Thermal power generating unit primary frequency modulation optimization control method based on time compensation and device

• Main Authors: LI JUN, GAO SONG, LIN BO, ZHOU CHANGLAI
• Format: Patent
• Language: English
• Published: 11.11.2015
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The present invention discloses a thermal power generating unit primary frequency modulation optimization control method based on time compensation and a device. The method comprises the steps that if the absolute value of a unit rotation speed deviation signal delta n does not exceed a primary frequency modulation dead zone range specified by a power grid, a unit normal primary frequency modulation compensation amount delta P1 is 0, and a unit load compensation amount delta P is 0; if the absolute value of a unit rotation speed deviation signal delta n exceeds the primary frequency modulation dead zone range specified by the power grid, the unit normal primary frequency modulation compensation amount delta P1 is determined according to a primary frequency modulation compensation amount function, a unit additional load compensation amount is determined according to the time of the delta n exceeding a dead zone limit value, and the unit load compensation amount delta P is the sum of the unit normal primary frequency modulation compensation amount delta P1 and the unit additional load compensation amount delta P3. The beneficial effects of the present invention are that: the primary frequency modulation requirement of the power grid for a unit can be satisfied effectively, and the frequency modulation and peak modulation demands are satisfied while the situation that the unit does not act mistakenly, does not refuse to act and does not act frequently is guaranteed.