In order to further strengthen the science and technology education work of our hospital，Promote the whole process of cultivating students’ scientific and innovative spirit，The School of Electrical Engineering successfully held the 16th "Power Cup" Student Academic Science and Technology Works Competition in late May。With the strong support of Shandong Electric Power and college leaders and teachers，This competition actively innovates on the basis of summarizing previous experiences，Received wide recognition and active participation from teachers and classmates，A total of 24 teams participated，After preliminary selection and final defense，The final three sets of works won the first prize，6 groups of works won the second prize，7 groups of works won third prize。
Next，Follow us，Let’s review how to get one、Excellent works that won the second prize！
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Signal analysis software in Comtrade wave recording file format
This software can read Comtrade wave recording files generated by power system wave recording devices，And realize data alignment of analog waveforms，By improved direct-axis current differential judgment algorithm，The software can accurately determine the fault channel，Reliable operation even under high-resistance fault ride-through current conditions。The software provides a graphical display function of wave recording data，Enables users to visually observe fault waveforms，And accurately determine the fault occurrence、Excision、The specific moment of overlap and re-excision。The project is based on meeting the basic requirements of the topic，Added two innovative points: fault self-synchronization algorithm based on wavelet transform and improved direct-axis current differential protection algorithm，Significantly improves the performance and practicality of the software。
Second Prize for Free Proposal for Undergraduate Students
Rocket attitude control system based on Kalman filter
The project uses the ESP32 platform as the microcontroller unit (MCU)，Simulate the aerodynamic control process of the rocket by controlling the steering gear，Thus realizing the adjustment of the rocket’s flight attitude。In addition，The project also considered aerodynamics、Thrust vector control and jet control and other aspects that affect the rocket industry，To ensure the stable flight of the rocket。Through continuous technological innovation and system optimization，This design further improves the accuracy of rocket attitude control，obtained better control effect。
Three, First Prize, Free Proposition, Graduate Student Group
Design and optimization of permanent magnet brushless motor for starter integrated machine
This design successfully applies the single-rotor single-stator axial flux permanent magnet brushless motor (AFPM) to the ISG system，Achieve compact and efficient design of motor。The use of three-stage stepped permanent magnets greatly reduces eddy current losses，The multi-objective optimization design improves the power density of the motor。Mechanical analysis and flow thermal field results prove the efficient performance of the proposed air-cooled structure。The success of the prototype test further verified the feasibility and reliability of the design scheme。
Four Second Prize for Designated Proposition in Graduate Group
Swing ball attitude detection device based on MPU6050
This work studies the working principle of the MPU6050 space motion sensor chip，Finally, the MPU6050 space motion sensor is used to measure the pendulum ball (the cycloid length is 1.0 meters) real-time speed、Acceleration、Displacement and swing frequency information，And display the calculation results on the OLED screen。This work can accurately measure the real-time acceleration of objects、Speed、Physical quantities such as displacement and frequency，It has important practical significance，Able to train for sports、Providing important data for equipment debugging and scientific research，Help users optimize performance and improve accuracy。
Five Second Prize for Undergraduate Free Proposal
RGB colorful smart flowerpot based on Arduino
By analyzing and processing the data collected by the sensors，Based on the light of a normal ecosystem、Temperature、Humidity、Moisture and other parameters，Determine whether the flowerpot ecosystem is in a steady state，And perform calculations on the data、Statistics and Display。This design determines parameters by writing an algorithm and displays different characters on the display screen based on the determination results。Created an App matching the work on the Appinventor platform。via HC-06 Bluetooth module，Can display various data measured by the sensor in real time，And send the command through the text box，Achieving the effect of remote control。
Second Prize for Sixth Postgraduate Free Proposal
Optical power storage equipment suitable for green buildings
This equipment is a light-storage direct-flexible building energy-saving equipment suitable for green buildings。The output of the photovoltaic array is connected to the DC bus through the boost converter。The DC bus is connected to the grid through a three-phase inverter and a step-up transformer。The energy storage is connected to the DC bus through a bidirectional DC-DC converter，Coordinate with photovoltaic power fluctuations，Maintain DC bus power constant。The DC bus can be directly connected through the buck converter，Can be used for charging DC loads such as electric vehicles。
Fast and accurate calculation system for temperature field of permanent magnet motor for new energy electric vehicles
This work quickly and accurately calculates the losses of permanent magnet motors，Especially iron loss and permanent magnet eddy loss，To predict the global temperature distribution and hot spots of the motor，Thus effectively preventing insulation damage caused by excessive temperature、Winding short circuit、Problems such as permanent magnet demagnetization and material deformation。The study used a magnetic field analysis model and an improved finite difference method，Combining complex component equivalent and thermal subdomain models，Improved calculation efficiency and accuracy。
Refined modeling and simulation toolbox for integrated energy systems
Toolbox of this work builds a simulation model based on the mechanism mathematical equations of each link of the integrated energy system to form a refined model library，Can achieve refined modeling of comprehensive energy；Secondly, a friendly user interface was developed based on the Simulink simulation environment；At the same time，Based on model library，Developed a multi-functional simulation calculation module，Can realize offline simulation and real-time simulation of the system。The steady-state simulation of the toolbox has made four improvements based on the existing functions，Added intraday correction and day-ahead scheduling functions at the same time。
Phase-shifted modulation dual active bridge transformation topology cluster continuous set simplified model predictive control and its noise tolerance improvement strategy
This study first establishes a unified simplified model of multi-topology structures，Iterative correction of simplified model，Finally proposed a simple and feasible sampling noise suppression strategy。Linearize the prediction model，And use the Kalman filter algorithm to correct the linear simplified model in real time。Solution to the optimal control quantity，Using two-step predictive control，And make optimal estimates of some unknown parameters in the prediction model，Overcomes the controller calculation delay problem existing in traditional single-step model predictive control。In terms of improving noise tolerance，Reconstructed prediction model，Introduction of noise margin coefficient，Effective suppression of sampling noise is achieved by increasing the noise margin coefficient。
The successful conclusion of this "Power Cup" competition，Built a platform for students to showcase their talents、Exercise professional skills、A stage to promote knowledge exchange。Not only exercises everyone’s practical ability and ability to solve complex problems，It has also significantly enhanced the school’s influence in academic research and technological innovation。Future，"Power Cup" Student Academic Science and Technology Works Competition will continue to pursue excellence，Continuous optimization and innovation，Towards a higher level of development。We are looking forward to next summer，"Power Cup" can reunite with everyone again，Work together to meet new challenges and opportunities！
