The voltage on bus bars of the main switchboard of the car carrier electrical power system at sea trials during a bow thruster start-up - Open Research Data - MOST Wiedzy

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The voltage on bus bars of the main switchboard of the car carrier electrical power system at sea trials during a bow thruster start-up

Opis

The dataset is a part of the research results on the quality of supply voltage on bus bars of the main switchboard of the ship's electrical power system in different states of ship exploitation. In ships' electrical power systems, disturbances occurring in voltage waveforms on bus bars of the main switchboard are connected mainly with the processes of switching large loads on and off, such as switching on the bow thruster propulsion. The attached dataset contains the measurement results obtained onboard the car carrier during sea trials when a bow thruster start-up.

The bow thruster propulsion motor with a power of 1300 kW consumed 3 kA during the start-up (nominal current 2.2 kA). The nominal power of a single generating set was 1400 kW, with a nominal current of 2.25 kA. For the studied case, the start-up was carried out in the parallel operation of two generating sets. Right before the start-up, the load of each generator set was 840 kW (60% of the nominal load of the ship's power plant at the time of commissioning). Immediately after the start-up, an emergency shutdown of less important receivers by the Mayer system was observed. At the same time, an additional generating set was launched because of overloading the ship's power plant. Despite this, there was no emergency shutdown, so-called black-out, of working generating sets.

The voltage waveforms on bus bars of the main switchboard were recorder with the digital measuring system, which allows the simultaneous measurement of three phase-to-phase or two-phase voltages. The initial conditioning of the input signals is carried out by optoisolation amplifiers and a low-pass filter module (antialiasing). The formation of the output digital signal from the analog signal takes place in the a/d converter with a resolution of 16 bits and a sampling rate of up to 20 kS/s. The block diagram of the digital measuring system is shown in Figure.

The files contain voltage waveforms of the output of a/d converters in [V], in three phases for the 440 V network. The attenuation and offset of the measuring path for the 440 V network are equal to 134.0123 [V / V] and -0.0175 V, respectively. The sampling frequency is inserted in the first row of the attached files.

The files are described as follows: car_carrier_thruster_440_the number of the set.

Ilustracja publikacji

The block diagram of the digital measuring system

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car_carrier_thruster.rar
478.2 MB, S3 ETag 9acaed551ee5369d8e05c12065d709de-1, pobrań: 77
Hash pliku liczony jest ze wzoru
hexmd5(md5(part1)+md5(part2)+...)-{parts_count} gdzie pojedyncza część pliku jest wielkości 512 MB

Przykładowy skrypt do wyliczenia:
https://github.com/antespi/s3md5

Informacje szczegółowe o pliku

Licencja:
Creative Commons: by 4.0 otwiera się w nowej karcie
CC BY
Uznanie autorstwa
Dane surowe:
Dane zawarte w datasecie nie zostały w żaden sposób przetworzone.

Informacje szczegółowe

Rok publikacji:
2020
Data zatwierdzenia:
2020-12-17
Data wytworzenia:
2000
Język danych badawczych:
angielski
Dyscypliny:
  • Automatyka, elektronika i elektrotechnika (Dziedzina nauk inżynieryjno-technicznych)
DOI:
Identyfikator DOI 10.34808/25c4-cc93 otwiera się w nowej karcie
Weryfikacja:
Politechnika Gdańska

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