Power controller, power generation system, and control method of power controller

A power controller comprising:

• power storage means of storing DC power outputted from DC power generation means that generates DC power;
• power conversion means including at least a DC/DC converter that converts a voltage when receiving a DC input;
• charge and discharge means of discharging electric power from the power storage means to the power conversion means and of charging DC power from the DC power generation means in the power storage means, the charge and discharge means being provided among the DC power generation means, the power storage means and the power conversion means;
• detection means of detecting electric energy of an external power load to which power from at least the power conversion means is supplied;
• and
• control means of controlling operation of the charge and discharge means on the basis of the detected electric energy,
• wherein the charge and discharge means has a DC/DC conversion function, converts an output voltage of the DC power generation means into a charge voltage of the power storage means, and converts a discharge voltage of the power storage means into an output voltage of the DC power generation means.