Photovoltaic power station group output power transmission capacity static optimization method based on stored energy

A photovoltaic power station, static optimization technology, applied in the direction of photovoltaic power generation, energy storage, renewable energy integration, etc., can solve problems such as abandoning light and limiting electricity, power cannot be sent in time, and large construction investment

Active Publication Date: 2015-01-14
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology

If the capacity of the transmission line is configured according to the installed capacity, this will lead to a low utilization level of the transmission line; if the capacity of the transmission line is reduced, it is very likely that the power cannot be sent out in time during the peak p...

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  • Photovoltaic power station group output power transmission capacity static optimization method based on stored energy
  • Photovoltaic power station group output power transmission capacity static optimization method based on stored energy
  • Photovoltaic power station group output power transmission capacity static optimization method based on stored energy

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Embodiment Construction

[0068] A method for statically optimizing the power transmission capacity of photovoltaic power station groups based on energy storage in the present invention will be further described below using the drawings and embodiments.

[0069] A method for static optimization of power transmission capacity of photovoltaic power station groups based on energy storage in the present invention comprises the following steps:

[0070] 1) Analysis of output characteristics of photovoltaic power station groups

[0071] A large-scale photovoltaic power station group usually consists of multiple photovoltaic power stations. The active output of each photovoltaic power station is converged to a main substation through lines, and then connected to the grid through one or more transmission lines. The solar panels at different installation locations The situation at different places is often different, resulting in different output power of photovoltaic panels in different locations or regions; a...

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Abstract

The invention relates to a photovoltaic power station group output power transmission capacity static optimization method based on stored energy. In order to solve the problems that current photovoltaic power station group output power capacity is not reasonable in distribution and the using rate is low, the photovoltaic power station group output power transmission capacity static optimization method is based on photovoltaic power station active power output characteristics and load characteristics, factors such as power transmission earnings, power transmission line building cost, energy storage system cost, reduction of reserve capacity and environmental influences are comprehensively considered, an optimization function with maximization of the comprehensive investment revenue of a power transmission system as a target is built, and the photovoltaic power station output power transmission capacity is accordingly optimized. The photovoltaic power station group output power transmission capacity static optimization method has the advantages of being scientific, reasonable, high in applicability, maximized in comprehensive revenue and the like.

Description

technical field [0001] The invention relates to an energy storage-based method for statically optimizing the power transmission capacity of photovoltaic power station groups. Background technique [0002] With the rapid development of the economy, people are facing enormous pressure on energy and environment at the same time. As a renewable energy source, solar energy has the characteristics of safety, cleanliness and wide distribution, and has attracted more and more attention. Large-scale centralized photovoltaic grid-connected power generation systems are one of the development trends of solar power generation. Most of them are distributed in remote areas with relatively rich and stable solar energy resources, far away from the load center, and connected to the system through high-voltage, long-distance transmission lines. [0003] Solar energy is different from other renewable energy sources such as wind energy and water energy, and has its unique natural characteristic...

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Application Information

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IPC IPC(8): H02J3/28
CPCH02J3/28Y02B10/10Y02E10/56Y02E70/30
Inventor 崔杨李焕奇严干贵穆钢
Owner NORTHEAST DIANLI UNIVERSITY
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