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Parallel control system and method for diesel generator power supply and distribution system

A technology for diesel generators and power supply and distribution systems, applied in control systems, control generators, electrical components, etc., can solve problems such as loss, parallel operation, and failure to start diesel generator sets, and achieve flexible power supply, practical and complex power consumption environmental effects

Active Publication Date: 2019-07-12
上海唐银投资发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is a single point of failure in the parallel control system of conventional diesel generator sets. When a fault occurs somewhere in the control system, the diesel generator set cannot be started, paralleled, and output electric energy, so that the diesel generator set cannot play the role of emergency protection, and more may result in immeasurable losses

Method used

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  • Parallel control system and method for diesel generator power supply and distribution system
  • Parallel control system and method for diesel generator power supply and distribution system
  • Parallel control system and method for diesel generator power supply and distribution system

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Embodiment

[0025] The overall system architecture framework of this embodiment is as follows figure 1 As shown, 13 diesel generator sets are paralleled, corresponding to the parallel busbars YJ-A1 and YJ-B1, and the circuit breakers (G1-AH1~G1-AH13, G1-BH1~G1-BH13) on the two parallel busbars are switched on and off The gate is controlled by the parallel machine control system. Under normal conditions, the outlet circuit breaker at the generator end, the parallel incoming circuit breaker on the parallel bus (G1-AH1~G1-AH13, G1-BH1~G1-BH13), the parallel output circuit breaker (G1-AH15, G1-BH16) are all in the opening state. 13 diesel generator sets are paralleled, and a grounding resistance cabinet is installed, and the common terminal of the generators is grounded through a small resistance grounding resistance cabinet. Each generator parallel busbar has one feeder output to the 10kV mains section busbar. When these two circuit breakers (G1-AH15, G1-BH16) are in the "remote" working p...

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Abstract

The invention relates to a parallel control system and method for a diesel generator power supply and distribution system. The system comprises a plurality of diesel generators which are connected toa programmable logic controller PLC, the output end of each of the diesel generators passes a generator outlet circuit breaker and a parallel wire inlet circuit breaker to be connected to two parallelbuses, a contact breaker and an isolated handcart are set between the two parallel buses, the two parallel buses are connected to two corresponding mains supply buses through a parallel output circuit breaker and a mains supply side wire inlet circuit breaker, a contact circuit breaker and an isolated handcart are set between the two mains supply buses, the two mains supply are connected to 10kVmains supply through a main wire inlet circuit breaker, wire outlet sides of the two mains supply buses pass a wire outlet circuit breaker and then feed a load, and a common end of the diesel generator is connected to a grounding resistor and is grounded. Compared with the prior art, the invention has the advantages of flexible control, energy saving and low cost.

Description

technical field [0001] The invention relates to the technical field of diesel generator power supply and distribution systems, in particular to a parallel control system and method for diesel generator power supply and distribution systems. Background technique [0002] Reliable and reasonable parallel control logic of diesel generator sets is the core to ensure that diesel generator sets can work normally when the common power supply fails as an emergency backup power supply. [0003] The primary power line of a conventional diesel generator set is a single-bus system. The invention proposes a parallel control strategy for the system in which the primary power line of the diesel generating set is a double busbar. There is a single point of failure in the parallel control system of conventional diesel generator sets. When a fault occurs somewhere in the control system, the diesel generator set cannot be started, paralleled, and output electric energy, so that the diesel gen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/12H02P9/00
CPCH02J3/381H02J3/12H02P9/00
Inventor 姜云安史光伟鲁继东王五平姚雪飞王美芳谢苑祝田田王海峰张毅翔王亮杜松林群聪章礼国浦延民王翔刘海春
Owner 上海唐银投资发展有限公司
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