H02J2300/28

Wind turbine with reduced DC-voltage reserve

The invention relates to a method for operating a wind turbine which comprises a power generator, a generator side converter, a grid side converter, a DC link electrically connected to an output of the generator side converter and an input of the grid side converter. The method comprises monitoring a wind turbine signal for detection of an operational condition which requires an increase of an output voltage of the grid side converter, upon detection of the operational condition, initiate an over-modulation mode wherein the grid side converter is operated with a modulation index in an over-modulation range, and upon the detection of the operational condition, initiate a DC-voltage adjustment mode wherein the a DC-voltage of the DC link is increased from a first voltage level towards a second voltage level.

System of critical datacenters and behind-the-meter flexible datacenters

Systems include one or more critical datacenter connected to behind-the-meter flexible datacenters. The critical datacenter is powered by grid power and not necessarily collocated with the flexboxes, which are powered “behind the meter.” When a computational operation to be performed at the critical datacenter is identified and determined that it can be performed at a lower cost at a flexible datacenter, the computational operation is instead routed to the flexible datacenters for performance. The critical datacenter and flexible datacenters preferably shared a dedicated communication pathway to enable high-bandwidth, low-latency, secure data transmissions.

Methods and systems for power control in a non-exporting mode of operation

Aspects of the present invention relate to controlling a renewable energy power plant comprising a plurality of wind turbine generators (WTG)s and an energy storage system (ESS). A method includes: controlling the plurality of WTGs to stop generating power, and thereby to enter a non-exporting mode of operation of the renewable energy power plant, during which one or more auxiliary systems of the renewable energy power plant are powered to maintain at least one of the plurality of WTGs in a standby state, operable to start generating power upon demand; wherein the one or more auxiliary systems are powered during the non-exporting mode of operation.

Networked power plants
11611217 · 2023-03-21 · ·

A method described delivers power to a first load and a second load from networked power plants. The method may include receiving a power delivery profile for the first load, receiving a power delivery profile for a second load, determining a power output capability of a first renewable energy power plant (REPP), and determining a power output capability of a second REPP. The method may also include setting a power output for the first REPP and a power output for the second REPP based on the power delivery profile for the first and second loads and the power output capabilities of the first and second REPPs. The method may also include allocating a combined power output of the first and second REPPs to the first and second loads and delivering the allocated combined power output to the first and second loads.

METHOD FOR STABILIZING THE DC VOLTAGE IN A DC GRID, AND DC-TO-DC CONVERTER FOR CONNECTING A PV GENERATOR TO A DC GRID
20230084081 · 2023-03-16 ·

A method for stabilizing a DC voltage in a DC grid that includes a DC bus connected to a higher-order grid and to which an energy generating system and at least one load are connected. A variable electric grid output is exchanged between the DC bus and the higher-order grid in order to keep the DC voltage in the DC bus at a nominal voltage. The energy generating system includes a PV generator connected to the DC bus via a DC-to-DC converter and which exchanges an electric generator output with the DC bus. In a normal operating mode, the generator output is set to a normal operating output by the DC-to-DC converter on the basis of an MPP output of the PV generator. In a grid support mode, the generator output is set to a grid support output on the basis of the DC voltage in the DC bus in order to counteract a power imbalance between the electric power supplied in total to the DC bus and the power drawn in total from the DC bus.

RELATING TO BIPOLE POWER TRANSMISSION SCHEMES

A bipole power transmission scheme includes a first converter station that is positioned, in-use, remote from a second converter station. First and second transmission conduits and a return conduit interconnect, in-use, the first converter station with the second converter station and thereby permit the transfer of power between the first and second converter stations. The first converter station includes a first power converter, a second power converter, and a converter station controller.

Fault control for a wind farm with prioritization of the external setpoint-value specifications
11482862 · 2022-10-25 · ·

A method for controlling a wind farm, which is operated by means of a wind farm control unit and comprises a multiplicity of wind power installations having wind power installation controllers and being connected to one another via a common wind farm grid, which is connected to an electrical power supply grid of a grid operator by means of a wind farm transformer, comprising the following steps: reception of at least one fault bit at the wind farm control unit, in particular at least one fault bit of the grid operator, deactivation of all external setpoint value specifications at the wind farm control unit apart from those of the grid operator after reception of the fault bit, activation of a closed-loop fault case control implemented in the wind farm control unit after successful deactivation of all external setpoint value specifications apart from those of the grid operator.

Mobile EV Charging Station
20230081083 · 2023-03-16 ·

A mobile electronic vehicle (EV) charging station is provided. The charging station may include one or more charging bays for charging electric vehicles (EVs). The charging station includes a plurality of batteries within an interior compartment to supply power for charging the EVs. There is a power delivery subsystem to control supply of electrical power from the batteries to the charging bays. The charging station self-driving to move between a first position to a second position. In some cases, the charging station includes a drive subsystem that controls speed and/or steering based on wireless communications.

TWO-STEP OSCILLATION SOURCE LOCATOR

Provided is a system and method for detecting source(s) of oscillation on a power grid. In one example, the method may include receiving measurements from one or more sensors on a power grid, the measurements including data of an oscillation within the power grid, determining, via execution of one or more machine learning model, a candidate set of power system components disposed on the power grid that are candidates for being the source(s) of the oscillation, identifying, via execution of an optimization model, a component from among the candidate set of power system components which is the source (e.g., location, controller type, and/or asset type) of the oscillation, and displaying, via a user interface, information about the identified component.

Vehicle roof-mounted wind generator assembly having a curved front housing portion and a horizontal-axis wind turbine
11480154 · 2022-10-25 ·

A wind generator assembly for harnessing wind to charge batteries in electric vehicles and hybrid vehicles includes a housing that is mounted on a roof of a vehicle. The housing has a wind passage extending therethrough and wind passes through the wind passage when the vehicle is driven. A turbine is rotatably positioned in the housing. The turbine is positioned in the wind passage and the turbine is rotated by wind passing through the wind passage. A generator is mounted in the generator space and the generator is in mechanical communication with the turbine. Thus, the turbine rotates the generator when the turbine rotates thereby facilitating the generator to produce electrical current. The generator is electrically coupled to batteries in the vehicle to charge the batteries.