Wind power generation-based electric energy quality compensation controlling apparatus and method thereof
A power quality and compensation control technology, applied in wind power generation, AC network voltage adjustment, power network operating system integration, etc., can solve problems such as high cost, low response processing speed, and complex structure.
Active Publication Date: 2015-04-22
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Problems solved by technology
[0004] Based on this, it is necessary to provide a power quality compensation control device based on wind power generation with a simple structure and low production cost for the problems of low response processing speed, complex structure and high cost of the existing wind power generation based power quality compensation control device. method
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[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to the drawings and embodiments. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.
[0019] like figure 1 As shown, a power quality compensation control device based on wind power generation includes a wind power conversion module 100, a central control module 200, a DC processing module 300, an AC voltage mutual induction module 400, an H-bridge inverter module 500 and a bypass thyristor module 600, The bypass thyristor module 600 includes a plurality of IGBTs connected in anti-series;
[0020] The wind power conversion module 100 is connected to the input terminal of the DC processing module 300, the control terminal of the DC processing module 300 is connected to the control terminal of the ce...
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The invention provides a wind power generation-based electric energy quality compensation controlling apparatus and a method thereof. The apparatus consists of a wind power-electricity energy conversion module, a central control module, a direct-current processing module, an alternating-current voltage transformer module, an H bridge inverter module and a bypass thyristor module. The central control module measures a current value and a voltage value of the direct current by the direct-current processing module, calculates a real-time output power of the direct-current processing module and carries out maximum power tracking on the direct-current processing module; and the alternating-current voltage transformer module measures a voltage value of an alternating-current power grid. When the central control module detects that the voltage value of the alternating-current power grid is lower than a preset range of a rated voltage value preset by the alternating-current power grid, the bypass thyristor module is controlled to be turned off; and the H bridge inverter module is controlled to compensate the alternating-current power grid for a difference voltage value between the rated voltage value preset by the alternating-current power grid and the alternating-current power grid voltage value. The provided wind power generation-based electric energy quality compensation controlling apparatus does not employ a series transformer, so that the size of the apparatus is small and the cost is low.
Description
technical field [0001] The invention relates to the technical field of power quality, in particular to a power quality compensation control device and method based on wind power generation. Background technique [0002] Power quality problems will not only bring great economic losses to the industry, such as shutdowns and restarts that lead to increased production costs, damage to sensitive equipment, scrapped semi-finished products, reduced product quality, resulting in marketing difficulties and damage to the company's image and good reputation with users Business relations, etc., and will also bring harm to equipment in important power-consuming departments such as medical care, causing serious production and operation accidents. According to the research of the American Electric Power Research Institute, power quality problems lead to the loss of data, materials and productivity in the US industry every year. The loss amounted to 30 billion U.S. dollars. In Singapore, ev...
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IPC IPC(8): H02J3/38H02J3/14
CPCY02B70/3225Y02E10/76Y04S20/222
Inventor 钟清张文峰余南华高新华张良栋周伊琳黄远明张晓平胡巨刘东李国杰冯琳
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID