Impedance-based Stability Analysis of Servo Drive DC Bus Systems

Kiribuchi, Takeshi; Zaitsu, Toshiyuki; Doi, Masamitsu; Kusaka, Keisuke; Itoh, Jun‐ichi

doi:10.1541/ieejias.140.184

Cited by 7 publications

(4 citation statements)

References 6 publications

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“…The number of power lines and position sensor lines grows as more PMSMs are operated, which results in complicated wiring. Thus, the power lines and sensor lines should be reduced 1–3 . Position sensor lines include power lines and signal lines, and the number of sensor lines can be reduced by combining power lines with signal lines.…”

Section: Introductionmentioning

confidence: 99%

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Circuit equation in power superimposition for position sensor using single‐phase transformer on PMSM power lines

Kiribuchi,

Inoue,

Morimoto

2024

Electrical Engineering Japan

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Permanent magnet synchronous motors (PMSM) are very popular in the industrial market. Recently, robots are installed to compensate for the shortage of labor. Due to the increase in motors, the number of power lines and position sensor cable wiring are increased; this increase in complicated wiring is a problem. As a method to solve these problems, power superimposition technology in the power line of a PMSM is expected to reduce the distribution cables. In this paper, the power superposition technology method, and circuit equations of mounting transformers in power lines are presented and are then verified by experiment, simulation, and linear analysis. The circuit equation is proposed as a three‐phase circuit equation, which is transformed into a dq‐circuit equation by a transformation matrix. The characteristics of the electric angular frequency versus the dq‐axis voltage demonstrated satisfactory results, with errors within 1% in linear analysis and simulation. The linear analysis and experiment are shown to be similar, although there are some errors. The validity of the circuit equations could be demonstrated by the verification results.

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Section: Introductionmentioning

confidence: 99%

“…Thus, the power lines and sensor lines should be reduced. [1][2][3] Position sensor lines include power lines and signal lines, and the number of sensor lines can be reduced by combining power lines with signal lines. Existing power line communication (PLC) technologies are considered for this purpose.…”

mentioning

confidence: 99%

Circuit equation in power superimposition for position sensor using single‐phase transformer on PMSM power lines

Kiribuchi,

Inoue,

Morimoto

2024

Electrical Engineering Japan

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“…Therefore, stability analysis is necessary when motor loads are driven by DC power supply systems. For example, an impedance method is used for stability analysis of servo drive systems in reference [2]. In addition, in reference [3] dealing with electric railways, a closed-loop transfer function is analyzed to design damping control for resonance between the input side of an inverter-fed induction motor drive system and a filter in DC power supply system.…”

Section: Introductionmentioning

confidence: 99%

“…Inverters and other power converters are often installed near loads to provide DC power supply in various fields, including electric vehicles, 1 industrial robots, 2 electric railways, 3 and data centers 4,5 . If such power‐converting devices are controlled to output constant power, they are seen from DC input bus as constant power loads and have negative input impedance near their operating points 1 .…”

Section: Introductionmentioning

confidence: 99%

Analytical method of DC input impedance for stability analysis of IPM motor drive system

Karino,

Kato,

Inoue

2023

Elect Comm in Japan

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This paper proposes an analytical calculation method of frequency characteristics of DC input impedances of an IPM motor drive system for design and stability analysis by the impedance method. The proposed method is based on an averaged frequency model linearized at an operating point. The developed small‐signal model considers control principles and mechanical perturbations. It is an analog and digital mixed model which is controlled by a digital signal processor system. Analysis examples of frequency characteristics for the impedance method by the proposed method are investigated and validated analytically and experimentally.

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Analytical Method of DC Input Impedance for Stability Analysis of Induction Motor Drive System

et al. 2022

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Impedance-based Stability Analysis of Servo Drive DC Bus Systems

Cited by 7 publications

References 6 publications

Circuit equation in power superimposition for position sensor using single‐phase transformer on PMSM power lines

Circuit equation in power superimposition for position sensor using single‐phase transformer on PMSM power lines

Analytical method of DC input impedance for stability analysis of IPM motor drive system

Analytical Method of DC Input Impedance for Stability Analysis of Induction Motor Drive System

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