Variable-frequency pulse power supply for electro-desalting and generation method of variable-frequency pulse power supply
A variable frequency pulse and electric desalination technology, applied in the field of electric desalination, can solve the problems of large pulse distortion and poor reliability, and achieve the effect of improving power supply efficiency
Pending Publication Date: 2021-12-10
XIAMEN RECH TECH
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[0004] All inverters use full-bridge or half-bridge to form a power conversion circuit, and use the area equivalent principle to work. The control terminal uses carrier wave and target waveform to modulate into PWM, and finally outputs the target waveform through the inertial link. The pulse basically uses intermittent The way of power supply is realized, the pulse distortion is large, the switching frequency of the power device is several times the output frequency, and the reliability is poor
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[0043]To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.
[0044] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0045] like Figure 1-Figure 3 As shown, the present invention discloses a frequency conversion pulse power supply for electrical desalination, whose input is connected to a 380V three-phase alternating current, includi...
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The invention discloses a variable-frequency pulse power supply for electro-desalting and a generation method of the variable-frequency pulse power supply. Master-slave dual-path inverter devices are adopted, the first inverter device is connected with a low-voltage alternating current, the second inverter device is connected with an energy storage capacitor, the first inverter device provides a bipolar low-voltage pulse power supply in a positive period, then boosting processing is carried out through a pulse transformer to form a high-voltage direct-current pulse power supply, and when the current of the low-voltage pulse power supply in the positive period or the negative period reaches an upper limit value, the energy storage capacitor absorbs follow current energy of the pulse transformer device from the inverter device; and after the energy storage capacitor stores energy, the second inverter device and the first inverter device are superposed to output a low-voltage pulse power supply. Through the generation method, the follow current energy of the pulse transformer device can be recycled when the low-voltage pulse power supply is output, and the power supply efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of electric desalination, in particular to a frequency conversion pulse power supply for electric desalination and a generating method thereof. Background technique [0002] Crude oil contains water, as well as natural emulsifiers such as colloid and asphaltene. During the extraction and transportation of crude oil, due to violent disturbance, water is dispersed in the crude oil in the form of droplets, and the emulsifier in crude oil is concentrated by adsorption. It collects on the oil-water interface, forms a firm molecular film, and forms a stable emulsion. The stability of the emulsion depends on the nature of the emulsifier, the concentration, the nature of the crude oil itself, the degree of water dispersion, and the length of the emulsion formation. The mechanical strength Stirring, high concentration of emulsifier, high viscosity of crude oil and long time for emulsion formation will increase the st...
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IPC IPC(8): H02M9/06H02M7/162H02M7/5387H02M5/16H02M1/32H02J7/02C10G33/02
CPCH02M11/00H02M7/162H02M7/5387H02M5/16H02M1/32H02J7/02C10G33/02
Inventor 马宗煊黄志超
Owner XIAMEN RECH TECH