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Will enter the age of wireless power transmission

Information Source:Henan Huadong Cable Co., Ltd  Release date:2014-04-01

Recently, Korea Advanced Institute of science and Technology (KAIST) and Korea railroad Research Institute (KRRI) combined with an improved power wireless transmission technology, the wireless power transmission to provide stable 60kHz, 180kW railway mass transport system.

According to the introduction, this technique is called wireless electric locomotive system (OLEV). Loading OLEV locomotive without entering a special charging station or battery replacement, whether in the road or parking process can whenever and wherever possible to receive the wireless power, therefore, the cell size is only 1/5 of traditional electric locomotive. At the same time, OLEV accords with the international standard of electromagnetic field.

In 2011, loading the OLEV prototype, a bus and a rail transport cars by KAIST independently developed, then the system can be 85% of the efficiency of two car transport 20kHz, 10kW power.
Improvement and the two institutions is that OLEV can be used to transport larger systems. Professor and director of the Dong-Ho Cho KAIST wireless power transmission technology and development center, introduces to the reporter: "we will improve power transmission density of the system increased by 3 times; reduced size and weight, reduce the power receiving module; cut the major components of the OLEV, such as supply and receiving system cost, make it more easy to commercialization."

It is reported, KAIST and KRRI will also continue to this technology was improved, and in May this year to carry out the rail transport cars test, carried out in July and the city road test was carried out in September in high speed test.

Dong-Ho Cho told reporters, if the technology can be widely used, some of the traditional railway facilities, such as cable, electrode, pantograph will be cancelled, thus greatly reduce the cost of railway construction. At the same time, because without the equipment, railway required space will also become smaller, which will reduce the cost of tunnel construction. In addition, the technology also will address the noise, High-speed Rail running pantograph connection problems.

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