Abstract:
Power management device includes memory, classification portion, planning portion and indication portion. Classification portion classifies a change in monitoring power during a unit period with respect to each of buildings, stored in memory, into any one of kinds of electric power patterns. Planning portion determines pattern sets based on the kinds of electric power patterns, and determines control content for charging and discharging of electric storage apparatus with respect to each pattern set under condition of minimizing any one of amount of electric power to be received from power grid, compensation of amount of electric power to be received from power grid, and amount of carbon dioxide to be exhausted. Indication portion indicates control content corresponding to each of pattern sets determined by planning portion to electric storage apparatus of a building, which each pattern set conforms with, of the buildings.
Abstract:
A frequency response optimization system includes a battery configured to store and discharge electric power, a power inverter configured to control an amount of the electric power stored or discharged from the battery at each of a plurality of time steps during a frequency response period, and a frequency response controller. The frequency response controller is configured to receive a regulation signal from an incentive provider, determine statistics of the regulation signal, use the statistics of the regulation signal to generate an optimal frequency response midpoint that achieves a desired change in a state-of-charge (SOC) of the battery while participating in a frequency response program, and use the midpoints to determine optimal battery power setpoints for the power inverter. The power inverter is configured to use the optimal battery power setpoints to control the amount of the electric power stored or discharged from the battery.
Abstract:
A power storage system includes a power generation element that performs environmental power generation, a first storage battery that receives power generated by the power generation element and supplies the power to a load device, a second storage battery that has a capacitance smaller than that of the first storage battery and is connected in series with the first storage battery, a first switcher that is connected in parallel to the second storage battery, short-circuits both terminals of the second storage battery in a closed state, and releases a short-circuited state of the second storage battery in an open state, and a switching unit that controls the opened and closed states of the first switcher.
Abstract:
A method and system for extending autonomous operation of a self-contained climate controlled storage unit is provided. The embodiments of the method and system described herein can extend the run time of a battery source of a self-contained climate controlled storage unit prior to, during, or after transport. In some embodiments, a mobile charging system is provided to extend the run time of the battery source of the self-contained climate controlled storage unit.
Abstract:
In an energy storage system, power from at least one of a solar cell, a commercial AC power source, and a storage battery is supplied to load devices. In the daytime, under the condition that an amount of power generated by the solar cell is less than an amount of power consumed by the load device, the discharge from the storage battery to the load device is permitted or prohibited if the charge level of the storage battery is higher or is not higher than the reference charge level. The discharge from the storage battery which makes the charge level of the storage battery lower than the reference level is permitted at night.
Abstract:
The load power monitoring system according to an embodiment of the present disclosure includes a distribution board to distribute a electric power applied from a external electric power supply source (110) or a first renewable energy source (140) to an electric device, at least one power metering device to sense electric energy of at least one of the electric power supply source (110) and the first renewable energy source (140), a second power metering device to sense electric energy distributed to the electric device (130), a third power metering device to sense electric energy generated from a second renewable energy source (150), and a monitoring server (10) to collect electric energy data sensed at each of the power metering devices and monitor the load power based on the collected electric energy data
Abstract:
An energy management system (120) includes an equipment data management unit (134) which manages charging/discharging loss of a battery (112) and heat radiation loss of an electric water heater (113). The equipment data management unit (134) causes a control unit (121) to perform control to give priority based on the comparison to the energy storage facility more reducing loss and store energy therein. The energy management system (120) includes a system operation calculation unit (51) which predicts a voltage distribution of the next day of a distribution system or a demand-and-supply balance amount of the entire system by state monitoring data of a power system. The system operation calculation unit (51) calculates a demand amount increasing target value necessary for avoiding a photovoltaic power generation amount suppression on a consumer end by the voltage distribution of the next day of the distribution system or the demand-and-supply balance amount, and controls the energy storage facilities so as to satisfy the demand amount increasing target value on the consumer end. Further, the energy storage facilities of other consumers can consume the photovoltaic power generation amount unable to be consumed by one consumer due to capacity shortage of the energy storage facilities.
Abstract:
A touch panel and a touch display device are disclosed. The touch panel includes a base substrate and a touch electrode layer (30) and a transparent thin film photovoltaic cell (50) disposed on the base substrate (10). The touch electrode layer (30) and the transparent thin film photovoltaic cell (50) are superimposed to each other and disposed on the same side of the base substrate (10), and a transparent insulating layer (40) is disposed between the touch electrode layer (30) and the transparent thin film photovoltaic cell (50); or the touch electrode layer (30) and the transparent thin film photovoltaic cell (50) are respectively disposed on either side of the base substrate (10); and the transparent thin film photovoltaic cell includes an n-doped graphene layer (51) and a p-doped graphene layer (52). The transparent thin film photovoltaic cell disposed in the touch panel can charge an electronic product so that the service time of the touch panel can be prolonged.
Abstract:
The portable wind and solar power generator is a portable system for charging rechargeable batteries and providing power for external devices from wind and solar energy. The portable wind and solar power generator includes a housing for receiving at least one turbine and at least one electrical generator. At least one solar panel is mounted on the housing. The housing is rotatably mounted on an upper surface of a hollow base which houses at least one rechargeable battery. The at least one rechargeable battery is in electrical communication with the at least one electrical generator and the at least one solar panel for charging thereof. A wind vane mounted on a rear end of the housing causes ambient wind to rotate the housing, with respect to the hollow base, such that the ambient wind impinges upon the at least one turbine to drive the at least one electrical generator.