An Intelligent Reactive Power Compensation System

Abstract

The invention provides an intelligent type reactive compensation system. The intelligent type reactive compensation system comprises a remote intelligent communicator, a control cabinet and a compensation cabinet, wherein the control cabinet comprises an intelligent type controller, a high-voltage circuit breaker, a high-voltage isolating switch and a high-voltage electrified display device; the compensation cabinet comprises a microcomputer protection device, a vacuum contact device, a lightning arrester, a current transformer, a discharging coil, parallel capacitors and serial reactors; the high-voltage electrified display device is arranged at the wire incoming end of the high-voltage isolating switch, and the wire outgoing end of the high-voltage isolating switch is connected at the wire incoming end of the high-voltage circuit breaker; the wire outgoing end of the high-pressure circuit breaker is connected at the wire incoming end of the vacuum contact device; the wire outgoing end of the vacuum contact device is connected with the current transformer and the lightning arrester; the lightning arrester is arranged at the wire outgoing end of the switch; the wire outgoing end of the current transformer is connected with the wire incoming ends of the parallel capacitors and the discharging coil; and the wire outgoing ends of the parallel capacitors and the discharging coil are connected with the serial reactors; and remote and intelligent communication interfaces are arranged on the intelligent type controller and the microcomputer protection device. The intelligent type reactive compensation system provided by the invention has the advantage that by mutual matching of related protections, the protection reliability and the intelligentization degree of the device are improved.

Description

technical field [0001] The invention relates to reactive power compensation of power distribution network, in particular to an intelligent reactive power compensation system. Background technique [0002] In the traditional cabinet-type automatic switching capacitor compensation system, the primary components are randomly arranged in the cabinet without modularization and serialization, and are directly installed on the busbar at the outlet end of the main cabinet. [0003] The traditional cabinet type automatic switching compensation system has the following disadvantages: [0004] 1. The protection of the traditional cabinet-type automatic switching capacitor compensation system is not perfect, and the reliability is poor. The traditional cabinet-type automatic switching high-voltage reactive power compensation system only has over-current, over-voltage, under-voltage, and open triangle protection, and the quick-break protection is reliable. For the protection of the supe...

AI Technical Summary

Problems solved by technology

[0004] 1. The protection of the traditional cabinet-type automatic switching capacitor compensation system is not perfect, and the reliability is poor. The traditional cabinet-type automatic switching high-voltage reactive power compensation system only has over-current, over-voltage, under-voltage, and open triangle protection, and the quick-break protection is reliable. Superior switchgear protection, the system itself does not have quick-break protection and harmonic protection, so the protection reliability is not high

[0005] 2. The traditional cabinet-type automatic switching capacitor compensation system lacks intelligence, has no relevant communication and monitoring interfaces, and cannot realize the intelligent requirements of "four remotes"

[0006] 3. The traditional cabinet-type automatic switching capacitor compensation system, the busbar connection form between single groups is connected by insulator hanging busbars, and adopts a semi-closed structure, so that the IP protection level of the traditional cabinet-type automatic switching capacitor compensation system is not high

[0007] 4. The traditional cabinet-type automatic switching capacitor compensation system does not have an independent microcomputer protection unit inside the system. The protection is centralized and not independent. When a single group fails, the entire group is often cut off, which affects the operation of the normal group system, so that the traditional cabinet The protection reliability of automatic switching capacitor compensation system is unstable

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