Inverters

Creating a new entry

Create a data set by defining the various properties of the inverter on the subpages.

Basic data

  1. Choose company
    With the button all companies can be displayed and new ones created.

  2. Enter name for model

  3. (optional) Insert comment

  4. Determining whether the component is available. \ Components that are not available are hidden in the database view by default, but can be displayed again.

  5. Enter the user ID to be used. The selected user ID determines the visibility of the record.

Electrical data DC

Here you define the electrical data of the inverter.

  • Nominal DC power
    The nominal DC power is the power for which the inverter is designed on the input side for continuous operation.
  • Max. DC power
    If this power limit is exceeded, the PV power is regulated.
    • Nominal DC voltage
      The rated voltage on the input side for normal operation of the inverter.
  • Max. Input current
    Exceeding the maximum input current leads to a down regulation.
  • Max. input voltage, Max. short-circuit current
    These voltage or current limits must not be exceeded to protect the inverter. If this limit is exceeded, no simulation is possible.
  • Number of DC inputs

Inverter: Basic data and electrical data DC

In PV*SOL® these limits are also required for the configuration check, see Pages > Inverters > Configuration check.

Electrical data AC

  • Nominal AC power
    The nominal AC power is the power for which the inverter is designed on the output side for continuous operation.
  • Max. AC power
    Exceeding these power limits results in power regulation of the PV output.
    • Number of DC inputs
  • Number of phases
    • 1 phase
    • split-phase
    • 3 phase
  • Galvanic isolation of the inverter
    • With transformer
    • Without transformer

Electrical data other

  • Changing the efficiency in case of deviation of the input voltage from the nominal voltage The efficiency characteristic of the inverter is specified for the nominal voltage. If an inverter is not operated at nominal voltage, the efficiency of the inverter changes. The efficiency of an inverter decreases by the specified value per 100 V with deviation of the input voltage.
  • Feed-in from
    Minimum power that the inverter can feed into the grid.
  • Standby consumption
    If the inverter does not supply energy to the grid or to the consumer, the inverter’s own consumption must be taken into account. Besides the stand-by consumption there is also the night consumption.
  • Night consumption
    The inverter switches off at night, but still requires a minimum of energy.

Inverter: Electrical data - AC and electrical data - Other

MPP-Tracker

Here you define the MPP-Tracker of the inverter.

  • MPP adaptation efficiencies

    • Power ranges < 20% of rated power
    • Power ranges > 20% of rated power

  • Parallel operation

    • Interconnection of MPP trackers possible/not possible
    • MPP trackers cannot be interconnected
    • Either none or all MPP trackers are interconnected
  • Number of MPP trackers

  • Data per MPP tracker:

    • Max. Input current per MPP tracker
    • Max. Input power per MPP tracker
    • Min. MPP voltage , Max. MPP voltage
      The MPP tracking of the inverter takes place within this voltage range.

Inverter: MPP-Tracker

Efficiency

To define the efficiency, specify the corresponding efficiency for all load ranges.

Inverter: Efficiency

See also