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Electromagnetic transient simulation device for alternating-current and direct-current power system

An electromagnetic transient simulation and power system technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as simulation speed bottlenecks and limited number of processors, so as to improve calculation speed and meet data delay requirements , to ensure the effect of calculation accuracy

Active Publication Date: 2020-08-28
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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Problems solved by technology

On the one hand, the number of processors that can be carried by the simulation device is limited after all, and it is impossible to increase without limit; on the other hand, the mutual communication between a large number of parallel processors will become the bottleneck of the simulation speed

Method used

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  • Electromagnetic transient simulation device for alternating-current and direct-current power system
  • Electromagnetic transient simulation device for alternating-current and direct-current power system
  • Electromagnetic transient simulation device for alternating-current and direct-current power system

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Embodiment Construction

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0036] see figure 1 , is a schematic structural diagram of an electromagnetic transient simulation device for an AC / DC power system provided by an embodiment of the present invention, including: a large-step simulation system 11, a small-step simulation system 12, a fast data interaction module 13, and a connection module 14;

[0037] The large-step simulation system 11 is used to simulate the AC simulation system according to the first simulation step using a pres...

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Abstract

The invention discloses an electromagnetic transient simulation device for an alternating-current and direct-current power system. The electromagnetic transient simulation device comprises a large-step simulation system, a small-step simulation system, a rapid data interaction module, a connection module, and a rapid data interaction module. The large-step simulation system is used for simulatingan alternating current simulation system according to the first simulation step length by adopting a preset electromagnetic transient simulation model; the small-step simulation system is used for simulating a direct-current system composed of the high-frequency power electronic switching device according to the second simulation step length by adopting a pre-established FPGA high-frequency simulation model; the connection module is used for connecting a direct-current system with an alternating-current system; the connection module is a transformer or transmission line interface model; and the rapid data interaction module is connected with the large-step simulation system and the small-step simulation system, and is used for carrying out simulation data interaction on the large-step simulation system and the small-step simulation system. Therefore, the electromagnetic transient simulation speed of the alternating-current and direct-current large power grid can be effectively improved, and the rapid simulation requirement and the precision requirement of a large-scale power system are met.

Description

technical field [0001] The invention relates to the technical field of power system simulation, in particular to an electromagnetic transient simulation device for an AC and DC power system. Background technique [0002] With the interconnection of regional power grids, modern power systems continue to expand in scale, and high-power power electronic equipment such as HVDC transmission and FACTS are widely used in power systems, making the components of power systems increasingly complex, and the dynamics of different time scales. The interweaving of characteristics also poses new challenges to the electromagnetic transient simulation technology of power systems. [0003] Although the electromagnetic transient simulation method has very high simulation accuracy, because it is based on the calculation principle of three-phase instantaneous quantities, the simulation scale and simulation speed are greatly limited. In order to improve the calculation speed of the electromagnet...

Claims

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Application Information

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IPC IPC(8): G05B17/02
CPCG05B17/02
Inventor 翟鹤峰赵利刚洪潮王长香周挺辉甄鸿越黄冠标吴小珊徐原
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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