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The power supply units of the Heinzinger ERS and PTNer series are equipped with an energy recovery system (regenerative system - mains feedback), which allows for significant savings in operating costs at test benches. These units comply with the highest demands in terms of precision and stability. Furthermore, the integrated internal resistance controllers allow the units to be used in battery replacement applications. Energy is recovered through the "Heinzinger Energy Recovery" system, for ERS series bidirectional. In power supply mode the unit works as a high power DC power supply. When operated in energy recovery mode, the power supply converts DC power provided by the "consumer" into AC power and feeds this back into the power grid.
ERS-Series
Bidirectional High Performance Power Supplies with Active Energy Recovery
The new bidirectional Heinzinger ERS test bench energy system is a mains recovery unit series which is convenient for many applications.
Typical applications are:
• Vehicle energy systems in the hybrid sector
• Testing of electric drive machines
• Battery simulation (emulation of energy storage such as SuperCaps, NiMH or Li-ion batteries)
• Battery testing
• Testing of converters
• Testing of electrical components such as cables, or switch ing/distribution devices, etc.
• Use as general energy sink with energy recoveryRecovery
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Highly dynamic DC source and load
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Operation using touch screen or interface
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Galvanic isolation using medium-frequency transformers
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Sense function for stabilisation of voltage drops in the line
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Operation as source/sink or just source (1st quadrant) or load (4th quadrant)
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Continuous transition between source and load operation
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Regulated source and load operation
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Adjustable internal resistance regulation
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Output for status signals such as enable, disturbance output status
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Output regulation configurable
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Water cooling for approx. 18 °C supply temperature
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Output floating and short-circuit-proof
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Power multiplication possible using parallel operation of several units
ERS datasheet (PDF)
PTNer-Series
High Performance Power Supplies with Active Energy Recovery
- Robust power unit based on the PTN3p series with "Heinzinger Energy Recovery"
- Integrated energy recovery that converts energy returning from the consumer back into network voltage and is fed back into the supply network
- Very good dynamic behaviour
- Minimal threshold between power units and energy recovery mode with intelligent detection of the operating mode of the consumer
- Comprehensive digital and analogue control methods
- Power unit function with integrated option "Battery characteristic curves" for recreating the behaviour of a battery
- Suited for non-stop operation, extremely reliable
- Modular design
- Galvanic separation of the consumer in energy recovery mode
- Power unit available in water-cooled version
PTNer-datasheet (PDF) Power Supply Mode:
Energy Recovery Mode:
