Output voltage compensation method and voltage compensation device of inverter
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: 2021-05-14
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, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the present invention. It will be apparent, however, to one skilled in the art that the 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, specific examples are used below to illustrate.
[0035] figure 1 It is a schematic flow diagram of an implementation flow of an inverter output voltage compensation method provided by an embodiment of the present invention. In this embodiment, as shown in figure 2 As shown, the output voltage compensation method of...
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The invention is suitable for the technical field of voltage control of electronic equipment, and provides an output voltage compensation method and a voltage compensation device of an inverter. The method comprises the steps: obtaining the loading capacity of an isolation transformer, and determining a voltage compensation value according to the loading capacity; obtaining a compensated given reference value according to the voltage compensation value and the given reference value; and after the compensated given reference value passes through a given loop and a control loop, outputting a control signal to enable the inverter to work so that the load end of the isolation transformer obtains a rated value. According to the invention, the voltage compensation value is added at the input end of the given loop so that the voltage drop caused by different loading capacities on the isolation transformer is subjected to voltage compensation, and the requirement of a stable output voltage of the system is met.
Description
technical field [0001] The invention belongs to the technical field of voltage control of electric 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 side 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 side voltage of the isolation transformer. There will be a voltage drop when the isolation transformer is loaded, and the voltage drop will be different when the load is different, which leads to deviations in the output voltage of the inverter. Contents of the invention [0003] In view of this, the embod...
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IPC IPC(8): H02M7/44
CPCH02M7/44
Inventor 郭雪萌黄伟平
Owner ZHANGZHOU KEHUA TECH CO LTD