| 摘要 |
PROBLEM TO BE SOLVED: To operate the system at high efficiency and optimize the system voltage and prevent troubles due to higher harmonic waves by leveling loads. SOLUTION: A control system of a power transmission and distribution system has a plurality of power receiving devices 89, each of which has a controller 91. The power receiving devices 89 have such a function as to generate active and reactive power of a fundamental wave and higher harmonic waves and to supply these powers to a distribution line and receive power from the distribution line. Furthermore, a first central controller for controlling the distribution line is installed in this system. The first central controller stores the information on the structure of the distribution line and collects the information on the on/off state at the present of a switch connected to the distribution line. For the amount of current and electricity on the distribution line, the first central controller sends unique and individual control command signals which it caused the power receiving devices 89 to generate based on the information stored and collected by itself, to the controllers 91 and thereby it makes an optimum cooperative control of the power transfer devices 89. |
