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亚洲首个柔直海上风电项目累计发电量超100亿千瓦时_我的网站

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    China US Photo:VCGAmerican scientists have voiced opposition to a proposed rule which seeks to ban federal funding for US science collaboration with China, saying that it would instead hurt US interest, the Washington Post reported on Tuesday. Chinese experts also warned that the slew of US restrictions on China-US scientific cooperation is unlikely to deal a fatal blow to China's scientific development, but could instead backfire on the US.
The proposed Office of Management and Budget (OMB) rule, set to take effect in December, would mark one of the biggest overhauls of US science funding in decades, giving political appointees greater authority over grant awards previously guided by scientific peer review and requiring that they "advance the President's policy priorities," according to the Washington Post. 
It would also effectively expand the 2011 Wolf Amendment, which bars scientists from using NASA funding for bilateral collaborations with China, to all federal agencies and scientists receiving federal funds, marking the largest break in US-China scientific engagement in decades, the US media outlet reported.
So far, the proposed rule has garnered nearly half a million public comments, many from scientists and leading US science bodies. A Washington Post analysis of 50,000 of those comments found that around 88 percent were negative.
The rule, initially set to take effect in October, was pushed back to December after a bipartisan stopgap funding bill temporarily halted its adoption. Unlike the Wolf Amendment, the rule does not require congressional approval to take effect.
"I do think there are still members of Congress who think we have a monopoly on knowledge. They think we're still in the Cold War Soviet era ... where we were ahead in most areas of science and technology. That is not the case with China. We are no longer the leader in many areas of science," said Tobin Smith, senior vice president for government relations and public policy at the Association for American Universities, which advocates on behalf of leading US research universities, per the Washington Post.
Scientists warn that the rule risks subjecting long-term scientific research to four-year political cycles. "We will not succeed if with every new administration we are ping-ponging back and forth about priorities," the American Association for the Advancement of Science said in a blistering comment, urging the administration to withdraw the rule. "Fast-tracking such profound changes ... hands an easy victory to nations like China," it said, the Washington Post reported.
This reflects a fundamental divide between the US government and the scientific community over how science should develop, Wang Yiwei, a professor at Renmin University of China's School of International Studies, told the Global Times. He noted that politicians tend to believe that suppressing China as a competitor would allow the US to preserve its market dominance and technological edge. 
Scientists, however, tend to follow a different logic, as scientific progress depends on openness, exchanges and collaboration. If science and technology are driven solely by competition and private capital, with the ultimate goal of maintaining technological monopolies, this could create greater risks and ultimately undermine US interests as well, Wang said. 
The proposed rule change is the latest salvo in a broader battle in Washington over how to respond to China's rise as a scientific superpower. In July, the US National Science Foundation (NSF) also moved to ban collaborations between scientist it funds and many Chinese research institutions and their employees, according to Science magazine. 
Liu Shaoshan, director of the Center for Embodied AI at the Shenzhen Institute of Artificial Intelligence and Robotics for Society and a former US-based researcher, told the Global Times in a previous interview that the NSF's new proposed rules created a "talent wall," arguing that restrictions based on nationality, institutional affiliation, and research partnerships could reduce the global talent pool available to the US, weaken its ability to attract leading scientists, and slow scientific innovation. 
Liu also said scientific advancement relies not only on discovery but also on the exchange, validation, and dissemination of knowledge.
Wang also said China has built significant strengths through its vast pool of scientists and engineers, complete industrial chains and massive application scenarios, while increasingly moving from application-oriented innovation toward original research. Against this backdrop, US technological blockades and restrictions on cooperation are unlikely to halt China's progress, but could instead isolate American scientists from China's latest research and collaboration opportunities. Such an approach could also prevent the two countries from leveraging their respective strengths and ultimately undermine US competitiveness, Wang said.
。    　　记者从三峡集团获悉，8月11日，亚洲首个采用柔性直流输电技术送出的海上风电项目——三峡集团江苏如东800兆瓦海上风电项目（以下简称“江苏如东海上风电项目”）累计输送电量突破100亿千瓦时，为我国大容量、远距离海上风电柔性直流输电技术的规模化应用提供了实践验证。　　江苏如东海上风电项目位于江苏省南通市如东县黄沙洋海域，是当期世界上容量最大、电压等级最高的海上风电柔性直流输电工程。

B | 项目自2021年全容量并网投运以来，已安全稳定运行超过1600天，设备可利用率达到99.5%。项目累计发出的100亿千瓦时清洁电能，可满足约400万户家庭一年的生活用电需求，相当于节约标准煤300万吨、减少二氧化碳排放740万吨。　　深远海风电开发中，受距离和容量限制，传统交流输电逐渐难以满足需求，柔性直流输电成为更优的技术选择。然而，作为全球首个±400千伏海上风电柔直送出工程，江苏如东海上风电项目在运营过程中缺少成熟经验借鉴。　　三峡集团江苏分公司南通公司副总经理王雪峰表示，面对远海海域高湿、高盐、台风频发的恶劣环境，以及柔直设备技术新、系统集成复杂、应急响应难度大等多重挑战，工程团队重点突破了±400千伏柔直系统稳定运行、长距离海缆监测维护、大负荷工况调控等难题，实现了远海柔直风电安全、稳定、高效运营。与传统交流输电方式相比，项目输电线损降低约1.2个百分点，累计节约输电成本超过7.35亿元。（记者何亮）。

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Published on:09:39:59