Controller LCFB1

Load controller for the turbine-regulator model.

blockType: SubSystem

Path in the library:

/Physical Modeling/Electrical/Control/Turbine-Governors/Controller LCFB1

Description

The Controller LCFB1 unit is an LCFB1 turbine load controller. You can use this load controller with any model of turbine controller.

Ports

Input

# ω — load speed
scalar

Details

The load rate given as a scalar.

Data types	`Single` \| `Float64`.
Complex numbers support	No

# Pmwset — power value
scalar

Details

A power value specified as a scalar.

Data types	`Single` \| `Float64`.
Complex numbers support	No

# Pe — electrical power consumption
scalar

Details

The electrical power consumption specified as a scalar.

Data types	`Single` \| `Float64`.
Complex numbers support	No

Output

# Pref — bias voltage
scalar

Details

The displacement applied to the turbine-regulator load speed reference is returned as a scalar.

Data types	`Single` \| `Float64`.
Complex numbers support	No

Parameters

Main

# Speed reference, pu — speed reference signal

Details

Speed reference, o.u.

Default value	`1.0`
Program usage name	`speed_ref_pu`
Evaluatable	Yes

# Controller deadband, pu — controller dead band

Details

Controller insensitive zone, o.e.

Default value	`0.0`
Program usage name	`dead_band`
Evaluatable	Yes

# Maximum error e_max, pu — maximum error

Details

The maximum possible error.

Default value	`0.1`
Program usage name	`error_max`
Evaluatable	Yes

# Frequency bias gain f_b, pu — frequency offset gain

Details

Frequency offset gain factor, o.u.

Default value	`0.0`
Program usage name	`frequency_bias`
Evaluatable	Yes

# Proportional gain K_p, pu — proportional gain for PI control

Details

Proportional gain for PI control, o.e.

Default value	`0.0`
Program usage name	`K_p`
Evaluatable	Yes

# Integral gain K_i, pu/s — integral gain for PI control

Details

Integral gain for PI control, o.u.

Default value	`0.1`
Program usage name	`K_i`
Evaluatable	Yes

# Power transducer time constant T_pelec, s — time constant of the power converter

Details

Time constant of the power converter, s.

Default value	`3.5`
Program usage name	`T_transducer`
Evaluatable	Yes

# Maximum output I_rmax, pu — output upper limit

Details

Upper limit of output signal saturation, o.u.

Default value	`0.035`
Program usage name	`PI_controller_upper_saturation_limit`
Evaluatable	Yes

Initial Values

# Initial power reference P_ref0, pu — initial power value

Details

Target power at the initial moment, o.e.

Default value	`0.45`
Program usage name	`P_ref_start`
Evaluatable	Yes

Literature

"Task Force on Turbine-Governor Modeling, Dynamic models for turbine-governors in power system studies", IEEE Power Energy Society, January 2013.