DITHER CURRENT POWER SUPPLY CONTROL METHOD AND DITHER CURRENT POWER SUPPLY CONTROL APPARATUS

• Main Authors: ARITA HIROYUKI, NAKANISHI MASATO, OGATA TOMOAKI, IGUCHI SHINGO, MATSUMOTO SHUICHI
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2017
• Subjects: ACTUATING-FLOATS; APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BLASTING; COCKS; CONTROL OR REGULATION THEREOF; CONTROLLING; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DEVICES FOR VENTING OR AERATING; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; PHYSICS; REGULATING; SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The invention provides a dither current power supply control method which can increase negative feedback control precision so that a detected average current of a proportional solenoid coil is same with a target detecting current, wherein the detected average current comprises dither current. In the dither current power supply control method, in order to prevent occurrence of a difference between the target average current and the detected average current, which is caused when a medium current (I0) between a dither large current (I2) and a dither small current (I1) and a waveform average (Ia) of the dither current are different from each other depending on a response time difference (a-b) between a rise time (b) and a fall time (a) of the dither current, negative feedback control is carried out by using a command medium current corresponding to the target average current corrected by a correction parameter based on experimentally measured data, thereby suppressing occurrence of a transient fluctuation error b