EPE Association: EPE 2005 - Topic 15-2: Power conditioning, power factor correction, line side converters

EPE 2005 - Topic 15-2: Power conditioning, power factor correction, line side converters
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2005 - Conference > EPE 2005 - Topic 15: POWER ELECTRONICS IN TRANSMISSION AND DISTRIBUTION OF ELECTRICAL ENERGY > EPE 2005 - Topic 15-2: Power conditioning, power factor correction, line side converters

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   Feedback loop control strategies with a resonant controllerfor ac voltage control of a grid-connected Decentralized Generator
By FRANCOIS Bruno; SAUDEMONT Christophe [View]
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Abstract: The supply of ancillary services is now a new challenge to boost the development of Distributed Generators (DG). This paper investigates the suitability of various strategies for the AC voltage control of a grid-connected DG via a three-phase voltage-source inverter with a second-order filter.

   Modelling and Design of Shunt Active Power Filters using Genetic Algorithms
By MARINELLI Maria; ZANCHETTA Pericle; CUPERTINO Francesco; SUMNER Mark [View]
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Abstract: One of the main issues when designing a control strategy for a power electronic system is the development of a reliable model of the real system. It ensures that a simulation presents the same behavior as the real system, providing a useful instrument for control design. Consequently, the designer would avoid wasting time manually adjusting parameters of controllers which have achieved good performance in simulation but poor performance in the real system. However, the evaluation of the actual plant parameters is always a hard job for the designer due to the mismatch between rated and actual values and the presence of unmodelled dynamics. This paper presents a technique for the optimization of the parameters of the simulation model of a shunt active power filter system using Genetic Algorithms (GAs). The optimization process is based on experimental data measured during the normal operation of the real system. After this, the identified model has been used to optimize in simulation the controllers of the shunt active power filter. Experimental results prove that the optimized controllers greatly improve the system performance.

   Stability Analysis of a Compensated Load on a Grid to Obtain Unity Power Factor
By BRAUN Michael; FORATI KASHANI Omid [View]
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Abstract: In this paper, the shunt compensation of reactive power is investigated. The compensation is based on the FBD-Method. In this method the current of the shunt compensator will cause a situation that the load plus compensator ideally appear as a pure resistive load on the grid. There are some stability problems in the grid, if the compensator compensates a generating load. The presented analytical analysis of stability has shown under which circumstances the grid with the compensated generating load will be stable. The presented simulation and experimental results confirm the analytical investigations.

   Using a Simple Analogical Identification Method and PID Controllers for Unified Power Quality Conditioning
By ABDELLI Youcef; SHAFIEE KHOOR Mohsen; MACHMOUM Mohamed [View]
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Abstract: A Unified Power Quality Conditioner (UPQC) consisting of a series and parallel active power filtering that uses simple analogical identification methods and control strategies will be discussed in this paper. The current and voltage regulators are based on PID controllers. Different parts of the system are discussed in detail and simulation results are shown in transient and steady-state conditions to verify the good responses and viability of the proposed UPQC.

EPE 2005 - Topic 15-2: Power conditioning, power factor correction, line side converters
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2005 - Conference > EPE 2005 - Topic 15: POWER ELECTRONICS IN TRANSMISSION AND DISTRIBUTION OF ELECTRICAL ENERGY > EPE 2005 - Topic 15-2: Power conditioning, power factor correction, line side converters
	[return to parent folder]

	Feedback loop control strategies with a resonant controllerfor ac voltage control of a grid-connected Decentralized Generator By FRANCOIS Bruno; SAUDEMONT Christophe	[View] [Download]
Abstract: The supply of ancillary services is now a new challenge to boost the development of Distributed Generators (DG). This paper investigates the suitability of various strategies for the AC voltage control of a grid-connected DG via a three-phase voltage-source inverter with a second-order filter.

	Modelling and Design of Shunt Active Power Filters using Genetic Algorithms By MARINELLI Maria; ZANCHETTA Pericle; CUPERTINO Francesco; SUMNER Mark	[View] [Download]
Abstract: One of the main issues when designing a control strategy for a power electronic system is the development of a reliable model of the real system. It ensures that a simulation presents the same behavior as the real system, providing a useful instrument for control design. Consequently, the designer would avoid wasting time manually adjusting parameters of controllers which have achieved good performance in simulation but poor performance in the real system. However, the evaluation of the actual plant parameters is always a hard job for the designer due to the mismatch between rated and actual values and the presence of unmodelled dynamics. This paper presents a technique for the optimization of the parameters of the simulation model of a shunt active power filter system using Genetic Algorithms (GAs). The optimization process is based on experimental data measured during the normal operation of the real system. After this, the identified model has been used to optimize in simulation the controllers of the shunt active power filter. Experimental results prove that the optimized controllers greatly improve the system performance.

	Stability Analysis of a Compensated Load on a Grid to Obtain Unity Power Factor By BRAUN Michael; FORATI KASHANI Omid	[View] [Download]
Abstract: In this paper, the shunt compensation of reactive power is investigated. The compensation is based on the FBD-Method. In this method the current of the shunt compensator will cause a situation that the load plus compensator ideally appear as a pure resistive load on the grid. There are some stability problems in the grid, if the compensator compensates a generating load. The presented analytical analysis of stability has shown under which circumstances the grid with the compensated generating load will be stable. The presented simulation and experimental results confirm the analytical investigations.

	Using a Simple Analogical Identification Method and PID Controllers for Unified Power Quality Conditioning By ABDELLI Youcef; SHAFIEE KHOOR Mohsen; MACHMOUM Mohamed	[View] [Download]
Abstract: A Unified Power Quality Conditioner (UPQC) consisting of a series and parallel active power filtering that uses simple analogical identification methods and control strategies will be discussed in this paper. The current and voltage regulators are based on PID controllers. Different parts of the system are discussed in detail and simulation results are shown in transient and steady-state conditions to verify the good responses and viability of the proposed UPQC.