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A control method for combined solar-storage system based on double-layer control

A combined system and control method technology, applied in the control field of combined optical storage systems

Active Publication Date: 2022-05-24
NORTHEAST DIANLI UNIVERSITY
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Problems solved by technology

To establish a combined solar-storage system, it is necessary to study its capacity configuration. In the past, the capacity configuration of a combined solar-storage system was conducted to ensure the stable operation of the system or to improve the utilization rate of photovoltaics. However, there is little research on the economics of the system. It is an urgent research problem to maximize the economic benefits while satisfying the demand

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  • A control method for combined solar-storage system based on double-layer control
  • A control method for combined solar-storage system based on double-layer control
  • A control method for combined solar-storage system based on double-layer control

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Embodiment Construction

[0094] A method for controlling a combined optical-storage system based on double-layer control of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0095] Technical solution: A control method for a combined optical-storage system based on double-layer control, comprising the following steps:

[0096] 1. Establish the objective function

[0097] In order to find the optimal configuration of the combined optical storage system, it is first necessary to establish an objective function related to economic indicators. The purpose of the combined optical storage combined system capacity configuration is to ensure the reliability of the system power consumption according to the power and load requirements of the system. To reasonably configure the capacity of the combined optical storage system to optimize the economy, the objective function F is as follows:

[0098] F=min{I 1 +I 2 +I 3 +I 4 -O 2 -O 3 -O 4 } ...

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Abstract

The present invention is a control method for an optical-storage combined system based on double-layer control, including: establishing an index; The goal is to optimize performance; design the double-layer control of the solar-storage combined system. The outer layer control can ensure the best economy under the premise of ensuring reliable power supply, and can ensure the life of the energy storage unit through the energy optimization management method of the inner layer control. and efficiency are optimized to ensure that the optimal configuration of the combined optical storage system can be found; the capacity of the integrated optical storage system is configured according to certain constraints, and the above-mentioned control method is implemented. According to the objective function F, the unique Combined optical storage system configuration. The invention can ensure the stable operation of the system while ensuring the optimal economy of the whole life cycle of the system, and can provide guidance for the construction of the photovoltaic storage power station.

Description

technical field [0001] The invention is a control method of a combined optical storage system based on double-layer control. Background technique [0002] By the end of 2020, my country's national photovoltaic power generation capacity reached 253 million kilowatts, and the national photovoltaic power generation capacity was 260.5 billion kilowatt hours. However, the volatility and intermittency of photovoltaic power generation lead to serious abandonment of light, which makes the photovoltaic light abandonment rate in my country reach 2%. The solution to the above problems is mainly to use the energy storage system to operate in conjunction with the photovoltaic system. At present, most photovoltaic power stations in my country adopt this mode. To establish a combined solar-storage system, it is necessary to study its capacity configuration. In the past, the capacity configuration of the combined solar-storage system was carried out to ensure the stable operation of the sy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00H02J3/32H02J3/38
CPCH02J3/381H02J3/32H02J3/008H02J2203/20H02J2203/10H02J2300/24Y02E70/30Y02E10/56
Inventor 李翠萍穆钢刘洪波罗铉众张哲深李军徽朱星旭严干贵
Owner NORTHEAST DIANLI UNIVERSITY