Prefabricated warehouse-type high-voltage reactive power compensation device and reactive power compensation method

Abstract

The invention discloses a prefabricated cabin type high-voltage reactive compensation device and a reactive supplementation method. A prefabricated cabin is provided with a ventilation device, a lighting device, an air-conditioner, an image monitoring device and a fire warning and firefighting device, wherein a distribution cabinet is internally provided with a standard high-voltage primary interface and a power source interface, and supplies power to the prefabricated cabin; a wire concentration cabinet is connected to the distribution cabinet, the ventilation device, the lighting device, the air-conditioner, the image monitoring device and the fire warning and firefighting device to improve the safety of the reactive compensation device and solve the problem of safety hazard as the incoming wires of the primary circuit of the existing box type high-voltage reactive compensation device are fussy; the wire concentration cabinet is internally provided with a standard secondary interface and an optical interface, and realizes communication with a station control layer by acquiring analogue signal amount inside the distribution cabinet and converting the analogue signal amount into an optical signal and an optical signal, so that the problems of fussy interfaces of the secondary circuit interface and existence of signal attenuation due to the adoption of the analogue signal long-distance transmission are solved; a console is arranged, so that a man-machine interaction function is achieved, the existing state of the device is known comprehensively, and convenience is brought to daily control and maintenance.

Description

technical field [0001] The invention relates to a high-voltage reactive power compensation device, in particular to a prefabricated warehouse-type high-voltage reactive power compensation device and a reactive power compensation method. Background technique [0002] The existing box-type high-voltage reactive power compensation device is an important reactive power compensation device. However, in the actual operation process, the primary line often adopts overhead incoming lines or separate lines from power distribution cabinets. The lines are complicated, affecting the appearance and safety. Hidden danger. The secondary line is directly led to the power distribution room by the capacitor device, the interface is complicated, and there is signal attenuation in the long-distance transmission of analog signals. In addition, the traditional box-type high-voltage reactive power compensation device does not have fire protection, monitoring and other equipment, poor auxiliary fa...

AI Technical Summary

Problems solved by technology

[0002] The existing box-type high-voltage reactive power compensation device is an important reactive power compensation device. However, in the actual operation process, the primary line often adopts overhead incoming lines or separate lines from power distribution cabinets. The lines are complicated, affecting the appearance and safety. Hidden danger

The secondary line is directly led to the power distribution room by the capacitor device, the interface is complicated, and the long-distance transmission of analog signals has signal attenuation

In addition, the traditional box-type high-voltage reactive power compensation device does not have fire protection, monitoring and other equipment, poor auxiliary facilities, and does not have human-computer interaction functions. The on-duty personnel cannot fully understand the current status of the device in real time, let alone trace the historical status of the device ; and the box is thin and variable in size, requiring a lot of on-site installation and commissioning work, which can no longer meet the needs of the development of intelligent power transmission and transformation stations

[0003] During the actual operation of the existing high-voltage reactive power compensation device, the PCS (protection and measurement and control unit) is installed in the power distribution room as the interval layer, and the TA (current transformer), TV (voltage transformer) device and switch are used as the process layer. The compensation device is placed in the primary equipment site as the main primary equipment, which makes the line laying complicated. The control command issued by the PCS can only reach the compensation device through long-distance transmission. There is signal attenuation, which is prone to failure and cause the protection device to malfunction or refuse to operate.

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