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    DEAD-TIME VOLTAGE COMPENSATION APPARATUS AND DEAD-TIME VOLTAGE COMPENSATION METHOD
    2.
    发明申请
    DEAD-TIME VOLTAGE COMPENSATION APPARATUS AND DEAD-TIME VOLTAGE COMPENSATION METHOD 审中-公开

    公开(公告)号：US20200127556A1

    公开(公告)日：2020-04-23

    申请号：US16211551

    申请日：2018-12-06

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Yoshihiro Konishi ,  Yeh-Hsiang Ho

    IPC: H02M1/38 ,  H02M7/5387

    Abstract: A dead-time voltage compensation apparatus and a dead-time voltage compensation method are provided. The method includes: converting a DC voltage of an input end of a single-phase DC-AC inverter into a unipolar AC voltage; calculating first to third current values based on a first inductor current value of a inductor, calculating first voltage compensation amounts of a first dead-time and a third dead-time of an AC voltage and a second inductor current value of the AC voltage based on polarities of the first to third current values, calculating fourth to sixth current values based on the second inductor current value, calculating second voltage compensation amounts of a second dead-time and a fourth dead-time of the AC voltage based on polarities of the fourth to sixth current values, and compensating a control reference signal of a processor based on the first and second voltage compensation amounts.

    Dead-time voltage compensation apparatus and dead-time voltage compensation method
    3.
    发明授权
    Dead-time voltage compensation apparatus and dead-time voltage compensation method 有权

    公开(公告)号：US10666131B2

    公开(公告)日：2020-05-26

    申请号：US16211551

    申请日：2018-12-06

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Yoshihiro Konishi ,  Yeh-Hsiang Ho

    IPC: H02M7/5387 ,  H02M1/38 ,  H02M1/00

    Abstract: A dead-time voltage compensation apparatus and a dead-time voltage compensation method are provided. The method includes: converting a DC voltage of an input end of a single-phase DC-AC inverter into a unipolar AC voltage; calculating first to third current values based on a first inductor current value of a inductor, calculating first voltage compensation amounts of a first dead-time and a third dead-time of an AC voltage and a second inductor current value of the AC voltage based on polarities of the first to third current values, calculating fourth to sixth current values based on the second inductor current value, calculating second voltage compensation amounts of a second dead-time and a fourth dead-time of the AC voltage based on polarities of the fourth to sixth current values, and compensating a control reference signal of a processor based on the first and second voltage compensation amounts.

    VOLTAGE BALANCE CONTROL METHOD AND DEVICE FOR THREE-PHASE DC-AC INVERTER
    4.
    发明申请
    VOLTAGE BALANCE CONTROL METHOD AND DEVICE FOR THREE-PHASE DC-AC INVERTER 审中-公开

    公开(公告)号：US20190131884A1

    公开(公告)日：2019-05-02

    申请号：US16166373

    申请日：2018-10-22

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Meng-Yi Lin ,  Yoshihiro Konishi ,  Zong-Zhen Yang

    IPC: H02M7/217 ,  H02M7/162 ,  H02M7/219

    Abstract: A voltage balance control method applicable to a three-phase DC-AC inverter is provided, the voltage balance control method including: multiplying, by a first multiplier, an actual value of a line capacitance voltage by a sine function to generate a first voltage; capturing, by a first filter, a DC part of the first voltage to generate an error DC component; subtracting, by a first subtractor, the error DC component from a target voltage amplitude to generate a second voltage; adjusting, by a first proportional-integral controller, the second voltage to generate an amplitude error compensation value; and adding, by an adder, the amplitude error compensation value with the target voltage amplitude to generate an amplitude reference value. A voltage balance control device applicable to a three-phase DC-AC inverter is also provided.

    Voltage compensating method for converter
    6.
    发明授权
    Voltage compensating method for converter 有权

    公开(公告)号：US09614460B2

    公开(公告)日：2017-04-04

    申请号：US14566386

    申请日：2014-12-10

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Shu-Syuan Huang ,  Yoshihiro Konishi

    IPC: H02M7/538 ,  H02M7/5387 ,  H02M1/38

    CPC classification number: H02M7/53871 ,  H02M2001/385

    Abstract: A voltage compensating method is applied to a converter for converting a DC voltage into an AC voltage. The converter includes a first switch module, a second switch module, and an inductor. In a first dead time period, detect a first current value related to the inductor. According to the first current value, calculate a second current value and a third current value related to the inductor. According to polarities of the first, second and third current values, determine an output mode of the converter indicating a voltage compensation model after the first dead time period. According to the voltage compensation model, the first current value, and the second current value or the third current value, calculate a voltage compensation value. In a second dead time period, adjust a switching time for the first switch module and the second switch module according to the voltage compensation value.

    DC-AC inverter system using state observer and control method thereof
    7.
    发明授权
    DC-AC inverter system using state observer and control method thereof 有权

    公开(公告)号：US11757375B2

    公开(公告)日：2023-09-12

    申请号：US17719789

    申请日：2022-04-13

    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

    Inventor： Wan-Pei Chen ,  Yoshihiro Konishi ,  Kuan-Wen Chen ,  Yeh-Hsiang Ho ,  Wan-Ju Ho

    IPC: H02M7/5387 ,  H02M1/00 ,  H02M1/14

    CPC classification number: H02M7/53871 ,  H02M1/0009 ,  H02M1/14 ,  H02M7/53873

    Abstract: A DC-AC inverter system using a state observer and a control method thereof are provided. The control method of the DC-AC inverter system includes the following steps. The state observer outputs a filter-capacitor-current estimation value at a next sampling time according to a DC link voltage at a current sampling time and a filter-capacitor-voltage actual value at the current sampling time. The filter-inductor-current estimation value at the next sampling time is compared with the filter-capacitor-current estimation value at the next sampling time to obtain a load current estimation value at the next sampling time. An inductor voltage estimator outputs a filter-inductor-voltage estimation value at the next sampling time according to the load current estimation value at the next sampling time. A feed-forward control is performed according to the filter-inductor-voltage estimation value at the next sampling time.

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