Voltage control device for solar power generation in accordance with output limit

A voltage control device for solar power generation in an output limit situation, comprising:

• a pattern calculation unit configured to perform an algorithm to calculate output points adjacent to a limited output (PR) from a current output point of the solar power generation facility, and to calculate an output pattern comprised of the output points;
• a voltage adjustment unit configured to control a terminal voltage of a solar panel with the voltage of a final output point of the output pattern;
• and
• a pattern comparison unit configured to compare output patterns to present a past output pattern that is most similar to a current output pattern,
• wherein a limited voltage corresponding to the limited output (PR) is either immediately provided based on a previously calculated the output pattern, or is obtained by adding output points by the pattern calculation unit based on a previously calculated the output pattern, and
• the output pattern is a topological pattern including a graph comprised of nodes, which are output points, and edges connecting the nodes, or a polygon comprised of vertices, which are output points, and sides connecting the vertices.