Supercapacitor real-time detection system and method for wind turbine pitch control system
A technology for wind turbines and supercapacitors, which is used in capacitance measurement, current collectors, and measurement of electrical variables. Effect
Active Publication Date: 2017-08-25
CHONGQING HUAYU HEAVY IND ELECTROMECHANICAL CO LTD
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The advantage of this method is that it is simple and low cost. The disadvantage is that the intermediate voltage detection is mostly affected by the voltage equalizing line of the module and cannot accurately determine whether the module is invalid.
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[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] First of all, before describing the embodiments, it is necessary to explain some terms appearing in this text. For example:
[0034] Herein, terms such as "first" and "second" may be used to describe various elements, but these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a "first" element could also be termed a "second" element without departing from the teachings of the prese...
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The invention discloses a supercapacitor real-time detection system for a variable-pitch control system of a wind generating set. The system comprises a charger, a supercapacitor which is arranged in the variable-pitch control system, a relay, a charging current detection device, a controller which is arranged in the variable-pitch control system and a voltage detection module, wherein the controller comprises an uninterrupted output memory unit, a time detection module, an internal resistance calculating module and a capacitance calculating module; the relay comprises a coil and a switch; the charger is connected with the positive pole of the supercapacitor through the switch and the negative pole of the supercapacitor is connected with the charger so as to form a charging loop; the first end of the coil of the relay is connected with the controller, and the second end of the coil is grounded. The switch is connected through the current generated by the controller, so that the charger charges the supercapacitor. The invention further discloses a supercapacitor real-time detection method for the variable-pitch control system of the wind generating set.
Description
technical field [0001] The invention relates to a real-time detection system and method, in particular to a real-time detection system and method for a supercapacitor used in a pitch control system of a wind power generating set. Background technique [0002] Wind energy is a non-polluting, renewable, green and environmentally friendly energy with great potential for development. A wind turbine is a device that converts wind energy into electrical energy, and is the main form of wind energy utilization. In recent years, wind power generation technology has experienced rapid development. In the development process, the development of wind turbine control technology has played a decisive role, and the development of blade drive control technology has played an important role in promoting the development of the overall technology. Blade control is related to the safety of the entire wind turbine, so the reliability of the blade control device is particularly important. Before ...
Claims
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IPC IPC(8): H02J7/00G01R27/14G01R27/26
CPCG01R27/14G01R27/2605H02J7/34
Inventor 胡小华黄学静张成万赵胜武谢敬朗唐胜
Owner CHONGQING HUAYU HEAVY IND ELECTROMECHANICAL CO LTD