Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 301 - 350 out of 47,611

Document Document Title
WO/2019/137639A1
An offshore wind farm (1) comprising a number of wind turbine generator arrays (5). Each wind turbine generator array (5) comprises an array transformer (6) and a number of wind turbine generators (6) connected, in use, electrically to t...  
WO/2019/135488A1
Disclosed is an emergency disconnect circuit for an energy storage system, capable of being smoothly operated during power outages and in recovery situations, respectively. For example, disclosed is an emergency disconnect circuit connec...  
WO/2019/134258A1
Disclosed is a reliability approximation calculation method for a large-scale multi-state system having a cascading structure. In a multi-state system having a cascading structure, connection structures between any parent node and all ch...  
WO/2019/135327A1
This power management system has a holding function for holding power in the form of storable energy, and a supply function for supplying power procured from a contractor to said holding function, and configures an operational range of t...  
WO/2019/134928A1
The invention relates to a method for feeding electrical power into an electrical supply grid, comprising the steps of: rectifying a first AC voltage of a electrical power, which is produced by a generator, into a first DC voltage, and i...  
WO/2019/134860A1
Method (1) for detecting an input channel configuration of a multi-channel inverter (100) having a plurality of input channels (CH1, CH2, CHi-1, CH1, CHN-1, CHN). Each input channel is electrically connected with a corresponding power co...  
WO/2019/134801A1
An electrical luminaire receives an AC supply as well as an auxiliary power supply. A power converter converts the AC power to supply a lighting element. A power factor associated with the AC supply is used as a control input for selecti...  
WO/2019/135329A1
Provided is an information processing device comprising: a power information acquisition unit that obtains power information including information indicating the amount of power provided by a user or the amount of power scheduled to be p...  
WO/2019/134532A1
Provided is an operating method of a combined heat and power system containing wind and light renewable energy. The method comprises: setting an optimization objective and a constraint function of the system containing the wind and light...  
WO/2019/136161A1
This application discloses a system that may comprise at least a portion of a supply network. The system may further comprise a load controller that controls current flow with a current level of I1 into a load network that provides power...  
WO/2019/136267A1
A battery-powered device, such as a motorized window treatment, may provide power to an electrical load, such as a motor. The device may also include a control circuit and a communication circuit. In addition to the battery, the device m...  
WO/2019/134783A1
The invention relates to an assembly for reducing the reactive power in a single or multiphase AC network with a complex phase current (I). The assembly has: - a synchronous generator (1) which generates the complex phase current (I); an...  
WO/2019/135330A1
An energy supply and demand system comprising: a time identification unit that identifies a predicted energy shortage time for a target energy station on the basis of a weather prediction for a region to which the target energy station b...  
WO/2019/130665A1
In a conventional technique, when a new energy power plant at another site is interconnected to the same system, it is impossible to suppress a voltage fluctuation caused by an output power fluctuation at the other site, so that it is im...  
WO/2019/130854A1
[Problem] To provide a power supply mediation device that makes is possible for the power consumer side to take the initiative to stabilize the power system and suppress power consumer peak-power. [Solution] Provided is a power supply me...  
WO/2019/131228A1
A first power management system server 14a controls a power storage system 40 that is installed at a customer site 16 and connected to a power system 30. A frequency detector 600 detects the frequency of the power system 30 or a differen...  
WO/2019/128145A1
Disclosed in embodiments of the present invention are a converter and an electric control system for a wind farm power transmission system, and a power transmission system. The converter comprises three cascaded power strings, wherein ea...  
WO/2019/131361A1
A non-contact power transmission device is configured with which a primary circuit that supplies power and a secondary circuit that supplies the power supplied from the primary circuit to a load are coupled via a transformer, the non-con...  
WO/2019/127969A1
Provided in the present invention are a microgrid control system and a microgrid, the microgrid control system comprising: a grid-connected switch, an energy router, a first controller and a second controller; the first controller contro...  
WO/2019/132054A1
The present invention relates to a system for controlling peak demand of consumers by using an energy storage device. The present invention comprises: a short-term demand prediction module for predicting a 15-minute average power demand ...  
WO/2019/130375A1
An electrical power conversion device (100) comprises a common DC bus line (1), an AC bus line (2), a DC connection terminal (3), an AC connection terminal (4), and N pairs of distributed electrical power connection terminals (13) and fu...  
WO/2019/131229A1
A power management system server 14 is connected to a group management system server 12 that transmits a control command to an electricity storage system group including an electricity storage system 40 installed at each of a plurality o...  
WO/2019/132774A1
A communication module, a communication system and a method of communication for a distributed energy generator connected to a power grid network for supply of energy into an energy pool of the power grid network. The communication modul...  
WO/2019/133692A1
A hybrid power system, includes at least one first isolation transformer having an input configured to be connectable to an output of a power supply; an energy storage system having at least one energy storage device and a power conversi...  
WO/2019/129729A1
A method and system is described to determine unbalance compensating currents to be injected or consumed by a three-phase converter by current redistribution. First load- current is decomposed to outputs of at least negative- and zero-se...  
WO/2019/128035A1
Provided are a power control method and a device for a wind turbine generator system. The method comprises: determining a compensation value of an active power target value according to a power difference between a net power and the acti...  
WO/2019/127898A1
A reactive power allocation method for multiple grid-connected photovoltaic inverter systems comprises three-level reactive power optimization control. The method comprises: performing real-time measurement of a voltage at a point of com...  
WO/2019/133803A1
According to various embodiments, a dual-band multi-receiver (DBMR) wireless power transfer (WPT) system is disclosed. The WPT system includes a transmitter including a first dc-dc converter coupled to a first inverter, a second dc-dc co...  
WO/2019/127382A1
A flywheel storage UPS drive control method and apparatus, based on a flywheel storage UPS power supply system, and comprising detecting the grid power supply state in the system in real time and processing a detection signal (S1); after...  
WO/2019/128037A1
A photovoltaic power plant and a secondary frequency modulation control method therefor The photovoltaic power plant comprises a photovoltaic power station and an active power control system, wherein the photovoltaic power station compri...  
WO/2019/128038A1
Disclosed are a subsynchronous oscillation suppression method and apparatus, and a controller for a converter, used for controlling a converter. The method comprises: acquiring the magnitude of power fluctuation generated by subsynchrono...  
WO/2019/128036A1
Disclosed are a photovoltaic power plant and a primary frequency modulation control method therefor. The photovoltaic power plant comprises a photovoltaic power plant and an active power control system, wherein the photovoltaic power pla...  
WO/2019/128335A1
A distribution network topology error identification algorithm, comprising: calculating the voltage of a coupling node to which each load belongs, and obtaining a coupling node voltage sample space to which the loads belong; calculating ...  
WO/2019/130540A1
Provided is a system that contributes to realizing low-cost power generation. A system according to the present invention includes a plurality of mining units and a control device. Each of the plurality of mining units executes a task fo...  
WO/2019/129543A1
The invention relates to energy supply systems and electrical outlets. In particular, the invention relates to energy supply systems comprising an electrical power source connected to an inverter device for forming a local power grid.The...  
WO/2019/132435A1
The present invention relates to a method for controlling the output level of an MMC converter for reducing a system frequency change, the method being capable of adjusting the output level of an MMC converter in response to a system fre...  
WO/2019/130126A1
Identifying a fault location in a power transmission line (402) includes obtaining synchronized disturbance records from each of the terminals after a fault has occurred in the power transmission line (402). Pre-fault voltage and current...  
WO/2019/131227A1
A recognition unit 224 recognizes whether power is in a reverse flow state from a customer 16 to a power system 30 or in a forward flow state from the power system 30 to the customer 16. If the recognition unit 224 has recognized the rev...  
WO/2019/129864A1
The present invention provides a nanogrid and a virtual in- verter controller (VIC) (100, 200, 300) for the nanogrid (1), wherein said nanogrid (1) comprises at least one parallel branch (10, 20, 30, 40), and at least one branch of said ...  
WO/2019/120402A1
The present invention relates to a method for simultaneous operation of a plurality of chopper circuits of a wind turbine power converter, the method comprising the steps of operating a controllable switching member of a first chopper ci...  
WO/2019/120589A1
A charging system (100) comprising converter switches (1, 2) for electrically coupling to a first electrical energy storage device (60), a filter circuit (40) comprising a series inductor (45) and a parallel capacitor (48), a coupling de...  
WO/2019/120397A1
A method (200) for operating a renewable energy power plant comprising a plurality of renewable energy generators. The method comprises: identifying (202) a predetermined condition of the renewable energy power plant, of the grid, or of ...  
WO/2019/120399A1
The invention relates to a method for regulating a power ramp rate of a wind park at a point of common coupling (PCC) between the wind park and a utility grid, wherein the wind farm comprises a plurality of wind turbines each having a po...  
WO/2019/124678A1
A power supply system according to an embodiment comprises: a power generation device for generating electric energy; an inverter for inverting the electric energy into an alternating current; an energy storage system for receiving the e...  
WO/2019/125723A1
A system includes multiple hybrid energy storage modules (HESMs) (114a-114d, 206-210, 402-406, 1614-1616, 1642-1644) configured to accept constant-current DC input power from a main power source (106, 202, 302, 401, 602, 1602). Each HESM...  
WO/2019/123529A1
According to an embodiment of the present invention, a storage battery system is provided which has: a plurality of pairs each including a storage battery and an electric power conversion device that is connected to the storage battery a...  
WO/2019/122481A1
The present invention discloses a converter with cold start-up and a cold start-up method for modular power converters that allows converter operation tests to be carried out without a connection to the AC grid. For that purpose, the con...  
WO/2019/120719A1
The invention relates to a method for operating a battery storage system (1) comprising at least one series-connected string (3, 4, 5), in which at least one first storage module (6, 6', 6") and a second storage module (7, 7', 7"), which...  
WO/2019/120625A1
A system for an electrical power distribution network (105) receives electricity from one or more distributed energy resources (104). The system includes a voltage regulation device (110) configured to maintain a voltage in the electrica...  
WO/2019/120671A1
The invention relates to a charging station for electric vehicles, comprising a mains terminal equipped for connection to an electric grid, a charging connection equipped for connection to an electric vehicle, and a stored energy source ...  

Matches 301 - 350 out of 47,611