Transmission line ice melting method based on energy storage device and circuit
A technology for transmission lines and energy storage devices, which is applied in the direction of circuit devices, battery circuit devices, collectors, etc., can solve problems such as low utilization rate and increase equipment cost, and achieve the effect of simple structure, easy implementation, and improved system safety
Active Publication Date: 2014-02-19
大连尚佳新能源科技有限公司
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Problems solved by technology
High-current ice melting has broad prospects, but at present, special high-current ice-melting equipment is used, which greatly increases the cost of equipment, and the utilization rate is extremely low
Method used
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[0023] Below in conjunction with the accompanying drawings, the invention patent is further described, as figure 1 shown.
[0024] A transmission line melting circuit based on an energy storage device, including a megawatt-level energy storage device 1, a step-up transformer 2, a 35kV transmission line 3, a short circuit device 4, a switch KC5, a switch KB6, a switch KA7, a power generation system 8, and a switch KD9, power grid 13; the megawatt-level energy storage device 1 includes a battery system 10 for energy storage, a power conversion module 11 and a core controller 12; the megawatt-level energy storage device 1 is connected to the step-up transformer 2 through a switch KA6 , the power generation system 8 is connected to the step-up transformer 2 through the switch KD9, the step-up transformer 2 is connected to the 35kV transmission line 3, the 35kV transmission line 3 is connected to the power grid through the switch KC5, a short-circuit device 4 is set between the 35k...
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The invention discloses a transmission line ice melting method based on an energy storage device and a circuit. The circuit comprises a large-capacity battery system, a megawatt power conversion module, a core controller, a boosting transformer, a 35kV transmission line, a short-circuit device and a switch K. The large-capacity battery system is connected to the boosting transformer through a two-way power converter, a power grid preceding-stage KC is connected with the boosting transformer through the 35kV transmission line, and the short-circuit device is located at the connection point of the switch KC and the 35kV transmission line. When the 35kV transmission line is iced, the short-circuit device on the power grid side can be started, short-circuited currents needed by the line can be provided through the megawatt energy storage device, the 35kV transmission line is deiced, the functions of the energy storage device are improved, and cost for ice melting of the transmission line is greatly reduced.
Description
technical field [0001] The invention relates to a method for melting ice of high and low voltage transmission lines, in particular to measures for melting ice of power system transmission lines with energy storage. Background technique [0002] In recent years, green energy has become more and more important in our daily life, and renewable new energy power generation has developed rapidly. However, due to the high uncertainty of new energy power generation, the power generation power is affected by the objective natural climate, which is not conducive to the dispatching of the power grid. With the large-scale application of distributed power sources, there are more and more unstable factors in the power grid. It is necessary to use energy storage batteries to cut peaks and fill valleys for distributed power sources, to store electric energy or to transform and transmit power according to system instructions. At present, the main methods used at home and abroad. At present...
Claims
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IPC IPC(8): H02G7/16H02J7/00
Inventor 许明夏周鹏吴志敢
Owner 大连尚佳新能源科技有限公司