A direct deadbeat control of a PWM single-phase voltage source inverter

Iskhakov, Albert; Kobylyansky, Valery; Bekishev, Alexander; Pospelov, Vladimir; Skovpen, Sergey

doi:10.1109/epe.2013.6634336

Cited by 6 publications

(2 citation statements)

References 3 publications

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“…It is a digital controller and also has the ability to track the reference signal by generating suitable PWM pulses for switching of IGBTs. Among all digital controllers, the deadbeat controller has very fast transient response Iskhakov et al (2013). Generally, the deadbeat controller is combined with other periodic digital controllers such as repetitive and resonant controllers to improve their transient response.…”

Section: Conventional Deadbeat Controlmentioning

confidence: 99%

Digital resonant control of power converters under variable grid frequency conditions

Ijaz,

Nazir,

Alhussein

et al. 2023

Front. Energy Res.

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Introduction: The proportional resonant (PR) controller is known for its ability to effectively regulate sinusoidal current and voltage with low steady-state error. However, in the context of digital power systems, where operations are discrete in time, applying conventional PR controllers directly presents challenges. This study investigates the impact of various discretization methods on the performance of PR controllers, particularly under scenarios with varying reference frequencies.Methods: To assess the performance of digital PR controllers under varying reference frequency conditions, three discretization techniques are employed: zero-order hold (ZOH), impulse invariant (II), and zero pole matching (ZPM), in addition to the conventional deadbeat controller. These controllers are tested in conjunction with a single-phase pulse-width modulated (PWM) inverter, which is a crucial component in modern power systems.Results: Simulation results indicate the effectiveness of the different digital PR controllers in tracking both fixed and variable reference frequency signals while minimizing total harmonic distortion (THD) and steady-state error. When utilizing only the deadbeat controller, steady-state error and THD are measured at 4.9 V and 4.82%, respectively. However, the proposed ZPM-based digital PR controller significantly improves performance, reducing steady-state error to 0.12 V and THD to 0.45%, highlighting its superior performance.Discussion: The findings of this study emphasize the importance of choosing the appropriate discretization method when implementing PR controllers in digital power systems. The ZPM-based digital PR controller proves to be highly efficient in regulating power converters under varying grid frequency conditions. This research contributes to the understanding of digital PR controller behavior and its potential for improving power system performance, especially in scenarios with intermittent renewable energy resources and fluctuating grid frequencies.

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Section: Conventional Deadbeat Controlmentioning

confidence: 99%

Digital resonant control of power converters under variable grid frequency conditions

Ijaz,

Nazir,

Alhussein

et al. 2023

Front. Energy Res.

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“…At the same time, the robust performance of the system is improved. In document [6], a new deadbeat control is proposed, which can maintain good dynamic performance when the start or load changes. Document [7] proposed an improved deadbeat direct power control, which made the system's dynamic and steady-state performance very good, and realized the decoupling control of active power and reactive power.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Deadbeat Control for PV Converter

Zhang¹,

Zeng²,

Zhang³

et al. 2018

Proceedings of the 2017 2nd International Conference on Electrical, Control and Automation Engineering (ECAE 2017)

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Abstract-In this paper, the deadbeat control of singlephase photovoltaic(PV) grid connected converter is studied, and the mathematical model of the control model is derived. The application of a large number of power electronic equipment will be reduced, considering the direct power supply of the DC load by the distributed power supply. In this paper, distributed generation is used as photovoltaic power generation system. It adopts maximum power point tracking control(MPPT), and sends part of power directly to DC load. The surplus power is transported to the grid, which not only ensures the maximum efficiency of energy, but also reduces the cost. In addition, this paper gives the real time calculation formula of inductance, and realizes the more precise control of the system by calculating the inductance on line. Finally, the system has been simulated and verified with Simulink.

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