Multigoal Heuristic Model Predictive Control Technique Applied to a Cascaded H-bridge StatCom

Townsend, Christopher D.; Summers, T. J.; Betz, R.E.

doi:10.1109/tpel.2011.2165854

Cited by 99 publications

(33 citation statements)

References 25 publications

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“…This paper extends previous work by further developing an MPC scheme [14] to optimise the trade-off between harmonic performance and switching losses. A new model of the capacitor voltage balancing is described.…”

Section: Introductionsupporting

confidence: 56%

“…2 is a block diagram of the scheme used to control the H-StatCom. The details of the outer control loops that are responsible for generating the current references have been presented in [14] and will not be repeated here. The desired output voltages, which are calculated by the deadbeat controller, are used directly within the 'MPC' block.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimization of Switching Losses and Capacitor Voltage Ripple Using Model Predictive Control of a Cascaded H-Bridge Multilevel StatCom

Townsend

Summers

Vodden

et al. 2013

IEEE Trans. Power Electron.

123

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. Abstract-This paper further develops a Model Predictive Control (MPC) scheme which is able to exploit the large number of redundant switching states available in a multi-level H-bridge StatCom (H-StatCom). The new sections of the scheme provide optimised methods to trade off the harmonic performance with converter switching losses and capacitor voltage ripple. Varying the pulse placement within the modulation scheme and modifying the heuristic model of the voltage balancing characteristics allows the MPC scheme to achieve superior performance to that of the industry standard phase shifted carrier modulation technique. The effects of capacitor voltage ripple on the lifetime of the capacitors is also investigated. It is shown that the MPC scheme can reduce capacitor voltage ripple and increase capacitor lifetime. Simulation and experimental results are presented that confirm the correct operation of the control and modulation strategies.

show abstract

Section: Introductionsupporting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Optimization of Switching Losses and Capacitor Voltage Ripple Using Model Predictive Control of a Cascaded H-Bridge Multilevel StatCom

Townsend

Summers

Vodden

et al. 2013

IEEE Trans. Power Electron.

123

View full text Add to dashboard Cite

show abstract

“…In literature [14], [15], adaptive control and linear booming clout have been reported for their anti-external disturbance ability. In literature [16]- [17], a popular dead-beat current controller is used. This control method has the high bandwidth and the agile allusion current tracking speed.…”

Section: Introductionmentioning

confidence: 99%

Power Quality Improvement Using Multi-level Inverter based DVR and DSTATCOM Using Neuro-fuzzy Controller

Ramya¹,

Ganapathy²,

Suresh³

2017

IJPEDS

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STATCOM is one of the shunt type FACTS controllers which can supply reactive power and improve bus voltage. STATCOM, a controlling device used on alternating current transmission networks, has advantages like transient free switching and smooth variation of reactive power. This paper proposes a cascaded multilevel inverter type DSTATCOM and DVR to compensate voltage sag in utilities in power distribution network. The proposed DSTATCOM is implemented using multilevel topology with isolated dc energy storage and reduced number of switches. A DVR injects a voltage in series with the system voltage and a D-STATCOM implant a current into the system to correct the voltage sag, swell and interruption. The phase shifter PWM technique is described to generate firing pulse to cascaded inverter. The proposed neuro-fuzzy controller follow itself to the sag and provides effective means of mitigation .The voltage sag with the minimum harmonic at the efficacy end. The proposed technique is simulated using MATLAB/Simulink.

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“…At present, cascaded H-bridge multilevel (CHBML) inverters are widely used for motor drives, static synchronous compensator (STATCOM) and photovoltaic power conversion, because of their high-voltage output, improved electromagnetic compatibility, extreme modularity, and lesser number of components for synthesizing the same number of voltage levels [1][2][3][4][5][6][7][8]. The phase-shifted carrier pulse width modulation (PSCPWM) is a commonly used modulation technique for CHBML inverters because it is easy to use and convenient for controlling the output power of individual H-bridge cells [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Phase-Shifted Carrier Pulse Width Modulation Based on Particle Swarm Optimization for Cascaded H-bridge Multilevel Inverters with Unequal DC Voltages

Cai

Wu²,

et al. 2015

Energies

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High-voltage cascaded H-bridge multilevel (CHBML) inverters usually include many isolated dc voltage sources. Some dc source faults result in a drop in the dc voltage, thereby leading to unequal cell dc voltages. On the other hand, the differences in cell dc source parameters result in unequal dc voltages too. At present, riding through the faults of dc sources and operating under the condition of unequal dc voltages are required to improve the reliability of CHBML inverters. Unfortunately, the conventional phase-shifted carrier pulse width modulation (PSCPWM), which is widely used for CHBML inverters, cannot eliminate low-frequency sideband harmonics when cell dc voltages are not equal. This paper analyzes the principle of sideband harmonic elimination, and proposes an improved PSCPWM based on the particle swarm optimization algorithm. This modulation technique eliminates low-frequency sideband harmonics by calculating and regulating the carrier phases according to different cell dc voltages. The proposed PSCPWM enhances the reliability of the CHBML inverter and extends the range of its application. OPEN ACCESSEnergies 2015, 8 9671Simulation and experimental results obtained from the prototype of the CHBML inverter verify the theoretical analysis and the achievements made in this paper.

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Multigoal Heuristic Model Predictive Control Technique Applied to a Cascaded H-bridge StatCom

Cited by 99 publications

References 25 publications

Optimization of Switching Losses and Capacitor Voltage Ripple Using Model Predictive Control of a Cascaded H-Bridge Multilevel StatCom

Optimization of Switching Losses and Capacitor Voltage Ripple Using Model Predictive Control of a Cascaded H-Bridge Multilevel StatCom

Power Quality Improvement Using Multi-level Inverter based DVR and DSTATCOM Using Neuro-fuzzy Controller

Phase-Shifted Carrier Pulse Width Modulation Based on Particle Swarm Optimization for Cascaded H-bridge Multilevel Inverters with Unequal DC Voltages

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