The concept of new comprehensive sea power established in Japan shows that a marine development course is actively taken by Japanese government,for the purpose of realizing the country’s sustainable development.Howev...The concept of new comprehensive sea power established in Japan shows that a marine development course is actively taken by Japanese government,for the purpose of realizing the country’s sustainable development.However,Japan is actively developing its naval forces to fight for sea interests,so that an adverse effect has been played on the development of China.In the sea power dispute between China and Japan,the core interests of both countries are involved,so that the cold situation of the political,economic and cultural exchanges has been caused.In view of the sea power disputes between China and Japan,cooperation and negotiation should be promoted by China more commonly;a concept of sea power and a marine strategy conforming to the actual national conditions should be established;the mutually beneficial and win-win situation should be actively promoted with the neighboring countries;the studies of the international maritime law and the establishment of marine legal system should be strengthened.展开更多
This article is unabashed advocacy for China's sea power by one of China's leading national security experts closely tied to the People's Liberation Army.Sea power,argues the author,is vital to China's...This article is unabashed advocacy for China's sea power by one of China's leading national security experts closely tied to the People's Liberation Army.Sea power,argues the author,is vital to China's economic and political survival because (1)the Mahanian Sea Power theory still is applicable to China;(2)due to the existence of the United States,our world is still predominantly ruled by Hobbesian Law whereby the strong bully the weak;and (3)the First Sino-Japanese War (1894-1895) taught China painful lessons about the importance of Sea Power.The author unambiguously argues that China needs to drastically increase its naval budget,ought to give up the romantic notion that "international cooperation" will be reliably successful in keeping China's sea lines of communication (SLOCs) open,and,finally,should not fear provoking strong reaction to its naval build-up from the United States.展开更多
能源岛汇集外送被认为是未来海上风电开发的重要模式。目前,海缆长距离输电成本高、陆上接入点受限、故障修复时间长,而电转燃料通过船舶外送的模式又存在转换效率低、海上占地大等问题。为此,提出了基于电力储能船舶的海上能源岛电力...能源岛汇集外送被认为是未来海上风电开发的重要模式。目前,海缆长距离输电成本高、陆上接入点受限、故障修复时间长,而电转燃料通过船舶外送的模式又存在转换效率低、海上占地大等问题。为此,提出了基于电力储能船舶的海上能源岛电力外送技术。首先,设计了以功率变换为核心的电气化能源岛技术架构;进而提出了考虑风电消纳、供需平衡、灵活外送、航道运输的海上能源岛电力外送方案技术经济评价方法;最后,基于中国南海某岛及周边资源特性,剖析了不同传输距离下所提能源岛电力外送方案的可行性,同时给出了影响该方案技术经济性的主要因素。研究结果表明:船舶外送策略能源传输效率和平准化上岸电能成本对离岸距离和风电容量呈负相关,对单船储能容量呈正相关;电力储能船舶在应对150~200 km风电外送时,当传输能效标准为80%时,平准化上岸电能成本可低至0.46元/kWh,比高压交流(high voltage alternating current,HVAC)、高压直流(high voltage direct current,HVDC)和分频输电(fractional frequency transmission system,FFTS)3种海缆模式均具有更好的经济性。展开更多
文摘The concept of new comprehensive sea power established in Japan shows that a marine development course is actively taken by Japanese government,for the purpose of realizing the country’s sustainable development.However,Japan is actively developing its naval forces to fight for sea interests,so that an adverse effect has been played on the development of China.In the sea power dispute between China and Japan,the core interests of both countries are involved,so that the cold situation of the political,economic and cultural exchanges has been caused.In view of the sea power disputes between China and Japan,cooperation and negotiation should be promoted by China more commonly;a concept of sea power and a marine strategy conforming to the actual national conditions should be established;the mutually beneficial and win-win situation should be actively promoted with the neighboring countries;the studies of the international maritime law and the establishment of marine legal system should be strengthened.
文摘This article is unabashed advocacy for China's sea power by one of China's leading national security experts closely tied to the People's Liberation Army.Sea power,argues the author,is vital to China's economic and political survival because (1)the Mahanian Sea Power theory still is applicable to China;(2)due to the existence of the United States,our world is still predominantly ruled by Hobbesian Law whereby the strong bully the weak;and (3)the First Sino-Japanese War (1894-1895) taught China painful lessons about the importance of Sea Power.The author unambiguously argues that China needs to drastically increase its naval budget,ought to give up the romantic notion that "international cooperation" will be reliably successful in keeping China's sea lines of communication (SLOCs) open,and,finally,should not fear provoking strong reaction to its naval build-up from the United States.
文摘能源岛汇集外送被认为是未来海上风电开发的重要模式。目前,海缆长距离输电成本高、陆上接入点受限、故障修复时间长,而电转燃料通过船舶外送的模式又存在转换效率低、海上占地大等问题。为此,提出了基于电力储能船舶的海上能源岛电力外送技术。首先,设计了以功率变换为核心的电气化能源岛技术架构;进而提出了考虑风电消纳、供需平衡、灵活外送、航道运输的海上能源岛电力外送方案技术经济评价方法;最后,基于中国南海某岛及周边资源特性,剖析了不同传输距离下所提能源岛电力外送方案的可行性,同时给出了影响该方案技术经济性的主要因素。研究结果表明:船舶外送策略能源传输效率和平准化上岸电能成本对离岸距离和风电容量呈负相关,对单船储能容量呈正相关;电力储能船舶在应对150~200 km风电外送时,当传输能效标准为80%时,平准化上岸电能成本可低至0.46元/kWh,比高压交流(high voltage alternating current,HVAC)、高压直流(high voltage direct current,HVDC)和分频输电(fractional frequency transmission system,FFTS)3种海缆模式均具有更好的经济性。
