Direct current converter and control method thereof
A DC converter and control circuit technology, applied in the direction of converting DC power input to DC power output, control/regulation systems, instruments, etc., can solve the adverse effects of the service life of energy storage equipment and the lack of high-precision control systems in energy storage links , Renewable energy power generation system stability, reduced practicability and other issues, to achieve the effect of extending the service life
Inactive Publication Date: 2018-03-23
ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER
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[0002] With the depletion of fossil fuels, renewable energy such as solar energy and wind energy has attracted more and more attention due to its renewable energy, clean and pollution-free advantages, and the power generation system based on renewable energy has achieved rapid development. However, due to the intermittency and instability of new energy sources such as wind energy and solar energy, the stability and practicability of the renewable energy power generation system are greatly reduced. The stable flow of energy under working conditions maintains the continuous and stable operation of the system, but the traditional energy storage link lacks a high-precision control system, which adversely affects the service life of the energy storage equipment
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[0033] The present invention will be further described below in conjunction with specific embodiments, but the protection scope of the present invention is not limited thereto.
[0034] A DC converter, comprising a converter main circuit, a DSP control circuit, a drive circuit, a sampling circuit and an auxiliary power supply circuit, wherein the converter main circuit, the sampling circuit, the DSP control circuit, the drive circuit and the auxiliary power supply circuit are electrically connected in sequence, Such as figure 1 shown;
[0035] The main circuit of the converter is a channel for bidirectional flow of energy in the energy storage system, and is the basic circuit for realizing the storage and release of energy in the energy storage system. The sampling circuit samples the voltage and current signals of the energy storage system, and amplifies the signal Feedback to the DSP control circuit, the DSP control circuit performs data processing and calculation according...
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The invention discloses a direct current converter and a control method thereof. The direct current converter, as a main circuit, together with a DSP control circuit, a driving circuit, a sampling circuit and an auxiliary power source circuit, constitutes a control system of an energy storage link; the on-off status of energy storage equipment in the energy storage system can be accurately controlled according to the supply situation of renewable energy sources; the service life of the energy storage equipment can be prolonged; the stable flow of energy under different working conditions can be ensured; and when renewable energy disturbance occurs, the control system based on the direct current converter, controls the energy storage system to be converted under different working conditions, so that the stable operation of loads can be maintained.
Description
technical field [0001] The invention relates to the technical field of DC converters, in particular to a DC converter and a control method thereof. Background technique [0002] With the depletion of fossil fuels, renewable energy such as solar energy and wind energy has attracted more and more attention due to its renewable energy, clean and pollution-free advantages, and the power generation system based on renewable energy has achieved rapid development. However, due to the intermittency and instability of new energy sources such as wind energy and solar energy, the stability and practicability of the renewable energy power generation system are greatly reduced. The stable flow of energy under working conditions maintains the continuous and stable operation of the system, but the traditional energy storage link lacks a high-precision control system, which adversely affects the service life of the energy storage equipment. Contents of the invention [0003] The purpose ...
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Login to View More IPC IPC(8): H02M3/00H02J7/34
CPCH02J7/34H02M3/00
Inventor 姚玮崔佳民
Owner ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER