A Method for Coordinated Control of Photovoltaic Storage and Power Generation Units
A power generation unit and coordinated control technology, applied in photovoltaic power generation, photovoltaic power stations, electrical components, etc., can solve the problems of shortened life, coordinated control of photovoltaic cells and batteries, and low system efficiency, avoiding overcharge and overdischarge, The effect of prolonging service life and improving work efficiency
Inactive Publication Date: 2021-05-04
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology
The above method does not coordinate and control the photovoltaic cells and batteries, and only the batteries supply power to the load, while the photovoltaic cells cannot directly provide electric energy to the loads, resulting in inefficient use of electric energy and low system efficiency. Its life is shortened and cannot meet the electricity demand in forest areas
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[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic flowchart of a method for coordinated control of photovoltaic storage power generation units provided by an embodiment of the present invention, and the method includes:
[0021] Step 1. First, use the sampling circuit to collect the voltage and current values of each point in the in...
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The invention discloses a method for coordinated control of photovoltaic storage power generation units. Firstly, a sampling circuit is used to collect the voltage and current values of each point in an independent photovoltaic power generation system, and a DSP chip is used to calculate the real-time power of each point and the SOC state of the storage battery; according to the According to the obtained real-time power of each point and the SOC state of the battery, select the working mode; according to the selected working mode and the real-time power of each point, obtain the duty ratio information of the DC / DC converter; the obtained duty ratio information Send it to the FPGA chip through the GPIO port; the FPGA chip demodulates the high-frequency PWM modulation signal required for the control of the DC / DC converter according to the received duty cycle information, and realizes the DC / DC converter connected to the photovoltaic cell and the battery control. The method can realize continuous and reliable electric energy supply for the load in cooperation of the storage battery and the photovoltaic cell under different illumination conditions.
Description
technical field [0001] The invention relates to the technical field of new energy power sources and energy storage units, in particular to a method for coordinated control of photovoltaic storage power generation units. Background technique [0002] At present, with the gradual implementation of my country's ecological civilization construction, ecological strategies such as "smart forestry" have been proposed one after another, and the corresponding emerging technologies will be implemented in forest areas, which will inevitably increase the electricity load in forest areas The requirements for the quality of power supply are more stringent. However, due to factors such as the remote location of the forest area and the non-concentrated load distribution, it is usually difficult to reach the traditional large power grid. Even if it is reached, there is a practical problem that the power quality cannot meet the load demand. In recent years, the widely used independent photovo...
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IPC IPC(8): H02S10/20H02J7/35
CPCH02J7/35H02S10/20Y02E10/56Y02E70/30
Inventor 刘素梅刘政刘刚
Owner BEIJING FORESTRY UNIVERSITY