Approach to Zero Crossing Point Detection of Back EMF
Based on the Z-source inverter, this paper proposed a novel approach to zero-crossing point (ZCP) detections during the shoot-through vectors for sensorless brushless dc motor (BLDCM). The proposed approach separates the ZCP detections from speed adjustment, and makes the shoot-through vector not influence the motor speed-adjustment directly, while the zero-vectors and active-vectors are used exclusively to adjust the speed of BLDCM. With the proposed approach, the sensorless BLDCM can operate in a wide speed range without switching the detection points and the reference levels, and it is unnecessary to change the reference levels according to the PWM technique.
The terminal voltages limited by diode can be directly compared with the reference zero level during the shoot-through vectors, so as to reduce the detection error caused by attenuation. Moreover, Z-source inverter not only provides boost voltage for sensorless BLDCM drive system, but also improves the utilization rate of dc source voltage and the safety of the drive system. In addition, this paper analyzed the terminal voltages of the floating phase during each vector. The experimental results verified the correctness of above theories and proved the effectiveness of the proposed approach.
Related Power Electronics Project Titles:
- Capacitor Voltage Balancing of a Five-Level ANPC Converter Using Phase-Shifted PWM.
- Networked-Based Hybrid Distributed Power Sharing and Control for Islanded Microgrid Systems.
- A Photovoltaic Array Transformer-Less Inverter With Film Capacitors and Silicon Carbide Transistors.
- Using Current Surface Probe to Measure the Current of the Fast Power Semiconductors.
- Wireless Power Transmission Through Concrete Using Circuits Resonating at Utility Frequency of 60 Hz.
- Research on the Failure Mechanism of High-Power GaAs PCSS.
- High-Performance and Energy-Efficient Fault Diagnosis Using Effective Envelope Analysis and Denoising on a General-Purpose Graphics Processing Unit.
- Analysis of Low-Frequency Oscillation in Electric Railways Based on Small-Signal Modeling of Vehicle-Grid System in dq Frame.
- A Family of Multiport Buck–Boost Converters Based on DC-Link-Inductors (DLIs).
- Hybrid Multilevel Converter With Cascaded H-bridge Cells for HVDC Applications: Operating Principle and Scalability.
- Analysis and Operation of Modular Multilevel Converters With Phase-Shifted Carrier PWM.
- An Adaptive Droop DC-Bus Voltage Controller for a Grid-Connected Voltage Source Inverter With LCL Filter.
- Optimized Control Strategy Based on Dynamic Redundancy for the Modular Multilevel Converter.
- Analysis of D-Q Small-Signal Impedance of Grid-Tied Inverters.
- Carrier-Based Pulse Width Modulation for Symmetrical Six-Phase Drives.
- A High-Efficiency Resonant Switched Capacitor Converter With Continuous Conversion Ratio.
- Cascaded Control System of the Modular Multilevel Converter for Feeding Variable-Speed Drives.
- Modeling and Elimination of Zero-Sequence Circulating Currents in Parallel Three-Level T-Type Grid-Connected Inverters.
- A Family of Soft-Switching DC–DC Converters Based on a Phase-Shift-Controlled Active Boost Rectifier.
Subscribe Our Youtube Channel
You can Watch all Subjects Matlab & Simulink latest Innovative Project Results
We want to support Uncompromise Matlab service for all your Requirements Our Reseachers and Technical team keep update the technology for all subjects ,We assure We Meet out Your Needs.
- Matlab Research Paper Help
- Matlab assignment help
- Matlab Project Help
- Matlab Homework Help
- Simulink assignment help
- Simulink Project Help
- Simulink Homework Help
- Matlab Research Paper Help
- NS3 Research Paper Help
- Omnet++ Research Paper Help
- Customised Matlab Assignments
- Global Assignment Knowledge
- Best Assignment Writers
- Certified Matlab Trainers
- Experienced Matlab Developers
- Over 400k+ Satisfied Students
- Ontime support
- Best Price Guarantee
- Plagiarism Free Work
- Correct Citations
Expert Matlab services just 1-click
Unlimited support we offer you
For better understanding purpose we provide following Materials for all Kind of Research & Assignment & Homework service.
- Result snapshot
- Video Tutorial
- Instructions Profile
- Sofware Install Guide
- Execution Guidance
- Implement Plan
Matlab projects innovators has laid our steps in all dimension related to math works.Our concern support matlab projects for more than 10 years.Many Research scholars are benefited by our matlab projects service.We are trusted institution who supplies matlab projects for many universities and colleges.
Reasons to choose Matlab Projects .org???
Our Service are widely utilized by Research centers.More than 5000+ Projects & Thesis has been provided by us to Students & Research Scholars. All current mathworks software versions are being updated by us.
Our concern has provided the required solution for all the above mention technical problems required by clients with best Customer Support.
- Novel Idea
- Ontime Delivery
- Best Prices
- Unique Work