1122 results about "Intelligent electronic device" patented technology

A system for modifying the functionality of intelligent electronic devices installed and operating in the field is disclosed. Each of the intelligent electronic devices operates with a software configuration to monitor electrical energy. A copy of the software configurations may be maintained in a database. Changes to the operation of one or more of the intelligent electronic devices may be made as a function of modifications to the database.

Systems and methods for communicating data from an IED on an internal network to a server, a client or device on an external network through a firewall are provided.

The present disclosure is directed to an intelligent electronic device (IED) configured for use in an Internet of Things (IoT) environment. The IoT environment of the present disclosure may include one or more objects or things in addition to the IED coupled together via a network, where each device is configured for IoT communication.

A method and apparatus provides high-accuracy measurements of an electrical parameter across a broad range of parameter input values. In one embodiment, an intelligent electronic device (IED), e.g., a digital electrical power and energy meter, with a plurality of independently-adjustable gain factors measures a parameter, and calculates and stores calibration factors associated with known values of the measured parameter. The IED or meter applies the stored calibration factors when measuring unknown values of the measured parameter, to improve the accuracy of the measurement.

There is provided an intelligent electronic device for responding to user data and information requests regarding power usage and power quality for any metered point within a power distribution system. The intelligent electronic device includes a first network interface which receives client side information and data requests, which are processed in accordance with a network protocol and forwarded to a network interface via a network socket interface translator which translates management signals to facilitate the eventual data transfer. Protocol routines process the requests by constructing an internal data request in certain cases and forwards the internal data request to a data interface for translation from an internal data request format of the protocol routine format to a native database format. The database receives the translated request, and retrieves the requested data from a measuring unit of the electric power meter, and forwards the data back to the requesting client.

A wearable wireless intelligent electronic device having removable and freely-combinable functional modules. The device comprises a body part and a connection part, wherein the body part at least comprises a central processing unit and a display, and the connection part electrically connects with the body part, and said wearable wireless intelligent electronic device is worn on a user's body by means of the connection part. The connection part comprises multiple functional modules, and the functional modules can be combined according to the functions to be achieved by the said wearable wireless intelligent electronic device. The wireless intelligent electronic device can be set on the user's body by means of the connection part, so it is portable. Meanwhile, the connection part comprises multiple waterproof functional modules connected in series, thus the user can choose needed functional modules according to the actual needs.

The invention provides a centralized digital transformer substation system. By adopting various new technologies and new devices, a new level centralized multifunctional intelligent device and a system are realized, thereby laying the foundation for the construction of a digital electric network. Based on an IEC 61850 standard, high speed Ethernet exchange and a virtual local area network (VLAN) technology, the system constructs a digital transformer substation information model and a communication network, and realizes sharing of information of the whole substation. On the basis, function integration of a digital transformer substation is realized and a system structure is simplified. A bay level multifunctional intelligent electronic device, i.e. a system controller integrates the functions of protection, measurement and control, wave recording and the like into a whole, and greatly simplifies the bay level device and wire connection; a process level intelligent terminal integrates the functions of a merging unit and an intelligent operation box into a whole; and all devices of each level provide models and interfaces conforming to the IEC 61850 standard.

Provided is a system and method of configuring IEDs to facilitate standardized communication messages among a plurality of IEDs within a power system network based on the IEC 61850 standard. A description file is described for an intelligent electronic device configured in accordance with the IEC-61850 standard. The description file includes a section which indicates which GOOSE message the intelligent electronic device should receive. In yet another embodiment, the description file includes a section which is capable of linking to logic functions of the intelligent electronic device for performing programmable data binding or dynamic data binding. A configuration tool is further provided for editing and creating such description files. A method for selectively receiving messages from an intelligent electronic device configured in accordance with the IEC-61850 standard is also described herein, along with a method for optimizing file space and improving execution speed of an intelligent electronic device configured in accordance with the IEC-61850 standard.

An intelligent electronic device (IED) includes a user authentication module configured for authenticating authorized users of the IED and preventing an access by non-authorized personnel to a user-selectable portion of operational features of the IED. In exemplary embodiments, the user authentication module includes a database of information authenticating an authorized user and a sensor acquiring user-identifying information (e.g., a biometric sensor, a reader of magnetic, holographic, RFID, or smart ID cards, or a keypad). In one application, these techniques are implemented in IEDs such as electrical power and energy meters and used to control access to reset, configuration, billing, communication, and data acquisition/processing functions of the meters.

Systems and methods are described for software-defined approaches to energy communication networks (ECNs). For example, electrical substations typically host many Intelligent Electronic Devices (IEDs) that monitor and/or control the state of the substations' electricity infrastructures. Critical data from the IEDs can be packaged and transmitted between multiple IEDs for proper system monitoring and control. Even modern networks that interconnect IEDs tend to manifest many limitations, ranging from setup complexity to security policies. Embodiments use novel software-defined networking techniques to address these and other limitations. In some embodiments, power system requirements (e.g., data and communications requirements of IEDs) are translated into a set of networking requirements (e.g., as central routing tables). One implementation uses a Ryu-based, software-defined network controller. Embodiments provide features, such as auto-configuration, security management, re-routing, and flexibility to handle rapid evolution of the smart grid.

A voltage analysis algorithm for automatically determining anomalous voltage conditions in an electrical system monitored by a plurality of intelligent electronic devices (IEDs) and automatically making recommendations for ameliorating or eliminating the anomalous voltage conditions. The electrical system hierarchy is determined automatically or manually, and the algorithm receives voltage data from all capable IEDs. The voltage data is temporally aligned or pseudo-aligned to place the voltage data in both spatial and temporal context. The algorithm determines anomalous voltage conditions systemically by comparing measured voltage values against nominal or expected ones across the system. Based on the spatial and temporal context of the IEDs, the algorithm automatically identifies a source of the voltage deviation in the hierarchy, and recommends a modification associated with the source for mitigating the anomalous voltage condition. The algorithm checks its recommendation to determine any adverse effects on the electrical system and adjusts the recommendation accordingly.

An intelligent electronic device (IED) having an interface for displaying data sensed and generated by the intelligent electronic device and other IEDs on a network is provided. The intelligent electronic device includes at least one sensor coupled to the electric circuit configured for measuring at least one power parameter of the electrical circuit and generating at least one analog signal indicative of the at least one power parameter; at least one digital to analog converter coupled to the at least one sensor configured for receiving the at least one analog signal and converting the at least one analog signal to at least one digital signal; a processor configured for receiving the at least one digital signal and generating energy data; a communication device configured for accessing at least one second intelligent electronic device; and an interface configured for displaying data generated by the at least one second intelligent electronic device.

An intelligent electronic device (“IED”) includes at least one function module that performs a specified function or feature. The function module operates to perform a power management function in conjunction with IED. The IED operates with a one key code corresponding to the power management function. The key code operates to enable or disable the power management function.

A method and system restores power in a power distribution network. The network includes a plurality of power sources, a plurality of loading zones, a plurality of switching devices interconnected between the plurality of power sources and the plurality of loading zones, and an intelligent electronic device associated with each of the plurality of switching devices to control the switching devices. A base network state is defined and a power restoration logic is created for the base network state. A simulation is run for the power restoration logic and then the power restoration logic is transmitted to a power restoration controller which thereafter monitors and controls the intelligent electronic devices.

An intelligent electronic device (IED) integrating a power metering unit (PMU) and a merging unit that combines signals from both analog transformers and digital transformers into a set of merged digital samples. Analog current/voltage signals from analog CTs/PTs are received at the IED's analog inputs and converted to digitized samples. Digital current/voltage samples from digital CTs/PTs are received via point-to-point connections at digital inputs of the IED. A tagging unit applies metadata tags to the digitized and digital samples. The metadata tags include the transformer providing the input signal, sampling rate, primary and/or secondary timestamps, scaling values, calibration values, and/or the location of the IED in the electrical system. The PMU performs metering and/or power quality calculations on the samples, and the calculation results are formatted and transmitted via a master-slave protocol to a requesting master. A grouping unit groups the merged samples into default or custom groupings, which are formatted and transmitted over a network via a publish-subscribe mechanism.

Exemplary embodiments of the present disclosure automatically generate Virtual Local Area Network (VLAN) configuration data from a logical data flow between intelligent electronic devices (IEDs) of a process control (PC) system in accordance with a standardized configuration representation of the system. The process IEDs, switches of an Ethernet switch-based communication network to which the IEDs are connected, and connecting cables are made aware of the assigned VLANs. Any performance analysis or diagnosis on these components can show design problems with VLANs and communication architecture already at engineering or communication system design time.

The present disclosure describes apparatus, methods, and system for secure access control of an intelligent electronic device (“IED”) by multiple personnel. Within the IED a set of basic permissions is defined. A software program allows a security administrator create specific roles from the basic permissions. The software program can then be used to assign to a user a specific role for one or more specific IEDs. This action creates a set of unique security keys for the user and a unique security file for each IED. When a user accesses an IED the system identifies the user from the security key and determines his/her permissions using the security file. The security key may take the form of a password inputted into the IED, an access device incorporated within the IED, and/or a remote access device positioned proximate the IED or removably positioned in the IED.

Disclosed is a fault diagnosis device for diagnosing a fault in a bay Intelligent Electronic Device (IED) for a substation automation system, which includes an online IED diagnosis device and a backup IED. The online IED diagnosis device includes an IED selection unit, an IED switch unit, a fault diagnosis, and a result display unit. With reference to a Substation Configuration Description (SCD) file, the online IED diagnosis device designates an IED to be tested, and extracts backup information for the IED to be tested. A backup IED replaces the operation of the IED to be tested based on the extracted backup information. Further, the online IED diagnosis device determines the occurrence or non-occurrence of a fault in the IED to be tested by analyzing response information received in response to transmission of a test pattern to the IED to be tested.

Substation automation (SA) systems are disclosed such as systems for configuring an International Electrotechnical Commission (IEC) 61850 standard-compliant Intelligent Electronic Device (IED) in a SA system. A proxy IED is a NCC gateway device enhanced for converting data between non-IEC 61850 and IEC 61850 communication protocols. Proxy IED is configured, based on a set of mappings, which are coded in the SA configuration description (SCD) file. The SCD file can include mappings for data conversion between non-IEC 61850 and IEC 61850 communication protocols.