New concepts of instantaneous active and reactive powers in electrical systems with generic loads
- COPPE/Federal Univ. of Rio de Janeiro (Brazil)
This paper presents first a review of the conventional active and reactive power theory, valid for the steady-state analysis and then the instantaneous power theory, introduced by Akagi et al is presented. This instantaneous theory is, valid for steady-and-transient states and for generic voltage and current waveforms. Some examples explaining the physical meaning of the new concepts will be presented. Also, by using the well known concepts of symmetrical components together with the new theory the powers in an unbalanced system will be analyzed, including the zero-sequence instantaneous power. An example will be presented showing how this theory can be used to design and control an active power filter. Some simulation results are presented and discussed.
- OSTI ID:
- 6165494
- Journal Information:
- IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Vol. 8:2; ISSN 0885-8977
- Country of Publication:
- United States
- Language:
- English
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AC SYSTEMS
ELECTRIC FILTERS
DESIGN
ELECTRIC CURRENTS
ELECTRIC POTENTIAL
ELECTRIC POWER
POWER POTENTIAL
POWER TRANSMISSION
SIMULATION
STEADY-STATE CONDITIONS
TRANSIENTS
CURRENTS
ENERGY SYSTEMS
FILTERS
POWER
POWER SYSTEMS
240201* - Power System Networks
Transmission & Distribution- AC Systems- (1990-)