1、 According to the fuel classification of engine, it can be divided into diesel generator set and composite fuel generator set

二、按照转速分类可分为高速、中速、低速柴油发电机组三、按照使用条件分类可分为陆用、船用、挂车式和汽车式柴油发电机组。其中陆用发电机组：包括移动式和固定式。陆用机组又可以分为普通型、自动化型、低噪音型、低噪音自动化型四种。四、按照发电机输出电压和频率分类可分为交流发电机组和直流发电机组。其中交流发电机组；包括中频40HZ和工频50HZ。对50HZ工频中小型发电机组的表定电压一般为400V；大型发电机的标定电压一般为6.3～10.5kV。五、按照同步发电机的励磁方式分类可分为旋转交流励磁机和静止励磁机。

2、 According to the speed classification, it can be divided into high-speed, medium speed and low-speed diesel generator sets. Among them, land use generator sets include both mobile and fixed types. Land use units can be divided into four types: ordinary type, automated type, low noise type, and low noise automated type. 4、 According to the classification of generator output voltage and frequency, it can be divided into AC generator sets and DC generator sets. Among them, AC generator sets; Including intermediate frequency 40HZ and power frequency 50HZ. The rated voltage for 50HZ power frequency small and medium-sized generator sets is generally 400V; The rated voltage of large generators is generally 6.3-10.5kV. 5、 According to the excitation methods of synchronous generators, they can be classified into rotating AC exciters and static exciters.

1、旋转交流励磁机励磁系统包括交流励磁机静止整流器励磁系统而后无刷励磁系统

1. The excitation system of a rotating AC exciter includes a static rectifier excitation system followed by a brushless excitation system

2、静止励磁机励磁系统包括电压源静止励磁机励磁系统、交流侧串联复合电压源静止励磁机励磁系统和谐波（或基波）辅助绕组励磁系统六、按用途分类1、常用机组这类发电机组常年运行，一般设在远离电力网（或称市电）的地区或工矿企业附近，以满足这些地方的施工、生产和生活用电。在经济发展比较快的地区，由于电力网的建设跟不上用户的需求而设立建设周期短的常用柴油发电机组来满足用户的需要。这类发电机组一般容量较大，对非恒定负载提供连续的电力供应，对连续运行的时间没有限制，并允许每12h内有1 h过负载供电时间，过负荷能力为额定输出功率的10%。这类机组因其运行时间较长、负载较重，相对于本机极限功率的许用功率被调较低点。

2. The static exciter excitation system includes a voltage source static exciter excitation system, an AC side series composite voltage source static exciter excitation system, and a harmonic (or fundamental) auxiliary winding excitation system. It is classified according to its purpose. 1. Commonly used units, such as generator sets, operate year-round and are generally located in areas far from the power grid (or city power) or near industrial and mining enterprises to meet the construction, production, and daily electricity needs of these areas. In areas with rapid economic development, because the construction of the power network cannot keep up with the needs of users, common diesel generator sets with short construction period are set up to meet the needs of users. This type of generator set generally has a large capacity and provides continuous power supply for non constant loads. There is no limit to the duration of continuous operation, and it allows for 1 hour of overload power supply every 12 hours, with an overload capacity of 10% of the rated output power. Due to their long operating time and heavy load, this type of unit has its allowable power adjusted to a lower point relative to the maximum power of the unit.

2、备用机组在通常情况下用户所需电力由市电供给，当市电限电拉闸或其他原因中断供电时，为保证用户的基本生产和生活而设置的发电机组。这类发电机组常设在电信部门、医院、市电供应紧张的工矿企业、机场和电视台等重要用电单位。这类机组随时保持备用状态，能对非恒定负载提供连续的电力供应。

2. The backup unit is usually supplied by the mains power supply, which is set up to ensure the basic production and daily life of users when the mains power is cut off or interrupted due to other reasons. This type of generator set is permanently installed in important electricity consuming units such as telecommunications departments, hospitals, industrial and mining enterprises with tight electricity supply, airports, and television stations. This type of unit maintains a standby state at all times and can provide continuous power supply to non constant loads.

3、应急机组对市电突然中断将造成较大损失或人身事故的用电设备，常设置应急发电机组对这些设备紧急供电，如高层建筑的消防系统、疏散照明、电梯、自动化生产线的控制系统、重要的通信系统以及正在跟病人做重要手术的医疗设备等。这类机组应能在市电突然中断时，能迅速启动运行，并在短时间内向负载提供稳定的交流电源，以保证及时地向负载供电，这种机组自动化程度要求较高。

3. Emergency generator sets are often set up to provide emergency power to electrical equipment that may cause significant losses or personal accidents due to sudden interruption of power supply, such as fire protection systems in high-rise buildings, evacuation lighting, elevators, control systems for automated production lines, important communication systems, and medical equipment undergoing important surgeries with patients. This type of unit should be able to quickly start and operate in the event of a sudden interruption of mains power, and provide stable AC power to the load in the shortest possible time to ensure timely power supply to the load. This type of unit requires a high degree of automation.

七、按照控制和操作的方式分类可分为现场操作发电机组、隔室操作发电机组和自动化发电机组。

7、 According to the classification of control and operation methods, it can be divided into on-site operation generator sets, compartment operation generator sets, and automated generator sets.

1、现场操作发电机组操作人员在机房内对发电机组进行启动、合闸、调速、分闸、停机等操作。这类发电机组运行时所产生的振动、噪声、油雾和废气对操作人员的身体有不良影响。2、隔室操作发电机组这类发电机组的机房和控制室分开设置，操作人员在操作室内对机房内的柴油发电机组进行启动、调速、停机等操作，并对机组的运行参数进行监测，对机房内的辅机也实施集中控制。隔室操作可改善操作人员的工作环境。3、自动化发电机组经过各有关单位的多年研究，柴油发电机组的自动化可实现无人值守，其中包括机组自启动、自动调压、自动调频、调载、自动并车、按负荷大小自动增减机组、自动处理故障、自动记录打印机组可在市电中断后10-15s自动启动，代替市电进行供电。

1. The on-site operation personnel of the generator set start, close, regulate speed, open, and stop the generator set in the machine room. The vibration, noise, oil mist, and exhaust gas generated during the operation of such generator sets have adverse effects on the health of operators. 2. The machine room and control room for the generator set in the compartment are set separately. The operator can start, speed control, stop and other operations for the diesel generator set in the machine room in the operation room, monitor the operating parameters of the unit, and implement centralized control for the auxiliary machine in the machine room. Chamber operation can improve the working environment for operators. 3. After years of research by relevant units, the automation of automatic generator sets can realize unattended operation, including unit self start, automatic voltage regulation, automatic frequency modulation, load regulation, automatic parallel operation, automatic increase and decrease of units according to load size, automatic fault handling, and automatic recording printer set, which can automatically start 10-15s after the mains power interruption to replace the mains power supply.

八、按照自动化功能分类可分为基本型柴油发电机组、自动启动柴油发电机组和微型机自动控制柴油发电机组。

8、 According to the classification of automation functions, it can be divided into basic diesel generator set, automatic start diesel generator set and microcomputer automatic control diesel generator set.

1、基本型柴油发电机组基本型柴油发电机组较为常见，它由柴油机、封闭式水箱、油箱、消声器、同步交流发电机、励磁电压调节装置、控制箱、联轴器和底盘等组成。基本型柴油发电机组具有电压和转速自动调节功能。一般可做为主用电源或备用电源。

1. Basic type diesel generator set Basic type Diesel generator set is common, which is composed of diesel engine, closed water tank, oil tank, muffler, synchronous alternator, excitation voltage regulator, control box, coupling and chassis. The basic diesel generator set has the function of automatic regulation of voltage and speed. It can generally be used as the main power supply or backup power supply.

2、自动启动柴油发电机组自动启动柴油发电机组是在基本型柴油发电机组的基础上增加自动控制系统。它具有自动启动的功能。当市电突然停电时，机组能自动启动、自动切换、自动运行、自动送点和自动停机等功能；当机油压力过低、机油温度或冷却水温度过高时，能自动发出声光告警信号；当机组超速时，能自动紧急停机，保护发电机组。

2. Automatic starting diesel generator set Automatic starting diesel generator set is an automatic control system added to the basic diesel generator set. It has an automatic start function. When there is a sudden power outage, the unit can automatically start, switch, operate, send points, and stop; When the oil pressure is too low, the oil temperature or the cooling water temperature is too high, it can automatically send out an audible and visual alarm signal; When the unit exceeds the speed limit, it can automatically emergency stop to protect the generator set.

3、微型机自动控制柴油发电机组微型机自动控制柴油发电机组由柴油机、三相无刷同步发电机、燃油自动补给装置、机油自动补给装置、冷却水自动补给装置及自动控制柜组成。自动控制应用可编程序控制器（PLC）控制。它除了具有自启动、自切换、自运行、自投入和自停机等功能外，并配有各种故障报警和自动保护装置。另外，它通过RS232通信接口，与主计算机连接，集中控制，能够遥控、遥信和遥测，实现无人值班的要求。

3. Microcomputer automatic control diesel generator set The microcomputer automatic control diesel generator set consists of a diesel engine, a three-phase brushless synchronous generator, an automatic fuel supply device, an automatic oil supply device, an automatic cooling water supply device and an automatic control cabinet. Automatic control applies programmable logic controller (PLC) control. It not only has functions such as self start, self switch, self operation, self input, and self stop, but also is equipped with various fault alarms and automatic protection devices. In addition, it is connected to the main computer through an RS232 communication interface for centralized control, capable of remote control, signaling, and telemetry, achieving the requirement of unmanned duty.