Dead-time compensation strategy for permanent magnet synchronous motor drive taking zero-current clamp and parasitic capacitance effects into account

Urasaki, Naomitsu; Senjyu, Tomonobu; Kinjo, Tadatsugu; Funabashi, Toshihisa; Sekine, Hideomi

doi:10.1049/ip-epa:20045123

Cited by 81 publications

(54 citation statements)

References 11 publications

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“…Inverter voltage errors are caused by various effects [12]: forward voltage and differential resistance of diodes and switches, switching time and switching behaviour, dead-times, minimal on-and off-times and current zero-clamping.…”

Section: Machine and Inverter Modelmentioning

confidence: 99%

Improving dynamics of repetitive control based current harmonic mitigation in inverter-fed permanent magnet synchronous machines with nonlinear magnetics

Richter¹,

Doppelbauer²

2016

8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

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Inverter nonlinearities and machine spatial harmonics yield unwanted machine current harmonics causing noise, vibration, additional losses and torque ripples. In this paper the dynamics of a repetitive control based mitigation method are analysed. The proposed scheme identifies voltage errors and compensates their effects online for interior permanent magnet synchronous machines with nonlinear magnetics. It requires no additional sensors and only fundamental machine model parameters. Test bench measurements of maximal torque inversion and variable speed operation proof the fast convergence of the developed algorithm. Current harmonic mitigation is reached after several electric periods and in the time range of 100 ms during typical operational conditions. The functional principle is transferable to other machine types or grid applications enabling fast and precise mitigation of current harmonics in a wide field of applications.

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Section: Machine and Inverter Modelmentioning

confidence: 99%

Improving dynamics of repetitive control based current harmonic mitigation in inverter-fed permanent magnet synchronous machines with nonlinear magnetics

Richter¹,

Doppelbauer²

2016

8th IET International Conference on Power Electronics, Machines and Drives (PEMD 2016)

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“…The deadtime voltage error including the ZCC effect has the form [10] T -T1 Vd = Tcn tr Vdc() where Tc, is an effective deadtime considering the IGBT parameters, Ttr indicates an equivalent trailing time due to the parasitic capacitance of IGBT around the zero current region, Ts represents a sampling period, and Vdc denotes a DC-link voltage. Fig.…”

Section: Modeling Of the Zero Current Clamping Effectmentioning

confidence: 99%

Minimization of Rotor Position Detection Error Due to Zero-Current-Clamping Effect in Pulsating Carrier-Signal Injection-Based Sensorless Drives

Kwon

Choi

Seok

2007

APEC 07 - Twenty-Second Annual IEEE Applied Power Electronics Conference and Exposition

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This paper presents a minimization technique of the position detection error resulting from the zero current clamping (ZCC) effect for pulsating high-frequency (HF) signal injectionbased sensorless drives. An analytical model is derived to obtain an accurate map of the ZCC effect of the PWM inverter. This model is universally agreed upon and subsequently incorporated into the development of a specialized offline commissioning test to identify the detailed model parameters. The proposed algorithm combines an offline commissioning approach and an online feedforward compensation in the stationary reference frame to achieve the minimal position error. Experiments illustrate the effectiveness of the proposed method in suppressing the position error caused by the ZCC disturbance.

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“…A more complete model including switching node commutation is used in [6] and [7] but both are designed for 3 phase machines and require significant computation time.…”

Section: Introductionmentioning

confidence: 99%

Dead-time compensation for PWM amplifiers using simple feed-forward techniques

Schellekens

Bierbooms

Duarte

2010

The XIX International Conference on Electrical Machines - ICEM 2010

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Dead-time effect is one of the dominant sources of output current and voltage distortion for pulse width modulated (PWM) amplifiers. Practical switching devices have finite turnon and turn-off time. To avoid short circuit a blanking time is added between turn-off and turn-on of the complementary working switches in a switching-leg. The blanking time, also referred to as dead-time, results in a nonlinear voltage error of the PWM output stage. Especially high-precision applications that require accurate input current for positioning systems suffer from the dead-time effect. Extensive studies have been done on the analysis and elimination, minimization and compensation of dead-time in PWM converters. Most of these techniques rely on the detection of the polarity of the output current of the converter. By using only the polarity of the output current, the inductor current ripple is neglected, which is not sufficient for high-precision applications. In this paper nonlinear feedforward of the current setpoint is used to compensate the dead-time effect. This simple feedforward technique leads to significant improvement of the current tracking during zero crossings over a high output current frequency range, as demonstrated by measurement results.

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Dead-time compensation strategy for permanent magnet synchronous motor drive taking zero-current clamp and parasitic capacitance effects into account

Cited by 81 publications

References 11 publications

Improving dynamics of repetitive control based current harmonic mitigation in inverter-fed permanent magnet synchronous machines with nonlinear magnetics

Improving dynamics of repetitive control based current harmonic mitigation in inverter-fed permanent magnet synchronous machines with nonlinear magnetics

Minimization of Rotor Position Detection Error Due to Zero-Current-Clamping Effect in Pulsating Carrier-Signal Injection-Based Sensorless Drives

Dead-time compensation for PWM amplifiers using simple feed-forward techniques

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