New Ice-melting Device with Function of Reactive Power Compensation and Active Filtering

LU Jiazheng; ZHU Siguo; LI Bo; ZHANG Hongxian; TAN Yanjun; ZHU Yuan

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New Ice-melting Device with Function of Reactive Power Compensation and Active Filtering

更新时间：2025-12-08

- New Ice-melting Device with Function of Reactive Power Compensation and Active Filtering
- Vol. 42, Issue 7, Pages: 2207-2214(2016)
- 作者机构：
  
  国网湖南省电力公司防灾减灾中心电网输变电设备防灾减灾国家重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：31 July 2016，
  
  Published：2016
- 稿件说明：
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LU Jiazheng, ZHU Siguo, LI Bo, et al. New Ice-melting Device with Function of Reactive Power Compensation and Active Filtering[J]. 2016, 42(7): 2207-2214.
DOI：

LU Jiazheng, ZHU Siguo, LI Bo, et al. New Ice-melting Device with Function of Reactive Power Compensation and Active Filtering[J]. 2016, 42(7): 2207-2214. DOI：

摘要

为解决直流融冰装置利用率较低的问题

将直流融冰装置与静止无功发生器（STATCOM）结合

研究了一种新型的直流融冰装置—集约型直流融冰装置

将装置融冰容量与动态无功补偿容量分开优化配置。该装置利用12脉动直流融冰装置的整流变压器将STATCOM逆变器接入电网

可以使整流变压器得到充分利用

并提供动态无功支撑、改善融冰运行时的电能质量

有效提高了装置利用率。对集约型直流融冰装置的融冰、无功补偿和稳压等功能开展了仿真研究

验证了该装置的可行性。最后对安装在湖南郴州福冲变的集约型直流融冰装置进行试验研究。结果表明

集约型直流融冰装置的融冰容量为28 MW

动态无功补偿容量为±20 MVA

具有显著融冰效果

可有效提高系统电压稳定性

使得220 k V母线电压正偏差下降了0.92%

220 k V母线负序不平衡下降了0.93%。此外

该装置可有效滤除系统低次谐波

使得220 k V母线电压总畸变率下降了0.4%

各次谐波电流减少了0.1

.3 A。试验结果验证了集约型直流融冰装置的可行性与正确性。

Abstract

In order to solve the problem of low utilization ratio of DC melting ice device

we have proposed a new DC ice-melting device—intensive DC ice-melting device with the combination of STATCOM and DC ice-melting device

which has the characteristics of capacity separate optimization for ice-melting and dynamic power compensation. The STATCOM inverter is connected to the grid by the rectifier transformer of 12-pulse DC melting ice which can make full use of rectifier transformer

provide dynamic reactive power support

improve power quality during ice melting operation mode

and effectively improve the device utilization. Simulations are carried out to verify the feasibility of intensive DC ice-melting device w

ith the features of melting ice

reactive power compensation

and voltage regulator. Finally

the test study of intensive DC ice-melting device is carried out in Fuchong transformer substation in Chenzhou of Hunan. The results show that the ice melting capacity is 28 MW and the dynamic reactive power compensation capacity is ±20 MVA. The intensive DC ice-melting device has a significant effect on melting ice

and can effectively improve system voltage stability; the 220 k V bus voltage positive deviation decreases by 0.92 %; 220 k V bus negative sequence unbalance decreases by 0.93%. Moreover

filter out low-order harmonics such as the 220 k V bus voltage total distortion rate decreases by 0.4% and the harmonic currents decrease by 0.1

.3 A. The test results verify the feasibility and correctness of intensive DC ice-melting device.

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