Rolling mill system solutions
1.DC Rolling Mill Load Characteristics
DC rolling mill type loads generate a large amount of harmonic current during operation. If not addressed, this will seriously affect the safe operation of the power grid and other equipment in the grid; In the rolling mill system, when the left and right coilers are working, one coiler is in the motor state, and the other coiler is in the power generation state. The active power of the two cancels each other out, while the reactive power cannot be canceled out.
2.Using MV1X Passive Hybrid Device Solution
2.1 Compensation Design Basis
Our company's MV1X Passive hybrid deviceIt can not only control harmonics but also compensate for reactive power, and will not cause harmonic amplification phenomenon of pure capacitive compensation devices.
Based on the transformer and motor parameters provided by the user, the rolling mill fundamental wave compensation capacity calculation considers the minimum load rate of 10% and the maximum load rate of 80% of the motor. Through the calculation of the fundamental wave capacity, the corresponding MV1X Passive hybrid device。
2.2.Device effect after use
The on-site power factor reaches more than 0.9, reduces line loss, improves power supply, and improves the utilization rate of power supply and distribution equipment, stabilizes grid voltage fluctuations, and makes the voltage fluctuation range reach the national standard.
Effectively reduces the on-site harmonic current, improves the safe operation coefficient of the transformer, increases the effective capacity of the transformer, increases the corresponding load capacity, effectively reduces the loss of the transformer, and achieves the purpose of energy saving and consumption reduction.
3.Partial Project Performance
|
User Name |
Load Type |
Industry Category |
|
Thailand MSSC Steel Company |
Strip Rolling Mill |
Metallurgy |
|
Kunming Iron and Steel Group Co., Ltd. Hot Rolling Plant |
AC-AC Frequency Conversion Strip Rolling Mill |
Metallurgy |
|
Kunming Iron and Steel Group Co., Ltd. Cold Rolling Plant |
Strip Rolling Mill |
Metallurgy |
|
Kunming Iron and Steel Group Co., Ltd. No. 1 Rolling Plant |
Bar Rolling Mill |
Metallurgy |
|
Liuzhou Iron and Steel Co., Ltd. Medium Plate Plant |
Medium Plate Rolling Mill |
Metallurgy |
|
Hubei Iron and Steel Hot Rolled Strip Plant |
Strip Rolling Mill |
Metallurgy |
|
Lianyuan Iron and Steel Group Co., Ltd. |
Bar Rolling Mill |
Metallurgy |
|
Panzhihua Iron and Vanadium Co., Ltd. Wire Rod Plant |
Bar Rolling Mill |
Metallurgy |
|
Anyang Iron and Steel Co., Ltd. Small Plant |
Bar Rolling Mill |
Metallurgy |
|
Yuxi XinXing Iron and Steel Co., Ltd. |
Medium and Wide Strip Rolling Mill |
Metallurgy |
|
Luoyang Shuangrui Precision Casting Titanium Industry Co., Ltd. |
Strip Rolling Mill |
Metallurgy |
|
Langfang Shenhua Industrial and Trade Co., Ltd. |
Strip Rolling Mill |
Metallurgy |
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Beijing YiNeng Electric Technology Co., Ltd.
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