A study on the theory of instantaneous reactive power

Furuhashi, Takeshi; Okuma, Shigeru; Uchikawa, Yoshiki

doi:10.1109/41.45848

Cited by 187 publications

(52 citation statements)

References 5 publications

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“…6. These results are consistent with (12) and (14). Figure 7 shows the overall A phase input current and the currents of the power cell A1, B1, and C1 when the motor is running in 35 Hz.…”

Section: Simulation Resultssupporting

confidence: 77%

“…However, the equivalent leakage inductance parameters of power cells are not exactly equal. Consequently, in order to eliminate the fluctuating components of the input instantaneous active power,active and non-active current calculation based on instantaneous abc theory are used [14]. Thus, the abc phase input current references by means of a minimization method can be calculated as …”

Section: Proposed Input Active Power Control Schemementioning

confidence: 99%

“…In the previous literatures, the current reference calculations are based on the instantaneous pq theory. In order to avoid complex calculations of extracting positive and negative sequence dq current reference, based on instantaneous abc theory [14], direct active power control (DAPC) scheme in the stationary abc frame is developed.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Direct Active Power Control for Regenerative Cascade Inverter with Reduced AC Power in DC Link

2014

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Original scientific paperThis paper presents a regenerative cascade inverter topology with direct active power control scheme. From the mathematical model of the proposed regenerative cascade inverter, the instantaneous active power and reactive power are derived. Based on the instantaneous abc theory, direct active power feed-forward control is proposed to reduce AC power and voltage fluctuation in DC link. Moreover, a load current full order observer is established to avoid the inconvenient of the current sensor installation. The proposed control scheme is analyzed theoretically by simulation, and verified experimentally. Key words:Regenerative cascade inverter, Direct active power control, Feed-forward control, Observer Upravljanje aktivnom snagom regenerativnog kaskadnog invertera uz smanjenje izmjenične komponente snage u istosmjernom meîukrugu. U ovome radu predstavljena je topologija regenerativnog kaskadnog invertera sa shemom direktnog upravljanja aktivnom snagom. Trenutna aktivna i reaktivna snaga dobiveni su iz matematičkog modela predloženog regenerativnog kaskadnog invertera. Na temelju abc teorije, predloženo je unaprijedno upravljanje aktivnom snagom kako bi se smanjila izmjenična komponenta snage i promjena napona u istosmjernom meîukrugu. Ugradnja senzora za mjerenje struje izbjegla se razvijanjem observera punog reda. Predložena shema upravljanja testirana je simulacijski i eksperimentalno.Ključne riječi: regenerativni kaskadni inverer, upravljanje aktivnom snagom, unaprijedno upravljanje, observer

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“…6. These results are consistent with (12) and (14). Figure 7 shows the overall A phase input current and the currents of the power cell A1, B1, and C1 when the motor is running in 35 Hz.…”

Section: Simulation Resultssupporting

confidence: 77%

Section: Proposed Input Active Power Control Schemementioning

confidence: 99%

See 1 more Smart Citation

Direct Active Power Control for Regenerative Cascade Inverter with Reduced AC Power in DC Link

2014

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“…Different approaches such as notch filter, (Newman et al, 2002), scalar control, (Chandra et al, 2000), instantaneous reactive power theory, (Furuhashi et al, 1990, Akagi et al, 2007, synchronous detection method, (Chen et al, 1993), synchronous d-q frame method, (Mendalek et al, 2003), flux-based control, (Bhattacharya et al, 1996), and closed loop PI, (Bhattacharya et al, 1996), internal model control, (Marconi et al, 2007), and sliding mode control, (Saetieo et al, 1995), can be used to improve the active filter performance. Also, the direct power control method has found application in active filters, (Chen & Joós, 2008).…”

Section: Control Methods and Strategiesmentioning

confidence: 99%

Active Power Filters for Harmonic Elimination and Power Quality Improvement

Martins¹,

Ferreira²,

Azevedo³

2011

Power Quality

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“…On the basis of instantaneous reactive power theory [17], [18], the instantaneous active power p and reactive power q are defined in (1) using the power invariance of the Park transformation and arbitrary reference coordinates. …”

Section: A Principle Of Control-winding-voltage-orientation Control mentioning

confidence: 99%

Grid-Connected Dual Stator-Winding Induction Generator Wind Power System for Wide Wind Speed Ranges

Shi¹,

Xu²,

Wan³

et al. 2016

Journal of Power Electronics

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This paper presents a grid-connected dual stator-winding induction generator (DWIG) wind power system suitable for wide wind speed ranges. The parallel connection via a unidirectional diode between dc buses of both stator-winding sides is employed in this DWIG system, which can output a high dc voltage over wide wind speed ranges. Grid-connected inverters (GCIs) do not require booster converters; hence, the efficiency of wind energy utilization increases, and the hardware topology and control strategy of GCIs are simplified. In view of the particularities of the parallel topology and the adopted generator control strategy, we propose a novel excitation-capacitor optimization solution to reduce the volume and weight of the static excitation controller. When this excitation-capacitor optimization is carried out, the maximum power tracking problem is also considered. All the problems are resolved with the combined control of the DWIG and GCI. Experimental results on the platform of a 37 kW/600 V prototype show that the proposed DWIG wind power system can output a constant dc voltage over wide rotor speed ranges for grid-connected operations and that the proposed excitation optimization scheme is effective.

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A study on the theory of instantaneous reactive power

Cited by 187 publications

References 5 publications

Direct Active Power Control for Regenerative Cascade Inverter with Reduced AC Power in DC Link

Direct Active Power Control for Regenerative Cascade Inverter with Reduced AC Power in DC Link

Active Power Filters for Harmonic Elimination and Power Quality Improvement

Grid-Connected Dual Stator-Winding Induction Generator Wind Power System for Wide Wind Speed Ranges

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