Ihi Corporation

Ihi Terrasun Solutions Inc.

Yuji Koguma

Akinobu Inamura

Kenichi Hamaguchi

Tristan Doherty

Marco Ferrara

Sergey Crane

Sho Kazikura

Daiki Kojima

An EMS includes a target presentation unit indicating target power, a power acquisition unit that obtains combined power obtained by adding power output from the photovoltaic power generation system, power consumed by the power consumer, power output from the power generation system, power consumed by the hydrogen production system, and power output or consumed by the storage battery system, and a command value generation unit that generates a command value such that the combined power asymptotically approaches the target power. The combined power includes a long- and intermediate-period component and a short-period component. The command value generation unit outputs a command value corresponding to the long- and intermediate-period component to the power generation system or the hydrogen production system. The command value generation unit outputs a command value corresponding to the short-period component to the storage battery system.

Power system adjusting device and power system adjusting program

There is provided a power adjustment method in a microgrid connected to an external power supply system and having a power storage unit capable of adjusting an amount of stored power by charging and discharging and a power consumption unit capable of adjusting power consumption of the power. The power adjustment method includes adjusting transmission and reception of the power by simultaneously controlling the power consumption in the power consumption unit and charge/discharge power in the power storage unit in order to transmit and receive power based on a planned value determined for each planned section to and from the external power supply system.

Power regulation method and power regulation device

A demand and supply planning method generates a supply-demand plan including information that specifies operation of an energy generation unit for each unit time in a microgrid having energy generation units being connected to an external energy supply system and generating energy while consuming fuel, an energy storage unit, and a load unit; by calculating an optimization problem related to an objective function including terms related to energy transfer from the external energy supply system in the microgrid and terms related to fuel consumption in the microgrid by using a constraint condition related to a relationship between information related to an operating duration time in each of the one or more energy generation units at a start time for generating the supply-demand plan and a minimum operation time constraint of the energy generation unit; and outputting the supply-demand plan based on a calculation result of the optimization problem.

Demand and supply planning method and demand and supply planning apparatus

A power adjustment method includes a step of calculating an integration error which is an error between a control target value of an integrated amount of grid power transmitted and received between an electric power system and a microgrid and an actual value of the integrated amount of the grid power, a step of generating a first command value for causing a power consuming device to consume power consumption on the basis of a low-frequency component of the integration error, a step of generating a second command value for causing a power storage device to charge and discharge charging/discharging power on the basis of a high-frequency component of the integration error, and a step of outputting the first command value to the power consuming device and outputting the second command value to the power storage device.

Power adjustment method and power adjustment device

Systems and method for optimal control of one or more energy storage systems are provided. Based on live, historical, and/or forecast data received from one or more data sources, one or more forecasts of one or more parameters relating to the operation of the one or more energy storage systems and an associated forecast uncertainty may be calculated by various forecasting techniques. Using one or more optimization techniques, an optimal dispatch schedule for the operation of the one or more energy storage systems may be created based on the forecasts. The optimal dispatch schedule may be used to determine one or more energy storage system parameters, which are used to control the operation of the energy storage systems.

System and method for optimal control of energy storage system

The energy management system is an energy management system for a microgrid including at least either one of an electrical load and a renewable energy power-generation system, and an energy storage device, the energy management system including: a prediction unit that predicts, at a fixed time interval, at least either one of an electricity demand and an amount of electricity generated from renewable energy, and an electricity fee, within a predetermined period; and an optimization unit that performs optimization for an optimum charging/discharging plan for the energy storage device by using a prediction result from the prediction unit and in consideration of uncertainty in prediction.

Microgrid power plan for optimizing energy performance resulting from proportional predictive demand

Systems and methods for optimal control of one or more energy storage systems are provided. Based on live, historical, and/or forecast data received from one or more data sources, one or more forecasts of one or more parameters relating to the operation of the one or more energy storage systems and an associated forecast uncertainty may be calculated by various forecasting techniques. Using one or more optimization techniques, an optimal dispatch schedule for the operation of the one or more energy storage systems may be created based on the forecasts. The optimal dispatch schedule may be used to determine one or more energy storage system parameters, which are used to control the operation of the energy storage systems.

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Yokohama, Japan

Yuji Koguma