A Multi-objective Optimal Design and Coordinated Control Method for Hydropower and Photoelectricity
A multi-objective optimization and coordinated control technology, applied in electrical components, circuit devices, photovoltaic power generation, etc., can solve problems such as low photoelectric utilization rate, imperfect control methods, and high amount of discarded light.
Active Publication Date: 2019-04-30
SOUTHEAST UNIV
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[0004] At present, the domestic hydropower and photovoltaic combined power generation control methods are not perfect, usually only for the optimization of single photovoltaic power station dispatching and hydropower station dispatching, resulting in low photovoltaic utilization rate and high light abandonment
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[0031] The present invention will be further described in detail below with reference to the accompanying drawings and examples. However, the invention is not limited to the examples given.
[0032] figure 2 It is a combined hydropower station-photovoltaic power station system, including hydropower station subsystems, photovoltaic power station subsystems, and power controllers.
[0033] The present invention is used for the multi-objective optimal design and coordinated control of hydropower and photovoltaic power generation. In order to simulate the randomness and fluctuation of illumination, it is assumed that image 3 According to the 24-hour maximum available photovoltaic power output information, the hydropower and photovoltaic power prices are 0.54 yuan / kwh and 0.9 yuan / kwh, respectively.
[0034] (1) Set the total control time and the control instruction issuing cycle of the hydropower-photovoltaic power station combined system according to the grid dispatching need...
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The invention provides a hydroelectricity and photoelectricity coordination control method suitable for power grid dispatching, specific to a hydroelectricity-photoelectricity-containing association system. According to the method, various limitations in operating of the association system are taken into consideration; a water-light complementary multi-objective optimization model considering water regimen information is established; a multi-objective planning problem is configured by taking maximum complementary system grid-connection benefit and maximum photovoltaic consumption capability as objective functions; and hydroelectricity and photoelectricity output power are optimized by adopting multi-objective solving. Compared with the existing method, the maximum of the photovoltaic consumption capability can be achieved while the power supply grid-connected output benefit can be effectively improved from the operating aspect, thereby promoting the consumption of renewable energy and smooth operation of the power grid.
Description
technical field [0001] The invention relates to a method for optimizing hydropower and photoelectric output power, and belongs to the technical field of power supply coordination control in new energy power generation technology. Background technique [0002] In order to cope with the huge pressure and new challenges brought by large-scale photovoltaic access to the safe and stable operation of the power system, as well as the uncertainty of photovoltaic power generation, the operation of photovoltaic power plants needs to be equipped with corresponding energy storage devices, but at the same time it also increases the extra operation Therefore, the joint operation of photovoltaics and economical controllable energy has gradually become a research hotspot. [0003] In recent years, the installed capacity of photovoltaic power plants has developed rapidly. At the same time, the problem of photovoltaic consumption has become more prominent, which has gradually attracted the at...
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IPC IPC(8): H02J3/48
CPCH02J3/382H02J3/383H02J3/48H02J2203/20Y02E10/56
Inventor 汤奕李峰刘煜谦戴剑丰朱亮亮王琦
Owner SOUTHEAST UNIV