Photovoltaic power generation energy control system and control method of Internet of Things based on GA-SVM modulation

A GA-SVM and photovoltaic power generation technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems such as voltage distribution imbalance, harmonic content loss, and long time consumption, and achieve power imbalance and power oscillation, Effect of eliminating harmonic current compensation and shortening calculation time
CN114465271APending Publication Date: 2022-05-10ZHEJIANG CHINT INSTR & METER +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG CHINT INSTR & METER
Publication Date
2022-05-10

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Abstract

The invention discloses an Internet of Things photovoltaic power generation control system and method based on GA-SVM modulation, and the method comprises the steps: carrying out the parameter setting of a first current modulation module, a second current modulation module, a PR controller and a notch filter, and receiving the voltage and current of a common point of a smart power grid, the three-phase current of an output end of an inverter, and the DC output voltage of a photovoltaic cell; acquiring and judging whether to generate a first reference current and / or a second reference current in real time, and determining one of the first current modulation module and the second current modulation module with the optimal response speed; if the response speed of the second current modulation module is optimal, corresponding switching is carried out, so that a connecting line between the second current modulation module and the SVM wave sending module is switched on, and voltage Va, Vb and V0 are obtained through conversion of second reference current; otherwise, converting the first reference current to obtain voltages Va, Vb and V0; and based on SVM wave generation, the inverter is controlled to work, the response speed is high, and the power generation efficiency is high.
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Description

technical field

[0001] The invention belongs to the field of Internet of Things and smart grid power transmission and distribution, and relates to an Internet of Things photovoltaic power generation energy control system and control method based on GA-SVM modulation. Background technique

[0002] As the basic unit of the Global Energy Internet, the smart grid is connected to the existing traditional power grid on a large scale with renewable energy sources such as photovoltaics, wind energy, biomass energy and tides, fuel cells, and geothermal energy. The power distribution system has high reactance ratio and unbalanced load. curve. Introducing various AC and DC monitoring devices, electric energy metering of electronic meters into the power distribution system, numerous voltage and current sensors and electronic choke coils used in smart grids and the Internet of Things, when nonlinear loads are applied to the system, the power supply current tends to Non-sinusoidal with s...

Claims

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