Suboptimal energy management system for hybrid electric tram considering uncertainty
An energy management system and a hybrid technology, which are applied in the field of suboptimal energy management systems for hybrid electric trams, can solve the problems affecting the running performance and system energy efficiency of trams, the failure of energy management systems, and the need for improvement in robustness of energy management systems. And other issues
Active Publication Date: 2020-05-19
山东斯博科特电气技术有限公司
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Problems solved by technology
On the other hand, the design process of tram energy management system with multi-objective collaborative optimization is very time-consuming and is more suitable for offline performance evaluation of trams rather than real-time operation control process
In addition, stochastic processes such as auxiliary system switching and tram load uncertainty will significantly affect the scheduling operation of the energy management system. Has a significant impact, affecting tram performance and system energy efficiency
In particular, for fuel cell hybrid electric trams, the impact of operating condition mismatch is further exacerbated by the differential power mismatch caused by the dynamic response of the fuel cell system
At the same time, the influence of time-varying characteristics such as system performance attenuation and operating environment uncertainty may lead to the failure of the energy management system under optimal configuration conditions. Therefore, the robustness of the energy management system needs to be improved urgently
[0007] To sum up, how to provide the robustness of the hybrid energy management system is an important issue in the design of the fuel cell hybrid electric tram energy management system, and the design of the existing energy management system has not effectively taken into account the It is also difficult to effectively evaluate the influence of random uncertainty in the operation process by the direct power prediction method
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[0034] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing and specific embodiment:
[0035] combine Figure 1 to Figure 3 , a suboptimal energy management system 10 for hybrid electric trams considering uncertainties, including a suboptimal energy management unit 100 for hybrid electric vehicles, a fuel cell system unit 200, a lithium battery system unit 300, and a supercapacitor system Unit 400 and tram traction drive system unit 500.
[0036] Among them, the hybrid suboptimal energy management unit 100 that takes uncertainty into account is electrically connected to the fuel cell system unit 200, the lithium battery system unit 300 and the supercapacitor system unit 400 respectively, and the fuel cell system unit 200, the lithium battery system unit 300 and the The supercapacitor system units 400 are all electrically connected to the tram traction drive system unit 500 . like figure 1 shown.
[0037] ...
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The invention provides a hybrid power tramcar suboptimum energy management system taking uncertainty into account. The hybrid power tramcar suboptimum energy management system comprises a hybrid powersuboptimum energy management unit taking the uncertainty into account, a fuel cell system unit, a lithium battery system unit, a supercapacitor system unit and a tramcar traction driving system unit.The hybrid power suboptimum energy management unit taking the uncertainty into account is electrically connected with the fuel cell system unit, the lithium battery system unit and the supercapacitorsystem unit, and the fuel cell system unit, the lithium battery system unit and the supercapacitor system unit are all electrically connected with the tramcar traction driving system unit. On the basis that the random uncertainty of a tramcar in the operating process is subjected to adaptive estimation, through multi-energy source real-time power adaptive distribution of the fuel cell hybrid power energy management system, it is guaranteed that the hybrid power tramcar works at the approximately-minimum equivalent hydrogen consumption state, multi-energy source performance degradation equalization is achieved, and the cycle service life of the hybrid power system is prolonged.
Description
technical field [0001] The invention relates to the field of hybrid electric tram energy management, in particular to a hybrid electric tram suboptimal energy management system considering uncertainty. Background technique [0002] As an important carrier of hydrogen power generation, proton exchange membrane fuel cells can provide clean electricity for social and economic development with its advantages of environmental protection and high efficiency. With the continuous development of commercial proton exchange membrane technology, fuel cell systems have broad application prospects in many fields such as combined heat and power, power station systems, electric vehicles, and rail transit. In particular, with the increasing power density and cycle life of integrated high-power fuel cell modules, they have great potential for high-performance hybrid electric tram applications. [0003] Due to the relatively slow dynamic response characteristics of the fuel cell system, an en...
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IPC IPC(8): B60L50/70B60L50/60B60L50/40B61C3/02H02J7/00
CPCB60L58/10B60L58/30B61C3/02H02J7/00H02J7/345Y02T10/70Y02T30/00Y02T90/40
Inventor彭飞赵元哲张亚林李小鹏何茂鑫庄哲
Owner山东斯博科特电气技术有限公司