Deadbeat controlled PWM inverter with parameter estimation using only voltage sensor

Kawamura, Atsuo; Haneyoshi, Toshimasa; Hoft, R.G.

doi:10.1109/pesc.1986.7415609

Cited by 21 publications

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“…Control technique based on dead beat control theory is discussed in [8] using only a voltage sensor and advantages and disadvantages of five different pwm schemes are highlighted in [9].A comprehensive analysis of VSI with respect to phase and amplitude has been presented in [10]. In the proposed method, unipolar and bipolar PWM techniques are used to analyze the output of single phase H-bridge inverter.…”

Section: Introductionmentioning

confidence: 99%

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2017

International Journal of Innovative Research in Electrical, Ele

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Abstract:In this paper we present, harmonic analysis of single phase inverter based on unipolar pwm and bipolar pwm techniques. Simulation results of both the methods are also highlighted. In order to find the Total Harmonic Distortion (THD), FFT is used using mat lab/simulation software. It is found that performance of unipolar switching technique is better than bipolar switching technique in comparison of THD. It is observed that minimum value of THD of unipolar switching technique is 5.28 % and Bipolar switching technique is 11.03 % in case of amplitude modulation. Also in the case of frequency modulation we get 5.52% and 7.72% respectively.

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Section: Introductionmentioning

confidence: 99%

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2017

International Journal of Innovative Research in Electrical, Ele

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“…The single-phase inverters in stationary battery cell power generation systems have been installed worldwide in case of utility power failures and are widely used in delivering backup power to critical loads, such as for computers and life-support systems in hospitals, hotels, office buildings, schools, utility power plants, and even in airport terminals, as well as in communication systems [5]. In industry, the total harmonic distortion voltage (THD v ) should not exceed 5%, as per the guidelines given in IEEE Standard 519-1992.…”

Section: Introductionmentioning

confidence: 99%

Modeling and simulation of deadbeat-based PI controller in a single-phase H-bridge inverter for stand-alone applications

Tiang¹,

Ishak²

2014

Turk J Elec Eng & Comp Sci

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This paper presents a deadbeat-based proportional-integral (PI) controller for a stand-alone single-phase voltage source inverter using a battery cell as the primary energy source. The inverter system is simulated in MAT-LAB/Simulink. It consists of a lead acid battery, third-order Butterworth low-pass DC filter and AC filter, H-bridge inverter, step-up transformer, and a variety of loads, as well as its sinusoidal pulse-width modulation (SPWM) deadbeatbased PI controller. In this paper, 2 simulation case studies are carried out, which are the abrupt load changes from a 400 W resistive load to a 500 W resistive load, and from a 400 W resistive load to an inductive load of 500 W 0.85 power factor lagging. From the simulation results for both cases, the state-of-charge of the battery decreases due to supplying power to the loads, yet the battery voltage remains constant at about 36 V and the battery current exhibits a smooth ripple despite the current spikes produced by the H-bridge inverter, which will prolong the lifespan of the battery.This shows that the DC filter performs satisfactorily to isolate the current spikes generated by the SPWM controller and H-bridge inverter. Moreover, even though the load varies for both cases, the sinusoidal inverter output voltage can be tracked and maintained at 230 V rms with a 50 Hz frequency within a few cycles from the instant that the load is changed, as well as a low total harmonic distortion voltage (THD v ) content of 1.53% and 2.78%, respectively. This indicates that the controller proves its robustness and stiffness characteristics in maintaining the output load voltage at the desired value to supply the power for a variety of loads with a minimum THD v .

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“…Vários circuitos integrados comerciais para geração de PWM [61] O estudo da robustez de controladores baseados na estratégia dead-beat já foi abordado por [5] e [23]. Deseja-se saber o que ocorre com a estabilidade e com o desempenho do sistema quando os parâmetros do modelo da planta diferem da planta real, tais como a impedância da rede CA [6] e a impedância do filtro de acoplamento [23], o que pode ser agravado com o uso de estimadores da tensão de rede [32].…”

Section: Equação 20unclassified

“…Deseja-se saber o que ocorre com a estabilidade e com o desempenho do sistema quando os parâmetros do modelo da planta diferem da planta real, tais como a impedância da rede CA [6] e a impedância do filtro de acoplamento [23], o que pode ser agravado com o uso de estimadores da tensão de rede [32].…”

Section: Equação 20unclassified

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Retificador trifásico com elevado fator de potência.

Junqueira¹

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RESUMOEste trabalho trata da retificação trifásica com elevado fator de potência. São mostradas algumas soluções encontradas na literatura. Dentre elas, optou-se pela utilização de um conversor trifásico autocomutado do tipo fonte de tensão (VSC), operando em modulação em largura de pulso (PWM). Apresenta-se a modelagem do conversor, que é utilizado para o projeto dos controladores responsáveis pelo rastreamento das correntes da rede CA e pela regulação da tensão CC. O projeto do controlador das correntes CA, baseado na estratégia de dead-beat, é mostrado de forma simples e intuitiva e é discutida a estabilidade deste controlador. O projeto do controlador PI utilizado para a regulação da tensão CC é baseado no modelo linearizado do conversor. É utilizado um algoritmo simples e eficiente para o bloco PLL, baseado na estratégia "dead-beat". O comportamento do sistema completo é verificado teoricamente, por simulações numéricas e resultados experimentais, confirmando o excelente desempenho das estratégias de controle e do método de projeto propostos. São discutidos ainda os efeitos da variação nos parâmetros no desempenho e na estabilidade do sistema.

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Deadbeat controlled PWM inverter with parameter estimation using only voltage sensor

Cited by 21 publications

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Modeling and simulation of deadbeat-based PI controller in a single-phase H-bridge inverter for stand-alone applications

Retificador trifásico com elevado fator de potência.

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