| 1. | To minimize computer requirements, system frequency response is often compromised .
为了尽量减少计算机的工作量，需要分析系统的频率响应特性。 |
| 2. | Gets the raw system frequency
获取原始系统频率。 |
| 3. | According to the best selected parameters , it gave the system frequency speciality and dynamic performance
根据所选最佳参数进行仿真，给出系统的频率特性及动态性能指标。 |
| 4. | In this paper , a firing - pulse generator based on measuring ac system frequency is presented . a modern programmable asic fpga is used to build logical circuits
本文比较了逻辑图输入法和vhdl设计法这两种集成电路的设计方法，最后选用vhdl来设计fpga芯片。 |
| 5. | Computer simulation indicates , the algorithm can follow the change of system frequency well and carry on the tracking measurement of frequency on the multiple signals at the same time
计算机仿真结果表明，本算法能较好地跟踪系统频率的变化，能够同时对多路信号进行频率的跟踪测量。 |
| 6. | Based on the simplified model , the author analysis the relationship between the system ’ s stability , system frequency band , the position precision and parameter . some valuable conclusions are arrived
针对简化模型分析了系统的稳定性、系统频宽、控制精度与系统参数的关系,得出了一些对控制系统设计有参考价值的结论。 |
| 7. | The basic agc roles include : ( 1 ) making generation follow the load change , and holding system frequency on fix value ; ( 2 ) dispatching power to each area , and holding exchanging power on fix value between each area
其主要功能是响应负荷和发电的随机变化，维持电力系统频率为规定值，响应各区域分配系统发电功率，维持区域间净交换功率为计划值。 |
| 8. | The paper designs a more lpf and a numberical filter to eliminate the error , and a frequency tracing tache because system frequency fluctuates ceaselessly . this guarantes synchronization sampling
为了消除频率混叠带来的误差，专门设计具有较好性能的低通滤波器和数字滤波器；由于系统频率波动性，设计有硬件电路组成的频率跟踪环节，最终实现采样周期和信号周期同步。 |
| 9. | Thirdly , power system frequency as weighing the quality of electric energy needs to be monitored ; on the other hand , as the important feedback state for implementing the security and steady controls , it requires being real - time constructed again
再次，电力系统频率一方面作为衡量电能质量的指标，需加以动态监测；另一方面作为实施安全稳定控制的重要状态反馈量，要求能实时重构。 |
| 10. | Therefore , the paper mainly discusses the pluses and minuses of the multifarious frequency estimation algorithms , and develops an adaptive method of evaluation on dft for power system frequency , which is based on the equal - angle sampling principle
因此，本文着重论述了历史上各种频率测量算法的优缺点，并在自适应调整采样率的等角度采样原则的基础上，提出了一种基于dft的电网频率测量的自适应估计算法。 |
