The present invention discloses a distributed high-frequency AC electrical system for the electric vehicle. The system divides all loads of the electric vehicle into four load areas according to their spatial positions. Four high-frequency inverters and four DC input interfaces are contained in the system, with each of the four load areas being configured with one of the four high-frequency inverters, and each of the four high-frequency inverters being configured with one of the four DC input interfaces. One end of each DC input interface is connected to the DC side of the corresponding high-frequency inverter, and the other end is connected to the storage battery of the electric vehicle. Each high-frequency inverter outputs a high-frequency AC bus to supply power for the loads in the corresponding load area, and the four high-frequency inverters are in a parallel operation state through a high-frequency connection point that connects the four high-frequency AC buses. The present invention has the advantages of simplifying the electrical system structure of the electric vehicle, improving the system stability, and the like.

The present invention discloses a distributed high-frequency AC electrical system for the electric vehicle. The system divides all loads of the electric vehicle into four load areas according to their spatial positions. Four high-frequency inverters and four DC input interfaces are contained in the system, with each of the four load areas being configured with one of the four high-frequency inverters, and each of the four high-frequency inverters being configured with one of the four DC input interfaces. One end of each DC input interface is connected to the DC side of the corresponding high-frequency inverter, and the other end is connected to the storage battery of the electric vehicle. Each high-frequency inverter outputs a high-frequency AC bus to supply power for the loads in the corresponding load area, and the four high-frequency inverters are in a parallel operation state through a high-frequency connection point that connects the four high-frequency AC buses. The present invention has the advantages of simplifying the electrical system structure of the electric vehicle, improving the system stability, and the like.

Systems and methods for the creation of a centrally controlled DC and AC power rail system within a structure. The rails utilize a centralized controller along with a plurality of distributed controllers to allow for power in the rails to be selectively distributed or not distributed to outlets attached to the rails. This allows for power to be distributed without the need for users to utilize hardwired switches, but to instead utilize generally wireless switch modules, which may be implemented in hardware and/or software to control the outlets. It also allows for devices designed to utilize DC power to be directly supplied with such power from the DC power rail without the need to include onboard AC-DC converters with each device.

Systems and methods for the creation of a centrally controlled DC and AC power rail system within a structure. The rails utilize a centralized controller along with a plurality of distributed controllers to allow for power in the rails to be selectively distributed or not distributed to outlets attached to the rails. This allows for power to be distributed without the need for users to utilize hardwired switches, but to instead utilize generally wireless switch modules, which may be implemented in hardware and/or software to control the outlets. It also allows for devices designed to utilize DC power to be directly supplied with such power from the DC power rail without the need to include onboard AC-DC converters with each device.

An intelligent current control apparatus provides a current control for a power supply branch and a load. The intelligent current control apparatus includes at least one power conversion unit and a control unit. The control unit controls a total phase current, which is composed of a single-phase current and a household phase current in the same phase, to be less than or equal to a rated phase current of the power supply branch.

An intelligent current control apparatus provides a current control for a power supply branch and a load. The intelligent current control apparatus includes at least one power conversion unit and a control unit. The control unit controls a total phase current, which is composed of a single-phase current and a household phase current in the same phase, to be less than or equal to a rated phase current of the power supply branch.

Unintentional islanding (UI) of a circuit of distributed energy resources (DERs) may leave area electrical power systems (EPS), external to the DER circuit, energized. Thus, UI detection methods have been developed to detect unintentional islanding and trigger a UI response. However, individual UI detection methods have various deficiencies. Thus, a consensus-based UI detection process is disclosed that builds a consensus from multiple UI detection sources, optionally implementing different UI detection methods. The redundancy in this consensus-based UI detection process provides robust, sensitive, selective, and cybersecure UI detection for the entire DER circuit. For example, the consensus-based UI detection process may eliminate or reduce non-detection zones, avoid false positives, thwart cyber-attacks, and/or the like.

Unintentional islanding (UI) of a circuit of distributed energy resources (DERs) may leave area electrical power systems (EPS), external to the DER circuit, energized. Thus, UI detection methods have been developed to detect unintentional islanding and trigger a UI response. However, individual UI detection methods have various deficiencies. Thus, a consensus-based UI detection process is disclosed that builds a consensus from multiple UI detection sources, optionally implementing different UI detection methods. The redundancy in this consensus-based UI detection process provides robust, sensitive, selective, and cybersecure UI detection for the entire DER circuit. For example, the consensus-based UI detection process may eliminate or reduce non-detection zones, avoid false positives, thwart cyber-attacks, and/or the like.

Provided is a method for supplying electric power to an electric supply network at a network connection point using a converter-controlled supply apparatus. The converter-controlled supply apparatus may be a wind farm or a wind turbine. A selection is permitted at least between a current-impressing operating mode and a voltage-impressing operating mode for the purpose of supplying the electric power. Open-loop or closed-loop control to a desired current value is substantially or predominantly performed in the current-impressing operating mode, and open-loop or closed-loop control to a desired voltage value is substantially or predominantly performed in the voltage-impressing operating mode.

Provided is a method for supplying electric power to an electric supply network at a network connection point using a converter-controlled supply apparatus. The converter-controlled supply apparatus may be a wind farm or a wind turbine. A selection is permitted at least between a current-impressing operating mode and a voltage-impressing operating mode for the purpose of supplying the electric power. Open-loop or closed-loop control to a desired current value is substantially or predominantly performed in the current-impressing operating mode, and open-loop or closed-loop control to a desired voltage value is substantially or predominantly performed in the voltage-impressing operating mode.