3-Phase Unbalanced Delta Connected Network using Simscape
Simscape model of a 3-phase unbalanced delta network analyzing line currents, phase currents, and voltage imbalance.
🔹 Overview
This project demonstrates a 3-phase unbalanced delta (Δ) connected network using MATLAB Simscape. It helps in analyzing current and voltage behavior under unbalanced load conditions in delta-connected systems.
🔹 Model Description
The model consists of:
- Three-phase AC voltage sources
- Unbalanced delta-connected load (different impedance in each branch)
- Measurement blocks for:
- Line currents (IR, IY, IB)
- Phase currents (IRR’, IYY’, IBB’)
- Line voltages (VRY, VYB, VBR)
- Scope for waveform visualization
🔹 Key Concepts Demonstrated
- Unbalanced three-phase system
- Delta (Δ) connection
- Relationship between line and phase currents
- Effect of unequal branch impedance
- Current imbalance and phase shift
🔹 Simulation Observations
- Line voltages remain balanced (supply dependent)
- Phase currents become unequal
- Line currents are unbalanced
- Current magnitude and phase angle vary in each branch
- No neutral current (delta connection)
🔹 Mathematical Relations
Line voltage:
V_L = V_Ph
Line current:
I_L ≠ √3 × I_Ph (under unbalanced condition)
KCL at nodes:
I_R + I_Y + I_B = 0
🔹 How to Run
- Open the .slx model file in MATLAB
- Run the simulation
- Observe current and voltage waveforms in Scope
- Analyze imbalance effects
🔹 Applications
- Power system analysis
- Fault and imbalance studies
- Industrial power networks
- Electrical engineering education
引用格式
karthik kumar k (2026). 3-Phase Unbalanced Delta Connected Network using Simscape (https://ww2.mathworks.cn/matlabcentral/fileexchange/183688-3-phase-unbalanced-delta-connected-network-using-simscape), MATLAB Central File Exchange. 检索时间: .
| 版本 | 已发布 | 发行说明 | Action |
|---|---|---|---|
| 1.0.0 |
