User manual MATLAB SIMPOWERSYSTEMS RELEASE NOTES

[. . . ] SimPowerSystemsTM Release Notes How to Contact The MathWorks Web Newsgroup www. mathworks. com/contact_TS. html Technical Support www. mathworks. com comp. soft-sys. matlab suggest@mathworks. com bugs@mathworks. com doc@mathworks. com service@mathworks. com info@mathworks. com Product enhancement suggestions Bug reports Documentation error reports Order status, license renewals, passcodes Sales, pricing, and general information 508-647-7000 (Phone) 508-647-7001 (Fax) The MathWorks, Inc. 3 Apple Hill Drive Natick, MA 01760-2098 For contact information about worldwide offices, see the MathWorks Web site. SimPowerSystemsTM Release Notes © COPYRIGHT 2003­2010 by The MathWorks, Inc. The software described in this document is furnished under a license agreement. The software may be used or copied only under the terms of the license agreement. [. . . ] User-Defined Battery type allows you to modify detailed parameters to represent any particular discharge characteristics. The Hybrid Electric Vehicle (HEV) Power Train demo (power_HEV_powertrain), which was introduced in Version 4. 4 (R2007a) and shows a multi-domain simulation of a HEV power train based on SimPowerSystems and SimDriveline blocks, has been modified to use the 19 SimPowerSystemsTM Release Notes Battery block. It is now called Hybrid Electric Vehicle (HEV) Power Train Using Battery Model. New Stepper Motor Block A new block, Stepper Motor, has been added to the Machines library. Depending on the motor configuration specified by the Motor type parameter, this block models: · A two- or four-phase permanent magnet or hybrid stepper motor · A three-, four-, or five-phase variable reluctance stepper motor Three New Transformer Blocks Three new transformer blocks have been added to the Elements library: · Grounding Transformer implements a transformer that is used to provide a neutral in a three-phase, three-wire system. The transformer consists of three two-winding transformers connected in a zigzag. · Three-Phase Transformer Inductance Matrix Type (Two Windings) represents inductive coupling between windings located on different phases of a three-limb or a five-limb core. It also allows modeling of a three-phase transformer built with three single-phase units (no coupling between phases). The transformer R L parameters are obtained from no-load excitation tests and short-circuit tests in positive- and zero-sequence. When core type is specified as Three-limb or five-limb core, the transformer is modeled by 9 coupled windings; otherwise, it is modeled by 3 sets of 2 coupled windings (Z0=Z1). · Three-Phase Transformer Inductance Matrix Type (Three Windings) represents coupling between windings located on different phases of a three-limb or a five-limb core. It also allows modeling of a three-phase transformer built with three single-phase units (no coupling between phases). The transformer R L parameters are obtained from no-load excitation tests and short-circuit tests in positive- and zero-sequence. When core type is specified as Three-limb or five-limb core, the transformer is modeled by 9 coupled windings; otherwise, it is modeled by 3 sets of 3 coupled windings (Z0=Z1). 20 Version 4. 5 (R2007b) SimPowerSystemsTM Software New Measurement Option Available for the PI Section Line Block A new measurement option, All pi-section voltages and currents, is available for the PI Section Line block. It allows you to measure voltages and currents at the start and end of each pi-section. New SimPowerSystems Demos The following demos have been added in Version 4. 5: Demo Name Ni-MH Battery Model (power_battery) Stepper Motor Drive (power_steppermotor) D-STATCOM (Average Model) (power_dstatcom_avg) Description Demonstration of the battery model during charge and discharge process. In the average model of a Distribution STATCOM, the IGBT Voltage-Sourced Converters (VSC) are represented by equivalent voltage sources generating the AC voltage averaged over one cycle of the switching frequency. This model does not represent harmonics, but the dynamics resulting from the control system and power system interaction are preserved. This model allows using much larger time steps (typically 40-50 microseconds), thus allowing simulations of several seconds. 21 SimPowerSystemsTM Release Notes D-STATCOM (Detailed Model) (power_dstatcom_pwm) The detailed model of a Distribution STATCOM includes detailed representation of power electronic IGBT converters. In order to achieve an acceptable accuracy with the 1680 Hz switching frequency used in this demo, the model must be discretized at a relatively small time step (5 microseconds). This model is well suited for observing harmonics and control system dynamic performance over relatively short periods of times (typically hundreds of milliseconds to one second). Detailed model of a 48-pulse, GTO-based Unified Power Flow Controller (500 kV, 100 MVA). UPFC (Detailed Model) (power_upfc_gto48p) Renamed psbhysteresis Command In Version 4. 5 (R2007b), power_hysteresis is the new name for the old psbhysteresis command. You use it exactly the same way you would use the psbhysteresis command. Compatibility Considerations Currently, if you issue the psbhysteresis command, it will automatically redirect to its new name, power_hysteresis. However, it is recommended that you update your scripts and use the new command name going forward. 22 Version 4. 4 (R2007a) SimPowerSystemsTM Software Version 4. 4 (R2007a) SimPowerSystems Software This table summarizes what's new in Version 4. 4 (R2007a): New Features and Changes Yes Details below Version Compatibility Considerations Yes--Details labeled as Compatibility Considerations within descriptions of new features and changes, below. [. . . ] For example, you cannot by mistake connect a Simulink Scope block directly to the phase terminals of a Synchronous Machine block. You must also keep Simulink signal lines and SimPowerSystems electrical connection lines separate. You cannot connect one type of line to the other by branching. 38 Version 3. 0 (R13SP1) SimPowerSystemsTM Software Blocks That Interface Between Simulink and SimPowerSystems Domains In Version 3. 0, SimPowerSystems blocks can have only terminal ports or only Simulink ports, or both types. Blocks such the Synchronous Machine block and the Thyristor block feature both port types. [. . . ]