Comprehensive coordination control method of photovoltaic power generation microgrid having weather prediction function

A photovoltaic power generation and weather forecasting technology, applied in the field of power system, can solve problems such as poor stability, achieve stable power consumption, ensure power consumption experience, and solve the effect of intermittent
CN105680449AInactive Publication Date: 2016-06-15CHINA UNIV OF GEOSCIENCES (BEIJING)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF GEOSCIENCES (BEIJING)
Publication Date
2016-06-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a comprehensive coordination control method of a photovoltaic power generation microgrid having a weather prediction function. The photovoltaic power generation microgrid having the weather prediction function comprises a DC / AC inverter, a photovoltaic array and bidirectional DC / AC converter, a circuit breaker, a load and AC bus, an energy storage battery, a coordination controller, a control network connected with the coordination controller and the convertor and the circuit breaker, a power dispatching centre and a weather prediction module. Under the premise of ensuring sufficient power supply for a user, the method, through comprehensive application of weather judgment and prediction, power supply scheduling and energy storage device scheduling, enables the photovoltaic power generation microgrid to be prepared for adjustment in advance under the condition of weather judgment and prediction, thereby improving mode switching speed of the system for different situations and reducing system misoperation rate; and power quality and power supply reliability are ensured, and the load of the user is allowed to operate stably.
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Description

technical field

[0001] The invention relates to the field of power systems, in particular to a comprehensive coordination control method for a photovoltaic power generation micro-grid with weather forecasting. Background technique

[0002] Microgrid is a small low-voltage system composed of distributed generation, energy storage and load. The internal power supply of the microgrid is mainly clean energy, and the conversion of electric energy is mainly realized by power electronic equipment. Microgrid overcomes the shortcomings of randomness and intermittency of distributed power, and utilizes distributed power reasonably and effectively. Improve energy utilization, optimize energy structure, reduce environmental pollution; solve power supply problems in remote rural areas, reduce transmission capacity of large power grids, avoid line congestion, reduce line losses, and reduce investment in transmission and distribution lines; improve power supply security and Reliability, ...

Claims

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