Abstract: A direct current bus control system including a direct current bus connecting between an input power supply and a load, including a main stabilizing device including a first charge-&-discharge element and a first power converter, and at least one sub-stabilizing device including a second charge-&-discharge element, a charge element, or a discharge element, and including a second power converter, wherein the first power converter is configured to derive a bus voltage target value according to a power storage amount index of the first charge-&-discharge element, and to bidirectionally pass direct current power, so that the voltage of the direct current bus matches the bus voltage target value, and the second power converter is configured to derive a current target value, and to pass direct current power, so that a current equal to the current target value flows.

Abstract: An electrolytic system includes, a power generator that outputs a first DC power, a plurality of converters each of which converts the first DC power into a second DC power according to a target duty ratio, and outputs voltage information and current information of the second DC power, a plurality of electrolyzers each of which receives the second DC power output from each of the plurality of converters and generates a gas, a control circuit that outputs control information by which the first DC power approaches a maximum power, based on a voltage value and a current value of the first DC power, and a selection circuit that outputs the target duty ratio, and a selection signal as to whether to select each of the plurality of electrolyzers and each of the plurality of converters, based on the control information and the voltage information and the current information.

Abstract: A direct current bus control system including a direct current bus connecting between an input power supply and a load, including a main stabilizing device including a first charge-&-discharge element and a first power converter, and at least one sub-stabilizing device including a second charge-&-discharge element, a charge element, or a discharge element, and including a second power converter, wherein the first power converter is configured to derive a bus voltage target value according to a power storage amount index of the first charge-&-discharge element, and to bidirectionally pass direct current power, so that the voltage of the direct current bus matches the bus voltage target value, and the second power converter is configured to derive a current target value, and to pass direct current power, so that a current equal to the current target value flows.

Abstract: An electrolytic system includes, a power generator that outputs a first DC power, a plurality of converters each of which converts the first DC power into a second DC power according to a target duty ratio, and outputs voltage information and current information of the second DC power, a plurality of electrolyzers each of which receives the second DC power output from each of the plurality of converters and generates a gas, a control circuit that outputs control information by which the first DC power approaches a maximum power, based on a voltage value and a current value of the first DC power, and a selection circuit that outputs the target duty ratio, and a selection signal as to whether to select each of the plurality of electrolyzers and each of the plurality of converters, based on the control information and the voltage information and the current information.