mohammad ranjbari | Tafresh University (original) (raw)

Papers by mohammad ranjbari

Energy Conversion, IEEE Transactions on, Jan 1, 2006

Abstract—This paper presents a new direct power control (DPC) strategy for a doubly fed induction... more Abstract—This paper presents a new direct power control (DPC) strategy for a doubly fed induction generator (DFIG)-based wind energy generation system. The strategy is based on the direct con-trol of stator active and reactive power by selecting appropriate voltage vectors on ...

Power Systems, IEEE Transactions on, Jan 1, 1999

... Vol. 9, NO. 4, pp. 1263-1269, Aug. 1994. BIOGRAPHY John Lamont graduated from the University ... more ... Vol. 9, NO. 4, pp. 1263-1269, Aug. 1994. BIOGRAPHY John Lamont graduated from the University of Missouri-Rolla with a BSEE He attended the University of Missouri-Columbia where he received both the MSEE and Ph.D. degrees. ...

Industry Applications, IEEE Transactions on, Jan 1, 1995

Asymptotic torque-reactive power vector control algorithm based on full doubly-fed induction mach... more Asymptotic torque-reactive power vector control algorithm based on full doubly-fed induction machine model is designed and investigated. Full-scale experimental testing of the doubly-fed induction machine control algorithms with matrix converter at rotor side is performed. Doubly-fed induction machine control algorithm has been implemented in real time using DSP-controller and successfully tested on the experimental rig.

IEEE TRANS. INSTRUM. MEAS., Jan 1, 1987

… Journal of Electrical Power & Energy Systems, Jan 1, 1998

This paper presents an adaptive genetic algorithm (AGA) for optimal reactive power dispatch and v... more This paper presents an adaptive genetic algorithm (AGA) for optimal reactive power dispatch and voltage control of power systems. In the adaptive genetic algorithm, the probabilities of crossover and mutation, pc and pm, are varied depending on the fitness values of the ...

Power Systems, IEEE Transactions on, Jan 1, 1991

Power Systems, IEEE Transactions …, Jan 1, 2001

Capadk cost: attributed toreaaivt pnva produdion and absorption The component or eapndty cost tha... more Capadk cost: attributed toreaaivt pnva produdion and absorption The component or eapndty cost that can be Vmy 4iffiFuft to separate h from real power faparit> rmt Operatine cost: This p r i m v l l y involver t h e cost of energy losses in thewindhags due toreactive p w u production -Vicrj r,mU compared t o r c d p w u operatin~corr Opportunik cost: The potential revenue t h e supplier has to forgo in order toprovidereactive support ---This dependemir on tbe e a e r~t w ' s readive capabaility And UII in;uhrr ,ttudwr a i d condition Vrry tliffiallt in Qeterttiiiie aption'

Power Systems, IEEE Transactions …, Jan 1, 1997

... This is required in order to manage the reactive power requirements for the system and to pro... more ... This is required in order to manage the reactive power requirements for the system and to provide operational flexibility. ... and the third is based On customers. which the total costs Of the Plant are 'located to the three typical design power factor. When the reactive power ...

Power Apparatus and …, Jan 1, 1981

At the beginning of the test, breakdown failure occurred frequently in the cable or at the access... more At the beginning of the test, breakdown failure occurred frequently in the cable or at the accessory Therefore the following questions were arisen .Is XLPE available for de cable insulation?

Power Electronics, IEEE …, Jan 1, 1991

... fed wound rotor induction generator on the rotating frame fixed On a gap flux ('... more ... fed wound rotor induction generator on the rotating frame fixed On a gap flux ('-T frame) is carried out, and the control method is examined. The M-axis is fixed in the gap flux and the T-axis is fixed in the quad-rature with the M-axis. The relation of stator al-P1 axis, rotor (y2-~2 ...

Power Systems, IEEE Transactions on, Jan 1, 1994

... Pevwords : Genetic Algorithm, Optimal Power Flow, Global Minima, Reactive Power Allocation, I... more ... Pevwords : Genetic Algorithm, Optimal Power Flow, Global Minima, Reactive Power Allocation, Integer Problem, Expert system 1. Introductio n ... The construction. of such strict rules (meta-rules), however, require extensive help from skilled knowledge engineers. ...

Power Systems, IEEE …, Jan 1, 1991

Power Electronics, IEEE …, Jan 1, 1998

Abstract—This paper presents harmonic and reactive power compensation based on a generalized theo... more Abstract—This paper presents harmonic and reactive power compensation based on a generalized theory of instantaneous reactive power for three-phase power systems. This new theory gives a generalized definition of instantaneous reactive power, which is valid for sinusoidal or ...

Power Electronics, IEEE Transactions on, Jan 1, 1995

... While in variable speed, the system output voltage should be maintained at a constantfrequenc... more ... While in variable speed, the system output voltage should be maintained at a constantfrequency to interface with the power system. ... singly-excited adjustable speed drive by simple thyristor recti-fier using an innovative dc reactor circuit. ...

IPEC, Jan 1, 1983

With t h e r e c e n t development of semiconducting reactive power compensation equipment [ 1 , ... more With t h e r e c e n t development of semiconducting reactive power compensation equipment [ 1 , 21 , new terminologies such as "instantaneous r e a c t i v e power" tend t o be used more f r e q u e n t l y [ 3 , 41. To c l a r i f y t h e concept and t h e p h y s i c a l meaning of "instantaneous r e a c t i v e power" i s very important from p r a c t i c a l viewpoints. The conventional concept of " r e a c t i v e power" i s based on t h e t i m e average concept. I n t h i s paper, w e introduce a new concept c a l l e d ''instantaneous imaginary power" t o t h e three-phase c i r c u i t . This concept i s a b s o l u t e l y f r e e from t h e energy concept but i t can be measured i n p r a c t i c e and i t i s , i n some r e s p e c t , similar t o t h e i n s t a ntaneous real power which can a l s o be measured i n p r a c t i c e .

Instrumentation and Measurement, IEEE …, Jan 1, 1996

The systematic use of Active Power Filters, APFs, to compensate nonlinear loads, has extended the... more The systematic use of Active Power Filters, APFs, to compensate nonlinear loads, has extended the use of the instantaneous reactive power theory. Originally, the p-q theory appeared; it obtained constant instantaneous power in the source side after compensation. Later, other formulations have been developed. They have allowed different compensation objectives to be obtained. Nevertheless, all of them can only be applied to three-phase systems, i.e. those formulations frameworks can not be used to establish control strategies in poly-phase systems. This paper presents a new approach, based on geometric algebra, which can be applied to multiphase systems. A new tensor product is introduced that allows the operative definition of the instantaneous reactive power tensor and its derived instantaneous reactive current component. In addition, in this paper a new concept of instantaneous power multivector is introduced which allows the instantaneous reactive power theory to be encoded in an analog way as single-phase systems analysis. The new expressions are applied to a practical multi-phase system. Power and current terms are calculated and the associated waveforms are presented. Results corroborate the correspondence with the traditional electric power theory. GENERALIZED INSTANTANEOUS REACTIVE POWER THEORY IN POLY-PHASE POWER SYSTEMS HERRERA REYES EPE 2009 -Barcelona ISBN: 9789075815009 P.1

Energy Conversion, IEEE Transactions on, Jan 1, 2006

Abstract—This paper presents a new direct power control (DPC) strategy for a doubly fed induction... more Abstract—This paper presents a new direct power control (DPC) strategy for a doubly fed induction generator (DFIG)-based wind energy generation system. The strategy is based on the direct con-trol of stator active and reactive power by selecting appropriate voltage vectors on ...

Power Systems, IEEE Transactions on, Jan 1, 1999

... Vol. 9, NO. 4, pp. 1263-1269, Aug. 1994. BIOGRAPHY John Lamont graduated from the University ... more ... Vol. 9, NO. 4, pp. 1263-1269, Aug. 1994. BIOGRAPHY John Lamont graduated from the University of Missouri-Rolla with a BSEE He attended the University of Missouri-Columbia where he received both the MSEE and Ph.D. degrees. ...

Industry Applications, IEEE Transactions on, Jan 1, 1995

Asymptotic torque-reactive power vector control algorithm based on full doubly-fed induction mach... more Asymptotic torque-reactive power vector control algorithm based on full doubly-fed induction machine model is designed and investigated. Full-scale experimental testing of the doubly-fed induction machine control algorithms with matrix converter at rotor side is performed. Doubly-fed induction machine control algorithm has been implemented in real time using DSP-controller and successfully tested on the experimental rig.

IEEE TRANS. INSTRUM. MEAS., Jan 1, 1987

… Journal of Electrical Power & Energy Systems, Jan 1, 1998

This paper presents an adaptive genetic algorithm (AGA) for optimal reactive power dispatch and v... more This paper presents an adaptive genetic algorithm (AGA) for optimal reactive power dispatch and voltage control of power systems. In the adaptive genetic algorithm, the probabilities of crossover and mutation, pc and pm, are varied depending on the fitness values of the ...

Power Systems, IEEE Transactions on, Jan 1, 1991

Power Systems, IEEE Transactions …, Jan 1, 2001

Capadk cost: attributed toreaaivt pnva produdion and absorption The component or eapndty cost tha... more Capadk cost: attributed toreaaivt pnva produdion and absorption The component or eapndty cost that can be Vmy 4iffiFuft to separate h from real power faparit> rmt Operatine cost: This p r i m v l l y involver t h e cost of energy losses in thewindhags due toreactive p w u production -Vicrj r,mU compared t o r c d p w u operatin~corr Opportunik cost: The potential revenue t h e supplier has to forgo in order toprovidereactive support ---This dependemir on tbe e a e r~t w ' s readive capabaility And UII in;uhrr ,ttudwr a i d condition Vrry tliffiallt in Qeterttiiiie aption'

Power Systems, IEEE Transactions …, Jan 1, 1997

... This is required in order to manage the reactive power requirements for the system and to pro... more ... This is required in order to manage the reactive power requirements for the system and to provide operational flexibility. ... and the third is based On customers. which the total costs Of the Plant are 'located to the three typical design power factor. When the reactive power ...

Power Apparatus and …, Jan 1, 1981

At the beginning of the test, breakdown failure occurred frequently in the cable or at the access... more At the beginning of the test, breakdown failure occurred frequently in the cable or at the accessory Therefore the following questions were arisen .Is XLPE available for de cable insulation?

Power Electronics, IEEE …, Jan 1, 1991

... fed wound rotor induction generator on the rotating frame fixed On a gap flux ('... more ... fed wound rotor induction generator on the rotating frame fixed On a gap flux ('-T frame) is carried out, and the control method is examined. The M-axis is fixed in the gap flux and the T-axis is fixed in the quad-rature with the M-axis. The relation of stator al-P1 axis, rotor (y2-~2 ...

Power Systems, IEEE Transactions on, Jan 1, 1994

... Pevwords : Genetic Algorithm, Optimal Power Flow, Global Minima, Reactive Power Allocation, I... more ... Pevwords : Genetic Algorithm, Optimal Power Flow, Global Minima, Reactive Power Allocation, Integer Problem, Expert system 1. Introductio n ... The construction. of such strict rules (meta-rules), however, require extensive help from skilled knowledge engineers. ...

Power Systems, IEEE …, Jan 1, 1991

Power Electronics, IEEE …, Jan 1, 1998

Abstract—This paper presents harmonic and reactive power compensation based on a generalized theo... more Abstract—This paper presents harmonic and reactive power compensation based on a generalized theory of instantaneous reactive power for three-phase power systems. This new theory gives a generalized definition of instantaneous reactive power, which is valid for sinusoidal or ...

Power Electronics, IEEE Transactions on, Jan 1, 1995

... While in variable speed, the system output voltage should be maintained at a constantfrequenc... more ... While in variable speed, the system output voltage should be maintained at a constantfrequency to interface with the power system. ... singly-excited adjustable speed drive by simple thyristor recti-fier using an innovative dc reactor circuit. ...

IPEC, Jan 1, 1983

With t h e r e c e n t development of semiconducting reactive power compensation equipment [ 1 , ... more With t h e r e c e n t development of semiconducting reactive power compensation equipment [ 1 , 21 , new terminologies such as "instantaneous r e a c t i v e power" tend t o be used more f r e q u e n t l y [ 3 , 41. To c l a r i f y t h e concept and t h e p h y s i c a l meaning of "instantaneous r e a c t i v e power" i s very important from p r a c t i c a l viewpoints. The conventional concept of " r e a c t i v e power" i s based on t h e t i m e average concept. I n t h i s paper, w e introduce a new concept c a l l e d ''instantaneous imaginary power" t o t h e three-phase c i r c u i t . This concept i s a b s o l u t e l y f r e e from t h e energy concept but i t can be measured i n p r a c t i c e and i t i s , i n some r e s p e c t , similar t o t h e i n s t a ntaneous real power which can a l s o be measured i n p r a c t i c e .

Instrumentation and Measurement, IEEE …, Jan 1, 1996

The systematic use of Active Power Filters, APFs, to compensate nonlinear loads, has extended the... more The systematic use of Active Power Filters, APFs, to compensate nonlinear loads, has extended the use of the instantaneous reactive power theory. Originally, the p-q theory appeared; it obtained constant instantaneous power in the source side after compensation. Later, other formulations have been developed. They have allowed different compensation objectives to be obtained. Nevertheless, all of them can only be applied to three-phase systems, i.e. those formulations frameworks can not be used to establish control strategies in poly-phase systems. This paper presents a new approach, based on geometric algebra, which can be applied to multiphase systems. A new tensor product is introduced that allows the operative definition of the instantaneous reactive power tensor and its derived instantaneous reactive current component. In addition, in this paper a new concept of instantaneous power multivector is introduced which allows the instantaneous reactive power theory to be encoded in an analog way as single-phase systems analysis. The new expressions are applied to a practical multi-phase system. Power and current terms are calculated and the associated waveforms are presented. Results corroborate the correspondence with the traditional electric power theory. GENERALIZED INSTANTANEOUS REACTIVE POWER THEORY IN POLY-PHASE POWER SYSTEMS HERRERA REYES EPE 2009 -Barcelona ISBN: 9789075815009 P.1