Traditional method of realtime transmission,digital scan transformation and display of primary video is implemented by hardware.

Function design of primary frequency modulation and performance test for 215MW thermal power generating set;

Analysis for Primary Frequency Modulation of Turbo-generator Unit;

Application and realization of primary frequency modulation function for thermal-power generating unit;

Control modes of primary frequency regulation of DEH for 1 000 MW thermal units;

Improvement and optimization of automatic generation control and primary frequency regulation for fixed fossil-fired units;

Joint application of CCS and DEH to primary frequency regulation;

Field test and strategy analysis of primary frequency control in Yunnan power grid;

Function of the primary frequency control in power system and explanation of the technical parameters request in North China Grid are introduced.

There is a loop of pressure in DEB system,so primary frequency control is hold-up.

Analysis About a Turbine Trip Accident Caused by the Setting of Inappropriate Parameters in Primary Frequency Regulation;

Solutions for primary frequency regulation and its influence on unit main parameters;

The detailed configuration of primary frequency modulation for large thermal power plants as well as note-worthy points was presented.

This paper focuses on the three major technical obstacles encountered in the process of designing the VHF SSB mobile receiver and presents a design program using one time frequency converting,dual-PLL.