High-reliability double-path optical fiber system of unit cascaded high-voltage frequency converter
A high-voltage inverter and optical fiber system technology, applied in the field of high-voltage inverters, can solve the problems of optical fiber communication tripping and shutdown, high reliability requirements of high-voltage inverters, and a large proportion of optical fiber communication failures, so as to improve the safe and stable operation of equipment. time, effectively locate the point of failure, and avoid Fibre Channel failures
Active Publication Date: 2019-07-05
合肥尚锐电气有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to provide a high-reliability dual-channel optical fiber system for unit-cascaded high-voltage inverters, which solves the problem that unit-cascaded high-voltage inverters have multiple identical power units, and the power units communicate with the main controller through optical fibers; High-voltage inverters have high requirements on reliability, and they will trip and shut down when fiber optic communication fails; in the actual operation process, fiber optic communication failures account for a relatively large proportion of various failures
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[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0022] see figure 1 As shown, the present invention is a high-reliability dual-channel optical fiber system with cascaded high-voltage frequency converters. The system includes a main controller unit, a power unit, an optical fiber unit, and a circuit breaker unit. The power unit is connected to the end of the optical fiber unit , the starting end of the optical fiber unit is connected to the main controller unit, and the circuit breaker unit is set on both sides of the optical f...
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The invention discloses a high-reliability double-path optical fiber system of a unit cascaded high-voltage frequency converter. The system comprises a main controller unit, a power unit, an optical fiber unit and circuit breaker units; the power unit is connected to the tail end of the optical fiber unit; the starting end of the optical fiber unit is connected to the main controller unit; and thecircuit breaker units are arranged on the two sides of the optical fiber unit. The fault check of an optical fiber line is improved through the arrangement of a double-row optical fiber circuit, so that the relatively high production loss due to tripping shutdown of the whole high-voltage frequency converter caused by a fault of any optical fiber path is avoided, the equipment cost is effectivelycontrolled, and the safe and stable operation duration of equipment is prolonged; and a double-path optical fiber is adopted, so that the problem of tripping caused by optical fiber faults can be basically avoided.
Description
technical field [0001] The invention relates to the technical field of high-voltage frequency converters, in particular to a high-reliability dual-channel optical fiber system of unit-cascaded high-voltage frequency converters. Background technique [0002] High-voltage frequency converters have a large market share and are widely used in industries such as cement, electric power, metallurgy, chemical industry, water affairs, environmental protection, papermaking, mining, and municipal water supply. The working environment is relatively poor, especially in industries such as cement, metallurgy, chemical industry, and mining. Due to the complex technology and structure of high-voltage frequency converters, the failure rate of the equipment is relatively high after several years of operation. The high-voltage motors driven by high-voltage frequency conversion are generally more important fans and pumps, which require continuous operation. The power unit communicates one-to-on...
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IPC IPC(8): H02M1/092
CPCH02M1/092
Inventor 马国良
Owner 合肥尚锐电气有限公司