Showing papers on "Maximum power point tracking published in 1969"
Patent•
11 Mar 1969
TL;DR: In this article, the instantaneous power from a power source and operatively selectively disconnecting the power source from a load and a battery recharging circuit upon generation of a pulse from either a power peak detector or a peak absence detector, power to the load being supplied by the battery when the source is disconnected, battery overcharged protection controls further operating to override reset of the power switch.
Abstract: Apparatus for detecting the instantaneous power from a power source and operatively selectively disconnecting the power source from a load and a battery recharging circuit upon generation of a pulse from a power peak detector or a peak absence detector, power to the load being supplied by the battery when the power source is disconnected, battery overcharged protection controls further operating to override reset of the power switch, the power source being forced to supply a range of output voltage corresponding to that providing maximum power output of the source.
86 citations
TL;DR: In this paper, the authors present techniques and methods for conducting simplified power-flow calculations in power pools by employing the simultaneous computing capability of the computers in the separate areas of the pool.
Abstract: Techniques and methods are presented for conducting simplified power-flow calculations in power pools by employing the simultaneous computing capability of the computers in the separate areas of the pool.
17 citations
TL;DR: In this article, Park vectors are used to find the current distribution of a three-phase inverter, and an analysis is given of all the possible conditions of an inverter connected to an active load that can produce any load power factor from zero leading to zero lagging.
Abstract: Three-phase inverters have different modes of operation, while the load power factor angle varies over a 3600 range. A method of analysis is described which makes it possible to find these modes of operation. The method is based on the use of Park vectors. These vectors-generally used in the analysis of three-phase ac machines-are composed of the instantaneous values of a three-phase system. Voltage and current vectors of a three-phase inverter are used to find the current distribution of the inverter. An analysis is given of all the possible conditions of an inverter connected to an active load that can produce any load power factor from zero leading to zero lagging. Some special modes of operation are discussed in detail. Ranges of load power factor angles having different types of commutations are obtained. A control method is shown which makes it possible to obtain effective voltage regulation at the full range of load power factor at a reduced commutation frequency.
10 citations
TL;DR: In this article, the authors point out any side benefits which are available with special reference to inverters operating in parallel and clarify system application and point out the advantages of using parallel inverters.
Abstract: High power inverter systems are used in a variety of applications and for a variety of reasons. Consideration of some of the basic characteristics and methods of application is required to ensure a satisfactory system, both from the operational and economical points of view. This paper attempts to clarify system application and point out any side benefits which are available with special reference to inverters operating in parallel.
1 citations