METHOD OF CONTROLLING TOTAL BALLAST LOAD IN AUTONOMOUS MULTI-MODULAR ELECTRIC POWER PLANT BASED ON STIRLING ENGINES Russian patent published in 2017 - IPC H02P9/04 H02P9/30 H02J9/00 F02G1/43 H02M7/527 

FIELD: energy.

SUBSTANCE: invention relates to power engineering and electrical engineering and can be used in devices for conversion of thermodynamic energy into electric energy, used as a source of electric power in power supply systems of independent electrical power systems. Method of controlling total ballast load in autonomous multi-modular electric power generation plant based on Stirling engines, comprising m generation modules, each of which includes free piston Stirling engine with integrated linear generator and rectifier, outputs of which are connected in parallel and form a DC bus, to which are connected accumulator battery, payload and a common unit of ballast load consists in following: measuring voltages and currents of each linear generator and payload, further, based on measured values of voltages and currents of each linear generator, calculating active power with subsequent summation; calculating current value of payload power, generating a signal of ratio of calculated payload power to total power of linear generators, comparing measured value of output voltage of payload with reference voltage, processing resultant signal by means of unit of correcting device on basis of proportional-integrating regulator; summation of output signal of proportional-integrating regulator with a signal of ratio of calculated load power to total power of generators, forming an error signal, transmitted to one of inputs of a comparator, and to other comparator input is transmitted stepped ramp voltage, formed by an event manager of a DSP controller. At output of comparator is formed a wide-pulse modulated signal, which is transmitted to transistor control driver of ballast load.

EFFECT: high dynamic accuracy and stability of wide-pulse controller of common unit of ballast load with simultaneous provision of stability of voltage at DC bus in transient and steady-state operating modes of autonomous power supply system.

3 cl, 5 dwg