Inverter loss management for an electrical high-speed drive system

Peter, Klaus; Hanke, Sören; Mink, Fabian; Böcker, Joachim

doi:10.1109/epe.2016.7695587

Cited by 6 publications

(3 citation statements)

References 11 publications

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“…Hence, special sinus output filters (LC-Filter) to reduce the current and voltage harmonics are required. Thus, the system gets larger, more expensive, and more complex to control [21].…”

Section: Overview On Challenges Of Low F S /F El Ratiomentioning

confidence: 99%

Dahlin-Based Fast and Robust Current Control of a PMSM in Case of Low Carrier Ratio

et al. 2019

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The low ratio of sampling frequency to electrical frequency (carrier ratio) is a challenging issue for applications, such as high-speed or high-power drives. In fact, high-speed drives have high fundamental frequency and high-power drives have low switching (sampling) frequency, leading to the same control challenges of having high dynamic and stability with a limited number of control actions in one period. Parameters mismatch occurs due to the converter non-linearities, deadtimes, temperature change, and saturation; hence, providing robust control is a key challenge. This paper starts reviewing the problems of controlling machines with a few switching instances per fundamental period and an analysis of the stateof-the-art current control strategies for permanent magnet synchronous motors (PMSMs). Three different control schemes are analyzed. The discrete-time PI current controller is providing good robustness, while the dynamic performance may not be sufficient for some applications. Second, the deadbeat control offers very fast dynamic performance but is weak under parameter mismatch. The novel application of the Dahlin controller offers a tradeoff between performance and stability. The control algorithms are evaluated based on the stability, robustness, and dynamic and steady-state performances. Their performance and sensitivity to parameter variation are analyzed through simulations, and the experimental measurements are proving the results.INDEX TERMS Dahlin control, deadbeat control, pulse ratio, electric drive, PMSM, current control, pulse-width modulated power converter.The growing research interest in high-speed machines can be observed by the high number of publications in this research area. Rising attention is given to topics related to the hardware for motor drive systems with high-speed machines, such as the machine itself, the converter, the motor filters, as well as research related to the software, i.e. the control or observer design [1]-[4]. For many applications like pumps, fans, or automotive, high-speed machines are becoming more and more popular [5]. Machines up to speed of one Million r/min or a rated power of one Gigawatt are available today [2], [6]. The permanent magnet synchronous machine is the first choice for many applications due to its compact size, high power density and good efficiency.The associate editor coordinating the review of this manuscript and approving it for publication was Ton Do.

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“…Hence, special sinus output filters (LC-Filter) to reduce the current and voltage harmonics are required. Thus, the system gets larger, more expensive, and more complex to control [21].…”

Section: Overview On Challenges Of Low F S /F El Ratiomentioning

confidence: 99%

Dahlin-Based Fast and Robust Current Control of a PMSM in Case of Low Carrier Ratio

et al. 2019

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“…Nowadays increasing attention has been paid to high speed induction and permanent magnet sychronous machines (PMSMs) [1], [2], [3], [4], [5]. The high rated fundamental frequency f 1 (from few hundred up to thousand Hz) and the limited carrier (switching) frequency f c (≤ 15−25 kHz) result in low m f = f c /f 1 frequency ratios (usually m f < 21).…”

Section: Introductionmentioning

confidence: 99%

“…The goal of the current paper is to extend the method to three-level voltage source inverter (3L-VSI) for the whole modulation region. In the literature, to calculate optimal switching angles quarter-wave symmetry is typically assumed and the switching angles are calculated for 0 − π 2 range [2], [3], [7], [11], [16], [17], [19]. In the current paper 60 • vector (voltage, current, etc.)…”

Section: Introductionmentioning

confidence: 99%

Optimal PWM for Three-Level Inverter fed High Speed Drives

Stumpf

Halasz

2019

2019 IEEE 13th International Conference on Power Electronics and Drive Systems (PEDS)

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Thanks to new field of applications, like high speed/high-pole drives with high rated fundamental frequency or multilevel converters powering medium or high voltage drive systems, optimized PWM techniques became again a hot topic of research interest. The current paper introduces an optimized PWM technique for three-level inverter, which can be applied to supply high speed drives at low pulse ratio. The optimization is done for the lowest loss-factor, which is proportional to the square of rms value of current harmonics. The performance of the optimal PWM technique is demonstrated by simulation and experimental tests by using a NPC type inverter.

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