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Method and system for calculating critical multi-infeed interaction factor in consideration of direct current change

A technology of multi-infeed interaction and action factors, applied in the field of power system planning and operation

Active Publication Date: 2019-03-08
CHINA ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical solution of the present invention provides a calculation method and system for the critical multi-infeed interaction factor of DC current change, so as to solve the problem of how to calculate the critical multi-infeed interaction factor considering the DC current change after a fault

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  • Method and system for calculating critical multi-infeed interaction factor in consideration of direct current change
  • Method and system for calculating critical multi-infeed interaction factor in consideration of direct current change

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[0074] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings are not limiting of the present invention. In the figures, the same units / elements are given the same reference numerals.

[0075] Unless otherwise stated, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that the terms defined by commonly used dictionaries should be understood as having consistent meanings in the context of their related fields, and should not be understood as idealiz...

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Abstract

The invention discloses a method for calculating a critical multi-infeed interaction factor in consideration of direct current change. The method comprises the steps of determining a to-be-detected multi-infeed alternating current and direct current system and acquiring a multi-infeed alternating current and direct current system network, a network parameter, a component model and a model parameter to generate load flow calculation data; calculating the load flow calculation data by use of a load flow calculation method to obtain an operational parameter of the multi-infeed direct current system; and calculating the critical multi-infeed interaction factor in consideration of the direct current change among inverter stations.

Description

technical field [0001] The present invention relates to the technical field of power system planning and operation, and more specifically, to a calculation method and system for critical multi-infeed interaction factors of DC current changes. Background technique [0002] With the implementation of the "West-to-East Power Transmission" and "National Networking" energy strategy, dozens of DC transmission systems will be built in my country in 2020. The multi-infeed DC transmission system with the receiving end on the same AC grid has already been installed in the East China Grid and South China Grid. formed in the grid. Multi-infeed HVDC transmission system not only expands the system transmission capacity and increases the flexibility of operation mode, but also increases the complexity of the system structure, which makes the problem of commutation failure more complicated. In recent years, multiple DC simultaneous commutation failures have occurred frequently due to distur...

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Application Information

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IPC IPC(8): H02J3/36
CPCH02J3/36H02J2203/20Y02E60/60
Inventor 邵瑶汤涌周勤勇赵珊珊张立波
Owner CHINA ELECTRIC POWER RES INST
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