Results 61 to 70 of about 20,916 (224)

新能源对电网调峰特性影响定量评估及应用

open access: yesGaoya dianqi, 2023
随着风电、光伏新能源装机容量和占比的不断提升,中国电网所面临的新能源全额消纳和电网调峰矛盾日益严峻。针对新能源对电网调峰特性影响问题,文中提出了一种新能源对电网调峰能力影响的量化指标;基于历史运行数据,首先分析提取新能源对电网净负荷曲线特征的影响特征,然后从新能源对负荷低谷值、峰谷差影响的角度提出了量化评估指标;最后,结合某省级电网运行数据,对新能源对电网调峰能力影响进行了评估分析,并利用所提指标研究了该省电网2021年的新能源消纳形势,结果表明 ...
金梦, 朱鑫要, 周前
doaj  

Who Deserves Scarce Health and Education Resources? How Policy Context Shapes Target Group Deservingness

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT The social construction of target populations (SCTP) framework emphasizes the ways in which target populations' levels of political power and deservingness shape the allocation of policy benefits, but less attention has been devoted to the conditions under which the same target population may be considered deserving in one policy context but ...
Elizabeth Bell   +3 more
wiley   +1 more source

Policy Narratives and Empowerment: Implementation of the Swedish National Violence Prevention Program

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT As the Narrative Policy Framework (NPF) begins to unpack issues of power and narratives, the main focus has been on power‐over and domination rather than more transformative notions of power‐to and empowerment. This article draws on insights from gender and policy studies and suggests that the NPF benefits from adopting a multifaceted notion ...
Hilda Broqvist
wiley   +1 more source

Research on life cycle assessment of automobile power system in perspective of circular economy [PDF]

open access: yes, 2016
随着汽车保有量的快速增长,中国石油对外依存度持续攀升,这给中国的能源安全、交通安全等问题带来更大挑战的同时也增加了环境污染,特别是大气污染。在未来市场的需求和全球对于环境要求不断提升的压力下,电动汽车以其显著的节能减排优势,受到政府青睐。政府高度重视电动汽车的推广应用,连续出台一系列政策进行大力扶持。然而目前对于电动汽车的节能减排优势国际上尚存在争议,特别是在中国这样以火电为主的电力结构背景下,推广使用电动汽车能否实现真正的节能减排效益还有待研究明确。 本文基于循环经济视角,采用生命周期评价 ...
陈雯雯
core  

The Inclusion Trade‐Off: Comparing the Design and Functionality of Collaborative Governance Forums

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Environmental challenges require collaboration across jurisdictions, often through forums or intermediary spaces for repeated interaction. A persistent forum design question concerns inclusion criteria, or which actors should be included.
Adam Wiechman   +3 more
wiley   +1 more source

The Empirical Research on the Impact of Economic Growth and Industrial Structure on its Carbon Emissions of Shandong Province [PDF]

open access: yes, 2016
全球气候变化是人类当前面临的最重要的环境问题。中国是世界上能源消耗最多的国家之一,也是碳排放量最高的国家之一,面对国际上迫切的节能减排压力,国内日益高涨的环保呼声,发展低碳经济作为重要的发展战略被提出并执行。山东省作为人口大省、能源大省和经济大省,研究山东省低碳经济对于推动节能减排政策实施、降低碳排放量有重要意义。 首先利用清单法对山东省1995-2013年的碳排放量进行了测算,尝试验证环境Kuznets曲线在山东省是否成立。通过对碳排放量和收入水平进行多项式拟合发现,碳排放变化曲线呈现“倒N型 ...
石钟山
core  

Resource Substitution: Local Governments' Issue Attention and Policy Reinvention

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Research on policy reinvention, where a government modifies rather than replicates policy innovations introduced by other governments, has progressed significantly, but how it is influenced by the government's issue attention has not been thoroughly examined.
Yingxin Zhang, Yixue Yao, Kaifeng Yang
wiley   +1 more source

Design and Implementation of Wind Power Production Real-time Supervisory Information System [PDF]

open access: yes, 2015
本文阐述了SIS的基本概念,分析SIS在电力企业信息化中的地位及国内外 的研究动态,着重研究SIS在风力发电企业中的应用,同时结合目前风力发电生 产信息的特点和需求,设计解决方案,并加以实现为其构建实时信息监测系统。 论文介绍了跨浏览器、跨系统的多媒体JAVA技术、Delphi技术、数据可视 化、网络拓扑设计等关键技术。重点讨论了SIS总体设计方案,包括系统设计的 原则,系统设计的总体要求、系统功能的实现、系统软件架构和网络结构等。系 统实现了实时数据的深层次加工和提炼,为决策分析提供辅助信息 ...
朱文杰
core  

Designing Integrated Policies for the Twin Transition: Challenges and Tradeoffs

open access: yesPolicy Studies Journal, EarlyView.
ABSTRACT Democratic governance faces the intertwined imperatives of managing the transformative risks and opportunities of digitalization, particularly stemming from artificial intelligence (AI), while achieving environmental sustainability within planetary boundaries.
Martino Maggetti
wiley   +1 more source

考虑暂态过电压抑制的新能源送出型电网无功优化方法

open access: yesDianci bileiqi, 2023
针对新能源送出型电网在暂态故障下容易产生过电压问题,提出考虑暂态过电压抑制的新能源送出型电网无功优化方法。首先,分析了新能源送出型电网等值电路的弱送端电网在直流闭锁故障下的暂态过电压机理,分析了过电压抑制策略;然后,为实现暂态能量在新能源集群和无功调节设备之间的有效分配,以新能源集群和无功调节设备作为决策变量,以新能源送出型电网无功裕度作为目标函数,建立考虑暂态过电压抑制的新能源送出型电网无功优化模型,并采用约束自适应粒子群算法对优化模型进行求解 ...
李文竹, 寇汉鹏
doaj  

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