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Complex line full parallel AT traction power supply system and method based on comprehensive energy

A traction power supply system and integrated energy system technology, applied in wind power generation, energy storage, resources, etc., can solve the problem of large output power fluctuations, affecting the operation scheduling and frequency stability of the power system, and integrated energy access to traction power supply system application research less problems

Active Publication Date: 2019-08-30
SOUTHWEST JIAOTONG UNIV +1
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  • Claims
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Problems solved by technology

[0005] However, at present, there are few researches on the application of comprehensive energy access to traction power supply system and its energy management methods
Due to the intermittent, fluctuating and random nature of photovoltaic power generation and wind power generation, their output power fluctuates greatly, and the traction load also has volatility and mobility, which makes the interaction between "source-grid-load" and affects the power supply. System operation scheduling and frequency stability

Method used

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  • Complex line full parallel AT traction power supply system and method based on comprehensive energy
  • Complex line full parallel AT traction power supply system and method based on comprehensive energy
  • Complex line full parallel AT traction power supply system and method based on comprehensive energy

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Embodiment Construction

[0059] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0060] In this example, see figure 1 As shown, the present invention proposes a double-line full-parallel AT traction power supply system based on comprehensive energy, including a double-line full-parallel AT traction power supply system 100 and an integrated energy system 200;

[0061]The double-track all-parallel AT traction power supply system 100 includes an AC grid 101, a V / X wiring traction transformer 102, an uplink catenary 103, an uplink rail 104, an uplink feeder 105, a downlink catenary 106, a downlink rail 107, and a downlink feeder 108. , AT station 109 and EMU 110; the high-voltage side of the V / X wiring traction transformer 102 is connected to the AC power grid 101, and the low-voltage side of the V / X wiring traction transformer 102 is respectively connect...

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Abstract

The invention discloses a complex line full parallel AT traction power supply system and method based on comprehensive energy. The system comprises a complex line full parallel AT traction power supply system and a comprehensive energy system; a photovoltaic array, a wind generating set and a fuel cell are connected in parallel to a direct current bus, electric-hydrogen storage is added to supplement power vacancy and peak load shaving, comprehensive energy is accessed into a traction power supply system through a reasonable mode, the power and the state of each microsource are detected in real time, the energy optimization management by taking the lowest total generation cost as a target is achieved based on a particle swarm optimization. The complex line full parallel AT traction powersupply system and method based on comprehensive energy can ensure the safety and stability of the system and the high reliability of power supply; the traction energy consumption structure is optimized, and the new energy consumption level is improved; and the method meets the development direction of national energy conservation and emission reduction, and reduces the power supply requirement ofthe electrified railway on the power system to a certain extent.

Description

technical field [0001] The invention belongs to the technical field of new energy traction power supply, and in particular relates to a multi-line full-parallel AT traction power supply system and method based on comprehensive energy. Background technique [0002] With the development of the global economy, the problems of environmental pollution and energy shortage are becoming more and more serious, and the world's energy is accelerating the transformation to diversification, cleanliness and low carbonization. The development of renewable energy, advanced and efficient energy utilization technology and energy diversification strategy have become the inevitable choice for the sustainable development of human society. Among them, solar power generation, wind power generation, hydrogen power generation and other new energy power generation technologies have become the new favorites of the times due to their clean and efficient advantages. [0003] In recent years, my country...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/32H02J3/24G06Q10/04G06Q10/06G06Q50/06
CPCH02J3/385H02J3/386H02J3/387H02J3/32H02J3/24G06Q10/04G06Q10/06312G06Q50/06H02J2203/20Y02E70/30Y02E10/56Y02E10/76Y02E60/36
Inventor 陈维荣王璇李奇许程鹏韩莹
Owner SOUTHWEST JIAOTONG UNIV
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