Inverter output voltage compensation method and voltage compensation device
An output voltage and compensation method technology, applied in the field of inverter output voltage compensation method and voltage compensation device, can solve problems such as output voltage deviation of uninterruptible power supply, and achieve the effect of satisfying output voltage
Active Publication Date: 2022-06-28
ZHANGZHOU KEHUA TECH CO LTD +1
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[0003] In view of this, the embodiment of the present invention provides an inverter output voltage compensation method and a voltage compensation device, aiming to solve the problem of uninterruptible power supply output in the prior art after the output terminal of the inverter is connected to an isolation transformer. The problem of voltage deviation
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[0033] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are set forth in order to provide a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0034] In order to illustrate the technical solutions of the present invention, the following specific embodiments are used for description.
[0035] figure 1 This is a schematic diagram of an implementation flowchart of an output voltage compensation method of an inverter provided by an embodiment of the present invention. In this embodiment, as figure 2 As shown, the...
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The present invention is applicable to the technical field of voltage control of electronic equipment, and provides an inverter output voltage compensation method and a voltage compensation device. The method includes: obtaining the carrying capacity of the isolation transformer, and according to the carrying capacity , determine the voltage compensation value; obtain a compensated given reference value according to the voltage compensation value and the given reference value; pass the compensated given reference value through the given loop and the control loop Afterwards, a control signal is output to control the operation of the inverter, so that the load end of the isolation transformer obtains a rated value. The invention increases the voltage compensation value at the input end of the given loop to perform voltage compensation on the voltage drop caused by different loads on the isolation transformer, so as to meet the requirement of stable output voltage of the system.
Description
technical field [0001] The invention belongs to the technical field of voltage control of electrical and electronic equipment, and in particular relates to an output voltage compensation method and a voltage compensation device of an inverter. Background technique [0002] Due to the market demand for inverters, on the basis of high-frequency UPS, the output end is connected to an isolation transformer. After adding the isolation transformer, the secondary voltage of the isolation transformer is the output voltage of the actual UPS, and it is necessary to ensure that the output voltage is stable at 220V / 50Hz. However, the sampling voltage of the system is the primary voltage of the isolation transformer. When the isolation transformer is loaded, there will be a voltage drop, and when the load is different, the voltage drop will also be different, so the output voltage of the inverter will be biased. SUMMARY OF THE INVENTION [0003] In view of this, embodiments of the pre...
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IPC IPC(8): H02M7/44
CPCH02M7/44
Inventor 郭雪萌黄伟平
Owner ZHANGZHOU KEHUA TECH CO LTD