Photovoltaic charging station coordination controller

A technology for coordinating controllers and charging stations, applied in charging stations, photovoltaic power generation, electric vehicle charging technology, etc., can solve problems such as the impact on distribution network operation, reduce operating pressure, reduce pressure, improve stability and economy Effect

Inactive Publication Date: 2019-02-05
STATE GRID CORP OF CHINA +1
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Problems solved by technology

However, the grid-connected operation of the micro-grid will inevitably affect the operation of the distribution network. How to not only meet the demand for charging load power, but also improve the operation of the distribution network and achieve the purpose of peak load reduction and valley filling is the key to the control of the micro-grid for optical storage charging. main problems facing

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  • Photovoltaic charging station coordination controller
  • Photovoltaic charging station coordination controller
  • Photovoltaic charging station coordination controller

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Embodiment Construction

[0017] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0018] figure 1 A topology of photovoltaic storage charging microgrid is described. The photovoltaic power generation system is connected to the DC bus through a DC / DC converter as the main power generation unit of the system;

[0019] The energy storage system is connected to the DC bus through a bidirectional DC / DC converter. As a system energy storage unit, it is the main unit for regulating the power balance of the micro-grid system and adjusting the peak and valley filling of the distribution network;

[0020] The distribution network is connected to the DC bus through a bidirectional DC / AC converter. On the one hand, when the power demand of the micro-grid is large, it provides electric energy to the charging load in the micro-grid; Receiving the electric energy generated by the microgrid, eliminating peaks and filling valleys.

[0021] In the optical storage ...

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Abstract

The present invention discloses a photovoltaic charging station coordination controller. A photovoltaic generation system is connected with a direct current bus through a DC / DC converter, an energy storage system is connected with the direct current bus through a dual-way DC / DC converter, a power distribution network is connected with the direct current bus through a dual-way DC / AC converter, in an optical storage and charge power grid system, a microgrid system is connected with the photovoltaic generation system, the energy storage system, the power distribution network and a charge load through a CAN bus to collect operation state and electric quantity information of each unit of the microgrid, the control signals output by each unit are respectively acted on the DC / DC converter, the dual-way DC / DC converter and the dual-way DC / AC converter. The photovoltaic charging station coordination controller can improve the economic benefit and the environmental benefit in the charging station construction and operation process.

Description

technical field [0001] The invention relates to the field of photovoltaic charging and microgrid control, in particular to a photovoltaic charging station coordination controller. Background technique [0002] In response to the social call of "environment-friendly and energy-saving", electric vehicles have emerged as the times require and are vigorously developed. Therefore, charging stations need to be established to increase the source of power for electric vehicles. At present, the establishment of large and medium-sized charging stations requires the construction of distribution networks around them to provide electric energy for charging piles. The charging time of users is uncertain, which makes it difficult to control the distribution network, which may increase the difficulty of grid dispatching, or cause grid voltage fluctuations, etc.; at the same time, most of the power of charging stations comes from fossil fuel power generation, and the carbon emissions are not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/32B60L53/64
CPCH02J3/383H02J3/32H02J3/003Y02E10/56Y02E70/30Y02T10/70Y02T10/7072Y02T10/72Y02T90/12
Inventor 蒋勃谭敏戈蒋琪李建兴杨智郝伟朱岸明尚宏苟秦晋杨柳李尧韩波彭芳井刚何凯薛晶戈弓薛军贾静高彦骋吴建民陈晓靳媛李品超
Owner STATE GRID CORP OF CHINA
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