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Multi-period decoupling friendly interactive power distribution network voltage reactive rolling optimization method

A technology of rolling optimization and voltage reactive power, applied in design optimization/simulation, power generation prediction in AC network, photovoltaic power generation, etc., can solve problems such as inability to achieve flexible, continuous and real-time adjustment

Active Publication Date: 2021-09-07
STATE GRID HUBEI ELECTRIC POWER RES INST +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to its working principle and operating cost, flexible, continuous and real-time adjustment cannot be realized

Method used

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  • Multi-period decoupling friendly interactive power distribution network voltage reactive rolling optimization method
  • Multi-period decoupling friendly interactive power distribution network voltage reactive rolling optimization method
  • Multi-period decoupling friendly interactive power distribution network voltage reactive rolling optimization method

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Embodiment Construction

[0058] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0059] see figure 1 , the embodiment of the present invention provides a multi-period decoupling friendly interaction rolling optimization method for voltage and reactive power distribution network, including the following steps:

[0060] S1. Establish a long-term master problem optimization model for discrete on-load tap changer (OLTC) taps...

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Abstract

The invention provides a multi-period decoupling friendly interactive power distribution network voltage reactive rolling optimization method. The method comprises the following steps: S1, establishing a long-period main problem optimization model about a discrete on-load tap changer (OLTC) tap; S2, establishing a series of short-time-period sub-problem rolling optimization models about continuous distributed photovoltaic (PV) power output based on a model prediction theory; and S3, adopting benders to decompose the iteration process of the main and sub problems, and solving the global optimal solution of the friendly interactive power distribution network voltage reactive power optimization model. According to the method, the uncertainty of PV power generation is fully considered, the OLTC gear change cost is further reduced, and the economical efficiency and safety of a friendly interactive power distribution network voltage optimization strategy are ensured.

Description

technical field [0001] The invention relates to the field of distribution network optimization and regulation, in particular to a multi-period decoupling friendly interactive distribution network voltage and reactive power rolling optimization method. Background technique [0002] At present, the high-penetration distributed photovoltaic (PV) power generation in the friendly interactive distribution network has greatly challenged the operation mode of the traditional power grid. Due to the strong randomness and volatility of photovoltaic power generation, it is very easy to cause the reverse flow of the feeder line of the distribution network, and safety problems such as voltage exceeding the limit. The OLTC in the distribution network is considered to be a common control device to prevent voltage from exceeding the limit. By adjusting the tap position, the secondary bus voltage of the substation can be kept constant. However, due to its working principle and operating cost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/50H02J3/00G06F30/20
CPCH02J3/50H02J3/003H02J3/004G06F30/20H02J2203/10H02J2203/20H02J2300/24Y02E10/56
Inventor 沈煜杨帆胡伟杨志淳雷杨蒋伟唐泽洋窦晓波
Owner STATE GRID HUBEI ELECTRIC POWER RES INST
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