Research Of SVC Of MCR Devices Based On DSP

For the 10 kV medium voltage systems static VAR compensator (SVC), is the latest hot topic Because of the constraints of electronic devices, this type of MCR SVC control of the principle and method of study Design based on TMS320F2812 at the core of TCR control devices.MCR is by changing the DC current in order to change the core excitation of magnetic saturation, Smoothing adjustment so as to achieve the purpose is smaller. Core features of a small cross-section than normal small, in the whole scope of regulatory capacity, only a small section of the saturation the rest of saturation are not linear in the state, by changing the small section of the magnetic circuit to change the saturation level reactor capacity.TMS320F2812 is the latest TI DSP chip, The processor core is based on TMS320C2xx the fixed-point digital signal processor, Part of the focus of a range of advanced peripherals and rich Delphi 2.0. Its characteristics are not only DSP kernel, it has powerful control capabilities, good power system to meet the measurement, calculation and control.DSP-based SVC mainly by the detection devices, control, drive, protection, and communications show modules. Loop Detection: Detecting the load voltage, current and synchronization signal; control circuit: According to the instantaneous power theory, calculated instantaneous active and reactive power, according to claim compensation calculated volume, look-up table, IGBT identify trigger conduction angle is given control signal; IGBT drive circuit: Under the control circuit output control signals to produce the trigger angle IGBT trigger pulse; keyboard and display circuit: Control screen keyboard, set up input, display current reactor into perspective, current value, active Reactive Power and fault displayed error messages; Switch input / output circuit: Switches and electrical resistance of the input signal and the gas switch on the control; Power circuit: provide the necessary chip 3.3V/1.8V power supply; communications circuit: Using RS232 control devices and PC transmission of information between.Used the TI's CCS integrated development environment, compilation and use of the C language compiler mixed, Implementation of the instantaneous reactive power compensation and the amount of calculation to determine trigger angle control the size, to achieve rapid continuous reactive compensation claims.