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Active distribution network optimization scheduling method and system based on mixed integer linear programming

An active distribution network, mixed integer technology, applied in wind power generation, photovoltaic power generation, electrical components, etc., can solve problems such as easy to fall into local optimum and slow solution speed

Active Publication Date: 2018-10-19
STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +2
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Problems solved by technology

However, when these algorithms solve complex optimization scheduling problems, their inherent shortcomings such as slow solution speed and easy to fall into local optimum are also exposed.

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  • Active distribution network optimization scheduling method and system based on mixed integer linear programming
  • Active distribution network optimization scheduling method and system based on mixed integer linear programming
  • Active distribution network optimization scheduling method and system based on mixed integer linear programming

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[0060] The present invention is described in detail below in conjunction with accompanying drawing:

[0061] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. In addition, it should also be understood that when the terms "comprising" and / or "comprises" are used in this specification, it indicates the presence of features, steps, operations, means, components and / or their combination.

[0062] An optimal scheduling method for active distribution network based on mixed integer linear programming, comprising the following steps:

[0063] (1) Determine the linear power flow equation of the active distribution network.

[0064] The linearized power flow equation needs to ignore the value of the high-order term, and assume that the voltage of each node is basically the same, and the above conditions are easily satisfied in the distributio...

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Abstract

The invention discloses an active distribution network optimization scheduling system and method based on mixed integer linear programming. Firstly, a linearization equation of the branch power flow of the distribution network is given, and main components in the active distribution network are modeled and linearized; then, an active distribution network day-ahead economic dispatching model considering active power and reactive power coordinated scheduling is constructed. At the same time, in order to overcome the impact of the strong randomness of a distributed power supply on the day-ahead scheduling, a short-term scheduling model with the goal of maximizing photovoltaic and wind power consumption is constructed; a short-term optimal scheduling result is obtained with the day-ahead scheduling as a reference; and finally, the present invention verifies the effectiveness and speedability of the proposed invention through an improved IEEE 33-node distribution network example.

Description

technical field [0001] The invention relates to the technical field of optimal scheduling of active distribution networks, in particular to a method and system for optimal scheduling of active distribution networks based on mixed integer linear programming. Background technique [0002] In order to control the impact of distributed power access on distribution network operation control, active distribution network technology has emerged as the times require. However, with the massive access of multi-type and high-penetration distributed Decentralization and strong intermittent characteristics of output bring new challenges to the optimal control of active distribution network. Further excavating the energy management potential of the active distribution network, realizing the collaborative optimization of multiple sources in the active distribution network, and ensuring the safe and economical operation of the active distribution network have become the current research hots...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38
CPCH02J3/00H02J3/383H02J3/386H02J2203/20Y02E10/56Y02E10/76
Inventor 杨晶晶马建生林凡勤马玉伟邹贵彬曹华明董澎湃郑凯葛亮赵琳
Owner STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY
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