CAJ | 학술논문

针对小型无人机发动机相互分离的起动系统和发电系统存在起动机操作复杂和整流电路谐波分量多的问题，提出了一种无人机发动机起动/发电一体化方案。首先分析了整流/逆变双向PWM变换器控制系统，然后设计了其电压外环和电流内环PI调节器参数，最后进行了仿真验证。仿真结果表明，整流/逆变双向PWM变换器整流变换能够输出稳定的直流电压，并实现单位功率因数整流，逆变变换能够输出所需的三相交流电，从而验证了方案的可行性。
침대소형무인궤발동궤상호분리적기동계통화발전계통존재기동궤조작복잡화정류전로해파분량다적문제，제출료일충무인궤발동궤기동/발전일체화방안。수선분석료정류/역변쌍향PWM변환기공제계통，연후설계료기전압외배화전류내배PI조절기삼수，최후진행료방진험증。방진결과표명，정류/역변쌍향PWM변환기정류변환능구수출은정적직류전압，병실현단위공솔인수정류，역변변환능구수출소수적삼상교류전，종이험증료방안적가행성。
Aimed at the problems of there exist the complicated operation of starter and the more harmonic components of rectifiers in the separated starting and generation system of small-scale UAV, this paper proposes an integration scheme of the starting and generation system of UAV engine, where the control system of bi-directional PWM converter with rectifier and inverter is firstly analyzed, and then the parameters of PI adjusters in voltage outer loop and current inner loop are designed, and finally, simulation and test are performed. Simulation results show that the bi-directional PWM converter with rectifier and inverter can output the stable DC voltage and realizes the unit power factor rectification, and the conversion inverter could output the desired three-phase AC, thus proving the feasibility of the scheme.