Estimation method for distribution of plug-and-play critical condition of distributed power sources

Abstract

The invention provides an estimation method for the distribution of the plug-and-play critical conditions of distributed power sources. The estimation method comprises the following steps that: load distribution on a power distribution line is acquired, a function relationship between the plug-and-play critical conditions of the connection of the distributed power sources to the power distributionline under a preset voltage deviation constraint condition and the connection positions of the distributed power sources is determined according to the load distribution; plug-and-play critical conditions under a preset power flow reverse transmission constraint condition and a function relationship between the plug-and-play critical conditions and the connection positions under a preset line capacity constraint condition are obtained; and the distribution of the plug-and-play critical conditions is obtained according to a function relationship distribution curve corresponding to the three constraint conditions. The method has the advantages of low requirement for data size, small calculation amount, and simple calculation within an error allowable range.

Description

technical field [0001] The invention belongs to the technical field of electric power systems, and in particular relates to a method for estimating the distribution of critical conditions of distributed power plug and play. Background technique [0002] The concept of plug and play was first proposed by Microsoft, which means that when a new external device is added to the computer, the resources of the system can be automatically detected and configured without the need to reconfigure or manually install the driver. The concept of plug-and-play originated from the computer field, but due to the intercommunication between various fields, in the rapid development of satellite integrated electronic systems and rapid response to space missions, smart substation plug-and-play on-site relay protection, plug-and-play The concept of plug and play has been involved in the research of many disciplines such as microgrid cluster distributed optimization scheduling. [0003] A large nu...

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Problems solved by technology

[0005] In order to overcome the above-mentioned existing evaluation models that mostly use mathematical optimization algorithms, have high data requirements, long calculation time, and are prone to fall into local optimum problems or at least partially solve the above problems, the embodiments of the present invention provide a distributed power supply that is Estimation Method of Plug and Play Critical Condition Distribution

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