Improve the capacity of gas generator with capacitive load;

对负载进行改造，使容性负载的超前功率因数变大。

The load is reformed to increase the leading power factor of capacitive load.

1、提高发电机组带容性负载能力

1. Improve the capacitive load capacity of generator set

根据容性负载对发电机和调压器产生的影响，我们可以从以下几个方面来提高发电机组带容性负载能力：

According to the influence of capacitive load on generator and voltage regulator, we can improve the capacitive load capacity of generator set from the following aspects:

1.1 容量放大设计

1.1 capacity amplification design

对于同功率发电机组，发电机容量越大，其带容性负载能力将更强。由于数据项目中容性负载存在，因此在选择数据发电机组时，发电机容量将会是非常重要的参数之一。

For the same power generator set, the larger the generator capacity is, the stronger the capacitive load capacity will be. Due to the existence of capacitive load in the data center project, the generator capacity will be one of the very important parameters when selecting the generator set in the data center.注：发电机容量参数与发电机温升息息相关，只有在相同温升条件下比较发电机容量才有意义。不同温升情况下将不能比较发电机容量的大小。

Note: the generator capacity parameter is closely related to the generator temperature rise. It is meaningful to compare the generator capacity only under the same temperature rise conditions. The generator capacity cannot be compared under different temperature rise conditions.

1.2 加强发电机散热

1.2 strengthen heat dissipation of generator

一方面，从安装和应用角度，在安装发电机组时，保障充分的冷空气冷却发电机；另一方面，从发电机设计和生产的角度，发电机应通过提高空气冷却发电机散热效率的通风结构和方法，使冷却空气从发电机的若干个进风口进入定子和转子之间的气隙，再经过由铁芯与绕组的间隙形成的通风道,进入导流板与铁芯背面之间形成的扁平流道，之后流入发电机内部空腔，再经由出风口流出。

On the one hand, from the perspective of installation and application, ensure sufficient cold air to cool the generator when installing the generator set; On the other hand, from the perspective of generator design and production, through the ventilation structure and method of improving the heat dissipation efficiency of air-cooled generator, the generator should make the cooling air enter the air gap between stator and rotor from several air inlets of the generator, and then enter the flat flow channel formed between deflector and the back of iron core through the ventilation channel formed by the gap between iron core and winding, Then it flows into the internal cavity of the generator and then flows out through the air outlet.

冷却空气通过扁平流道时,能以较高速度横掠铁芯背面，从而加强了铁芯背面的散热,有效降低了铁芯和绕组的温度。使用导热性良好的材料制成导流板,并增大了散热面积，有效提升了散热的效果。

When the cooling air passes through the flat channel, it can cross the back of the iron core at a high speed, so as to strengthen the heat dissipation on the back of the iron core and effectively reduce the temperature of the iron core and winding. The deflector is made of materials with good thermal conductivity, which increases the heat dissipation area and effectively improves the heat dissipation effect.

1.3 智能式电压调压器

1.3 intelligent voltage regulator

发电机在带容性负载时，容性负载将会产生励磁电流，容性负载越大，超前功率因数越小，其产生助磁电流越大。

When the generator is equipped with capacitive load, the capacitive load will produce excitation current. The larger the capacitive load is, the smaller the leading power factor is, and the larger the flux current is.

即使在调压器给出的励磁电流为0时，发电机励磁电流都足够大，此时调压器失去了调压的功能，发电机电压将上下波动，不受控制。因此智能式电压调压器将能优化发电机的调压功能，并加强发电机的带容性负载能力。

Even when the excitation current given by the voltage regulator is 0, the excitation current of the generator is large enough. At this time, the voltage regulator loses the function of voltage regulation, and the generator voltage will fluctuate up and down without control. Therefore, the intelligent voltage regulator will optimize the voltage regulation function of the generator and strengthen the capacitive load capacity of the generator.

1.4 PM永磁励磁机

1.4 PM permanent magnet exciter

永磁励磁机将减小容性负载对励磁电流和调压的影响，从而加强发电机带容性负载能力。

Permanent magnet exciter will reduce the influence of capacitive load on excitation current and voltage regulation, so as to strengthen the capacity of generator with capacitive load.

1.5、发电机组控制系统

1.5 generator set control system

由于数据备用电源的可靠性是非常重要的，为了提高发电机组的可靠性，避免因为逆无功保护或失磁保护停机，将控制系统中的逆无功保护或失磁保护设定为警报，而取消停机保护的功能。保证发电机组即使在逆无功或失磁情况下也不会出现停机现象。保证数据系统备用电源的可靠性。

Since the reliability of the standby power supply in the data center is very important, in order to improve the reliability of the generator set and avoid shutdown due to reverse reactive power protection or loss of excitation protection, set the reverse reactive power protection or loss of excitation protection in the control system as alarm and cancel the shutdown protection function. Ensure that the generator set will not stop even under the condition of reverse reactive power or loss of excitation. Ensure the reliability of standby power supply of data center system.