Title: based on five zone paper graph voltage reactive-power integrated control ABSTRACT Voltage electricity quality is an important index, in relation to the safe and stable operation of the grid. Voltage and reactive power relation, reactive power is an important factor of affect the quality of voltage and reactive power grid power loss is produced, therefore, is the important reason of reactive power balance layer, division, is to reduce the loss of grid spot, keeping voltage qualified. Voltage reactive-power integrated control is the use of transformer on-load regulating transformator and parallel compensation capacitor, local voltage and reactive power compensation, to ensure that the automatic adjust load side in the specified scope of busbar voltage fluctuation range (allow) and power factor of busbar side as close as possible. In this paper, the control model, the start area, border control aspects of "five blind area chart" are discussed and improved. From the Angle of geometric vector model according to the operation, control the border, will determine the "five zone", control principle and traditional "9" zone of control theory, the control strategy of the control effect is improved.
Keywords: voltage reactive-power integrated control, Nine area; Five area; Action vector; distance
