Reactive configuration double-layer planning method for power distribution network containing distributed photovoltaics

A distributed photovoltaic and distribution network technology, applied in biomolecular computers, data processing applications, forecasting, etc., can solve problems such as high voltage and excess reactive power, and achieve the effect of reducing waste of resources, maximizing investment and operating benefits

Pending Publication Date: 2019-09-13
JIANGSU ELECTRIC POWER CO +2
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Problems solved by technology

[0004] Aiming at the problems of excessive reactive power and high voltage after high-penetration distributed photovoltaic multi-point access to distribution network, the purpose of this invention is to provide a distribution network reactive power configuration dual Layer planning method, coordinate the allocation of photovoltaic power generation, capacitors, and reactors to realize the planning of reactive power resources, and realize the optimal allocation of reactive power in the distribution network at the lowest cost, so as to realize the consumption of high-permeability distributed photovoltaics

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  • Reactive configuration double-layer planning method for power distribution network containing distributed photovoltaics
  • Reactive configuration double-layer planning method for power distribution network containing distributed photovoltaics
  • Reactive configuration double-layer planning method for power distribution network containing distributed photovoltaics

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[0055] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0056] Figure 5 As an example structure of a distribution network in a certain area, the present invention provides a two-layer planning method for reactive power configuration of a distribution network containing distributed photovoltaics, such as figure 1 , the method includes the steps of:

[0057] Step 1: Input the original data of the power grid. In this example, photovoltaics are installed on nodes 10, 12, 14, 15, and 17, with a capacity of 500kW. According to the load and power of photovoltaics, a typical calculation scenario is generated, mainly including sunny days in spring, Cloudy days on weekdays in spring, cloudy days on weekdays in spring, sunny days on spring holidays, cloudy days on spring holidays, cloudy days on spring holidays, sunny days on weekdays in summer, cloudy days on weekdays in summer, clou...

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Abstract

The invention discloses a reactive power configuration double-layer planning method for a power distribution network containing distributed photovoltaics. In order to solve the problems of reactive power excess, high voltage and the like which may occur in a small load mode after a high-permeability distributed photovoltaic multi-point access power distribution network is connected, the photovoltaic power generation, the capacitor and the reactor are coordinated and configured to realize the planning of reactive resources, and the reactive optimal configuration of the power distribution network is realized with the minimum cost, so that the consumption of high-permeability distributed photovoltaic is realized.

Description

technical field [0001] The invention belongs to the field of active distribution network planning, and in particular relates to a two-layer planning method for reactive power configuration of a distribution network containing distributed photovoltaics. Background technique [0002] Due to the complex algorithm and heavy modeling workload, reactive power optimization planning is very difficult to apply in the power grid design stage. Therefore, in the actual design stage, the reactive power compensation capacity of each substation is designed according to the principle of reactive power configuration or the compensation range stipulated in the regulations. and the number of groups. For example, according to the reactive power allocation principle of 110kV substation, it is proposed that the capacitive reactive power compensation configuration should be configured according to 10% to 30% of the main transformer capacity, and the inductive reactive power compensation configurat...

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Application Information

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IPC IPC(8): G06Q10/04G06Q50/06G06N3/00
CPCG06N3/002G06Q10/04G06Q50/06
Inventor 陶琼秦晓东梁铭王德顺殷俊赵上林陈艳孙博周国正叶季蕾薛金华
Owner JIANGSU ELECTRIC POWER CO
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