新能源基地经特高压交流送出系统输电能力与提升措施

doi:10.12204/j.issn.1000-7229.2022.07.015

电力建设 ›› 2022, Vol. 43 ›› Issue (7): 131-138.doi: 10.12204/j.issn.1000-7229.2022.07.015

新能源基地经特高压交流送出系统输电能力与提升措施

习工伟(), 赵兵, 郑帅飞, 沈琳, 贾琦, 袁超

电网安全与节能国家重点实验室(中国电力科学研究院有限公司),北京市100192

收稿日期:2021-12-17 出版日期:2022-07-01 发布日期:2022-06-30
通讯作者: 习工伟 E-mail:xigongwei@epri.sgcc.com.cn
作者简介:赵兵(1980),男,博士,教授级高级工程师,研究方向为电力系统稳定分析与控制;
郑帅飞(1992),男,学士,工程师,研究方向为电力系统稳定分析与控制;
沈琳(1987),女,硕士,高级工程师,研究方向为电力系统次同步振荡分析、电磁暂态仿真技术;
贾琦(1992),男,硕士,工程师,研究方向为电力系统稳定分析与控制;
袁超(1995),男,学士,助理工程师,研究方向为电力系统稳定分析与控制。
基金资助:
国家电网公司科技项目“千万千瓦级新能源特高压交流送出系统暂态过电压综合控制研究”(5100-202055434A-0-0-00)

Transmission Capacity and Improvement Measures of the UHVAC Sending System from New Energy Base

XI Gongwei(), ZHAO Bing, ZHENG Shuaifei, SHEN Lin, JIA Qi, YUAN Chao

State Key Laboratory of Power Grid Safety and Energy Conservation (China Electric Power Research Institute), Beijing 100192, China

Received:2021-12-17 Online:2022-07-01 Published:2022-06-30
Contact: XI Gongwei E-mail:xigongwei@epri.sgcc.com.cn
Supported by:
State Grid Corporation of China Research Program(5100-202055434A-0-0-00)

摘要/Abstract

摘要：

随着新能源在电力系统中占比不断增加,大规模新能源安全稳定送出能力提升成为一个普遍关注的问题。以张北地区千万千瓦级新能源基地经张北—雄安1 000 kV特高压交流输电线路送出为例,使用电力系统分析综合程序 (power system analysis software package,PSASP)搭建了其机电暂态仿真模型,其中包含具备低电压穿越功能的新能源模型及分布式调相机模型,分析了新能源送出能力的制约关键因素,研究了分布式调相机配置对于新能源短路比的影响,最后通过全数字电力系统仿真器(advanced digital power system simulator,ADPSS)全电磁暂态仿真验证了暂态过电压问题优化效果。计算结果表明,暂态过电压和稳态低电压是制约张北地区新能源经特高压交流送出能力的主要因素,在新能源短路比较低的发电机组机端配置分布式小型调相机,可有效抑制暂态过电压问题,提高新能源整体送出能力。研究结果对电力系统规划、运行及国内同类新能源送出工程设计都具有较强的参考价值。

关键词: 千万千瓦级, 特高压交流, 暂态过电压, 分布式调相机

Abstract:

With the increasing proportion of new energy in power system, the safety and stability of large-scale new energy has become a common concern. Taking the 1 000 kV Zhangbei—Xiong’an UHVAC transmission line from the 10 million kilowatt new energy base in Zhangbei area as an example, this paper builds a PSASP electromechanical transient simulation model, which includes new energy model and distributed condenser model with low voltage crossing function. The paper analyzes the constraints of the new energy transmission capacity. And then the influence of different configuration schemes on short-circuit ratio of new energy and the suppression effect of transient overvoltage are studied. Finally, the optimization effect of transient overvoltage problem is verified by ADPSS all electromagnetic transient simulation. The results show that transient overvoltage and steady-state low voltage are the main factors restricting the transmission capacity of UHVAC line from new energy base. The distributed small-scale condenser is installed at the generator end with low short-circuit ratio of new energy, which can effectively restrain the transient overvoltage problem and improve the overall output capacity of new energy. The results of the study are of great reference value for planning, operation and design of the same kind of new energy delivery project in China.

Key words: 10 million kilowatts, UHVAC, transient overvoltage, distributed condenser

中图分类号:

TM72

习工伟, 赵兵, 郑帅飞, 沈琳, 贾琦, 袁超. 新能源基地经特高压交流送出系统输电能力与提升措施[J]. 电力建设, 2022, 43(7): 131-138.

XI Gongwei, ZHAO Bing, ZHENG Shuaifei, SHEN Lin, JIA Qi, YUAN Chao. Transmission Capacity and Improvement Measures of the UHVAC Sending System from New Energy Base[J]. ELECTRIC POWER CONSTRUCTION, 2022, 43(7): 131-138.

图/表 15

图1 张北—雄安特高压交流简化接线图

Fig.1 Simplified diagram of Zhangbei-Xiong’an UHVAC system

图2 张北新能源汇集方式

Fig.2 Gathering mode of Zhangbei new energy base

图3 风电场低电压穿越能力要求

Fig.3 Requirements for low-voltage ride-through capability of wind farm

图4 光伏电站低电压穿越能力要求

Fig.1 Requirements for low-voltage ride-through capability of photovoltaic power station

表1 张北—雄安三永N-1故障期间风电机组脱网情况

Table 1 Disconnection of wind power during Zhangbei-Xiong’an three-phase permanent N-1 fault

图5 风电经交流送出系统

Fig.5 Wind harm AC sending system

图6 不同有功比例系数下风电低电压穿越有功响应

Fig.6 LVRT active power response of wind power under different active power ratio coefficients

图7 不同无功比例系数下风电低电压穿越无功响应

Fig.7 LVRT reactive power response of wind power under different reactive power ratio coefficients

图8 电压矢量图

Fig.8 Diagram of voltage vectors

图9 分布式调相机接入方式

Fig.9 Access mode of distributed condenser

图10 集中式调相机接入方式

Fig.10 Access mode of centralized condenser

图11 调相机动态无功特性

Fig.11 Dynamic reactive power characteristics of condenser

表2 分布式调相机投运前后新能源多场站短路比

Table 2 MRSCR before and after operation of distributed condenser

图12 张北—雄安特高压交流ADPSS模型

Fig.12 Zhangbei-Xiong’an UHVAC ADPSS model

表3 各区域机端暂态过电压最高点优化效果

Table 3 Optimization effect of the highest point of transient overvoltage at generator terminal in each region

参考文献 19

[1]	屠竞哲, 张健, 刘明松, 等. 考虑风机动态特性的大扰动暂态过电压机理分析[J]. 电力系统自动化, 2020, 44(11): 197-205.
	TU Jingzhe, ZHANG Jian, LIU Mingsong, et al. Mechanism analysis of transient overvoltage with large disturbance considering dynamic characteristics of wind generator[J]. Automation of Electric Power Systems, 2020, 44(11): 197-205.
[2]	贺静波, 庄伟, 许涛, 等. 暂态过电压引起风电机组连锁脱网风险分析及对策[J]. 电网技术, 2016, 40(6): 1839-1844.
	HE Jingbo, ZHUANG Wei, XU Tao, et al. Study on cascading tripping risk of wind turbines caused by transient overvoltage and its countermeasures[J]. Power System Technology, 2016, 40(6): 1839-1844.
[3]	贾俊川, 金一丁, 赵兵, 等. 风机低电压穿越控制对系统暂态过电压的影响及优化[J]. 电网技术, 2021, 45(2): 526-533.
	JIA Junchuan, JIN Yiding, ZHAO Bing, et al. Impact analysis and performance optimization of LVRT control of wind turbine on transient overvoltage of power system[J]. Power System Technology, 2021, 45(2): 526-533.
[4]	李欣悦, 李凤婷, 尹纯亚, 等. 直流双极闭锁故障下送端系统暂态过电压计算方法[J]. 电力系统保护与控制, 2021, 49(1): 1-8.
	LI Xinyue, LI Fengting, YIN Chunya, et al. Transient overvoltage calculation method of HVDC sending-end system under DC bipolar blocking[J]. Power System Protection and Control, 2021, 49(1): 1-8.
[5]	任冲, 柯贤波, 樊国伟, 等. 大规模风电直流送出系统过电压抑制措施及控制方案优化研究[J]. 高压电器, 2020, 56(5): 163-174.
	REN Chong, KE Xianbo, FAN Guowei, et al. Transient voltage stabilization and control optimization for large-scale wind power UHV DC transmission system[J]. High Voltage Apparatus, 2020, 56(5): 163-174.
[6]	曹生顺, 张文朝, 王蒙, 等. 大容量直流发生功率大扰动时送端风机暂态过电压快速分析方法研究[J]. 高电压技术, 2017, 43(10): 3300-3306.
	CAO Shengshun, ZHANG Wenchao, WANG Meng, et al. Study on fast analysis method transient fundamental frequency overvoltage of wind turbine generators in sending system when serious power disturbances occur in large-capacity UHVDC[J]. High Voltage Engineering, 2017, 43(10): 3300-3306.
[7]	屠竞哲, 张健, 曾兵, 等. 直流换相失败及恢复过程暂态无功特性及控制参数影响[J]. 高电压技术, 2017, 43(7): 2131-2139.
	TU Jingzhe, ZHANG Jian, ZENG Bing, et al. HVDC transient reactive power characteristics and impact of control system parameters during commutation failure and recovery[J]. High Voltage Engineering, 2017, 43(7): 2131-2139.
[8]	李志强, 何凤军, 郭强, 等. 青南新能源集中送出地区动态无功补偿方案对比研究[J]. 现代电力, 2021, 38(1): 87-93.
	LI Zhiqiang, HE Fengjun, GUO Qiang, et al. Comparative study on dynamic reactive power compensation scheme in the concentrated delivery area of new energy in southern Qinghai[J]. Modern Electric Power, 2021, 38(1): 87-93.
[9]	王雅婷, 张一驰, 周勤勇, 等. 新一代大容量调相机在电网中的应用研究[J]. 电网技术, 2017, 41(1): 22-28.
	WANG Yating, ZHANG Yichi, ZHOU Qinyong, et al. Study on application of new generation large capacity synchronous condenser in power grid[J]. Power System Technology, 2017, 41(1): 22-28.
[10]	李志强, 种芝艺, 黄金军. 快速动态响应同步调相机动态无功特性试验验证[J]. 中国电机工程学报, 2019, 39(23): 6877-6885.
	LI Zhiqiang, CHONG Zhiyi, HUANG Jinjun. Test verification of dynamic reactive power characteristics of fast dynamic response synchronous condenser[J]. Proceedings of the CSEE, 2019, 39(23): 6877-6885.
[11]	索之闻, 刘建琴, 蒋维勇, 等. 大规模新能源直流外送系统调相机配置研究[J]. 电力自动化设备, 2019, 39(9): 124-129.
	SUO Zhiwen, LIU Jianqin, JIANG Weiyong, et al. Research on synchronous condenser configuration of large-scale renewable energy DC transmission system[J]. Electric Power Automation Equipment, 2019, 39(9): 124-129.
[12]	郑超, 李媛, 吕盼, 等. 规模化光伏并网对暂态稳定影响及应对措施[J]. 高电压技术, 2017, 43(10): 3403-3411.
	ZHENG Chao, LI Yuan, LÜ Pan, et al. Influence of large-scaled photovoltaic grid connected on the transient stability and countermeasures[J]. High Voltage Engineering, 2017, 43(10): 3403-3411.
[13]	覃琴, 周勤勇, 张一驰, 等. 电网受电规模的影响因素分析及应对措施[J]. 电力建设, 2017, 38(4): 120-126.
	QIN Qin, ZHOU Qinyong, ZHANG Yichi, et al. Influencial factors analysis of receiving power flow capacity and countermeasures[J]. Electric Power Construction, 2017, 38(4): 120-126.
[14]	王云玲, 李婷, 杨伟峰, 等. 一种送端电网单回直流极限承载能力评估方法[J]. 电力建设, 2021, 42(11): 82-89.
	WANG Yunling, LI Ting, YANG Weifeng, et al. An evaluation method of single-circuit HVDC ultimate feed-out capacity of sending-end grid[J]. Electric Power Construction, 2021, 42(11): 82-89.
[15]	潘尔生, 王新雷, 徐彤, 等. 促进可再生能源电力接纳的技术与实践[J]. 电力建设, 2017, 38(2): 1-11.
	PAN Ersheng, WANG Xinlei, XU Tong, et al. Technology and practice of promoting renewable energy power accommodation[J]. Electric Power Construction, 2017, 38(2): 1-11.
[16]	于琳, 孙华东, 徐式蕴, 等. 电力电子设备接入电压支撑强度量化评估指标综述[J]. 中国电机工程学报, 2022, 42(2): 499-515.
	YU Lin, SUN Huadong, XU Shiyun, et al. Overview of strength quantification indexes of power system with power electronic equipment[J]. Proceedings of the CSEE, 2022, 42(2): 499-515.
[17]	陈国平, 李明节, 许涛, 等. 我国电网支撑可再生能源发展的实践与挑战[J]. 电网技术, 2017, 41(10): 3095-3103.
	CHEN Guoping, LI Mingjie, XU Tao, et al. Practice and challenge of renewable energy development based on interconnected power grids[J]. Power System Technology, 2017, 41(10): 3095-3103.
[18]	陈国平, 李明节, 许涛, 等. 关于新能源发展的技术瓶颈研究[J]. 中国电机工程学报, 2017, 37(1): 20-27.
	CHEN Guoping, LI Mingjie, XU Tao, et al. Study on technical bottleneck of new energy development[J]. Proceedings of the CSEE, 2017, 37(1): 20-27.
[19]	王亮, 盖振宇, 蒋维勇, 等. ±800 kV雁淮特高压直流系统送端孤岛运行闭锁策略[J]. 电力建设, 2020, 41(8): 40-47.
	WANG Liang, GAI Zhenyu, JIANG Weiyong, et al. Blocking strategy for ± 800 kV Yan-Huai UHVDC system in island operation mode of delivering side[J]. Electric Power Construction, 2020, 41(8): 40-47.

新能源基地经特高压交流送出系统输电能力与提升措施

Transmission Capacity and Improvement Measures of the UHVAC Sending System from New Energy Base

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