With the development of technology, the demand for energy is increasing. With the depletion of energy, energy consumption becomes more and more important in many fields, and the railway industry is no exception. By monitoring the energy and cost lists of each train, it is possible to urge railway operators to optimize energy efficiency. This article describes the new components of LEM; this is the first system that can achieve energy monitoring and cost accounting in compliance with the latest interim standard EN50463.
Automobile energy-saving technology is used to improve the energy consumption of automobiles. Automobile energy-saving measures involve all aspects. As far as China's current situation is concerned, effective measures include the following aspects: reasonable matching of highways and transportation facilities, on-demand production configuration of vehicle models and oil products, and reasonable non-technical problems such as operation. In terms of technology, ensure product quality, use and maintain the machine according to specifications, and change the combustion mode of the gasoline engine to improve energy conversion efficiency. Under the existing combustion method, the following measures can be adopted to save energy: improve the fuel supply system, change the gasoline engine fuel injection of the gasoline engine, which can improve the gasoline combustion efficiency; improve the ignition system, improve the stability of the gasoline engine operation; reduce the loss of engine accessories, and use accessories reasonably And make the corresponding modifications.
In many cities, for the sake of beauty and style, the office buildings in the main blocks are all glass curtain walls, and many large domed buildings have been built as public facilities. In summer, the ultraviolet radiation is strong, causing light pollution, and winter is not cold. You have to open a high-power air conditioner to adjust the temperature throughout the year. In winter, it must be warmer than other buildings. According to incomplete statistics, the area of ​​the existing glass curtain wall (non-energy-saving glass) in the country has exceeded 9 million square meters, and it shows a continuous development trend. The glass curtain wall not only brings the so-called beauty, but also brings exponential growth of energy consumption.
Almost every area of ​​our lives is under pressure to reduce the carbon dioxide emissions caused by energy consumption in order to reduce the damage to the environment. Although the railway industry produces less carbon dioxide emissions than other modes of transportation, it is still necessary to further improve energy efficiency.
The latest research from the UK Department of Environment, Food and Rural Affairs shows that rail transport produces only 61g of CO2 per passenger per kilometer, while cars produce up to 140g of CO2 per passenger per kilometer (the car ’s exhaust emissions are based on an average share of 1.5 ).
For railway operators that actually consume energy, one method is to monitor and set targets to reduce energy consumption, costs, and emissions. If drivers are encouraged to avoid energy waste-that is, to adopt "energy-saving driving", it is particularly important to provide detailed driving information for each journey. In the future, it is possible for drivers to drive at the recommended optimal energy-saving speed, which, combined with a new concept of how to drive more economically, can save energy by more than 10-20%.
For fossil fueled engines, fuel consumption measurement is relatively simple, but in an accurate traction energy measurement system for electrified lines, the cost of distribution and the carbon impact of each journey are necessary for operators. If this goal is to be achieved, then each train needs an effective on-board energy consumption measurement method.
The system must record energy consumption and location so that operators can grasp the causes of higher energy consumption and provide a list of the costs of different grid operators. An interim standard EN50463 has been developed, which meets all possible requirements related to train energy measurement.
If the standards are properly formulated, they will be successfully implemented. The formulation of prEN50463 took into account the opinions of many different stakeholders, from railway operators to equipment manufacturers, in addition to TSI basic requirements specifications and UIC recommendations.
The standard is divided into 5 parts:
——PrEN 50463-1: scope, general architecture, file structure, standard references, general requirements
——PrEN 50463-2: voltage / current sensor measurement chain from OCL to metering unit
——PrEN 50463-3: All input / output data processing and memory management unit
——PrEN 50463-4: vehicle-mounted and "train-ground" communication system
——PrEN 50463-5: the test procedure specification used when assessing the consistency and synergy of the system under test
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