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시뮬레이션 및 분석
분석 함수와 Simscape™ 기록 변수를 사용하여 고조파 데이터를 분석하고, 테이블 형식으로 작성하고, 플로팅합니다. 스위칭 이벤트로 인한 열 손실과 반도체의 전도 손실을 시뮬레이션합니다. 부하 흐름 분석을 수행하고 그 결과를 사용하여 AC 정상 상태 시뮬레이션을 초기화합니다.
Simscape 블록
| Busbar | 부하 흐름 분석 부스바 커넥터 |
| Load Flow Source | Three-phase voltage source for performing load flow analysis |
함수
ee_calculateFluxPartialDerivatives | Calculate flux partial derivatives for FEM-Parameterized PMSM block |
ee_calculateThdPercent | THD(총 고조파 왜곡) 백분율 계산 |
ee_comtradeDataset | Read and extract values from COMTRADE record |
ee_getBillOfMaterials | Generate report for current model and all subsystems |
ee_getCauerFromFoster | Get equivalent resistance and capacitance vectors for Cauer Thermal Model block from Foster Thermal Model block (R2022b 이후) |
ee_getEfficiency | Calculate efficiency as function of dissipated power losses |
ee_generateIdealPMSMfluxData | Generate tabulated flux linkage data for ideal PMSM |
generateDCDCConverterROM | Generate reduced-order model of DC-DC power converter system (R2025a 이후) |
generateMotorDriveROM | Generate reduced-order model of motor drive system (R2024a 이후) |
generateSemiconductorSwitchROM | Generate reduced-order model of semiconductor switch subsystem (R2024b 이후) |
generateSemiconductorSubcircuitROM | Generate reduced-order model of SPICE subcircuit (R2025a 이후) |
ee_getHarmonics | Return harmonic orders, magnitudes, and fundamental frequency |
ee_getNodeDvDtSummary | Calculate maximum absolute values of terminal voltage time derivatives (dv/dt) based on logged simulation data |
ee_getNodeDvDtTimeSeries | Calculate rates-of-change of voltage variables |
ee_getPowerLossSummary | Calculate dissipated power losses and switching losses |
ee_getPowerLossTimeSeries | Calculate dissipated power losses and switching losses, and return time series data |
ee_importDeviceParameters | Hitachi, Infineon 또는 Wolfspeed XML 파일에서 추출한 이상적 반도체 블록 파라미터화 (R2021b 이후) |
ee_plotHarmonics | Plot percentage of fundamental magnitude versus harmonic order |
분석 툴
도움말 항목
- Examine the Simulation Data Logging Configuration of a Model
Determine if data logging is enabled for your model.
- Choose a Simscape Electrical Function for an Offline Harmonic Analysis
Explore the capabilities of Simscape Electrical™ harmonic analysis functions.
- Perform an Online Harmonic Analysis Using the Simscape Spectrum Analyzer Block
Learn how to analyze harmonic distortion using the Spectrum Analyzer block.
- Perform a Power-Loss Analysis
Calculate power losses for Simscape Electrical semiconductor blocks.
- Perform a Load-Flow Analysis Using Simscape Electrical
Learn how to perform a power-flow, or load-flow, analysis for a three-phase Simscape Electrical network using the Simscape three-phase electrical domain.
- Optimize Block Settings for Simulating with the Partitioning Solver
Avoid simulation errors by configuring models for simulation with the specific solvers by using the
ee_updateSolverfunction. - Phasor-Mode Simulation Using Simscape Components
Configure your model to use frequency-time equation formulation.
추천 예제
복합 3상 정류기
분석 워크플로 예제에 사용되는 기본 모델입니다.
Harmonic Analysis of a Three-Phase Rectifier
Use functions which analyze Simscape™ logging data to get harmonic magnitudes, calculate total harmonic distortion percentage and plot harmonic magnitudes. The model to which this analysis is applied is of a three-phase rectifier. The functions demonstrated are:
2-Bus Loadflow
A model of a two-bus three-phase power system network. The model uses three instances of the Load Flow Source block from Simscape™ Electrical™, one configured to be the swing bus, one configured to be the PV bus, and one configured to be the PQ load. The PV bus regulates its output to be at a voltage of 1.025 times rated voltage and to deliver 80MW active power to the network. The Swing bus regulates voltage at the other end of the transmission line to be one times rated voltage, and it delivers the requisite power to the network so that overall active and reactive powers balance. The Simscape initialization solver determines the required internal initial voltage amplitudes and phases in both the PV bus and the Swing bus so as to start in steady state.
IEEE 9-버스 부하 흐름
이 예제에서는 9-버스 3상 전력 시스템 네트워크의 모델을 보여줍니다. 이 예제는 IEEE® 벤치마크 테스트 케이스를 기반으로 합니다. 자세한 내용은 "Power System Control and Stability" by P. M. Anderson and A. A. Fouad(IEEE Press, 2003)에서 확인할 수 있습니다. Simscape™는 2개의 발전기를 지정된 전력과 단자 전압으로 초기화하고, 남아 있는 스윙 버스 발전기는 지정된 전압만 충족하도록 초기화합니다. 결과로 생성된 부하 흐름 솔루션은 각각의 부스바 사후 시뮬레이션에 추가됩니다. 4개 행은 각각 per-unit 전압, 위상, 유효 전력, 무효 전력에 대응됩니다. Bus 1을 살펴보면, 스윙 발전기가 76.4MW의 유효 전력과 27.5MVAr의 무효 전력을 네트워크에 전달하고 있음을 주석에서 확인할 수 있습니다. 원래 벤치마크와의 차이는 사용된 전송선로 모델과 변압기 구성으로 인한 것입니다.
IEEE 9-버스 시스템
이 예제에서는 9-버스 3상 전력 시스템 네트워크를 모델링하는 방법을 보여줍니다. 이 예제는 IEEE® 벤치마크 테스트 케이스를 기반으로 합니다. 자세한 내용은 "Power System Control and Stability" by P. M. Anderson and A. A. Fouad(IEEE Press, 2003)를 참조하십시오.
Induction Motor Initialization with Loadflow
Initialize a three-phase induction motor as part of a load flow analysis. When initializing an induction machine that is directly connected to an AC network, in steady state there is one degree of freedom which you can set by any one of shaft torque, shaft power, motor speed, or electrical power.
Synchronous Machine Initialization with Loadflow
Initialize synchronous machine as part of a load flow analysis. When initializing a synchronous machine there are two degrees of freedom which can be set by any two of rotor angle, active power, reactive power and terminal voltage. The pair of variables that are constrained is set by the source type drop-down menu, this having options of Swing bus, PV bus and PQ bus. Here the machine is configured for a swing bus with a 1.02 per-unit voltage and zero degrees phase.
JFET Amplifier and Frequency Response Analysis
An audio amplifier circuit based on an N-channel JFET. The desired operating point is taken to be Vds=5V, Id=2mA and Vgs=-2V. The manufacturer datasheet gives the JFET forward transfer conductance and output conductance values as 3mS and 50uS. These values are used to populate the mask of the N-Channel JFET block.
Power-Loss Analysis of a Three-Phase Rectifier
Perform a power-loss analysis using the ee_getPowerLossSummary function and the power_dissipated variable. The Rectifier contains six Diode blocks. Diodes D1, D2, D4, and D5 each dissipate, on average, 52.19 W over the course of the 0.5 second simulation. Diodes D3 and D6 each dissipate an average of 52.22 W for the same time period because they experience a 340 W transient power-dissipation spike due to DC-load capacitor charging before t = 1e-3 s. For each diode, the average power dissipated when the rectifier is operating in steady-state, t = 0.4 to 0.5 s, is 52.19 W.
Calculate Losses in a Power Converter
Calculate the losses in a power converter using the ee_getPowerLossSummary function and the power_dissipated variable. The power converter contains six Diode blocks. Diodes D1, D2, D4, and D5 each lose, on average, 52.19 W over the course of the 0.5 second simulation. Diodes D3 and D6 each lose an average of 52.22 W for the same time period because they experience a 340 W transient power-dissipation spike due to DC-load capacitor charging before t = 1e-3 s. For each diode, the average power loss when the power converter is operating in steady-state, t = 0.4 to 0.5 s, is 52.19 W.
혼합 AC/DC 시스템 부하 흐름
이 예제에서는 Load Flow Analyzer를 사용하여 혼합 AC/DC 시스템의 부하 흐름 결과를 검토하는 방법을 보여줍니다. 이 분석이 적용되는 모델은 AC 부하 흐름 소스, 3상 정류기, 3개의 부하를 포함하고 있습니다. 3개의 부하 중 하나는 AC이고, 다른 하나는 DC 측에 영구적으로 연결되고, 나머지 하나는 DC 측에서 스위치에 의해 켜집니다.
