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Energy storage type photovoltaic power generating system

A photovoltaic power generation system and battery energy storage system technology, applied in photovoltaic power generation, photovoltaic power stations, photovoltaic modules, etc., can solve problems such as day and night off-time stability, adverse effects of user power quality, and inability to respond to demand, so as to improve operating efficiency and reliability effect

Inactive Publication Date: 2015-03-25
HEFEI ZHENGMEI POWER SUPPLY TECH
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AI Technical Summary

Problems solved by technology

However, since solar power generation is still intermittent and unstable, it may have a negative impact on the user's power quality; and it can be used immediately, and cannot respond to demand; when a grid failure occurs, the decentralized solar photovoltaic power station must also stop running, the goal of off-grid autonomy cannot be achieved
[0004] In the existing distributed solar photovoltaic power generation system, the output power of the system is easily affected by the external environment such as the weather, and it is interrupted day and night and has poor stability.

Method used

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  • Energy storage type photovoltaic power generating system

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Embodiment Construction

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Such as figure 1 As shown, the energy storage type photovoltaic power generation system of the present invention is composed of a photovoltaic power generation system, a battery energy storage system, a data acquisition system and a control system;

[0018] The photovoltaic power generation system is composed of two photovoltaic cells combined with a DC power converter; the two photovoltaic cells can freely form strings and / or parallel photovoltaic cell groups; the DC power converter is used to complete the intelligent charging of the storage battery and the maximum Power output control function;

[0019] The battery energy storage system is composed of a lead-acid battery and a charge-discharge controller; the lead-acid battery is used to provide backup capacity for the system to maintain a stable output of the system; the charge-discharge controller consists of...

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Abstract

The invention relates to an energy storage type photovoltaic power generating system. The energy storage type photovoltaic power generating system is composed a photovoltaic power generating system body, a battery energy storage system, a data collecting system and a control system. A storage battery energy storage unit serves as an energy buffering device of the photovoltaic power generating system body, and generating power output is effectively controlled. The power supply mode of the system is managed and set according to the system generating capacity and the power grid power demand, the running efficiency and reliability of the system are improved, and the positive role of a distributed energy source in a power grid is brought into full play.

Description

technical field [0001] The invention relates to a photovoltaic power generation system, in particular to an energy storage type photovoltaic power generation system. Background technique [0002] Solar power generation, wind power generation, tidal power generation and other renewable energy power generation provide an alternative solution idea and method to solve the increasingly tense energy crisis and environmental pollution problems in human society. Taking solar photovoltaic power generation as an example, with the increasing installed capacity in the world in recent years, it is becoming an important technical means for the utilization of renewable energy. [0003] Solar photovoltaic power generation can be simply divided into two ways, one is centralized solar photovoltaic power station, through the construction of large-scale solar photovoltaic power stations with a scale of tens of megawatts or even hundreds of megawatts in a concentrated and contiguous manner, sola...

Claims

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Application Information

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IPC IPC(8): H02S10/20H02J3/32
CPCH02J3/32H02S10/00Y02E10/56Y02E70/30
Inventor 赵雨赵弼龙黄曦
Owner HEFEI ZHENGMEI POWER SUPPLY TECH
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