A Distributed Photovoltaic Power Generation Control Method for Adaptive Adjustment of Reactive Power Output

A distributed photovoltaic and self-adaptive adjustment technology, applied in the direction of single-grid parallel feeding arrangement, etc., can solve the problems of unsatisfactory reactive power compensation optimization effect, poor power quality and other problems, improve flexibility and power quality, and achieve obvious optimization effect. , good global effect

Active Publication Date: 2017-12-08
XUJI GRP +1
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a distributed photovoltaic power generation control method for adaptively adjusting reactive power output. The particle swarm algorithm is used to optimize the reactive power of photovoltaic participating in the output, which solves the problem of traditional reactive power compensation. The optimization effect is not ideal, leading to the problem of poor power quality

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  • A Distributed Photovoltaic Power Generation Control Method for Adaptive Adjustment of Reactive Power Output
  • A Distributed Photovoltaic Power Generation Control Method for Adaptive Adjustment of Reactive Power Output
  • A Distributed Photovoltaic Power Generation Control Method for Adaptive Adjustment of Reactive Power Output

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[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0025] A distributed photovoltaic power generation control method for adaptively adjusting reactive power output, the steps are as follows:

[0026] Step (1), photovoltaic power is connected to the distribution network system in the area, and the photovoltaic power is involved in absorbing or emitting reactive power. According to the sunshine intensity, temperature and local load data in the area, the output power value of photovoltaic power is calculated and obtained The upper limit of the photovoltaic output reactive power.

[0027] Step (2), using the particle swarm optimization algorithm to optimize the reactive power control in the distribution network system; wherein, the position of the reactive power compensation device and the speed of the gear change are used as the initial position and speed in the particle swarm optimization algori...

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Abstract

The invention relates to a distributed photovoltaic power generation control method for adaptively adjusting reactive power output. The distribution network system in the area is connected to photovoltaics, and the photovoltaics participate in the absorption or emission of reactive power. According to the sunshine intensity, temperature and local load data of the area, the output power value of photovoltaics is calculated, and the output power of photovoltaics is obtained. The upper limit value of work power; then, the reactive power control in the distribution network system is optimized by using the particle swarm optimization algorithm by setting the initial value and the objective function. The invention utilizes the particle swarm algorithm to optimize the reactive power output by photovoltaics, which effectively improves the problem of poor power quality.

Description

technical field [0001] The invention relates to a distributed photovoltaic power generation control method for adaptively adjusting reactive power output, and relates to the field of reactive power optimization and control of power systems. Background technique [0002] Solar photovoltaic power generation, as a clean and efficient way of generating electricity, has been widely concerned and favored by people in recent years. However, due to the strong randomness and discontinuity of photovoltaic power generation, when a large number of photovoltaics are connected to the power distribution system, the complexity of the operation control of the power distribution system will increase significantly, and sometimes it will even cause the load distribution of the entire distribution network to change dramatically. Large changes, which will have an impact on the loss of distribution lines and the voltage of the distribution network, as well as the operational safety and economy of ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/50
Inventor 李斌王林薄志谦王敬朋赵成功马仪成
Owner XUJI GRP
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