柴油发电机的基本结构是由柴油机和发电机组成，柴油机作动力带动发电机发电。柴油机曲轴旋转便带动发电机转动发电，发电机有直流发电机和交流发电机。柴油发电机组是柴油发动机与发电机（通常是交流发电机）的组合以产生电能。 柴油压燃式发动机通常设计成在燃油上运行，但是有一些类型适用于其他液体燃料或天然气。发电机组是将其他形式的能源转换成电能的机械设备。
这套系统体积小、元件少（每一种信号由一个独立的电路板转化）、布局集中、便于监视，而且有一部分温度（如缸套水温度、润滑油温度等）的控制采用PLC微电脑控制，自动化程度比较高。润滑油压力和缸套水压力的控制就地直接采用压力开关作用于跳机。尽管如此，该系统仍有一定的局限性。对于排气温度而言，只有单缸和平均温度的差值报警，没有单缸温度超过设定值的报警，温度无法实时显示。传统的自动记录仪需要大量的打印纸，打印间隔太长，多种曲线挤在一起不易辩别，且无法数字化等。几次涡轮增压器损坏就是因为没有及时发现温度上升趋势致使气阀损坏而打坏涡轮增压器的。
The basic structure of a diesel generator consists of a diesel engine and a generator, with the diesel engine driving the generator to generate electricity. The rotation of the crankshaft in a diesel engine drives the generator to generate electricity, which can be divided into DC and AC generators. A diesel generator set is a combination of a diesel engine and a generator (usually an AC generator) to generate electrical energy. Diesel compression ignition engines are typically designed to run on fuel, but there are some types that are suitable for other liquid fuels or natural gas. A generator set is a mechanical device that converts other forms of energy into electrical energy.
This system has a small size, few components (each signal is converted by an independent circuit board), centralized layout, easy monitoring, and some temperature control (such as cylinder liner water temperature, lubricating oil temperature, etc.) is controlled by PLC microcomputer, with a relatively high degree of automation. The control of lubricating oil pressure and cylinder liner water pressure is directly applied locally through pressure switches to trip the machine. However, the system still has certain limitations. For exhaust temperature, only the difference between single cylinder and average temperature alarm is triggered, and there is no alarm for single cylinder temperature exceeding the set value, so the temperature cannot be displayed in real time. Traditional automatic recorders require a large amount of printing paper, long printing intervals, multiple curves squeezed together that are difficult to distinguish, and cannot be digitized. Several times the turbocharger was damaged because the temperature rise trend was not detected in time, resulting in valve damage and damaging the turbocharger.
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