PERFORMANCES High accuracy High stability Fast transients High inrush current facilities Very low noise Very low output impedance Switching from Q1 to Q4 without transition Ripple & noise superposition Dips and short interruptions RS232 APPLICATIONS Aircraft networks HVDC Tests in accordance with standards ABD100.1.8 / MIL-STD-704 Automotive Battery charge cycle Vehicle electric ripple Driving PWM Engine starting test, Spike Alternator test DESCRIPTION PCU-20K-ABOS is a DC programmable power supply designed to offer very high performance with our own linear technology for drastic and complex tests regardless the type of load. This DC power supply is 2 quadrants. Its high electrical performances allow to test or simulate all kinds of generators or loads with high dynamics, very low noise over a wide voltage range. Moreover, hardware, software and firmware can be easily customized to satisfy your specific requests for embedded, R&D or production environment. It can be remote easily using protocol TCP/IP on Ethernet link or SCPI on serial RS232 link. It can so be put in an automatic test system using, for example, our software package OPS. COMMERCIAL REFERENCES PCU-20K-ABOS/600V-132A/3G Option PCU-20K-SR Option PCU-20K-ISO OUTPUT Option PCU-20K-MAINS Option PCU-20K-BNC Option PCU-20K-ACQ customized voltage ranges voltage and current read-backs specific mains power supply 10V analog BNC input power analyzer Document ref. DC Power supply 20kW 3 ranges V1 - Page 1 / 8
OUTPUTS DC POWER SUPPLY FEATURES Power Rated power 20 000 W Output DC Ranges 150VDC - 300 VDC 600 VDC Voltage and current SOURCE Range 150 V Range 300 V Range 600 VC Voltage 0-150 VDC 0-300 VDC 0-600 VDC Permanent current In 0-132 ADC 0-66 ADC 0-33 ADC 200 ADC for a 150 ADC for a 100 ADC for a imum current (5 mn) voltage between voltage between voltage between 120 and 150 250 and 300 500 and 600 VDC VDC VDC imum peak current (1 s) 400 A peak 250 A peak 125 A peak Current SINK Range 150 V Range 300 V Range 600 V Permanent current 0-32 ADC 0-16 ADC 0-8 ADC Voltage accuracy Typical 0,1% of range + 0,1% of programmed value Resolution 12 bits Current accuracy Typical 0,1% of range + 0,1% of programmed value Resolution 12 bits Voltage regulation for a mains variation of +6% / -10% < 0,1% of rated voltage Voltage regulation for a current variation from 0 to 100% < 0,1% of rated voltage Noise RMS 0,02% of rated voltage peak to peak 0,3% of rated voltage Variation with a square signal pilot Rise time 10% / 90% < 20 µs Fall time 10% / 90% < 20 µs Transfer time < 20 µs Transition from Q1 to Q4 < 20µs Variation according temperature Typical 50 ppm/ C 100 ppm/ C Stability after 15 minutes of operation < 0,05% of rated voltage Insulation of the outputs versus case ground Measurement at 500 VDC > 100 MΩ Accuracy of the measurements displayed on the touch screen Voltage measurement 0,3% of range + 0,3% of measure Current measurement 0,3% of range + 0,3% of measure Document ref. DC Power supply 20kW 3 ranges V1 - Page 2 / 8
MECHANICAL AND ENVIRONMENTAL MAINS DC POWER SUPPLY FEATURES Mains network Number of phases 3 Phases + Earth without Neutral Voltage 400 VRMS -10% +6% Frequency 47-63 Hz Input current for full output power (overcurrent during 5 mn) 125 ARMS per phase Protection Magnetic and thermal breaker Inrush current Limited at 2 times max current Dielectric strength between mains input and output connected to case ground Measured at 1500 VRMS / 50Hz Current < 10 ma Paints Frame Aluminum painted RAL7021 Panels Aluminum painted RAL7035 Dimensions and weight of each bench Width 800 mm Height 2000 mm (38U) Depth 800 mm Weight 500 kg Temperature and humidity Storage temperature -10 C à +85 C Operating temperature +0 C à +50 C Humidity 10% - 90% non-condensing Noise (fans working at full speed) Measured at 1 m < 70 dba Marking Marking CE Protection level IP30 Protections Against overload Voltage limitation (1) Against short circuit on output Automatic output switch off (2) Against overheat Automatic output switch off (3) 1) In case of temporary overload the voltage decreases to limit the current. 2) The output is switched off and will have to be reactivated by the touch screen or an external command. 3) A temperature sensor is installed on each power element. It switches off the load in case of overheat. The load must be re-activated by a local control or an external control. Document ref. DC Power supply 20kW 3 ranges V1 - Page 3 / 8
OPTIONS Option PCU-20k-SR : customized output ranges Output voltage ranges can be customized - Please consult us. Option PCU-20k-ISO OUTPUT : add read-backs of voltage and current Read-backs of voltage and current are isolated from output. With an amplitude ± 10 V peak, they are real time images of voltage and current on the output of the source. AC SOURCE OUTPUT ISO OUTPUT HIGH LOW Voltage Image Current Image Option PCU-20k-MAINS : customized mains input Mains input power can be adapted to your network - Please consult us. Option PCU-20k-BNC : 10V analog BNC input With this option, output voltage is defined by analog voltage input. When this analog input voltage is 10V, output value is full scale of the selected range. Option PCU-20k-ACQ : power analyzer (see details on pages 5 and 6 of this document) Document ref. DC Power supply 20kW 3 ranges V1 - Page 4 / 8
ANALOG INPUTS DC POWER SUPPLY POWER ANALYZER OPTION FACILITES The POWER ANALYZER included allows acquiring voltage and current signals simultaneously at a maximum sampling rate of 100 kech/s, performing calculations and returning the results of the calculations or samples to a host system. Each channel has its own memory and its own 16-bit converter, allowing sampling on both channels simultaneously. It offers synchronous analytics with the process and enables a significant reduction in the cycle time while improving the accuracy of the measurements. Three modes of acquisition are available : Permanent mode, Synchronous mode, Acquisition-compression mode. Analog inputs Number of channels 2 Input type Direct Acquisitions Input voltage ±10,0 V peak Common mode max. voltage 15 V Resolution 16 bits Accuracy 0,05% of range + 0,05% of measurement Sampling Frequency from 20 Ech/s to 100 kech/s per channel Memory per channel 256 kwords of 16 bits (512 kbyte) Analysis Wattmeter See note (1) Chronometer Resolution 10 or 100 µs Accuracy 10 or 100 µs + 0.01% (1) Each channel can be attached to an electrical signal, currently voltage and current. All of the following operations can be performed on each channel: Mean value RMS value during a time of 5 ms to 2 s Variable frequency filter Minimum / maximum imum RMS value Measurement time: time during which the signal is greater (in absolute value) to a specified value More details are described in technical sheet FT-Carte ACQ-EN-V1. Document ref. DC Power supply 20kW 3 ranges V1 - Page 5 / 8
3 ACQUISITION MODES Permanent mode: signals are continuously analyzed and measurement records are updated periodically. They are accessible by the host system and provide information on the current value of the channel. The time base for the calculation (FFT) is fixed or issued out of the analyzed signal. In the latter case, a high-speed PLL (over one period) calculates the sampling frequency to acquire 1024 points per period. After acquisition, the board makes a FFT without windowing (or rectangular) guaranteeing a high accuracy of measurement with only one period. Synchronous mode: measurements are engaged / disengaged on order of the host system with an accuracy of 100 µs. Records are updated only during this time period, so that the measured parameters are correlated with stimulus driven also by the host system. As for the previous mode, the time base is fixed or dynamic. Acquisition-compression mode: this mode is possible only on the 2-way cards. Sampling is at the maximum frequency, but only the points that differ more from x % (x being programmable) of the previous point are preserved and dated. It is thus possible to have a maximum of details during a sudden change and a minimum of memory used if the signal is "flat". This mode is particularly suitable for the measurement on a DC bus (batteries for example). CONTROL SOFTWARE Puissance+ OPS3 software allows configuring for each card measurements to be carried out (for example card installed in an AC load system). By activating the continuous repatriation of measurements, this "Power meter" screen is refreshed periodically. It displays the instantaneous values of measures. The rank of the harmonic can be also selected. This Acquisition screen configures the duration of a sample and the duration of the acquisition. It allows also saving the acquisition and launching software visualization OPS1. Document ref. DC Power supply 20kW 3 ranges V1 - Page 6 / 8
2 QUADRANTS OPERATION PS-ABOS power supplies are using voltage regulation with current limitation. In «Q1» area, PS-ABOS is working as a «GENERATOR or SOURCE»: instantaneous power is positive. In «Q4» area, PS-ABOS is working as an «ABSORBER or SINK»: instantaneous power is negative. Current Q1 (U>0 and I>0) Q4 (U>0 and I<0) Voltage PERMANENT OPERATION These diagrams explain relation between current and voltage. Total power in generation and absorption are limited by transistors capabilities. X-coordinates explain voltage, Y-coordinates explain current. Permanent use is allowed inside these areas. In case of working outside, overcurrent fault or thermal fault may occur. 150V / 132A range 300V / 66A range 600V / 30A range Document ref. DC Power supply 20kW 3 ranges V1 - Page 7 / 8
STANDARD CONTROL Local control: The control with graphics and touch screen device disposed in front panel gives access to all control functions and the display of measurements. Remote control: The control device includes an Ethernet TCP/IP interface and a RS232 interface for drive using the supervision PC. OPS SOFTWARE (Example of screen) To easily drive the DC power supplies. OPS1 software allows both to generate specific waveforms and to display waveforms uploaded from acquisition board (when power analyzer option has been purchased). UDC02 library proposes a lot of predefined waveforms. They can be organized to create a complex waveform (see below) for automotive or aeronautic applications. OPS3 software communicates with PS-ABOS using Ethernet link or serial link. OPS3 can send basic commands (ON / OFF, voltage, max current) and read and display basic measurements (status, voltage, current). OPS3 is used to send waveforms to PS-ABOS. Specification subject to change without notice. Document ref. DC Power supply 20kW 3 ranges V1 - Page 8 / 8