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A Cone Programming-Based Local Voltage Control Strategy Tuning Method for Distributed Power Sources

A technology of distributed power supply and voltage control, applied in electrical components, circuit devices, AC network circuits, etc.

Inactive Publication Date: 2019-05-14
TIANJIN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The mathematics of this model is essentially a mixed integer nonlinear programming problem, which brings great challenges to the calculation solution

Method used

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  • A Cone Programming-Based Local Voltage Control Strategy Tuning Method for Distributed Power Sources
  • A Cone Programming-Based Local Voltage Control Strategy Tuning Method for Distributed Power Sources
  • A Cone Programming-Based Local Voltage Control Strategy Tuning Method for Distributed Power Sources

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Embodiment Construction

[0117] A method for setting local voltage control strategies of distributed power sources based on cone planning in the present invention will be described in detail below in conjunction with embodiments and drawings.

[0118] like figure 2 As shown, a method for setting a local voltage control strategy of a distributed power supply based on cone programming in the present invention includes the following steps:

[0119] 1) According to the selected active power distribution system, input the structure and parameters of the active power distribution system, including: line parameters, load level, network topology connection relationship, access location, capacity and parameters of distributed power, distributed power and load daily operation characteristic prediction curve, system safe operation voltage constraint and branch current limit, initial value of system reference voltage and reference power;

[0120] 2) According to the structure and parameters of the active power ...

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Abstract

The invention provides a distributed power supply local voltage control strategy setting method based on cone programming. An active power distribution system structure and parameters are inputted according to a selected active power distribution system; the sequential characteristics of distributed power supply output and load are considered according to the active power distribution system structure and parameters, and an active power distribution network distributed power supply local voltage control strategy setting model is established; the objective function in the model is linearized, and linearization or cone conversion is performed on the nonlinear constraint so that the active power distribution network distributed power supply local voltage control strategy setting model is enabled to be converted into a second-order cone model; the second-order cone model is calculated by using a mathematical solver solving second-order cone programming; and the solving result is outputted, including the relevant parameters of the distributed power supply local voltage control strategy, the voltage distribution situation of the distributed power supply, the reactive compensation situation and the active reduction situation. The distributed power supply local voltage control strategy can be obtained so that the setting problem of the distributed power supply local voltage control strategy under continuous time sequences can be solved.

Description

technical field [0001] The invention relates to a local control strategy of a distributed power supply. In particular, it relates to a local voltage control strategy setting method for distributed power generation based on cone programming. Background technique [0002] The high attention to energy and the environment makes the development of distribution networks face new pressures and challenges, and these pressures and challenges are also important opportunities to promote the development of traditional distribution networks to active distribution networks. In recent years, a large number of distributed generation (Distributed Generation, DG) including photovoltaic (Photovoltaic, PV) and wind turbines have been connected to the distribution network. The continuous improvement of the penetration rate of distributed power makes the problems of bidirectional power flow, reactive power and voltage control of active distribution network more prominent, especially the access o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38
CPCH02J3/381H02J2203/20
Inventor 赵金利李雨薇王成山李鹏冀浩然宋关羽宋毅孙充勃原凯薛振宇靳夏宁
Owner TIANJIN UNIV
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