Renewable energy power generation and storage control device for reverse flow prevention type self-consumption

A renewable energy power generation and storage control device for reverse flow prevention type self-consumption, comprising:

• one or more power generation devices which generate electric power from renewable energy;
• an electric power converter for power generation which is connected to each of the power generation devices and is constructed to condition an output amount of the electric power generated by the power generation device;
• a power generation amount detecting unit which detects an amount of power output from the electric power converter for power generation as a detected power output and outputs the amount of power from the electric power converter for power generation as a power generation signal;
• a flow detecting unit which detects an amount of power supplied from a commercial power system as a detected supplied power and outputs the amount of power supplied from the commercial power system as a flow signal;
• a flow control unit which outputs a flow operation amount according to a result of a comparison of a preset target value with the flow signal;
• a power generation control unit which controls the amount of power output from the electric power converter for power generation based on the flow operation amount that is inputted from the flow control unit;
• an instantaneous power detecting unit which detects instantaneous power supplied to loads that are supplied with electric power from the commercial power system through a power receiving point as a detected supplied instantaneous power and outputs the detected supplied instantaneous power as an instantaneous power signal;
• a demand control unit which outputs a demand operation amount to make power consumption of all loads approximate to a demand target value only for a load capable of automatic control of the electric power out of all loads;
• and
• a setting value calculating unit which obtains the demand target value,
• wherein the power generation control unit sets a power generation target value based on the flow operation amount, obtains an amount of generated power to be output from the electric power converter for power generation based on the result of a comparison of the power generation target value with the power generation amount signal, and outputs the amount of generated power as a power generation operation amount,
• wherein the demand control unit outputs the demand operation amount to the load capable of automatic control of the electric power out of all of the loads according to a result of a comparison of the demand target value obtained by the setting value calculating unit, and
• wherein the setting value calculating unit is configured to determine whether to change a setting value according to the amount of power output from the electric power converter for power generation.