Event to Highlight Test Rig for Hybrid Vehicles

Control Techniques/Emerson Industrial Automation is to showcase intelligent drive and motor technologies, including the DC Source test rig for hybrid and electric vehicles, at Hannover Messe 2011. A second stand at the event - taking place on 4-8 April - will highlight the SPV range of transformer-less central grid-tie inverters for photovoltaic installations from 145kWp to 1.59MWp.

SPV is constructed using 145kWp, 159kWp inverter modules, parallel-connected to produce any desired power ratings up to 1.59MWp. The inverter designs are based on a mature industrial design and use a control methodology that enables switching of the inverters between standby and active states to match the instantaneous power available from the solar array, enhancing both efficiency and plant availability. SPV inverters achieve Euro and CEC weighted efficiencies of 97.6 per cent as well as having reliable modules that are tolerant to faults.

In addition, Control Techniques offers a complete solution for testing all types of hybrid and electric vehicles. The DC Source rig comprises an inverter that simulates the characteristics of the batteries and is used to power the electric traction system being tested. A regenerative drive is then used to supply the drive system and a common DC bus to re-circulate the energy from the motors back to the supply, minimising energy consumption and the supply.

The system uses the Unidrive SPM modular range of inverters to produce the DC power to drive the rig and to regenerate during braking - a straightforward solution using mass-produced readily available components with full support. The DC source is easily integrated into any standard control engineering system, available in voltages up to 700VDC, currents up to 2,000ADC and powers up to 1.4MW. Other products that will be highlighted on the stand will include Unidrive SP; Digitax ST; Commander SK; Unimotor FM; and Unimotor HD.

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