MAKING A BUS SIMULATOR 18 SERVER GENERATOR
MAKING A BUS SIMULATOR 18 SERVER FULL
MAKING A BUS SIMULATOR 18 SERVER CODE

Fault Analysis: Fixed application of the correct units (pu or amps) on fields displaying fault currents on the oneline.Fault Analysis: Fixed bug setting up positive and negative sequence admittance matrices for an IEC-909 or Flat Classical fault.Contingency Analysis: If a contingency that implements no actions follows a contingency that hit reserve limits, the contingency that implements no actions will have reserve limits reported with it as well because this flag was not getting reset.Case Information Displays: Fixed bugs with inserting new MW Transactions for the case information display.

MAKING A BUS SIMULATOR 18 SERVER FULL

Integrated Topology Processing (ITP): When saving a full topology model to a consolidated case, shunts that are connected to the same superbus by open breakers will be merged into a single shunt with blocks.

Now all generators inserted at a bus categorized as a Load bus will be inserted out of service.

MAKING A BUS SIMULATOR 18 SERVER GENERATOR

But any other bus read at the same terminal bus would be treated as if it was being connected to a generator bus, regardless of the bus category in the RAW file, because after the first bus was connected there (even out of service) Simulator was treating the bus as a generator bus from that point forward. Previously only the first generator at the bus was being properly identified at a load bus and set offline. File Formats: Fixed error setting generator statuses on buses that are categorized as load buses in the Bus section of the RAW file.File Formats: The option to disable DFACTs control globally was not being save to PWB files.File Formats: The option to disable SVC control globally was not being saved to PWB files.Contingency Analysis: Access violations could occur if deleting three-winding transformers that are part of a contingency element.Auxiliary Files (SCRIPT and DATA Sections): Added field with Sim_Solution_Options to enable/disable DFACTs control globally.

Simulator has been changed so that when ThetaMin is negative, the initialized output of the pitch controller is set to 0.0 (zero). Previously Simulator was initializing this value to ThetaMin which appeared OK, but this equilibrium point is an unstable equalibrium. Both will result in the appropriate initial output from the Aerodynamic model. In this situation however, the initial output of the WT3P/WT3P1/WTGPT_A model could be either ThetaMin or 0.0 (zero).

Transient Stability: When a negative ThetaMin value is specified for wind pitch controller WT3P, WT3P1, or WTGPT_A model, this can be used by the WT3T/WT3T1/WTGT_A model to determine it's Theta0 value.

If there were 2 or more parallel transformers in the model, the off-diagonal elements in the admittance matrices were not correctly combining all of the transformer admittances, but rather was only putting one of the transformer admittances in the off-diagonal and was ignoring the rest of the parallel transformers.

Fault Analysis: Fixed a bug when building the positive and negative sequence admittance matrices.

PowerWorld had never seen a model with input limits that would be active however, so this had never been noticed. However, PSS2B has input limits Vs2max and Vs2min so this distinction would matter if these limits were specified. This had never mattered previously because the first block on PSS2B was a washout block and thus any constant input offset was completely removed anyway. We have found that it is intended to be Pelec directly instead.

MAKING A BUS SIMULATOR 18 SERVER CODE

Transient Stability: Simulator had previously been treating the input to PSS2B when code 3 used as as Pelec - PelecInitial.

Vrefmax and Vrefmin are really part of the slow B control in the power flow, so if they're not active in the power flow model, it makes sense that they also not be active in the stability model.

Transient Stability: Modified the svsmo1, svsmo2, and svsmo3 models so that if the slow B control is not active in the power flow input data, then we ignore the Vrefmax and Vrefmin values in the stability model.

Making a bus simulator 18 server