Title:
LINEAR ALGORITHM-BASED ELECTROMECHANICAL TRANSIENT SIMULATION METHOD FOR POWER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/174555
Kind Code:
A1
Abstract:
Disclosed in the present invention is a linear algorithm-based electromechanical transient simulation method for a power system, comprising the following steps: A. initializing parameters of a power system; B. utilizing a linear algorithm to calculate the power flow distribution of the power system; C. calculating the angular acceleration, angular velocity, rotor angle and frequency of each generator in a next frame; D. performing frequency adjustment; E. performing excitation adjustment; F. calculating a rotary electromotive force of a generator according to the rotor angle and frequency of the generator in the next frame; G. calculating the average frequency fW,n+1 of the whole grid according to the frequency fi,n+1 of each generator; H. introducing the average frequency fW,n+1 to each node and calculating a reactance and electrical susceptance corresponding thereto, substituting the rotary electromotive force into a corresponding generator, and finally calculating new matrice of all of the nodes; I. re-entering step B. The present invention overcomes the defects of traditional simulation methods, has no iteration, has a fast calculation speed, high precision and minor errors, and truly reflects the variation characteristics of power grids.
Inventors:
DENG HONGWEI (CN)
Application Number:
PCT/CN2019/077729
Publication Date:
September 19, 2019
Filing Date:
March 12, 2019
Export Citation:
Assignee:
DENG HONGWEI (CN)
International Classes:
H02J3/38
Foreign References:
| CN108365629A | 2018-08-03 | |||
| CN106026083A | 2016-10-12 | |||
| CN106451456A | 2017-02-22 | |||
| CN102593820A | 2012-07-18 | |||
| CN103956741A | 2014-07-30 | |||
| US20160329714A1 | 2016-11-10 |
Attorney, Agent or Firm:
CHENGDU DINGFENG PATENT OFFICE (GENERAL PARTNER) (CN)
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