MVE CONTROL is a special device for the control of small hydropower plants (SHPP). MVE CONTROL ensures generator control and delivery to the distribution power grid.
Features:
- maximizing power of the power plant by the generator control
- minimization of losses
- comprehensive control of small hydropower plants and other components
- energy delivery to the grid even at minimal water flow (low frequency of the generator)
- low harmonic distortion of the generated current: THDi < 3%
- reactive power control, adjustable power factor (from 0.95 capacitive to 0.95 inductive), cos ф = -1 possible
- aic flying start of the generator
- checking the grid voltage: the presence of all phases, symmetry, undervoltage, overvoltage
- checking the generator: temperature, overcurrent, short circuit, the minimum and maximum frequency
- indication of kW, kWh
- rich communication possibilities (CAN, Profibus DP, MODBUS)
- universal and fully configurable system of inputs and outputs
- comfortable setting and monitoring of the devices via graphical control panel
Monitoring:
MVE CONTROL 400 continuously monitors and controls:
- symmetry and the presence of all three phases of the supply of the grid (in case of problem, it disconnects the MAIN AC CONTACTOR
- water level
- instantaneous power in kW
- summary of the energy delivered to the grid in kWh (for information)
- regenerative or motoric operation of the water wheel/turbine (motoric mode immediately switches off the operation - except start-up of the power plant) - this feature can be turned off
- temperature of the generator
- temperature of the device
Technical data
| Input part |
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| Grid voltage Vs: | 3 x 400 V AC ± 10% |
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| Input voltage frequency: | 50 Hz ± 5% |
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| Current THD: | < 3% (at voltage THD < 1,5%) |
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| Nominal power: | 4 - 500 kVA |
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| Rate of the shutdown by the loss of voltage in a supply phase: | < 10 ms |
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| Generator part |
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| Supply voltage of the generator: | 3 x 0 to Vs |
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| Frequency of the generator: | 0 - 60 Hz (according to the output of power maximization block) |
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| Nominal power of the generator: | 4 - 500 kW |
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Degree of protection:
| Protection of electronic part of the enclosure: | IP 55 |
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| Protection of the ventilated part of the enclosure: | IP 21 |
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Equipment of the enclosure:
- Power electronics
- Input contactor
- Input fuses with the fuse switch disconnector
- Inpput overvoltage protection
- Transformer for the control voltage
- LED pilot lights (napr. RUN, FAULT, VOLTAGE PRESENT, VALVE OPEN)
- Auxiliary relays
- Time relays
- Circuit breakers
- Tempering of the enclosure
- Ventilation of enclosure - the power section
- Contactor of valve magnet
- Service socket 230 V
- Input and output terminals
- Grommets
- Rotary switch START
