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研制了基于现场可编程门阵列 (FPGA)实现的、用于± 50 0 kvar静止补偿器 (STATCOM)的 PWM脉冲发生器。该脉冲发生器通过接口单元接收 DSP写入的 PWM脉冲宽度数据 ,然后产生 PWM波形 ,其工作不受 DSP影响。同时介绍了脉冲发生器的基本原理、硬件构成和实现方法。该脉冲发生器已应用在工业和试验运行的± 50 0 kvar STATCOM中 ,实际运行经验表明 ,该脉冲发生器精度高、可靠 ,可解决非对称和无功控制不平滑问题 ,而且所研制的脉冲发生器也适用于其他类型的逆变装置。
A PWM pulse generator based on a field programmable gate array (FPGA) for a ± 50 kvar static compensator (STATCOM) was developed. The pulse generator receives the PWM pulse width data written by the DSP through the interface unit and then generates a PWM waveform whose operation is not affected by the DSP. At the same time introduced the basic principle of pulse generator, hardware and implementation methods. The pulse generator has been applied in ± 50 0 kvar STATCOM for industrial and test operation. The actual operation experience shows that the pulse generator has high precision and reliability, and can solve the unsymmetrical and reactive power control non-smoothing problems. Moreover, the developed pulse The generator is also suitable for other types of inverters.