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UHV AC/DC Power Grid Simulation Platform and Construction Method

A simulation platform, AC and DC technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems such as insufficient functional coordination ability, irregular data and model maintenance and release, insufficient digital-analog hybrid simulation ability, etc.

Active Publication Date: 2021-04-23
CHINA ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a UHV AC / DC power grid simulation platform and a construction method to overcome the existing simulation technology's lack of functional synergy, lack of digital-analog hybrid simulation capability, digital hybrid simulation capability, software, One or more of issues such as data and model maintenance and release irregularities

Method used

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  • UHV AC/DC Power Grid Simulation Platform and Construction Method
  • UHV AC/DC Power Grid Simulation Platform and Construction Method
  • UHV AC/DC Power Grid Simulation Platform and Construction Method

Examples

Experimental program
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Effect test

specific Embodiment approach 1

[0113] Specific implementation mode 1: Formulation of Operational Control Strategy of East China Power Grid

[0114] Aiming at the problem of multiple DC commutation failures caused by AC faults in the East China Power Grid and threatening system security in the case of large-scale hydropower generation in summer, a special research was carried out using a new generation of simulation platform. Firstly, based on the digital-analog simulation system of NGSP, a digital-analog model that is completely consistent with the actual control and protection device composition and parameters of the East China Power Grid DC system was established; then, by comparing with the actual experimental waveform, the simulation of the primary circuit of the electromagnetic model in NGSP was calibrated Accuracy; finally, use the calibrated primary circuit electromagnetic model and digital simulation results to complete the overall parameter calibration of the DC model in digital simulation, and re...

specific Embodiment approach 2

[0115] Specific implementation mode 2: Enhancement of Tianzhong DC transmission capacity

[0116] Aiming at the limited capacity of the Tianzhong DC transmission project, a new generation of simulation platform was used to carry out research, accurately analyzed the grid's ability to accept DC, and formulated operational control measures to increase the DC transmission capacity by about 1.4 million kilowatts in total.

specific Embodiment approach 3

[0117] Specific implementation mode 3: Greatly improve the depth of rolling analysis of large power grids

[0118] Apply a new generation of simulation platform to carry out large-scale joint calculations of power grids. Relying on the improvement of calculation efficiency, the breadth and depth of simulation analysis have been greatly improved. The basic operation modes of simulation have been increased from 100 to 400, and detailed analysis of seasonal hydropower and wind power According to various working conditions that may actually appear, such as large loads and small loads, load peaks and low valleys, and equipment outage combinations, targeted strategies are formulated according to different working conditions to ensure the safety of power grid operation and significantly improve operational efficiency.

[0119] This new-generation simulation platform can be applied to many important aspects such as national grid operation analysis, strategy formulation, and serious a...

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Abstract

The invention discloses a UHV AC / DC power grid simulation platform and a construction method. The platform includes: a digital simulation system, a digital simulation system, a simulation data center and a simulation model library; Simulation results; the digital simulation system corrects the digital simulation model according to the high-precision digital simulation results obtained from the digital simulation system; the digital simulation system also uses supercomputing technology to realize the high Performance digital simulation, and provide remote cloud services for power grids at all levels; the simulation data center and the simulation model library provide data support and core software development support for the digital simulation system and the digital simulation system. The platform improves the efficiency of modeling, experimentation, and power grid calculation; from the perspective of system integration and application, software and hardware can be upgraded at the same time.

Description

technical field [0001] The invention belongs to the technical field of electric power system simulation, and in particular relates to a simulation platform and a construction method of a UHV AC / DC power grid. Background technique [0002] In order to realize the optimal allocation of energy resources across the country, UHV AC and DC transmission technologies have been widely used in recent years. At present, large-scale DC cross-regional power transmission and the integration of AC and DC in the whole network have become typical characteristics of my country's transmission network. With the continuous development of the power system, my country's ultra-high voltage AC and DC power grids andDC power grid, referred to as UHVAC / DC) will continue to expand in scale. [0003] Large-scale UHVAC / DC has brought new challenges to the operation of the power system: the coupling between the sending and receiving end grids is becoming increasingly tight, and the scope of fault chain re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J5/00
CPCH02J5/00H02J2203/20
Inventor 陈国平李柏青李明节郭强李亚楼朱艺颖张星孙华东许涛于钊陶向红陈勇张正陵汤涌安宁徐得超
Owner CHINA ELECTRIC POWER RES INST
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