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Power control method for active power distribution network comprising flexible interconnection device

A technology for active distribution network and power regulation, applied in circuit devices, AC network voltage regulation, AC networks with the same frequency from different sources, etc. It can solve problems such as poor global search capability and poor targeting.

Active Publication Date: 2019-03-08
HEFEI UNIV OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Compared with the genetic algorithm, the particle swarm optimization algorithm has fast convergence speed and high optimization efficiency, but its global search ability and pertinence are poor

Method used

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  • Power control method for active power distribution network comprising flexible interconnection device
  • Power control method for active power distribution network comprising flexible interconnection device
  • Power control method for active power distribution network comprising flexible interconnection device

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Embodiment Construction

[0087] In this embodiment, a power regulation method of an active distribution network with a flexible interconnection device, distributed power sources and loads are provided on different branches of the active distribution network, and flexible interconnection devices are provided between the branches for direct Transmission of electric energy and reactive power compensation; such as figure 2 As shown, the power regulation method is carried out as follows:

[0088] Step 1. According to the structure and parameters of the active distribution network, establish a simplified model for its power flow calculation;

[0089] Step 1.1, obtain the original data of active distribution network nodes;

[0090] Let the number of nodes of the active distribution network be k in total, and the number of branches be m, wherein the balance node is recorded as the first node, and the active value of the balance node is recorded as P 1 , the reactive value is denoted as Q 1 , the voltage v...

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Abstract

The invention discloses a power control method for an active power distribution network comprising a flexible interconnection device. The power control method comprises the steps of 1, simplifying thepower distribution network and building a corresponding active power distribution network power flow calculation simplification model according to an active power distribution network structure and initial information reading data; 2, building a mathematical model according to power control object and target of the active power distribution network, and determining a target function and a constraint condition which are required by the mathematical model; and 3, optimizing the mathematical model of the active power distribution network by improved particle swarm optimization so that the powercontrol of the active power distribution network is achieved. By the power control method, the power of the active power distribution network can be rapidly and accurately controlled, so that the purposes of reducing network loss of the active power distribution network and stabilizing a voltage of each branch node are achieved possibly.

Description

technical field [0001] The invention relates to the field of power system analysis, and more specifically, the invention relates to an active distribution network power regulation method including a flexible interconnection device. Background technique [0002] With the increase of distribution network load, distributed energy access in active distribution network can effectively alleviate the power consumption pressure compared with traditional passive distribution network. However, the access of distributed power sources will not only lead to large fluctuations in node voltage, but also cause power redundancy in some branches of the distribution network with small power demand, resulting in the phenomenon of power reverse, which will affect active power distribution. stable operation of the network. At present, Zhejiang Power Grid has invested in flexible interconnection devices in the active distribution network of the demonstration area, which transmits electric energy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/06H02J3/16
CPCH02J3/06H02J3/16H02J3/381H02J2203/20Y02E40/30
Inventor 吴红斌林雪杉曾希刘鑫
Owner HEFEI UNIV OF TECH
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