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随着南方电网的不断发展,电网调频工作日益艰难。天生桥水电站作为南方电网的枢纽发电厂,参与南方电网自动调频对保持和提高南方电网的频率质量具有重要意义。章对天生桥水电站参与南方电网自动调频的可行性进行了探讨,并提出了天生桥水电站出力应由南方电网总调AGC系统控制,机组发电出力由南方电网总调远方设定,当地只作监视不作控制等相关方案。 相似文献
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基于我国自主研发的气候模式,构建了面向南方电网区域的全球-区域双向耦合模式,开展了1991—2020年集合回报试验,研发了适合南方电网区域降水预测的误差订正方法,并构建了适合于南方电网区域的降水季节预测系统。集合回报结果表明:全球-区域双向耦合技术可显著改善模式对南方电网区域降水空间分布及其主导模态的模拟预报能力,误差订正方案可显著提高对南方电网区域夏季降水异常的预测技巧。30年平均空间相关系数和预报技巧评分分别可达0.27和74.31,南方电网区域平均时间相关系数可达0.28。预测系统对典型旱涝年也展现出良好的预测技巧。总体而言,此系统可向南方电网区域提供可靠的季节性降水预测产品,为南方电网的安全运行和调配管理提供技术支持。 相似文献
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由南方电网技术研究中心和南方电网超高压输变电公司联合举办的南方电网直流技术仿真培训班(第1期)于2004年10月10日至12日在南方电网技术研究中心顺利举行。 相似文献
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两渡直流投产后南方电网将形成"八交八直"并列运行的局面,可大幅提高西电东送的能力,但也会给南方电网严重故障后的失步特性带来新的问题。为此,研究了南方电网现有失步解列控制措施的适应性及存在问题,通过仿真研究分析了两渡直流投产后南方电网失步振荡特性的变化,并根据南方电网发展情况给出了云南与主网异步联网、强化稳定防线等方面的应对措施。 相似文献
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《The Electricity Journal》2022,35(1):107059
As a secure distributed ledger, blockchain has attracted a great deal of attention over the past decade. The power sector is not an exception to this phenomenon and industry leaders are looking into different ways to create value through this technology. Blockchain is a powerful enabling technology for decentralization of the energy systems of the future. Although this technology can be applied to a wide spectrum of applications in the power sector, many challenges and limitations are still needed to be addressed before its full implementation into grid operations. This paper presents energy innovations through the blockchain technology and addresses the barriers that preclude the power sector from large-scale, full-scope adoption of this technology. The emerging blockchain trends in near future will be further discussed and its potential in facilitating a secure, decentralized energy trading platforms will be investigated in this paper. 相似文献
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本根据《电力系统技术导则(试行)》所确定的一系列电网建设原则,结合浙江电网220KV和500KV主网架形成和发展中存在的问题,对改善和加强电网结构提出了一些设想和建议,作还对电网建设和运行中的某些具体技术问题作了分析和探讨。 相似文献
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揭阳地区110千伏电网接线形式探讨 总被引:1,自引:0,他引:1
邢林华 《广东输电与变电技术》2004,(5):76-78
结合揭阳地区电网实际情况,根据不同的经济发展水平和负荷密度,按照不同供电可靠性和投资经济性要求,推荐合理的地区110千伏电网接线形式。 相似文献
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Iranian power system encountered major oscillations in January 2008 in the northeastern area with an amplitude of about 120 MW. Since not all the events and variables had been recorded, a scenario to simulate the recorded oscillations and results of studies conducted to reproduce the oscillations by simulation are discussed in the first part. Tuning of supplementary controllers, such as PSSs, on the generating units and the use of reactive power compensators in the long transmission line to enhance stability and eliminate severe oscillations between the north and eastern areas are investigated in the second part. Eigen-value analysis and participation factors are used to appreciate the nature of oscillations and the required PSS settings. The results show that, by using the properly tuned PSSs and accurate compensation of the reactive power, transient stability and damping of oscillations are considerably improved. 相似文献