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Matches 451 - 500 out of 47,947

Document Document Title
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 ...  
WO/2019/124407A1
An electric power consuming device, wherein the switching noise of a switching element is reduced using a plurality of small resistors and a compact switching element. A control voltage generation unit 20A monotonously raises a first con...  
WO/2019/120396A1
A method of controlling a hybrid power plant connected to a power network, the hybrid power plant having a first renewable energy generator and a second renewable energy generator, the first renewable energy generator being configured to...  
WO/2019/120398A1
The invention relates to a method for damping harmonics of a power output of a power plant at a point of common coupling between the power plant and a utility grid, wherein the power plant comprises a plurality of energy production units...  
WO/2019/124479A1
Provided is an energy system provided with: a first mounting unit whereon transportable energy storage equipment that can store energy or an energy source is detachably mounted; a second mounting unit whereon transportable energy storage...  
WO/2019/126802A1
An electrical storage system comprises a first energy storage system and a second energy storage system having a lower electrical energy density and a higher rated electrical power output capability than the first energy storage system, ...  
WO/2019/120406A1
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 inp...  
WO/2019/119667A1
Disclosed by the present application are a variable frequency transformer fault ride through circuit and a control method therefor, comprising: pre-processing collected grid voltage, stator interface voltage and rotor interface voltage t...  
WO/2019/120400A1
A method for controlling a renewable energy generator, the renewable energy generator being connected to a Point of Interconnection of an external power grid by a connecting network, wherein the connecting network has an associated imped...  
WO/2019/119017A1
An electrical power consumption control unit that controls power consumed by one or more electrical devices connected thereto including a computer processor having a memory operably connected thereto storing computer instruction code, th...  
WO/2019/119775A1
The present invention relates to the field of electric system security constrained economic dispatching, and provides a security constrained economic dispatching method for embedded reactive power and voltage. The method comprises: first...  
WO/2019/120404A1
A method for use in controlling a wind turbine generator (1) of a wind power plant based on a condition of a power converter or a component forming part of a power converter in the wind power plant. The method comprises determining the i...  
WO/2019/122768A1
A method for regulating a converter for autonomously stabilizing the frequency of a micro-network comprising a generating set, the method comprising: - determining (110) a power regulation variable (P*) on the basis of a power variation ...  
WO/2019/122233A1
The invention relates to a method for supporting the management of an electrical supply grid (304) or part thereof, comprising the following steps: capturing system states of the electrical supply grid (304) and/or system states influenc...  
WO/2019/119947A1
An islanding protection device for a distributed power supply and a detection algorithm thereof. The islanding protection device comprises a step-down transformer (1), a current-limiting reactor (2), a thyristor (3), and a controller uni...  
WO/2019/116960A1
A long-term prediction unit (23), using a long-term prediction model of power consumption by a user (1), predicts a temporal change in power consumption by the user (1) as long-term predicted power. A short-term prediction unit (25), usi...  
WO/2019/117071A1
A first group management system server 12a controls the fluctuation rate of power from a power storage system group, which comprises power storage systems installed in each of multiple customer households. From a host system server 10, a...  
WO/2019/118297A1
A sequential extraction control device for use in a 3-phase DC/AC converter. The 3-phase converter has three single-phase DC/AC converters, each controlled by a respective PWM extractor. Duty factor adjustments are made depending on a cu...  
WO/2019/115403A1
An inverter (10, 20, 30) for a photovoltaic system comprises - a substantially planar base plate (11) with a front face and a rear face, wherein the rear face forms an outer rear wall of the inverter (10, 20, 30), and with at least one p...  
WO/2019/118745A2
A digital low dropout (LDO) voltage regulator enabling on-chip fine-grain power management in multi-core microprocessor and system-on-a-chip platforms to increase system level energy efficiency. Its design synthesizability with automatic...  
WO/2019/114319A1
The present invention belongs to the technical field of energy, and particularly relates to an idle-time power-up method for an electric device and an idle-time energy supplementing method for an energy-consuming device. In order to real...  
WO/2019/117070A1
A first group management system server 12a controls the fluctuation rate of power from a power storage system group, which comprises power storage systems installed in each of multiple customer households. From a host system server 10, a...  
WO/2019/117957A1
A method, system, and device for controlling an energy storage device are provided. The method includes identifying a predetermined number of features based on forecasted data and data obtained from the energy storage device. The method ...  
WO/2019/116710A1
A first group management system server 12a controls a power storage system group including power storage systems that are installed at a plurality of respective consumers and that are connected to a power grid. An acquisition unit 440 ac...  
WO/2019/118101A1
Systems and methods for operating a power conversion system that includes a sole DC/DC converter are described. The systems and methods reduce a total number of DC/DC converters in a power system that includes an electric energy storage ...  
WO/2019/117198A1
An apparatus and method for estimating the economic feasibility of a storage battery uses a differential voltage between a pre-calculated discharge voltage and a charge upper-limit voltage to estimate an economic feasibility indicator as...  
WO/2019/116711A1
A second group management system server 12b controls a power storage system group including power storage systems that are respectively installed at a plurality of consumers and that are connected to a power grid. An acquisition unit 440...  
WO/2019/116419A1
This power conversion device is provided with a power conversion circuit and a control device. The control device is provided with a virtual power generation device modeling unit and a control signal generating unit. The virtual power ge...  
WO/2019/110411A1
The invention relates to a transformer device (124) for transforming a first alternating-voltage signal into a second alternating-voltage signal for feeding into an electrical supply grid (120), the transformer device comprising: a prima...  
WO/2019/109271A1
A VSC system (200) of a HVDC system and rectifier and inverter stations associated therewith are provided. The VSC system (200) of the HVDC system is upgraded from a LCC HVDC system (100) and includes a plurality of LCC transformers (110...  
WO/2019/111741A1
This power management server comprises a control unit that selects, from among a plurality of facilities having storage battery devices, two or more first facilities on which a first process of reducing the discharge amounts of the stora...  
WO/2019/110421A1
Method of operating an energy system (1), said energy system (1) comprising: - a local common transmission bus (3); - at least one local energy source (9) connected to said bus (3); - at least one local load (11, 13) connected to said bu...  
WO/2019/109842A1
A coordinated control method for a series voltage source converter valve group comprises: allocate a total direct-current voltage reference value or a total active power reference value of a side where a direct-current pole series voltag...  
WO/2019/112541A1
The claimed invention relates in general to multiphase power systems and alternating current devices and, in particular, to methods for maintaining a constant level of alternating load voltage by dynamically compensating voltage distorti...  
WO/2019/112527A1
With the present invention, there is provided an energy storage system for storing electrical energy, and a control method for the energy storage system. Said energy storage system comprises at least two energy storage units (U) and at l...  
WO/2019/109841A1
Disclosed in the present invention is a voltage and current control method for a direct-current power transmission system. The method comprises: calculating a direct-current voltage reference value of a voltage source converter of a dire...  
WO/2019/112729A1
A method for isolating faults in an electrical power system connected to a power grid includes dividing the electrical power system into a plurality of power modules each including a plurality of electrical power subsystems and a substat...  
WO/2019/111647A1
Provided is a rolling system control device (40) that is inexpensive and can achieve highly accurate power factor compensation. Accordingly, the rolling system control device (40) is applied to a rolling system having: a measurement unit...  
WO/2019/112746A1
There are provided systems, apparatuses, and methods for limiting power consumption from an auxiliary power supply. For example, there is provided a system that includes a switching circuit connected to an auxiliary power supply and a lo...  
WO/2019/111080A1
: A high efficiency system for conducting power factor (PF) and harmonics correction in an electrical network, comprising a controller; a digital PFC capacitor array comprising two or more passive PFC capacitors, providing fine steps inc...  

Matches 451 - 500 out of 47,947