Yakichi Tanaka

Learn More
This paper proposes a new neutral point potential control technique for the three-level neutral-point-clamped PWM inverter. Utilizing the phase current polarity information, this technique distributes the redundant voltage vectors in a manner to obtain stable neutral point voltage under all operating conditions including the zero power factor condition.(More)
  • Y Tanaka
  • 1996
Animal communication systems (sexual and social communications) may cause an extra selection load on populations because of the cost of the signals. Under environmental deterioration, the cost of signaling must increase, resulting in an evolutionary reduction in the signal if it is maintained by natural selection vs. sexual selection balance. And in turn,(More)
  • 1