Deadbeat control of PWM inverter with modified pulse patterns for uninterruptible power supply

Kawamura, Atsuo; Chuarayapratip, R.; Haneyoshi, Toshimasa

doi:10.1109/41.192662

Cited by 121 publications

(60 citation statements)

References 7 publications

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“…The continuous models (or a simple discrete ZOH models) average the properties of the PWM modulators that are different even for a high frequency ratio (Rymarski 2007). The discrete inverter model taking in account the pulse pattern (Kawamura et al 1998, Rech et al 2003) that corresponds to the discussed continuous model should be used in the design of the digital controller. The characteristic polynomial (9) after substituting z ¼ exp(sT c ) was transformed to its discrete form Equation (10).…”

Section: Design Of the Instantaneous Discrete Inverter Controllermentioning

confidence: 99%

“…The LC filter design was previously presented separately from the controller design (Dewan and Ziogas 1979;Dahono, Purwadi and Qamaruzzaman 1995) or the LC parameters were connected with feedback parameters (Kusko, Galler and Medora 1990;Kim, Choi and Hong 2000;Ryu, Kim, Choi and Choi 2002) but the research was based on the continuous models of inverters which cannot be directly implemented in a microprocessor based controller. The papers that have presented different types of discrete instantaneous and repetitive controllers (Ben-Brahim, Yokoyama and Kawamura 2003) including choice of pulse patterns (Kawamura, Chuarayapratip andHaneyoshi 1998, Rech, Pinheiro, Grundling, Hey andPinheiro 2003) assigned filter parameters with the L/C filter ratio lower than in papers concerned with the design of an LC filter. The elimination of the output waveform distortions, when the inverter works with the rectifier R O C O load, requires an additional outer control loop with a repetitive controller (i.e.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design method of single-phase inverters for UPS systems

Rymarski¹

2009

International Journal of Electronics

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Section: Design Of the Instantaneous Discrete Inverter Controllermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design method of single-phase inverters for UPS systems

Rymarski¹

2009

International Journal of Electronics

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“…When ac currents are regulated at reference values, they are prevented from growing to destructive levels during faults. Using deadbeat control to make voltage source converters (VSCs) operate under reference current control is a frequent practice [33][34][35][36][37][38][39][40]. Most reference current control methods which depend on transforming from the a-b-c frame to the d-q frame are valid for balanced symmetrical 3-phase operation.…”

Section: Introductionmentioning

confidence: 99%

Incorporating deadbeat and low‐frequency harmonic elimination in modular multilevel converters

Wang

Ooi

2015

IET Generation, Transmission & Distribution

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This study shows that modular multilevel converter (MMC) can implement deadbeat control and harmonic elimination together. MMC, under single-phase deadbeat control, tracks the current reference exclusively, so that it is: (i) safe from large destructive currents of ac faults; and (ii) free from the odd harmonics generated by the non-linearities of MMC. As a deadbeat control cannot filter even harmonics on the dc-side, harmonic elimination has to be done by joint feedbackfeedforward methods. However, the cost saving from capacitor size reduction, made possible by the harmonic elimination, comes to naught when large ac fault currents charge the capacitors to voltage levels destructive to insulated-gate bipolar transistors. Deadbeat, in preventing the flow of large fault currents, safeguards capacitor size reduction made possible by the harmonic elimination methods. Redundant protection by the methods enhances reliability. Claims are validated by simulations by SIMULINK of MATLAB.

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“…In Reference [11], two-order Taylor series expansion was utilized to achieve faster signal propagation from input changes to all controlled states, especially the mechanical speed, and relative degree one could be obtained [12]. In References [13,14], a discretization method was proposed considering the PWM pulse patterns within each sampling period for deadbeat predictive control to obtain an accurate discrete model.…”

Section: Introductionmentioning

confidence: 99%

Prediction Error Analysis of Finite-Control-Set Model Predictive Current Control for IPMSMs

Huang

Niu

et al. 2018

Energies

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Finite-control-set model predictive current control (FCS-MPCC) has been widely investigated in the field of motor control. When the discrete motor prediction model is not obtained accurately, prediction error often occurs, which can result in improper determinations of optimal voltage vectors and can further affect the control performance of motor systems. However, papers evaluating the motor control performance employing FCS-MPCC rarely consider prediction error and its utilization to weaken the influence of inaccurate prediction model. This paper investigates in depth the prediction error caused by three influencing factors from the perspective of model accuracy-discretization method, prediction stepsize, and parameter mismatch. Firstly, the evaluation index, prediction error, is defined and its formulas considering the above three factors are derived based on interior permanent magnet synchronous motor (IPMSM). Then, the theoretical analysis of prediction error is provided. Finally, experimental results of an IPMSM drive system are presented to verify and complement the theoretical analysis. Both the theoretical analysis and experimental results fully elaborate the prediction error, which can offer practical guidelines for the evaluation and improvement of motor control performance, especially for FCS-MPCC in IPMSM applications.

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Deadbeat control of PWM inverter with modified pulse patterns for uninterruptible power supply

Cited by 121 publications

References 7 publications

Design method of single-phase inverters for UPS systems

Design method of single-phase inverters for UPS systems

Incorporating deadbeat and low‐frequency harmonic elimination in modular multilevel converters

Prediction Error Analysis of Finite-Control-Set Model Predictive Current Control for IPMSMs

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