Title:
ELECTROMAGNETIC TRANSIENT MODELING METHOD AND SYSTEM FOR HIGH-EFFICIENCY SYNCHRONOUS MACHINE, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/240844
Kind Code:
A1
Abstract:
An electromagnetic transient modeling method and system for a high-efficiency synchronous machine, and, a device. The method comprises: predicting, of a synchronous machine, a first rotor angular velocity, a first rotor angle, and a first current q component of and a first current d component of an armature current, establishing a first Norton circuit for simulating the synchronous machine, and solving at the same time a second Norton circuit after equivalent transformation and a network conductance matrix so as to obtain a three-phase voltage of a synchronous machine port; according to the three-phase voltage, obtaining a second current q component, a second current d component, a second rotor angular velocity and a second rotor angle; and by means of error-controlled iterative solving, determining an electromagnetic transient simulation calculation result of the synchronous machine. Rotation potential historical amounts and current amounts of a synchronous machine are avoided, so that the precision of a simulation calculation result is improved; and the calculation result can maintain the calculation efficiency of a dq0 model while achieving the precision of a phase domain model. Therefore, the method is suitable for use in power system electromagnetic transient simulation in practical engineering calculation.
More Like This:
Inventors:
SU YINSHENG (CN)
WU XIAOSHAN (CN)
TU SIJIA (CN)
YAO HAICHENG (CN)
LI BAO (CN)
ZHAO LIGANG (CN)
ZHOU TINGHUI (CN)
GAO QIN (CN)
HUANG GUANBIAO (CN)
ZHEN HONGYUE (CN)
XU YUAN (CN)
WANG CHANGXIANG (CN)
MAO ZHENYU (CN)
MOU XUEPENG (CN)
WU XIAOSHAN (CN)
TU SIJIA (CN)
YAO HAICHENG (CN)
LI BAO (CN)
ZHAO LIGANG (CN)
ZHOU TINGHUI (CN)
GAO QIN (CN)
HUANG GUANBIAO (CN)
ZHEN HONGYUE (CN)
XU YUAN (CN)
WANG CHANGXIANG (CN)
MAO ZHENYU (CN)
MOU XUEPENG (CN)
Application Number:
PCT/CN2022/122582
Publication Date:
December 21, 2023
Filing Date:
September 29, 2022
Export Citation:
Assignee:
ELECTRIC POWER RES INSTITUTE CHINA SOUTHERN POWER GRID (CN)
CHINA SOUTHERN POWER GRID COMPANY LTD (CN)
CHINA SOUTHERN POWER GRID COMPANY LTD (CN)
International Classes:
H02P21/14
Foreign References:
| CN115021638A | 2022-09-06 | |||
| CN113688540A | 2021-11-23 | |||
| CN104079228A | 2014-10-01 | |||
| CN109063408A | 2018-12-21 | |||
| CN111697889A | 2020-09-22 | |||
| CN113435013A | 2021-09-24 | |||
| US20200185980A1 | 2020-06-11 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
Download PDF: