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Zhang Y.,Shandong University | Zhang Y.,Shandong Provincial Key Laboratory of Automotive Electronics | Xu Y.,Shandong University | Li B.,Shandong Provincial Key Laboratory of Automotive Electronics
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | Year: 2013

Reasonable design of gate driving is very important for MOSFET to work well. The ideal gate driving circuit should have low di/dt and du/dt, low switching loss and quick switching speed etc. But there are conflicts among these requirements: low gate driving power will increase the switching loss, and high di/dt and du/dt introduced by high gate driving power will cause serious electromagnetic interference. This paper analyzes the opening process of MOSFET in detail, and proposes an optimized driving method based on dynamic power. An auxiliary driving system is designed and a detailed analysis of the driving process is given too. Dual power supply is used in this design and the driving resistance could also be dynamic adjustment. Finally, the effectiveness of the proposed design is demonstrated through SR motor experiments. Source


Zhang Y.,Shandong University | Zhang Y.,Shandong Provincial Key Laboratory of Automotive Electronics | Xu Y.,Shandong Provincial Key Laboratory of Automotive Electronics | Kong H.,Shandong Provincial Key Laboratory of Automotive Electronics | Li Y.,Shandong University
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | Year: 2013

Through the analysis of experimental results of prototyped switched reluctance motor (SRM), the effect of its speed, phase current, turn-on angle and turn-off angle on torque are introduced firstly. A SRM control system with optimal current mode is realized based on the foundation of its static multivariable neural network controller and the design of its training method to train the neural network secondly. To obtain training data of neural network efficiently, a variable step-size optimization method based on least square method is proposed. Current optimal control system can be realized to make output maximum torque by adjusting the turn-on and turn-off angle. Then the presented neutral controller is combined with the normal PID controller to achieve its ability of dynamic adjustment. Finally, the effectiveness of the proposed design is demonstrated through prototype SRM experiments. Source


Sun R.,Shandong Provincial Key Laboratory of Automotive Electronics | Sun R.,Shandong Academy of Sciences | Wang Y.,Shandong Provincial Key Laboratory of Automotive Electronics | Wang Y.,Shandong Academy of Sciences | And 2 more authors.
Advanced Materials Research | Year: 2014

With the large-scale promotion and application of CAN bus in automotive electronics, a set software tool supporting the development, analysis and test of CAN bus network is required for the design of CAN network and single automotive electronic unit. Since the CAN bus development and analysis tool adopted by the buyer is quite expensive and it should be bonded to specific CAN card, it is not applicable for parallel development. The team of the author realized a low-cost CAN network development and analysis tool with Java and JNI by taking Eclipse as the development platform. The tool mainly includes two parts, namely the networking protocol design tool and bus monitoring tool. The former realizes the design of signal matrix, provides several views for the network signal, and generates XML signal matrix as the interface of bus monitoring tool; while the latter realizes the control and interface of ordinary CAN card, which will carry out the real-time monitor of bus data and provide several views of the data for further analysis through connecting CAN card to the CAN bus network. © (2014) Trans Tech Publications, Switzerland. Source


Zhou G.,Shandong Provincial Key Laboratory of Automotive Electronics | Zhou G.,Shandong Academy of Sciences | Ren L.,Shandong Provincial Key Laboratory of Automotive Electronics | Ren L.,Shandong Academy of Sciences | And 4 more authors.
2013 International Conference on Electrical Machines and Systems, ICEMS 2013 | Year: 2013

In this paper a modular inverter with voltage and current loop controller in emergency communication power application is proposed. For obtaining perfect performance, the inverter adopts two closed-loop controllers. The voltage loop is as the outer loop. The current loop is the inner loop. To effectively eliminate the small value oscillation of the generator, Fuzzy logic based adaptive Proportional Integral Derivative (PID) control strategy is developed according to the voltage error and its change ratio in the voltage loop. The advanced hysteresis current controller and modified Pulse Width Modulate (PWM) method are adopted to decrease the Total Harmonic Distortion (THD) of output voltage. At last, the experimental results show that the proposed inverter has good voltage waveform. © 2013 IEEE. Source

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