modelPhaseShiftingTransformer
Information
The following documentation is adapted from [Milano2010], chapter 11.2.3:
Phase Shifting Transformers (PhSTs) are able to vary the phase shifting angle φ to control the active power flow. These devices are used in meshed networks for reducing the congestion on some transmission lines and/or properly redis- tributing active power flows in transmission lines. A fairly complete review of PhST technologies can be found in [Verboomen2005].
[...]
The measured
pmesof the real power flowpkis compared with the desired power flowprefand a PI controller is used for varying the phase angle φ.[...]
The phase angle φ is subjected to an windup limiter. [...] It is relevant to note that connecting two areas of a network only by means of PhSTs can lead to unsolvable cases, as PhSTs impose the total real power transfer between the two areas.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Power flow | |||
| Types.ApparentPower | S_b | SysData.S_b | System base power |
| Types.Voltage | V_b | 40e3 | Sending end bus voltage |
| Transformer parameters | |||
| Types.ApparentPower | Sn | SysData.S_b | Power rating |
| Types.Voltage | Vn | 40e3 | Voltage rating |
| Types.PerUnit | rT | 0.01 | Resistance (transformer base) |
| Types.PerUnit | xT | 0.1 | Reactance (transformer base) |
| Real | m | 1.0 | Optional fixed tap ratio |
| Phase controller | |||
| Types.PerUnit | pref | 0.01 | Desired power flow |
| Real | Kp | 0.5 | Proportional gain |
| Real | Ki | 0.1 | Integral gain |
| Types.Time | Tm | 0.001 | Measurement time constant |
| Types.Angle | alpha_max | C.pi/2 | Maximum phase angle |
| Types.Angle | alpha_min | -C.pi/2 | Minimum phase angle |
| Initialization | |||
| Types.PerUnit | pmes0 | 0.01 | Initial measured power flow |
| Types.Angle | alpha0 | 0 | Initial phase shifting angle |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Interfaces.PwPin | n | ||
| Interfaces.PwPin | p |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| OpenIPSL.Electrical.SystemBase | SysData | ||
| Types.PerUnit | pk | Actual primary power flow | |
| Types.Angle | anglevk | Angle at primary | |
| Types.Angle | anglevm | Angle at secondary | |
| Types.PerUnit | vk | Voltage at primary | |
| Types.PerUnit | vm | Voltage at secondary | |
| TwoWindingTransformer | twoWindingTransformer | ||
| PhaseShifter | phaseShifter |
Contents
| Name | Description |
|---|---|
| PhaseShifter | Controller for shifting the phase (internal model) |
Revisions
Reference |
PSAT Manual 2.1.8 |
Last update |
2020-10-23 |
Author |
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Contact |