Meter Split

This section describes the three-phase meter split component from the Microgrid library.

The Meter Split is a component located in the Microgrid Library. The component's icon and properties window are shown in Table 1. The Meter Split is a masked bus split that is compatible with the signal processing outputs of the Three-phase Meter. Its inputs are vectors of fixed size, while its outputs are scalar values. Its size and number of output ports are changed dynamically based on the selected measurements.

Table 1. Meter Split in the Schematic Editor core library
component component dialog window component parameters

Meter Split
  • Property tabs:
    • Phase Voltage
    • Line Voltage
    • Current
    • Frequency
    • Power
    • Extra Meas.
Figure 1. Meter Split - view under the mask.

Tab: "Phase Voltage"

In this properties tab, the phase and neutral instantaneous and rms voltage measurements can be enabled.

Figure 2. Phase Voltage properties tab
Parameter Code name Description
Phase voltage measurement (VAn) van Checkbox that enables phase A's instantaneous voltage measurement output
Phase voltage measurement (VBn) VBn Checkbox that enables phase B's instantaneous voltage measurement output
Phase voltage measurement (VCn) VCn Checkbox that enables phase C's instantaneous voltage measurement output
Phase RMS voltage measurement (VAn_RMS) van_rms Checkbox that enables phase A's RMS voltage measurement output
Phase RMS voltage measurement (VBn_RMS) vbn_rms Checkbox that enables phase B's RMS voltage measurement output
Phase RMS voltage measurement (VCn_RMS) vcn_rms Checkbox that enables phase C's RMS voltage measurement output
Average phase voltage RMS measurement (VLn_RMS) vln_rms Checkbox that enables the average phase voltage RMS measurement output
Estimated neutral voltage measurement (VN) vn Checkbox that enables the estimated neutral voltage instantaneous measurement output
Estimated neutral voltage RMS measurement (VN_RMS) vn_rms Checkbox that enables the estimated neutral voltage RMS measurement output

Tab: "Line Voltage"

In this properties tab, the line instantaneous and rms voltage measurements can be enabled.

Figure 3. Line Voltage properties tab
Parameter Code name Description
Line voltage measurement (VAB) vab Checkbox that enables line AB's instantaneous voltage measurement output
Line voltage measurement (VBC) vbc Checkbox that enables line BC's instantaneous voltage measurement output
Line voltage measurement (VCA) vca Checkbox that enables line CA's instantaneous voltage measurement output
Line RMS voltage measurement (VAB_RMS) vab_rms Checkbox that enables line AB's RMS voltage measurement output
Line RMS voltage measurement (VBC_RMS) vbc_rms Checkbox that enables line BC's RMS voltage measurement output
Line RMS voltage measurement(VCA_RMS) vca_rms Checkbox that enables line CA's RMS voltage measurement output
Average line voltage RMS measurement (VLL_RMS) vll_rms Checkbox that enables the average line voltage RMS measurement output

Tab: "Current"

In this properties tab, the phase current measurements can be enabled.

Figure 4. Current tab properties tab
Parameter Code name Description
Current measurement (IA) ia Checkbox that enables phase A's instantaneous current measurement output
Current measurement (IB) ib Checkbox that enables phase B's instantaneous current measurement output
Current measurement (IC) ic Checkbox that enables phase C's instantaneous current measurement output
Current RMS measurement (IA_RMS) ia_rms Checkbox that enables phase A's RMS current measurement output
Current RMS measurement (IB_RMS) ib_rms Checkbox that enables phase B's RMS current measurement output
Current RMS measurement (IC_RMS) ic_rms Checkbox that enables phase C's RMS current measurement output
Averege current RMS measurement (I_RMS) i_rms Checkbox that enables the average phase current RMS measurement output
Estimated neutral current measurement (IN) ineutral Checkbox that enables the estimated neutral current instantaneous measurement output
Estimated neutral current RMS measurement (IN_RMS) in_rms Checkbox that enables the estimated neutral current RMS measurement output

Tab: "Frequency"

In this properties tab, the frequency measurement can be enabled.

Figure 5. Frequency properties tab
Parameter Code name Description
Frequency measurement (Freq) freq Checkbox that enables the frequency measurement output

Tab: "Power"

In this properties tab, the power measurements can be enabled.

Figure 6. Power properties tab
Parameter Code name Description
Active power measurement (POWER_P) power_p Checkbox that enables the three-phase active power measurement output
Reactive power measurement (POWER_Q) power_q Checkbox that enables the three-phase reactive power measurement output
Apparent power measurement (POWER_S) power_s Checkbox that enables the three-phase apparent power measurement output
Power factor measurement (POWER_PF) power_pf Checkbox that enables the three-phase power factor measurement output

Tab: "Extra Meas."

In this properties tab, the extra input port can be enabled. Consequently, the per-phase power measurement checkboxes are shown and can be enabled.

Figure 7. Extra Meas. properties tab
Parameter Code name Description
Enable extra input port enable_extra_in Combo box that enables choosing between Yes and No options. The default option is No.

When the option selected is Yes the per-phase power measurement checkboxes are made visible.
Active power measurement phase A (POWER_PA) power_pa Checkbox that enables phase A's active power measurement output
Active power measurement phase B (POWER_PB) power_pb Checkbox that enables phase B's active power measurement output
Active power measurement phase C (POWER_PC) power_pc Checkbox that enables phase C's active power measurement output
Reactive power measurement phase A (POWER_QA) power_qa Checkbox that enables phase A's reactive power measurement output
Reactive power measurement phase B (POWER_QB) power_qb Checkbox that enables phase B's reactive power measurement output
Reactive power measurement phase C (POWER_QC) power_qc Checkbox that enables phase C's reactive power measurement output
Apparent power measurement phase A (POWER_SA) power_sa Checkbox that enables phase A's apparent power measurement output
Apparent power measurement phase B (POWER_SB) power_sb Checkbox that enables phase B's apparent power measurement output
Apparent power measurement phase C (POWER_SC) power_sc Checkbox that enables phase C's apparent power measurement output
Power factor measurement phase A (POWER_PFA) power_pfa Checkbox that enables phase A's power factor measurement output
Power factor measurement phase B (POWER_PFB) power_pfb Checkbox that enables phase B's power factor measurement output
Power factor measurement phase C (POWER_PFC) power_pfc Checkbox that enables phase C's power factor measurement output

Example

Overall behavior can be better understood with the use of the given meter split example:

Model name: meter_and_const_z_load.tse

SCADA interface: SCADA_Panel.cus

Path: /examples/models/microgrid/meter_and_constant_z_load/