论文部分内容阅读
针对下运带式输送机在重载输送时会产生再生电能的特殊工况,提出了回馈制动系统的应用。对回馈系统的原理进行了阐述,并提出了一种高效可行的控制方法,采用空间矢量脉宽调制策略生成IGBT开关信号,实现了再生电能安全有效地回馈至电网。运用仿真软件Simulink对能量回馈系统进行了仿真,结果表明:回馈系统实现了再生电能以单位功率因数回馈电网,证明了系统的可行性。
Aiming at the special working condition that the belt conveyor belt will generate regenerative electric energy when it is under heavy load transportation, the application of the feedback braking system is put forward. The principle of the feedback system is expounded, and a highly efficient and feasible control method is proposed. The IGBT switching signal is generated by the space vector pulse width modulation strategy, and the regenerative power can be safely and effectively fed back to the power grid. The simulation software Simulink is used to simulate the energy feedback system. The results show that the feedback system realizes that the regenerative energy is fed back into the power grid with unit power factor, which proves the feasibility of the system.