Optical storage and charging energy control method based on real-time regulation and control of meteorological information

A weather information, real-time control technology, applied in energy storage, photovoltaic power generation, electrical components, etc., can solve the problems of photovoltaic power generation that cannot be stored and charged in time, consumed, and abandoned, so as to solve the problem of photovoltaic abandonment and reduce battery capacity. , The effect of reducing equipment cost

Inactive Publication Date: 2021-09-07
ZHEJIANG ZHENENG TECHN RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the type of energy storage battery is relatively small, photovoltaic power generation cannot be stored and charged in time or will be consumed, which will lead to serious light abandonment problems

Method used

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  • Optical storage and charging energy control method based on real-time regulation and control of meteorological information
  • Optical storage and charging energy control method based on real-time regulation and control of meteorological information
  • Optical storage and charging energy control method based on real-time regulation and control of meteorological information

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 of this application provides a real-time control method for solar energy storage charging energy based on meteorological information:

[0029] Step 1, configure the weather acquisition module 9 on the EMS6, the weather acquisition module 9 is connected to the Internet through the on-board Ethernet port, obtains the weather information through the Internet, and obtains the daytime weather conditions predicted in the weather information;

[0030] Step 2. EMS6 controls whether the energy storage battery 7 is pre-charged according to the predicted daytime weather conditions, and controls the reserved charging capacity SOC of the energy storage battery 7 to store and charge the electric energy generated by the photovoltaic panel 8 during the daytime; the reserved charging capacity SOC is The calculation formula is:

[0031] soc=((q1*η-q2-q3)÷q4)

[0032] q1=p*h

[0033] In the above formula, p is the photovoltaic power generation power under the AM1.5 standard...

Embodiment 2

[0039] On the basis of Embodiment 1, Embodiment 2 of the present application provides the application of the control method of optical storage charging energy based on real-time regulation of weather information in Embodiment 1 in a comprehensive charging station:

[0040] The energy storage battery storage and charging capacity of a certain station is q4=360kw, the daily power consumption of charging piles is q3=200kw, the daily power consumption of the station building is q2=120kw, and the power generation power of photovoltaic panels is p=80kw / h. The electricity generated during the day is about q1=p*h=80*7=560kw.

[0041] Sunny day η=90%: reserved soc=((q1*η-q2-q3)÷q4)=(560*90%-120-200)÷360=78%, the reserved soc of the energy storage battery is 78%. When the energy storage battery is charged to (1-78%)=22% at night, stop charging.

[0042] On cloudy days η=30%: q1*η=560*30%=168kw, since the photovoltaic power generation 168kw

Embodiment 3

[0046] On the basis of the first embodiment, the third embodiment of the present application also provides the charging and discharging control of the energy storage battery based on weather information in the light, storage and charging system.

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Abstract

The invention relates to an optical storage and charging energy control method based on real-time regulation and control of meteorological information, which comprises the following steps: configuring a weather acquisition module on an EMS (Energy Management System), connecting the weather acquisition module with the Internet through an onboard Ethernet port, acquiring the meteorological information through the Internet, and obtaining the predicted daytime weather condition in the meteorological information. The method has the advantages that the generated power of the crystal photovoltaic panel is greatly influenced by weather, and after weather information is obtained through the energy management system EMS, the charging electric quantity and the discharging electric quantity of the energy storage battery are dynamically controlled; and compared with a system without a weather information management mechanism, when the weather is clear, the system stores and charges the electric quantity of the photovoltaic panel by reserving the capacity of the energy storage battery, solves the problem of photovoltaic light abandoning, fully utilizes clean energy, can completely consume the power generation electric energy of the photovoltaic panel, can reduce the capacity of a matched battery, reduces the equipment cost, and achieves the effects of reducing cost and improving efficiency.

Description

technical field [0001] The invention belongs to the technical field of power system operation control with new energy as the main body, and in particular relates to a control method for optical storage charging energy based on real-time regulation of meteorological information. Background technique [0002] As the country officially proposed the "3060" carbon peak carbon neutrality goal, the construction of a power system with new energy as the main body has brought unprecedented changes to the energy industry, and it has also had a great impact on the passenger car market. . By 2025, the annual sales of new energy vehicles is expected to reach 7.5 million. A large number of new energy operating vehicle markets have accelerated the social demand for high-power charging pile services. Carry out the implementation of photovoltaic storage charging micro-grid system in the comprehensive charging station, use the station building and shed of the comprehensive charging station to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/38
CPCH02J3/322H02J3/381H02J2300/24H02J2203/20Y02A30/00Y02E70/30Y02E10/56
Inventor 王金伟杨涛董佳斌张子龙
Owner ZHEJIANG ZHENENG TECHN RES INST
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