| 摘要 |
FIELD: power supply facilities. ^ SUBSTANCE: invention relates to diesel electric sets operating to supply external variable load and including diesel engine and electric generator. Device is designed to control diesel engine included in set. Proposed method includes control of power by changing rate of fuel consumption at specific load on engine and maintaining engine shaft speed at preset accuracy. Change of power, fuel consumption rate and maintaining of constant speed of diesel engine shaft are provided discretely by regulating misses of fuel injection strokes according to standard firing order of diesel engine depending on value of power according to its external performance curve. In zone of maximum power, misses of fuel injection strokes into cylinders are not provided, and at approaching to values of power corresponding to rated conditions and up to idling, at constant speed of engine shaft, frequency of misses of fuel injection strokes into engine cylinders is increased. Simultaneously, diesel engine speed, excess air coefficient and cyclic delivery of fuel in operating engine cylinders according to previously chosen value and required fuel consumption at specific load are kept constant. Electronic speed governor of diesel engine uses input information of load and speed of engine shaft by values of effective load current of electric generator and diesel engine shaft speed meter. Invention contains description of device implementing proposed method. ^ EFFECT: provision of optimum, according to chosen criteria, operating processes in diesel engine under all operating conditions. ^ 3 cl, 1 dwg |
