Patents for H02J 3 - Circuit arrangements for ac mains or ac distribution networks (38,663)
03/2012
03/08/2012US20120056483 Power converter for a solar panel
03/08/2012US20120056482 Building With Energy Recovery and Storage Systems
03/08/2012US20120056479 Load sharing apparatus
03/08/2012DE102011053237A1 Verfahren zur Stabilisierung eines elektrischen Versorgungsnetzes A method for stabilizing an electric supply network
03/08/2012DE102010044724A1 Verfahren zur verbesserten Verlustenergieprognose in einem Übertragungsnetz Method for improved energy forecast loss in a transmission network
03/08/2012DE102010040296A1 Verfahren für den Wechsel zu einem günstigeren Verbrauchstarif für ein Hausgerät sowie dafür geeignetes Hausgerät Method for changing to a lower consumption rate for a domestic appliance and ensure appropriate domestic appliance
03/08/2012DE102010037396A1 Verfahren und Vorrichtung zur Erkennung von Stromasymmetrie in Drehstromnetzen Method and apparatus for detecting current unbalance in three-phase systems
03/07/2012EP2425513A1 Submodule for a multi-stage power converter having additional energy storage device
03/07/2012EP2425512A1 Methods and systems for no-break power transfer with a converter
03/07/2012EP1851777B1 Systems and methods for distributed series compensation of power lines using passive devices
03/07/2012CN202160355U Reactive power automatic compensation control cabinet
03/07/2012CN202160105U 一种三相功率调节器 A three-phase power regulator
03/07/2012CN202159983U Zero-voltage ride through system for double-fed wind generator
03/07/2012CN202159982U Solar photovoltaic grid-connected inverter based on digital signal processor (DSP)
03/07/2012CN202159981U Single-phase controllable saturable reactor
03/07/2012CN202159980U High pressure automatic reactive compensation cabinet
03/07/2012CN202159979U Intelligent reactive power adjustment and compensation device
03/07/2012CN202159978U Comprehensive control device for controllable reactor
03/07/2012CN202159977U Modularized active filtering device based on multi-DSP control
03/07/2012CN202159976U Harmonic control and dynamic reactive compensation comprehensive control device
03/07/2012CN202159567U Self-excitation magnetic valve type controllable reactor
03/07/2012CN102368621A Photovoltaic grid-connected power generation device
03/07/2012CN102368620A Wind-energy/ solar-energy/ storage/ ocean-current-energy new-energy isolated network stabilization operation integration control system and method thereof
03/07/2012CN102368619A Method for evaluating access requirement of direct-current solitary island power transmission system
03/07/2012CN102368618A Three-phase large-power intermediate-frequency power supply parallel method and system based on drooping characteristic control
03/07/2012CN102368617A Storage battery control method smoothing power fluctuation based on wind power prediction and system thereof
03/07/2012CN102368616A Power factor compensation control circuit of self-turn-off device
03/07/2012CN102368615A SVC (static vary compensation) closed type circulating pure water cooling system
03/07/2012CN102368614A Movable static var compensator and direct current ice-melting device and realization method thereof
03/07/2012CN102368613A Integrated control device used in MCR
03/07/2012CN102368612A Triple-double wiring way of medium-voltage electric distribution network
03/07/2012CN102368611A Board card for flexible alternating-current power transmission device
03/07/2012CN102368610A Evaluation method based on distribution system security region
03/07/2012CN101667733B Capacitance compensation switching switch
03/07/2012CN101551833B Computation method of thyristor broadband electromagnetical transient based on electric charge control theory
03/07/2012CA2751768A1 Method for connecting an inductive load and connecting circuit for carrying out the method
03/06/2012US8129863 Connection apparatus for parallel running generators
03/06/2012US8129862 Scalable highest available voltage selector circuit
03/06/2012US8129859 Extension cord with wireless timing function
03/06/2012CA2609713C Electric power supply system
03/06/2012CA2590144C Dual voltage switching of induction generator or motor
03/01/2012WO2012026573A1 Electrical power management device
03/01/2012WO2012026525A1 Electric power management system and management server
03/01/2012WO2012026450A1 Combiner box for solar power generation
03/01/2012WO2012026448A1 Solar photovoltaic power generation device and method for controlling same
03/01/2012WO2012026432A1 Marine denitration system, marine vessel equipped with same, and control method for marine denitration system
03/01/2012WO2012026229A2 Method for scheduling the operation of power generators
03/01/2012WO2012026108A1 Power management system
03/01/2012WO2012026014A1 Wind power generation apparatus and output control method
03/01/2012WO2012025756A2 Outdoor fitness centre and associated apparatus
03/01/2012WO2012025721A2 Apparatus and method for use in transferring an electrical power supply in order to bypass a transformer based voltage optimization device
03/01/2012WO2012025684A1 Photovoltaic facility and method for supplying electrical power equal to a predetermined value
03/01/2012WO2012025660A1 Device and method for filtering in electrical power networks
03/01/2012WO2012025256A1 Drive system for a battery-operated vehicle
03/01/2012WO2012024984A1 Modular multilevel converter-based transformerless battery energy storage topology
03/01/2012WO2011139833A3 Method and apparatus for distributed power generation
03/01/2012WO2011124459A3 Onboard floating drilling installation and method for operating an onboard floating drilling installation
03/01/2012US20120054504 Power booster and electronic system using same
03/01/2012US20120053848 Emission factor calculating apparatus and emission factor calculating method
03/01/2012US20120053751 Distributed electrical power production system and method of control thereof
03/01/2012US20120051444 Method and apparatus for communicating message signals in a load control system
03/01/2012US20120049640 Power transmitting apparatus and power transmission system
03/01/2012US20120049639 Smart plug with internal condition-based demand response capability
03/01/2012US20120049638 System and method for paralleling electrical power generators
03/01/2012US20120049637 Methods and Systems for Operating a Power Generation System
03/01/2012US20120049636 System and method for distribution of inverter var support
03/01/2012US20120049635 Solar power generation system and method
03/01/2012US20120049626 Power demand surge management circuit
03/01/2012US20120049625 Power limiting control for multiple drilling rig tools
03/01/2012US20120049622 Offshore compound renewable power plant
03/01/2012US20120049521 Wind turbine generator system
03/01/2012DE202012001178U1 Steuereinheit zur lokalen Regelung der Einspeiseleistung von netzgeführten Wechselrichtem durch kontrollierte Speicherung oder Verbrauch von elektrischer Energie Control unit for local regulation of feed-in line-commutated Wechselrichtem by controlled storage or consumption of electric energy
03/01/2012DE102011053094A1 Wechselrichter mit AC-Schnittstelle zum Anschluss von AC-Modulen Inverter with AC interface for connecting AC modules
03/01/2012DE102010040007A1 Method for independent connecting self-sufficient units of alternating-current voltage source with alternating-current network, involves providing voltage in area on network by using internal voltage before connecting self-sufficient units
03/01/2012DE102010039836A1 Haushaltsgerät sowie Steuermodul für ein solches Haushaltsgerät Household appliance and control module for such a household appliance
03/01/2012DE102010039834A1 Haushaltsgerät Home Appliance
03/01/2012DE102010036087A1 Method for supplying electrical load i.e. lithium-ion battery, with electrical energy in electric car, involves partially transmitting electrical energy to electrical load that is supplied with energy without immediate loading of supply net
02/2012
02/29/2012EP2424066A2 System and method for distribution of inverter VAR support
02/29/2012EP2423604A1 Domestic appliance and method for operating same
02/29/2012EP2422421A1 Energy generating installation, especially wind power installation
02/29/2012EP2422420A1 Electrical energy generating installation driven at variable rotational speeds, with a constant output frequency, especially a wind power installation
02/29/2012EP2422419A1 Electrical energy generating installation driven at variable rotational speeds, with a constant output frequency, especially a wind power installation
02/29/2012CN202153719U Double-fed motor energy saving control system based on PLC and frequency converter
02/29/2012CN202153699U Self-starting permanent magnetic outer rotor type three phase synchronous motor
02/29/2012CN202153641U Non-magnetic-leakage iron core self-shielding controllable reactor
02/29/2012CN202153640U 一种emi滤波装置 One kind emi filter device
02/29/2012CN202153611U Mechanical and combination drilling machine high voltage power distribution compensating device
02/29/2012CN102365812A Current share configuration in a power converter system
02/29/2012CN102365593A Distributed electrical power production system and method of control thereof
02/29/2012CN102364872A Variable frequency energy saving device for low-voltage three-phase asynchronous motor control system
02/29/2012CN102364807A Electric energy recovery device for activation discharging of storage battery
02/29/2012CN102364806A Photovoltaic grid-connected inverter
02/29/2012CN102364805A Wind/solar hybrid generation system net-connected controller and change-over switch switching method thereof
02/29/2012CN102364804A Independent electrical energy storage system
02/29/2012CN102364803A High-voltage line type intelligent reactive power compensation device
02/29/2012CN102364802A Reactive power terminal compensation energy-saving device for three-phase low-voltage asynchronous motor
02/29/2012CN102364801A Four-quadrant reactive power control method for excitation system of pumped storage unit
02/29/2012CN102364800A Passive filter parameter design method based on multi-objective optimization algorithm
02/29/2012CN101807797B Rapid fault diagnosis method used for microgrid
02/29/2012CN101719672B Active power filter and energy reforming control method thereof