Power grid simulation system and method
A power grid simulation, power grid technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as inability to simulate power grid faults
Inactive Publication Date: 2014-11-26
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a power grid simulation system and method to solve the technical problem that the existing simulation scheme cannot perform accurate fault simulation on the whole power grid
Method used
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Embodiment 1
[0064] This embodiment is based on the actual configuration information of the Beijing power grid, and according to the above method, a Beijing power grid simulation system that truly reflects the actual equipment and connection relationship of the Beijing power grid is established, and through the Beijing power grid simulation system, the metal single-phase ground fault situation of the power grid Simulation analysis of user power quality under the following conditions. In this embodiment, the simulation system is realized by improving and optimizing the existing ADPSS (Advanced Digital Power System Simulator, a power system all-digital simulation device).
[0065] It can be seen from the simulation results that:
[0066] 1) When the 220kV hub line in the partition fails (such as image 3 As shown, the 220kV Lv-Lu line fault Lucheng bus B-phase voltage measured by the on-site monitoring point is input to the simulation monitoring point of the Beijing power grid simulation sy...
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The invention discloses a power grid simulation system and method. The system comprises a creating module, a parameter input module, an operation module and a simulation output module. The creating module is used for creating a power distribution network simulation model according to a power grid. The parameter input module is used for inputting parameter information into corresponding simulation monitoring points in the power distribution network simulation model, wherein the parameter information is monitored by one or more on-site monitoring points, and the parameter input module is used for selecting one or more data sampling points in the power distribution network simulation model and setting output types of electrical parameters of the data sampling points. The operation module is used for operating the power distribution network simulation model according to the parameter information of the simulation monitoring points. The simulation output module is used for outputting the electrical parameters of the data sampling points of the power distribution network simulation model in the operation process. Electromagnetic transient analysis and long-time voltage drop monitoring can be performed on the power grid, real-time typical fault analog simulation can be performed, and a voltage sag region and a voltage transient state value affecting a user can be estimated.
Description
technical field [0001] The present invention relates to the field of power system simulation, in particular to a power grid simulation system and method. Background technique [0002] With the development of society and economy, the power grid has put forward higher requirements for power supply reliability and power quality. [0003] The voltage drop caused by a fault somewhere in the power system will propagate to each voltage level through the transmission network, and users in a wide range may be affected by the voltage drop. Generally, the electromagnetic transient simulation calculation of voltage drop is used to study the voltage drop caused by a fault in the system, so as to identify and find the fault point area where the relevant sensitive load cannot work normally. [0004] Most of the current solutions use the existing power grid simulation software (such as: PSCAD / EMTDC or Matlab / Simulink) to perform electromagnetic transient simulation for a section of lines o...
Claims
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Login to View More IPC IPC(8): G06F17/50
CPCY02E60/00
Inventor 丁屹峰孙健王健钱叶牛李伟
Owner STATE GRID CORP OF CHINA