Abstract:
A central plant includes an electrical energy storage subplant configured to store electrical energy, a plurality of generator subplants configured to consume one or more input resources, including discharged electrical energy, and a controller. The controller is configured to determine, for each time step within a time horizon, an optimal allocation of the input resources. The controller is configured to determine optimal allocation of the output resources for each of the subplants in order to optimize a total monetary value of operating the central plant over the time horizon.
Abstract:
The present invention discloses a control system for monitoring and control of a micro- grid (100). The control system comprises a first controller for controlling of at least one of a power generation source and an electrical load, and a second controller (245) for controlling a rotating electrical machine (246). The rotating electrical machine (246) is electrically connectable to an electrical bus (205) of the micro-grid (100) for one of receiving electrical power and supplying electrical power. The second controller (245) is configured to coordinate with the first controller for operating the rotating electrical machine (246) by engaging the clutch (244) to couple the rotating electrical machine (246) to the prime mover (242), for supplying power.
Abstract:
Die Erfindung betrifft ein Verfahren zur Steuerung des Energieverbrauchs einer Gebäudeeinheit (1) mit sämtlichen, der Gebäudeeinheit zugeordneten Strom- (2, 3, 4) und Wärmeverbrauchern (5, 6) als Energieverbraucher, in welchem mindestens eine zentrale Steuerungseinheit (16) über mindestens ein Kommunikationsnetzwerk Informationen über einzelne Energieverbraucher, einzelne Energieerzeuger, und einzelne Energiespeicher für elektrische Energie und für Wärmeenergie erhält und aus diesen Informationen sowohl die Energieerzeugung als auch den Energieverbrauch steuert. Erfindungsgemäß ist vorgesehen ein Empfangen (Schritt 1) von Prognosedaten (17) über Wetter und/oder sich in Bezug auf den Energieverbrauch auswirkende Ereignisse über mindestens ein Kommunikationsnetzwerk durch die mindestens eine zentrale Steuerungseinheit (16), Berechnen (Schritt 2) des über einen festgelegten Zeitraum benötigten Energieverbrauchs und des Verbrauchsprofils aus den Prognosedaten (17) und aus historischen Verbrauchsdaten (18) durch die mindestens eine zentrale Steuerungseinheit 16), Laden (Schritt 3) der einzelnen Energiespeicher durch die einzelnen Energieerzeuger, wobei die Ladung und Entladung durch die zentrale Steuerungseinheit (1) zeitlich vor dem berechneten Energieverbrauch ausgelöst wird. Durch die Erfindung ist es möglich, ein Gebäude in Bezug auf das öffentliche Stromnetz stromneutral zu betreiben.
Abstract:
Wireless Control and Sensing Apparatus and Method for an Emergency Luminaire Apparatus for wirelessly controlling and sensing of an emergency luminaire and its local environment comprises a power control unit comprising a switch connectable between a power terminal of the emergency luminaire and a lighting circuit for supplying electrical power to the emergency luminaire, a power monitoring module connectable to a battery for supplying electrical power to the luminaire in event of a mains failure, the power monitoring module being configured to measure an output voltage and/or current of the battery, and a wireless communication module configured to communicate wirelessly with a network. The apparatus is configured to control the switch in accordance with a control signal received from the network, to control the supply of electrical power to the luminaire from the lighting circuit, and is configured to transmit information about the measured output voltage and/or current over the network via the wireless communication module. In some embodiments, the apparatus forms a wireless network within the emergency lighting infrastructure that can participate in the delivery of the Internet of Things by relaying signals to/from the network and a wireless-enabled device in the vicinity of the apparatus.
Abstract:
Proposed method and system provide remote measurement of available capacity of the batteries, which are the reserve of energy in the telecommunications facilities, mainly those comprised in the critical telecommunications infrastructure. To initiate remotely individual discharge of each of at least two batteries in the power system (PS), the system negative bus (-) is connected to the battery (B1, Bn) through the individual high-current contactors (P1, Pn), replacing the common low-voltage switch, which are connected by the microprocessor control unit (MCU), which also controls the low-current contactors (p1, pN) connected to these batteries, and with the second contacts connected to the second input (B) of the controlling-measuring device (TBA-ST). This device is permanently installed in the power system (PS) and at the command from the monitoring center (MC) it measures using the method of controlled discharge with constant current, the capacity of each of the batteries, disconnected by the microprocessor control unit from the power system during this operation.
Abstract:
A system includes a control unit having a processor and a communication interface. The communication interface is configured to communicate with one or more charging stations that are electrically coupled to receive electrical power from a power distribution grid and that are configured to selectively charge one or more energy storage devices connected to the charging stations. The processor is configured to generate first control signals for communication by the communication interface to the one or more charging stations to control transfer of reactive and/or active power from the charging stations to the power distribution grid. The control signals are generated based at least in part on a load cycle profile of one or more electric machines electrically coupled to the power distribution grid.
Abstract:
The present disclosure is directed to energy storage and supply management system. The system may include one or more of a control unit, which is in communication with the power grid, and an energy storage unit that stores power for use at a later time. The system may be used with traditional utility provided power as well as locally generated solar, wind, and any other types of power generation technology. In some embodiments, the energy storage unit and the control unit are housed in the same chassis. In other embodiments, the energy storage unit and the control unit are separate. In another embodiment, the energy storage unit is integrated into the chassis of an appliance itself.