Stochastic time-delay stability analysis method for power system
An analysis method and power system technology, applied in the direction of electrical digital data processing, data processing applications, instruments, etc., can solve problems such as modeling and analysis of system time-delay stability without consideration
Active Publication Date: 2018-12-18
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In view of this, the purpose of the present invention is to solve the problems caused by the modeling and analysis of system time-delay stability without considering random excitation in the prior art, and propose a random time-delay stability analysis of power system considering wind power grid-connected Method and device
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0085] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0086] Detailed exemplary embodiments are disclosed below. However, specific structural and functional details disclosed herein are merely for purposes of describing example embodiments.
[0087] It should be understood, however, that the invention is not limited to the particular exemplary embodiments disclosed, but covers all modifications, equivalents, and alternatives falling within the scope of the disclosure. Throughout the description of the figures, the same reference numerals denote the same elements.
[0088] Also, it should be understood that as used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. Also it will be understood that when a component or unit is referred to as being “connected” or “coupled” to another component or unit, it can be directly connected or coupled to the other component or ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an electric system random time delay stability analysis method and device. The device comprises a data acquisition module, a state equation construction module, a time delay upper limit solving module and a result output module, wherein the data acquisition module is used for collecting network structure parameters, system flow values, generator power angle and rotation speed and wind speed; the state equation construction module is used for constructing a state equation of an interconnection system; the time delay upper limit solving module is used for constructing a stability criterion of the interconnection system under random excitation and determining change information of system time delay stability upper limit; and the result output module is used for outputting system time delay stability upper limit result. According to the electric system random time delay stability analysis method and device, the problem of not considering the influence of random excitation on the system time delay stability modeling and analysis in the prior art can be solved, and correctness and effectiveness of the stability analysis of an electric system can be ensured under different working conditions.
Description
technical field [0001] The invention relates to the technical field of power system stability analysis, in particular to the power system random time-delay stability analysis technology. Background technique [0002] The Wide-Area Measurement System (WAMS) has brought new opportunities for the global stability analysis, operation optimization and coordinated control of the power system. However, WAMS has obvious time lags. The effect of the controller will have adverse effects, which has become an important cause of system instability and controller performance deterioration. Therefore, analyzing the time-delay stability of the power system and determining the maximum time-delay that the power system can withstand is of great significance to ensure its stable operation. [0003] At present, the analysis methods for the time-delay stability of the power system mainly include the frequency domain method and the time domain method: the frequency domain method judges the stabil...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50G06Q50/06
Inventor 马静李益楠邱扬康胜阳
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)