Micro-Grid Converter Control Strategy Design Based on Virtual Synchronous Generators
碩士 === 國立中央大學 === 電機工程學系 === 105 === In this paper, the converter is used to simulate the synchronous generators. In island mode, converter can meet load requirements and provide stable voltage and frequency support .In grid-connected mode, converter can output request active power or reactive power...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2017
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| Online Access: | http://ndltd.ncl.edu.tw/handle/8n4mns |
| Summary: | 碩士 === 國立中央大學 === 電機工程學系 === 105 === In this paper, the converter is used to simulate the synchronous generators. In island mode, converter can meet load requirements and provide stable voltage and frequency support .In grid-connected mode, converter can output request active power or reactive power. The control strategy of the virtual synchronous generators (VSG) is making distributed power supply operate safely and stably.
The virtual synchronous generators are need to realize seamless transform between the island mode and grid-connected mode .This paper use a pre-synchronous method of VSG based on virtual power and secondary frequency and voltage regulation is put forward to achieve seamless transform.
In island mode, multiple VSGs connected to work as a unit, each VSG should according to the capacity to sharing power which required by load . This paper simulates the operation of the virtual synchronous generator in Matlab/Simulink, and verifies the effectiveness of the proposed control algorithm.
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