A switched reluctance wind generator power converter and its control method
A technology of wind power generator and power converter, which is applied in the direction of controlling the generator through the change of the magnetic field, controlling the generator, controlling the system, etc.
Inactive Publication Date: 2019-03-26
CHINA JILIANG UNIV
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[0007] At present, there are few reports on the application of switched reluctance generators to wind power generation systems. So, in addition to being able to adapt to a simpler system structure, can the application of switched reluctance generators be used in wind power generation? Making progress is bound to become the research consensus of the industry
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[0034] as attached figure 1 As shown, the switched reluctance wind power generator power converter of this embodiment is composed of a power converter main circuit 1, an excitation power supply 2, an excitation power supply 3, an enhanced excitation circuit 4, and a fast shutdown and daily power supply circuit 5; The positive and negative terminals of the output of the main circuit 1 of the converter are connected to the respective input terminals of the excitation power supply 2, the excitation power supply 3, the rapid shutdown and the daily power supply circuit 5, the positive and negative terminals of the output of the excitation power supply 2, and the reinforced excitation circuit The positive and negative ends of the output of 4 are connected to the input ends of the main circuit 1 of the power converter, the positive and negative ends of the output of the excitation power supply 3 are connected to the input ends of the reinforced excitation circuit 4, and the input and ...
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The invention relates to a switched reluctance wind generator power converter and a control method thereof. The power converter comprises a main power converter circuit, an excitation initiating power source, an excitation power source, an intensified excitation circuit and a rapid turn-off and daily power source circuit, wherein an output end of the main power converter circuit is connected with respective input ends of the excitation initiating power source, the excitation power source and the rapid turn-off and daily power source circuit, output ends of the excitation initiating power source and the intensified excitation circuit are connected with an input end of the main power converter circuit, and an output end of the excitation power source is connected with an input end of the intensified excitation circuit. During work, a control function is realized through controlling switch motion of a switch tube, on the condition that an excitation voltage is expanded through the main power converter circuit, the excitation voltage is further enhanced through the intensified excitation circuit, the excitation initiating power source has self charging capability, the rapid turn-off and daily power source circuit accelerates demagnetization and generates an extra power source, whole system intelligence, wide scope and high benefits are realized, and the power converter and the control method thereof have application values in the small and medium wind power fields.
Description
technical field [0001] The invention relates to the field of wind power generation, in particular to a power converter of a switched reluctance wind power generator and a control method thereof. Background technique [0002] The use of wind power to generate electricity is a clean, non-polluting and renewable energy utilization method that has been actively advocated and vigorously developed around the world since the beginning of the 21st century. [0003] In the application of wind power generators, domestic and foreign industries mainly use AC generators such as asynchronous generators and permanent magnet synchronous generators. For many years, there have been few reports on the application of switched reluctance generators. Although switched reluctance generators are relatively capable It has the advantages of simple and firm structure, convenient heat dissipation, strong fault tolerance, and higher efficiency than asynchronous generators. [0004] In recent years, the...
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IPC IPC(8): H02P9/38H02P9/30
CPCH02P9/305H02P9/38
Inventor 孙冠群
Owner CHINA JILIANG UNIV