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Optimal Power Flow Control Method for AC-DC Hybrid Distribution Network Considering Reliability Index

An AC-DC hybrid, optimal power flow technology, applied in the direction of AC-DC network circuit layout, AC network circuit, electrical components, etc., can solve problems such as algorithm oscillation, and achieve high stability, fast calculation speed, and strong optimization ability. Effect

Active Publication Date: 2021-10-01
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology

In view of the fact that there are few optimal power flows considering the reliability index at present, and the direct application of existing intelligent algorithms to solve the optimal power flow problem of AC-DC hybrid distribution network has many limitations such as algorithm oscillation

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  • Optimal Power Flow Control Method for AC-DC Hybrid Distribution Network Considering Reliability Index
  • Optimal Power Flow Control Method for AC-DC Hybrid Distribution Network Considering Reliability Index
  • Optimal Power Flow Control Method for AC-DC Hybrid Distribution Network Considering Reliability Index

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Embodiment Construction

[0034] The following combination Figure 1-Figure 4 The present invention will be further described in detail with specific examples, and the specific examples described here are only used to explain the present invention, and are not intended to limit the present invention.

[0035] refer to figure 1 , an optimal power flow control method for an AC / DC hybrid distribution network considering reliability indicators of the present invention, including the following content:

[0036] 1) Fast power flow calculation:

[0037] Based on the power balance, the power balance equation of the AC / DC hybrid distribution network with the total number of nodes being N∈[3,9999] is established:

[0038]

[0039] In the formula (1), j=1,2,...,N is the node serial number; P js is the algebraic sum of the source or load active power injected into node j, Q js is the algebraic sum of the source or load reactive power injected into node j; P j Inject the algebraic sum and Q of active power ...

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Abstract

The present invention is an optimal power flow control method for AC / DC hybrid distribution network considering the reliability index. It can solve the optimal power flow problem. At the same time, in solving the optimal power flow problem of the AC-DC hybrid distribution network, the control method has high stability, strong optimization ability, and fast calculation speed. Optimal power flow problem for multi-infeed AC / DC hybrid distribution network.

Description

technical field [0001] The invention relates to the field of AC and DC hybrid distribution networks, in particular to an optimal power flow control method for AC and DC hybrid distribution networks considering reliability indexes. Background technique [0002] With the increase in demand for electric energy and the need for environmental protection, sustainable low-carbon energy applications have gradually received attention and development. Power electronics play an important role in the conversion of new energy sources. With the development of power electronics technology and the increase of DC power supply and load ratio, the traditional AC distribution network has transformed into an AC-DC hybrid distribution network. [0003] The optimal power flow is an important means to ensure the safe operation of the distribution network, and it is also the basis and premise of the optimal operation of the AC-DC hybrid distribution network, which has important theoretical value an...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J4/00
CPCH02J4/00H02J2203/10H02J2203/20
Inventor 金国彬石超潘狄成龙王利猛刘玉龙李国庆辛业春杨明城苑忠奇
Owner NORTHEAST DIANLI UNIVERSITY