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Parameter optimization method for improving transient power angle stability of new energy sending-out system

A transient power angle, new energy technology, applied in the direction of reducing/preventing power oscillation, AC network voltage adjustment, AC network circuit, etc.

Active Publication Date: 2021-02-26
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

[0005] The present invention proposes a parameter optimization method and system for improving the stability of the transient power angle of the new energy delivery system to solve the problem of how to optimize the parameters of the high-proportion new energy delivery system, thereby improving the stability of the system's transient power angle

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[0062] 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 do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0063] Unless otherwise specified, 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 terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention discloses a parameter optimization method and system for improving the transient power angle stability of a new energy delivery system, and the method comprises the steps: determining acheck fault set according to a delivery scene of the new energy system; sequentially performing fault checking according to the faults in the checking fault set, and obtaining system transient power angle change data corresponding to each fault under different new energy control parameter values; according to the system transient power angle change data, determining a first value range of each newenergy control parameter and the sensitivity of each new energy control parameter value under the condition that the system transient power angle is stable; and determining a preliminary optimizationscheme according to the first value range of each new energy control parameter, the basic value range determined based on the actual operation demand of the new energy corresponding to each new energy control parameter and the sensitivity of the value of each new energy control parameter. The method can effectively improve the transient power angle stability of the system, improves the power transmission capability of an important section, and promotes the reasonable and effective consumption of new energy.

Description

technical field [0001] The present invention relates to the technical field of power systems, and more specifically, to a parameter optimization method and system for improving the transient power angle stability of a new energy delivery system. Background technique [0002] The efficient development and utilization of new energy and long-distance cross-regional power transmission are important means to realize my country's energy sustainable development strategy. As of the end of 2019, my country's installed wind power capacity reached 209 million kilowatts, and photovoltaic power generation installed capacity reached 204 million kilowatts, accounting for more than 21% of the country's installed power generation capacity. In the foreseeable future, the continuous increase in the proportion of new energy will become the main feature of the development of my country's power grid. It is estimated that by 2050, the proportion of installed capacity of wind power and photovoltaic...

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Application Information

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IPC IPC(8): H02J3/48H02J3/50H02J3/24H02J3/12
CPCH02J3/48H02J3/50H02J3/241H02J3/12H02J2203/20Y02E10/56
Inventor 吴萍孙华东仲悟之赵兵蒋彦翃黄东敏常昊
Owner CHINA ELECTRIC POWER RES INST
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