Full Description
Scope
This guide specifies the requirements and testing methods for a stationary energy feedback system to be used in trackside installations for a DC electrified railway power supply network. This system can harvest electric energy from the DC power supply network and feed the energy back to the AC power supply network.This guide covers terms and definitions, rating values, performance requirements, and test requirements. Performance requirement include efficiency, temperature, lifetime, control and protection, electromagnetic compatibility (EMC), and mechanical characteristics. Test requirement will cover methods and criteria for type test, routine test, and commissioning test.This guide covers systems that are installed to achieve the feedback of regenerative energy or power compensation.However, the systems which have the following functions but are not apart an energy feedback system are not included:* Resistive consumption of regenerated power* Energy storage system* Bidirectional converter systems (etc. reversible substation) instead of diode rectifiers and invertersAlthough it is assumed that the system uses the following typical semiconductor devices as the converter switch component, this guide is intended to apply to other existing or future devices:* Thyristor* Insulated Gate Bipolar Transistors (IGBT)
Purpose
The purpose of this guide is to standardize the performance requirements and testing methodology for energy feedback systems. In addition, the use of this guide is to achieve:- Efficient use of regenerative energy (energy conservation)- Reduction of rolling stock maintenance (reduction of pads/brake shoe wear, etc.)- Avoid adverse effects of heat generated during braking (e.g. in tunnels, etc.)- Provide reactive power compensation for grid- Allow for the reduction of the rectifiers' design capacity
Abstract
New IEEE Standard - Active - Draft.In the DC electric railways, when a train regenerates power, usually the power has to be consumed within the DC network, because the DC Traction Power Systems are usually not reversible. There are several technologies to improve receptivity: energy consumption, energy feedback and energy storage. Solution selection depends on the application. The Energy Feedback Systems (EFSs) convert energy to AC power system as system DC voltage rises. Engineers are helped by this guide to decide where these EFSs can provide the greatest benefits, design solutions with the maximum effectiveness, and evaluate the costs and benefits of developing new EFS projects.
