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Power distribution method and system for parallel fuel cell power system

A fuel cell system and fuel cell technology, applied in the parallel operation of DC power supply, electrical components, circuit devices, etc., to achieve the effects of easy implementation, low cost, and strong anti-interference ability

Active Publication Date: 2021-02-12
ZHUZHOU NAT INNOVATION RAILWAY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention lies in: aiming at the technical problems existing in the prior art, the present invention provides a power distribution method and system for a parallel fuel cell power system that ensures optimal overall system efficiency

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  • Power distribution method and system for parallel fuel cell power system
  • Power distribution method and system for parallel fuel cell power system
  • Power distribution method and system for parallel fuel cell power system

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Embodiment Construction

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0033] like figure 1 As shown, the power distribution method of the parallel fuel cell power system in this embodiment includes steps:

[0034] 1) Obtain the optimal power value at the maximum efficiency of each single-stack fuel cell system;

[0035] 2) When performing power distribution, each single-stack fuel cell system is turned on step by step until the total output power of the multi-stack fuel cell system meets the load power; the actual output power of each single-stack fuel cell system is the corresponding optimal power value.

[0036] According to the load demand power value, the multi-stack fuel cell power system of the present invention takes the comprehensive efficiency of the whole power system as the target, finds the output power value when the optimal efficiency (ie maximum efficiency), and realizes the stack power step by s...

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Abstract

The invention discloses a power distribution method and system for a parallel fuel cell power system. The method comprises the following steps: 1) obtaining an optimal power value of each single-pilefuel cell system at the maximum efficiency; and 2) during power distribution, starting each single-pile fuel cell system one by one until the total output power of each single-pile fuel cell system meets the load power, wherein the actual output power of each single-pile fuel cell system is the corresponding optimal power value. The method and the system have the advantages of guaranteeing that the whole system is in the optimal operation state, guaranteeing that the efficiency of the whole system is optimized, and being high in anti-interference capacity, easy to implement, low in cost and the like.

Description

technical field [0001] The present invention mainly relates to the technical field of fuel cells, in particular to a power distribution method and system of a parallel fuel cell power system. Background technique [0002] As a new type of power generation device with high efficiency and environmental protection, fuel cell has been widely used in various fields. For low-power applications, a single fuel cell system can meet the power requirements, with simple control and relatively strong reliability. However, in the face of high-power applications such as trams and heavy ships, the output power of a single fuel cell cannot meet the overall load. Power requirements, and as the output power level increases, the configuration of the entire fuel cell power system is relatively complicated. Once a failure occurs, the overall reliability of the system cannot be guaranteed. In response to such situations, multiple fuel cells are currently connected in parallel to achieve high-powe...

Claims

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Application Information

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IPC IPC(8): H02J1/10
CPCH02J1/109Y02E60/50H02J2300/30H02J3/46
Inventor 李林江志强赵广乐黄志华赵凯江大发肖黎亚方昕
Owner ZHUZHOU NAT INNOVATION RAILWAY TECH CO LTD
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