow program and a low frequency oscillation analysis program. If a static voltage stability region is insufficient, a low frequency oscillation analysis optimal correction control program is started to carry out adjustment correction. A calculation result report is outputted and is used for guiding operation staff to work. According to the power system real-time low frequency oscillation analysis and optimal correction control method, the establishment of the static and stable operation mode of the power grid becomes simple and easy, the working process and making time are shortened, the working strength and pressure of the operation staff is reduced, and the voltage quality and security and stability of power grid operation are improved comprehensively.
Description
technical field [0001] The invention relates to the field of low-frequency oscillation analysis and optimization of power systems, in particular to a power system real-time low-frequency oscillation analysis and optimal correction control method including optimal power flow constrained by damping ratio constraints and eigenvalue optimization. Background technique [0002] With the rapid growth of economy and population, people's demand for electric energy continues to increase, which makes the power system load continue to increase. Power system interconnection has many advantages, but is also prone to complex stability issues. At the same time, the power system has entered a new stage of large power grids, large units, and cross-regional networking, and these factors are likely to cause low-frequency oscillations. If the low-frequency oscillation is not effectively suppressed, it will cause more serious faults, large-scale power outages, and even system disconnection, resu...
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IPC IPC(8): H02J3/24
CPCH02J3/002H02J3/24
Inventor 邓秋荃阳育德孙艳李雨李凌覃秀君王德付刘文泰
Owner GUANGXI POWER GRID CORP