CAJ | 학술논문

在分析风力机制动数学模型的基础上,设计了柔性制动系统,搭建了半物理混合仿真实验台,并在实验台上进行了风力机柔性制动模拟仿真实验.实验结果表明,风力机正常停机时,柔性制动系统通过改变PLC的PWM输出控制高速开关阀通断时间,从而调节制动力,完成柔性制动过程,可以使叶轮转速下降平缓,风力机齿轮箱扭矩波动减小.
재분석풍력궤제동수학모형적기출상,설계료유성제동계통,탑건료반물리혼합방진실험태,병재실험태상진행료풍력궤유성제동모의방진실험.실험결과표명,풍력궤정상정궤시,유성제동계통통과개변PLC적PWM수출공제고속개관벌통단시간,종이조절제동력,완성유성제동과정,가이사협륜전속하강평완,풍력궤치륜상뉴구파동감소.
A soft braking system was designed based on the mathematic model of wind turbine braking, and a semi-physical simulation test-bed for wind turbine was really formed. Analog simulation experiment for wind turbine soft braking was performed on the test-bed. Experiment results indicated that, when the wind turbine was regularly stopped, soft braking controls the high-speed switch valve on-off time by means of varying the PWM output of PLC, to adjust brake force through, which can make rotor speed fall down gently and minish the gearbox torque wave.