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Transition process simulation method for variable-speed pumped storage unit

A pumped-storage unit and simulation method technology, applied in the direction of design optimization/simulation, special data processing application, etc., can solve the problem of no variable-speed pumped-storage unit simulation model simulation method and so on

Pending Publication Date: 2021-10-15
STATE GRID XINYUAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The variable-speed pumped storage unit has the advantages of fast operation adjustment, high efficiency, flexibility, and reliability. Now it has become a new development direction of the pumped storage industry. At present, there is no simulation model of the variable-speed pumped storage unit and Corresponding Simulation Method

Method used

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  • Transition process simulation method for variable-speed pumped storage unit
  • Transition process simulation method for variable-speed pumped storage unit
  • Transition process simulation method for variable-speed pumped storage unit

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Embodiment Construction

[0031] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0032] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of the present specification shall have ordinary meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in one or more embodiments of the present specification do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "con...

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Abstract

One or more embodiments of the invention provide a transition process simulation method for a variable-speed pumped storage unit, which comprises the following steps: constructing a variable-speed pumped storage unit transition process simulation model comprising a doubly-fed induction motor and an alternating current excitation system model, and operating the simulation model by configuring various operating parameters. The simulation result of the transition process of the variable-speed pumped storage unit can be obtained, the dynamic operation adjustment process of the variable-speed unit can be predicted, a basis is provided for safe and stable operation of a pumped storage power station applying the variable-speed unit, and key technical support is provided for use of the pumped storage power station applying the variable-speed unit.

Description

technical field [0001] One or more embodiments of this specification relate to the technical field of hydropower engineering, and in particular to a method for simulating a transition process of a variable-speed pumped storage unit. Background technique [0002] A pumped storage power station is a complex nonlinear dynamic system that integrates water-mechanical-electrical-magnetic characteristics. During daily operation, due to frequent changes in working conditions, hydraulic turbines, generators, and excitations may be at different operating points. During the transition process, although it lasted for a short time, it was accompanied by a sharp change in the working condition parameters, which caused a large dynamic additional load and a series of complex physical phenomena caused by the inertia of the water flow and the motion of the machine. It has an extremely important influence on the operation safety and operation quality of the pumped storage unit. The simulation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 丁景焕杨威嘉桂中华倪晋兵王珏刘殿海黄一凡江献玉杨建东周喜军韩文福杨静邓磊肖微张飞徐三敏杨柳
Owner STATE GRID XINYUAN
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