Industrial application of variable speed drive system for high speed in megawatt power range

Odegard, B.; Stulz, C.A.; Steimer, P.K.

doi:10.1109/ias.1994.345464

Cited by 7 publications

(6 citation statements)

References 1 publication

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“…Third, different modulation and control schemes are usually required to afford better performance for the drive at different conditions. A high-speed CSC-based drive with quasi-square operation has been studied in [13]. However, only the steady-state performance of the drive at rated speed was discussed.…”

Section: A Current-source-converter-based High-powermentioning

confidence: 99%

A Current-Source-Converter-Based High-Power High-Speed PMSM Drive With 420-Hz Switching Frequency

Wang

et al. 2012

IEEE Trans. Ind. Electron.

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In this paper, a current-source-converter (CSC)-based high-power high-speed (HPHS) permanent-magnet synchronous motor drive is proposed for high-speed compressor applications. The most important feature of the proposed CSC-fed HPHS drive is that the switching frequency is limited to 420 Hz at 200-Hz fundamental frequency. In the drive system, the whole operation range is divided into three regions, namely, the high-, medium-, and low-speed regions, where different modulation strategies and control schemes are used with the requirement of switching frequency and output filter. In particular, a two-pulse space vector modulation with dynamic capacitor voltage control is proposed for the high-speed region to achieve better dynamic and harmonic performance. Both simulation and experiments verify the proposed control strategy.Index Terms-Current-source converter (CSC), high power, high-speed drive, LC resonance.

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Section: A Current-source-converter-based High-powermentioning

confidence: 99%

A Current-Source-Converter-Based High-Power High-Speed PMSM Drive With 420-Hz Switching Frequency

Wang

et al. 2012

IEEE Trans. Ind. Electron.

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“…Basically, in the VSD installation design, the best method is to identify the water usage required to the system. Then, from the water demand, the basic study on the sequence of motor pump needs to be conducted to verify the motor performance [12,13]. In addition, the parameters involved in calculating the motor capacity will reflect to the output performance of motor itself.…”

Section: Problem Solvingmentioning

confidence: 99%

Performance study in energy efficiency on variable speed drive, VSD design for serting high lift pumping station

Baharom

Jali

Nasir

et al. 2014

2014 International Symposium on Technology Management and Emerging Technologies

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This paper describes the performances of variable speed Drive, VSD to enhance energy consumption in Water Treatment Plant. This study is focus on the comparisons between variable Speed Drive, VSD and RVSS to assess the pumping performance as well as energy efficiency in the WTP system. Based on the Layne Bowler pump characteristic, it clearly proved that the VSD is more reliable in term of speed and energy usage compared to RVSS. As results, by using VSD it will bring a lot of benefits for long term application and gives a lot of saving in ROI.

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“…When braking happens, the effect is equivalent to adding an additional equal-amplitude voltage sources to the motor terminals, whose direction is reverse to the original output threephase voltage. Regardless of the contributions of harmonic components in output voltage, the fundamental phase voltage Uao before braking is expressed in (1). Um stands for the amplitude of Ua0, Yo is the original phase angle, and co is the angular frequency.…”

Section: Principle Of Short-circuit Brakingmentioning

confidence: 99%

“…Um stands for the amplitude of Ua0, Yo is the original phase angle, and co is the angular frequency. uao = Um cos(2)t + 7o) (1) When three-phase short circuit suddenly appears, the stator current is approximately expressed by (2) [7]. x and x' are the equivalent steady and transient reactance on the stator side.…”

Section: Principle Of Short-circuit Brakingmentioning

confidence: 99%

“…Medium voltage adjustable speed drive (MV-ASD) systems offer significant advantages in fans, pumps and many process control applications with higher efficiency and more energy savings over a wide range of speed settings [1]. In the medium voltage area, because of voltage level limitation of the switching devices, the inverter structure usually takes multi-level structures: the Neutral-Point Clamped (NPC) inverters [2]and the converters with series DC-cells supplied by multi-windings transformers [3].Three-level NPC inverter with IGCT devices is one of the most popular voltage source inverter (VSI) structures, and it fulfills the requirements of standard supply transformer and few power components.…”

Section: Introductionmentioning

confidence: 99%

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Simulation, Test and Analysis of Three-phase Short-Circuit Braking in IGCT-based MV Adjustable Speed Drive Systems

Zhang

Zhao

Yuan

et al. 2005

2005 International Conference on Electrical Machines and Systems

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In the medium voltage adjustable speed drive (MV-ASD) systems, low switching frequency results in high harmonics in the output voltage waveform, which is harmful to the isolation of the induction motor. Therefore, the power filter is usually set between inverter and motor. However, self-excitation oscillation easily occurs under this structure due to the filter capacitor, which could continuously bring up the DC-link voltage of the inverter, and even destroy the devices in inverters. One of the effective ways to eliminate the self-excitation oscillation is to set the inverter to threephase short-circuit braking state, which is described and analyzed in detail in this paper. Three-phase short-circuit braking could be easily realized in the inverter-motor system. It can be verified by both simulation based on PSIM and test results that this is an efficient way in real applications. Finally, the characteristics of the short-circuit braking is summarized and beneficial suggestions on using this braking method are presented.

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Industrial application of variable speed drive system for high speed in megawatt power range

Cited by 7 publications

References 1 publication

A Current-Source-Converter-Based High-Power High-Speed PMSM Drive With 420-Hz Switching Frequency

A Current-Source-Converter-Based High-Power High-Speed PMSM Drive With 420-Hz Switching Frequency

Performance study in energy efficiency on variable speed drive, VSD design for serting high lift pumping station

Simulation, Test and Analysis of Three-phase Short-Circuit Braking in IGCT-based MV Adjustable Speed Drive Systems

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