Pqload

Parametric loads provide a load-like object that allows the load to vary based on other conditions in the system. This may be things such as weather conditions or even time-of-day scheduling. Further details on parametric loads can be found in the Industrial and agricultural loads page. A typical parametric load would be called as

object pqload {
    name pqload1;
    phases ABC;
    Zp 200 ohm;
    Zq_T 250 F;
    Im 300;
    Ia 45;
    Pp 100;
    Pp_T 3;
    Pq_T 1;
    nominal_voltage 2400;
    }

Pqload Parameters

Properties

pqload objects are derived from load objects, so any parameters of the load object are available as well.

The I/O column indicates whether a property is user-settable input (I), simulation-computed output (O), or both (IO).

Table 1: qload table 1

Property Name	Type	Unit	I/O	Description
weather	object	N/A	I	Link to the climate object used in for parameters of the load.
T_nominal	double	degF	I	Nominal temperature Note: Unused at this time
Zp_T	double	ohm/degF	I	Coefficient of how resistive impedance varies for temperature.
Zp_H	double	ohm/%	I	Coefficient for how resistive impedance varies with humidity.
Zp_S	double	ohm*h/Btu	I	Coefficient for how resistive impedance varies with solar gains.
Zp_W	double	ohm/mph	I	Coefficient for how resistive impedance varies with wind speed.
Zp_R	double	ohm*h/in	I	Coefficient for how resistive impedance varies with rain fall.
Zp	double	ohm	I	Baseline, unvarying resistive impedance value.
Zq_T	double	F/degF	I	Coefficient of how reactive impedance varies for temperature.
Zq_H	double	F/%	I	Coefficient for how reactive impedance varies with humidity.
Zq_S	double	F*h/Btu	I	Coefficient for how reactive impedance varies with solar gains.
Zq_W	double	F/mph	I	Coefficient for how reactive impedance varies with wind speed.
Zq_R	double	F*h/in	I	Coefficient for how reactive impedance varies with rain fall.
Zq	double	F	I	Baseline, unvarying reactive impedance value.
Im_T	double	A/degF	I	Coefficient of how current magnitude varies for temperature.
Im_H	double	A/%	I	Coefficient for how current magnitude varies with humidity.
Im_S	double	A*h/Btu	I	Coefficient for how current magnitude varies with solar gains.
Im_W	double	A/mph	I	Coefficient for how current magnitude varies with wind speed.
Im_R	double	A*h/in	I	Coefficient for how current magnitude varies with rain fall.
Im	double	A	I	Baseline, unvarying current magnitude value.
Ia_T	double	deg/degF	I	Coefficient of how current angle varies for temperature.
Ia_H	double	deg/%	I	Coefficient for how current angle varies with humidity.
Ia_S	double	deg*h/Btu	I	Coefficient for how current angle varies with solar gains.
Ia_W	double	deg/mph	I	Coefficient for how current angle varies with wind speed.
Ia_R	double	deg*h/in	I	Coefficient for how current angle varies with rain fall.
Ia	double	deg	I	Baseline, unvarying current angle value.
Pp_T	double	W/degF	I	Coefficient of how resistive power varies for temperature.
Pp_H	double	W/%	I	Coefficient for how resistive power varies with humidity.
Pp_S	double	W*h/Btu	I	Coefficient for how resistive power varies with solar gains.
Pp_W	double	W/mph	I	Coefficient for how resistive power varies with wind speed.
Pp_R	double	W*h/in	I	Coefficient for how resistive power varies with rain fall.
Pp	double	W	I	Baseline, unvarying resistive power value.
Pq_T	double	VAr/degF	I	Coefficient of how reactive power varies for temperature.
Pq_H	double	VAr/%	I	Coefficient for how reactive power varies with humidity.
Pq_S	double	VAr*h/Btu	I	Coefficient for how reactive power varies with solar gains.
Pq_W	double	VAr/mph	I	Coefficient for how reactive power varies with wind speed.
Pq_R	double	VAr*h/in	I	Coefficient for how reactive power varies with rain fall.
Pq	double	VAr	I	Baseline, unvarying reactive power value.
input_temp	double	degF	O	Observed temperature. (read-only)
input_humid	double	%	O	Observed humidity. (read-only)
input_solar	double	Btu/h	O	Observed solar gains. (read-only)
input_wind	double	mph	O	Observed wind speed. (read-only)
input_rain	double	in/h	O	Observed rainfall. (read-only)
output_imped_p	double	Ohm	O	Observed load resistive impedance value. (read-only)
output_imped_q	double	Ohm	O	Observed load reactive impedance value. (read-only)
output_current_m	double	A	O	Observed load current magnitude value. (read-only)
output_current_a	double	deg	O	Observed load current angular value. (read-only)
output_power_p	double	W	O	Observed load resistive power value. (read-only)
output_power_q	double	VAr	O	Observed load reactive power value. (read-only)
output_impedance	complex	ohm	O	Observed load combined impedance value. (read-only)
output_current	complex	A	O	Observed load combined current value. (read-only)
output_power	complex	VA	O	Observed load combined power value. (read-only)

PQ Load State of Development

PQ Load is considered an experimental model and has not been validated at this time.