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This standard contains graphic symbols for representing logic functions or physical devices capable of carrying out logic functions. Descriptions of logic functions, the graphic representation of these functions, and examples of their applications are given. The symbols are represented in the context of electrical applications, but most may also be applied to nonelectrical systems (for example, pneumatic, hydraulic, or mechanical).

定价： 222元 / 折扣价： 189 元

This standard contains graphic symbols for representing logic functions or physical devices capable of carrying out logic functions. Descriptions of logic functions, the graphic representation of these functions, and examples of their applications are given. The symbols are represented in the context of electrical applications, but most may also be applied to nonelectrical systems (for example, pneumatic, hydraulic, or mechanical).

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This recommended practice defines the fundamental principles, essential functions, and optional functions of a virtual synchronous machine (VSM). A VSM is a piece of equipment that includes a dc/ac power electronic converter (PEC) controlled to mimic and, in some cases, to surpass the dynamics and behavior of conventional synchronous machines (SM) through the inherent synchronization mechanism of SM. It does not describe or specify power semiconductor devices, hardware topologies, or micro-… read more controllers that are used to build a VSM. This standard is about equipment operation rather than grid requirements, which are covered by IEEE Std 1547-2008 [B2] and IEEE Std 2800-2022 [B3]. Equipment complying with this standard are able to work individually, to form a grid, and to interact with the grid. This standard focuses on VSM only, rather than generic criteria that apply irrespective of the specific control implementation. The boundary of this standard is at the equipment terminals, which includes the phase terminals, plus a neutral terminal, plus a ground terminal on the ac side and the dc-bus terminals on the dc side, while IEEE Std 1547- 2008 [B2] and IEEE Std 2800-2022 [B3] consider the point of connection (PoC) or point of common coupling (PCC) as the boundary. As a result, anything outside of the equipment terminals, such as the energy source, the load, and/or the grid, are not covered in this standard. read less

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This standard specifies ratings and service conditions, environmental performance, and testing requirements for devices with communications functions used with electric power apparatus. Environmental and electromagnetic compatibility (EMC) immunity levels and type-tests simulating environments associated with electric apparatus are described. Acceptance criteria for evaluating device functionality are provided. For devices used with electric power apparatus and with communications ports (… read more optical fiber port, copper wired port [e.g., Ethernet, power over Ethernet, serial, carrier current communications interface], antenna port, etc.), where the device does not perform protection or control functions, testing of the communications functions is covered by IEEE Std 1613. Where the device performs protection or control functions and has communications ports, tests for all communications functions are covered by the IEEE C37.90 family of standards. read less

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This document provides a set of standard verification tasks for processor-based equipment used in safety critical applications on rail and transit systems. The scope of the standard shall encompass and be limited to processes which verify the level of safety achieved in the implementation of safety critical functions which are required to be fail-safe. It does not address quality assurance or validation processes which also affect the level of overall system safety achieved.

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This recommended practice describes integrating and deploying the Multi-agent Systems (MAS) technology in industrial environments for use in building the intelligent decision-making layer on top of legacy industrial control platforms. The integration of software agents with the low-level real-time control systems, mainly based on the Programmable Logic Controllers (PLCs) running the IEC 61131-3 control programs (forming in this manner a new component known as industrial agents) are also… read more identified. In addition, the integration of software agents with the control applications based on IEC 61499 standard or executed on embedded controllers is described. This recommended practice supports and helps the engineers leverage the best practices of developing industrial agents for specific automation control problems and given application fields. Therefore, corresponding rules, guidelines and design patterns are provided. read less

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This standard defines a framework for the Tactile Internet, including descriptions of various application scenarios, definitions and terminology, functions, and technical assumptions. This framework prominently also includes a reference model and architecture, which defines common architectural entities, interfaces between those entities, and the mapping of functions to those entities. The Tactile Internet encompasses mission critical applications (e.g., manufacturing, transportation,… read more healthcare and mobility), as well as non-critical applications (e.g., edutainment and events). read less

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This guide provides the functional requirements for unified power flow controller (UPFC) deployment, including application conditions, system architecture, function requirements, performance requirements, primary equipment requirements, control and protection requirements, auxiliary system requirements, testing, spares, and training of UPFC projects, which are suitable for UPFC in transmission power grids.

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This standard specifies ratings and service conditions, environmental performance and testing requirements for devices with communication functions used with electric power apparatus. Environmental and electromagnetic compatibility (EMC) immunity levels and type-tests simulating environments associated with electric apparatus are described. Acceptance criteria for evaluating device functionality are provided. For devices with communication ports, where the device does not perform protection or… read more control functions, testing of the communication functions is covered by IEEE Std 1613. Where the device performs protection or control functions and has communication ports, tests for all communication functions are covered by the IEEE C37.90 family of standards. read less

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