Modular Multilevel Converter Based STATCOM Topology Suitable for Medium-Voltage Unbalanced Systems

Pirouz, Hassan Mohammadi; Bina, Mohammad Tavakoli

doi:10.6113/jpe.2010.10.5.572

Cited by 36 publications

(19 citation statements)

References 17 publications

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“…All of the possible modes together with the output voltage is obtained according to (6) - (7) and shown in Table I. In some previous papers, multilevel converters were proposed because of higher reliability and lower output harmonics [15], [16].…”

Section: B Inverter Modelmentioning

confidence: 99%

Model Predictive Control of STATCOM for Grid Voltage Regulation

Kadivarian¹,

Bina²,

Akbari³

2017

REPQJ

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Abstract. In this paper, a predictive control method known as FS-MPC is raised to adjust the grid voltage by STATCOM. The FS-MPC control strategy is easy to implement that considers nonlinearities and limitations as well. In this way, the system model is used to predict the current behavior in the next sampling period for each possible switching mode. The STATCOM is simulated using the FS-MPC control method by MATLAB SIMULINK, and compared to conventional PI-controller accompanied with the PWM. The results of simulations represent considerable improvement in the performance of the FS-MPC control method for adjusting the grid voltage variations.

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Section: B Inverter Modelmentioning

confidence: 99%

Model Predictive Control of STATCOM for Grid Voltage Regulation

Kadivarian¹,

Bina²,

Akbari³

2017

REPQJ

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“…According to (1), the available pulse voltage V ab can be generated in the case of harmonious switching of the four power switches Q 1~Q4 , namely the switching state "S 1 S 2 S 3 S 4 ." Assuming that the inductor current i L is continuous, there are six operation modes of the proposed converter, as shown in Fig.…”

Section: Operational Principles Of the Proposed Convertermentioning

confidence: 99%

“…With the development of power electronics techniques, there has been a growing interest in multilevel converters for high power and high voltage applications [1]- [6]. Basically, there are three types of multilevel inverters for dc-ac applications: diode-clamped inverters, flying-capacitor inverters, and cascaded H-bridge inverters [7]- [9].…”

Section: Introductionmentioning

confidence: 99%

Transformerless Three-Level DC-DC Buck Converter with a High Step-Down Conversion Ratio

Zhang¹,

Sun²,

Wang³

et al. 2013

Journal of Power Electronics

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For high power high step-down dc-dc conversion applications, conventional three-level dc-dc converters are subject to extreme duty cycles or increased volume and cost due to the use of transformers. In this paper, a transformerless three-level dc-dc buck converter with a high step-down conversion ratio is proposed. The converter comprises two asymmetrical half bridges, which are of the neutral point clamped structures. Therefore, the output pulse voltage of the converter can be obtained in terms of the voltage difference between the two half bridges. In order to realize harmonious switching of the converter, a modulation strategy with capacitor voltages self balance is presented. According to the deduced output dc voltage function, transformerless operation without extreme duty cycles can be implemented. Experimental results from a 1kW prototype verify the validity of the proposed converter. It is suitable for ship electric power distribution systems.

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“…This makes the controller the DVR can function admirably at time interims extremely short.DVR Control strategy manufactured neural system controller Narma-L2 demonstrated change without voltage plunges the transient voltage spikes. Plan calculation for dynamic control voltage restorer (DVR) is proposed by utilizing manufactured neural system (ANN) counter spread (CP), on the grounds that with this strategy to play out the emphasis procedure, preparing and reaction speedier [4,5].…”

Section: Introductionmentioning

confidence: 99%