Wind energy, solar energy and hydrogen energy hybrid power generation parallel inverting control device
A power generation device and wind power generation technology, which is applied in the field of power supply, can solve problems such as inverter backflow and inverter damage, and achieve the effect of preventing damage and avoiding internal backflow phenomena
Inactive Publication Date: 2015-04-29
CHINA JILIANG UNIV
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However, during the parallel connection of multiple inverters, if the power distribution is uneven, backflow will occur inside the inverter, causing damage to the inverter
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[0015] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0016] In the embodiment of the present invention, as figure 1 Shown is a wind energy, solar energy and hydrogen energy hybrid power generation system, wherein 1 is a wind power generation device, 2 is a photovoltaic power generation device, and 3 is a hydrogen power generation device. The wind power generation device 1 first changes to a DC output through the rectifier module 1a, and then connects with the control module 4a in the inverter module 4, and the control module 4a is connected with the DC / AC conversion module 4b, and uses the control module 4a to calculate the maximum power point. To obtain the output power of the wind power generation device in the previous working environment, the calculation method of the maximum power point used can be based on the existing power tracking method of tip speed ratio control; the photovoltaic power generati...
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The invention provides a wind energy, solar energy and hydrogen energy hybrid power generation parallel inverting control device. The wind energy, solar energy and hydrogen energy hybrid power generation parallel inverting control device comprises a wind energy power generation device, a solar energy power generation device and a hydrogen energy power generation device; the wind energy power generation device is connected with an inverter module through a rectifier module, the solar energy power generation device and the hydrogen energy power generation device are each connected with a rectifier module, and the output ends of the rectifier modules are connected in parallel to be connected with a load. The maximum output powers of the power generation devices are obtained through a control module, and the rectifier module corresponding to the power generation device with the maximum output power serves as a main inverter; the other rectifier modules serve as auxiliary inverters, and the auxiliary inverters conduct output along with the main inverter; the rectifier modules are voltage / current loop control inverters, and mode switching can be carried out according to the master-slave relation of the inverters. By means of the wind energy, solar energy and hydrogen energy hybrid power generation parallel inverting control device, master-slave control over the parallel inverters is carried out, the problem of inverter internal backflow caused by uneven power distribution in an existing parallel inverting system is solved, and damage to the inverters is avoided.
Description
Technical field: [0001] The invention relates to power supply technology, in particular to a new energy hybrid power generation parallel inverter control device. Background technique: [0002] With the continuous consumption of traditional fossil energy, research on new energy generation technologies such as photovoltaic power generation and wind power generation has attracted the attention of various countries. In order to effectively improve the efficiency of new energy power generation, hybrid power generation is often used in the application process, and the connection with AC loads is more conducive to the promotion of new energy hybrid power generation technology. Therefore, in the new energy hybrid power generation system, the inverter device plays a vital role. [0003] Due to the different power generation characteristics of new energy sources, one inverter cannot meet the demand. This requires that each new energy source needs an inverter, and the output terminal...
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IPC IPC(8): H02M7/493
CPCY02E10/76H02J3/381H02J3/46
Inventor 卫东楼洪赵磊王志文
Owner CHINA JILIANG UNIV