A kind of output power control method of diesel generator set under pulse load
A diesel generator set, output power technology, applied in the direction of electric pulse generator circuit, energy storage element to generate pulses, etc., can solve the problems of slow response and poor adaptability of the control system
Active Publication Date: 2022-07-22
HARBIN INST OF TECH
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Problems solved by technology
[0005] The purpose of the present invention is to solve the problem that the control system responds slowly and has poor adaptability in the existing method of using the energy storage link to provide the pulsating power of the pulse load to reduce the impact on the shafting of the diesel engine, and proposes a diesel generator set output under pulse load. power control method
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specific Embodiment approach 1
[0042] Specific embodiment one: the following combination Figure 1 to Figure 3 Illustrating this embodiment, a method for controlling the output power of a diesel generator set under a pulse load described in this embodiment is realized by a diesel generator set output power control system, and the diesel generator set output power control system includes a three-phase PWM rectifier, Energy storage unit, DC-DC converter and controller;
[0043] The diesel generator set is used to output three-phase alternating current, the three-phase alternating current signal output end of the diesel generator set is connected to the signal input end of the three-phase PWM rectifier, and the signal output end of the three-phase PWM rectifier is connected to the energy storage unit, which is a storage unit. The signal output end of the three-phase PWM rectifier is also connected to the signal input end of the DC-DC converter, and the DC-DC converter converts the input current to supply power...
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A method for controlling the output power of a diesel generator set under a pulse load belongs to the technical field of power electronics. The invention solves the problems that the control system has a slow response and poor adaptability in the existing method of using the energy storage link to provide the pulse load of the pulse load to reduce the impact on the shaft system of the diesel engine. The controller of the present invention is used to control the output power of the three-phase PWM rectifier and the energy storage unit according to the power signal required by the pulse load, the voltage and current signal actually output by the three-phase PWM rectifier and the output current signal of the energy storage unit; the controller adopts The voltage power loop control strategy with inertia and damping controls the three-phase PWM rectifier to provide average power to the pulsed load, and the energy storage unit to provide the pulsed power to the pulsed load. The present invention is suitable for pulse load power supply.
Description
technical field [0001] The invention belongs to the technical field of power electronics. Background technique [0002] With the rapid development of high-power power electronic loads, such as high-speed railways, electroplating electric welding, radar devices and high-performance microprocessors, they all show increasingly significant load mutation characteristics, posing severe challenges to the power supply system . The typical form of pulsating load power supply system is based on the cascade system of diesel generator-uncontrolled rectifier-DC converter. [0003] The design of the conventional motor transmission mechanism is to use the effective load value to design and check the stiffness and strength under the assumption of steady-state operation. The shaft system of the diesel generator set is composed of the crankshaft part of the diesel engine, the large flywheel shaft and the generator rotor shaft, which are connected by a coupling. When the shafting of diesel ...
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IPC IPC(8): H02M9/02H02M9/04
CPCH03K3/53
Inventor 原仝云李浩昱张继红
Owner HARBIN INST OF TECH