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Signed-off-by: parvy <[email protected]>
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p-arvy committed Dec 12, 2023
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Expand Up @@ -94,25 +94,25 @@ The user can configure the run with the dedicated Java interface
Specifically, the user can set various parameters and thresholds used in the preprocessing and modeling of the reactive OPF.
These are specified in the file `param_algo.txt`:

| Parameter | Description | Default value | Possible value |
|----------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------|--------------------------------------------------|
| log_level_ampl | Level of display for AMPL prints | INFO | {DEBUG, INFO, WARNING, ERROR} |
| log_level_knitro | Level of display for solver prints (see [AMPL documentation](https://dev.ampl.com/ampl/options.html) | $1$ | ${0, 1, 2}$ |
| objective_choice | Choice of the objective function for the ACOPF (see [6.2](#62-alternative-current-optimal-power-flow)) | $0$ | ${0, 1, 2}$ |
| ratio_voltage_target | Ratio to calculate target V of buses when objective_choice = 1 | $0.5$ | $\[0; 1\]$ |
| coeff_alpha | Weight to favor more/less minimization of active power produced by generators or deviation between them and target values (see [6.2](#62-alternative-current-optimal-power-flow)) | $1$ | $\[0; 1\]$ |
| Pnull | Threshold of active and reactive powers considered as null | $0.01$ (MW) | $\[0; 1\]$ |
| Znull | Threshold of impedance considered as null (see [4.2](#42-zero-impedance-lines)) | $10^{-5}$ (p.u.) | $\[0; 0.1\]$ |
| epsilon_nominal_voltage | Threshold to ignore voltage levels with nominal voltage lower than it | $1$ (kV) | $\mathcal{R}^{+}$ |
| min_plausible_low_voltage_limit | Consistency bound for low voltage limit of voltage levels (see [4.1](#41-voltage-level-limits-computation)) | $0.5$ (p.u.) | $\mathcal{R}^{+}$ |
| max_plausible_high_voltage_limit | Consistency bound for high voltage limit of voltage levels (see [4.1](#41-voltage-level-limits-computation)) | $1.5$ (p.u.) | $\[$min_plausible_low_voltage_limit$; \infty \]$ |
| ignore_voltage_bounds | Threshold to replace voltage limits of voltage levels with nominal voltage lower than it, by [`min_plausible_low_voltage_limit`; `max_plausible_high_voltage_limit`] | $0$ (p.u.) | $\mathcal{R}^{+}$ |
| buses_with_reactive_slacks | Choice of which buses will have reactive slacks attached in ACOPF solving (see [6.2](#62-alternative-current-optimal-power-flow)) | NO_GENERATION | {CONFIGURED, NO_GENERATION, ALL} |
| PQmax | Threshold for maximum active and reactive power considered in correction of generator limits (see [4.5](#45-pq-units-domain)) | $9000$ (MW, Mvar) | |
| defaultPmax | Threshold for correction of high active power limit produced by generators (see [4.5](#45-pq-units-domain)) | $1000$ (MW) | |
| defaultPmin | Threshold for correction of low active power limit produced by generators (see [4.5](#45-pq-units-domain)) | $0$ (MW) | |
| defaultQmaxPmaxRatio | Ratio used to calculate threshold for corrections of high/low reactive power limits (see [4.5](#45-pq-units-domain)) | $0.3$ (Mvar/MW) | |
| minimalQPrange | Threshold to fix active (resp. reactive) power of generators with active (resp. reactive) power limits that are closer than it (see [4.5](#45-pq-units-domain)) | $1$ (MW, MVar) | |
| Parameter | Description | Default value | Possible value |
|----------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-------------------|---------------------------------------------|
| log_level_ampl | Level of display for AMPL prints | INFO | {DEBUG, INFO, WARNING, ERROR} |
| log_level_knitro | Level of display for solver prints (see [AMPL documentation](https://dev.ampl.com/ampl/options.html) | $1$ | ${0, 1, 2}$ |
| objective_choice | Choice of the objective function for the ACOPF (see [6.2](#62-alternative-current-optimal-power-flow)) | $0$ | ${0, 1, 2}$ |
| ratio_voltage_target | Ratio to calculate target V of buses when objective_choice = 1 | $0.5$ | $\[0; 1\]$ |
| coeff_alpha | Weight to favor more/less minimization of active power produced by generators or deviation between them and target values (see [6.2](#62-alternative-current-optimal-power-flow)) | $1$ | $\[0; 1\]$ |
| Pnull | Threshold of active and reactive powers considered as null | $0.01$ (MW) | $\[0; 1\]$ |
| Znull | Threshold of impedance considered as null (see [4.2](#42-zero-impedance-lines)) | $10^{-5}$ (p.u.) | $\[0; 0.1\]$ |
| epsilon_nominal_voltage | Threshold to ignore voltage levels with nominal voltage lower than it | $1$ (kV) | $\mathcal{R}^{+}$ |
| min_plausible_low_voltage_limit | Consistency bound for low voltage limit of voltage levels (see [4.1](#41-voltage-level-limits-computation)) | $0.5$ (p.u.) | $\mathcal{R}^{+}$ |
| max_plausible_high_voltage_limit | Consistency bound for high voltage limit of voltage levels (see [4.1](#41-voltage-level-limits-computation)) | $1.5$ (p.u.) | [min_plausible_low_voltage_limit; $\infty$] |
| ignore_voltage_bounds | Threshold to replace voltage limits of voltage levels with nominal voltage lower than it, by [`min_plausible_low_voltage_limit`; `max_plausible_high_voltage_limit`] | $0$ (p.u.) | $\mathcal{R}^{+}$ |
| buses_with_reactive_slacks | Choice of which buses will have reactive slacks attached in ACOPF solving (see [6.2](#62-alternative-current-optimal-power-flow)) | NO_GENERATION | {CONFIGURED, NO_GENERATION, ALL} |
| PQmax | Threshold for maximum active and reactive power considered in correction of generator limits (see [4.5](#45-pq-units-domain)) | $9000$ (MW, Mvar) | |
| defaultPmax | Threshold for correction of high active power limit produced by generators (see [4.5](#45-pq-units-domain)) | $1000$ (MW) | |
| defaultPmin | Threshold for correction of low active power limit produced by generators (see [4.5](#45-pq-units-domain)) | $0$ (MW) | |
| defaultQmaxPmaxRatio | Ratio used to calculate threshold for corrections of high/low reactive power limits (see [4.5](#45-pq-units-domain)) | $0.3$ (Mvar/MW) | |
| minimalQPrange | Threshold to fix active (resp. reactive) power of generators with active (resp. reactive) power limits that are closer than it (see [4.5](#45-pq-units-domain)) | $1$ (MW, MVar) | |


In addition to the previous parameters, the user can specify which
Expand Down Expand Up @@ -146,7 +146,7 @@ the following pre-processing blocks are executed to ensure the consistency of th
In order to ensure consistent voltage level limits,
the consistency thresholds `minimal_voltage_lower_bound` and `maximal_voltage_upper_bound` are employed.
They are initialized as follows:
- minimal_voltage_lower_bound = ${\rm max}({\rm min_{vl\in SUBSTATIONS}}(V_{min}^{vl}), $ min_plausible_low_voltage_limit$)$
- minimal_voltage_lower_bound = max($min_{vl\in SUBSTATIONS}}(V_{min}^{vl})$,min_plausible_low_voltage_limit)
- maximal_voltage_upper_bound = ${\rm min}({\rm max_{vl\in SUBSTATIONS}}(V_{max}^{vl}), $ max_plausible_high_voltage_limit$)$
- `minimal_voltage_lower_bound` is set equal to the maximum value between the configurable threshold `min_plausible_low_voltage_limit` (see [3.2](#32-configuration-of-the-run))
and the minimum voltage limit across the entire network (considering all voltage levels).
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