步进电压调节器（ Step Voltage Regulator ）是一种电力电子控制装置，其通过离散式调节机制实现输出电压的阶梯式调整。该设备能够 根据系统需求或负载变化，将输入电压转换为具有特定步进间隔的可调输出电压，从而提供精确的分档电压控制功能。它可广泛使用于 供电距离比较远、供电负荷大、电压波动大、电能质量达不到使用标准的供电线路。也可以用于电压质量不能满足生产需要的工、矿企 业。 0 1 步进电压调节器行业目前现状分析 全球配电网自动化需求提升 随着城镇化、电气化和可再生能源并网的发展，全球各地电网面临电压波动和线路负载变化问题。步进电压调节器作为一种精密控制电 压的设备，广泛用于配电网中压和低压端，保障供电质量与电网稳定性。 中国市场潜力增长中 中国城乡电网改造、"双碳"目标与农村电气化为SVR产品应用提供广阔空间。尤其在中西部地区、风电并网区、以及用户终端电压稳定 性要求高的场合，逐步在采用 SVR 或其国产替代方案。 智能化与数字控制器普及 传统机械式控制正被带通信功能的数字控制器替代，如 Beckwith、Schweitzer、Howard 自研 UVR-1 控制器等，支持远程监测、自动换 ...

Core Viewpoint - The article highlights the contrast between the recent large-scale power outage in Spain and Portugal and the reliability of China's power grid, emphasizing the advanced technology and infrastructure in China that allows for rapid recovery from outages [1][3][4]. Group 1: European Power Outage - On April 28, Spain and Portugal experienced a massive power outage affecting over 50 million people, with Spain losing 60% of its power supply within 5 seconds [3][4]. - The outage lasted up to 20 hours in some areas, disrupting flights, train services, and communication systems, marking it as one of the largest outages in European history [3][4]. - The causes of the outage were attributed to the isolated nature of the Spanish and Portuguese power grids and a lack of effective renewable energy management technologies [3][4]. Group 2: China's Power Grid Reliability - China's power grid is interconnected nationwide, allowing for coordinated responses to local outages, which contrasts with the isolated grids in Spain and Portugal [4][6]. - The country has invested significantly in modernizing its power infrastructure, resulting in advanced technologies that enable rapid recovery from outages, such as the "FA" system that allows for power restoration in as little as 0.13 seconds [6][8]. - The integration of artificial intelligence in fault detection and recovery processes has improved efficiency and reduced human error in power management [8][9]. Group 3: Technological Advancements - The "FA" system, which stands for feeder automation, has been implemented in Ningbo, allowing for automatic fault isolation and restoration, significantly reducing outage times from hours to seconds [7][8]. - Continuous investment in technology and infrastructure has strengthened China's power grid, enabling it to handle a growing share of renewable energy sources effectively [9][13]. - The advancements in power grid technology are seen as crucial for maintaining stability and reliability, especially as the share of renewable energy increases [13].

Core Viewpoint - The recent large-scale power outage in Spain and Portugal highlights the importance of reliable power supply systems, contrasting with China's advanced and interconnected power grid capabilities [3][5][15]. Group 1: Power Outage in Europe - On April 28, Spain and Portugal experienced a massive power outage affecting over 50 million people, with some areas experiencing outages for up to 20 hours [3][5]. - The outage was attributed to the isolated nature of the Spanish and Portuguese power grids, which lack strong interconnections with other European countries [3][5]. - High reliance on renewable energy sources, such as solar (53%) and wind (11%), without adequate storage solutions made the grid vulnerable to extreme weather conditions [3][5]. Group 2: China's Power Grid Reliability - China's power grid is described as reliable and interconnected, allowing for coordinated national responses to local outages [5][7]. - The country has invested significantly in modernizing its power infrastructure, resulting in advanced technologies that enhance grid stability and reduce outage durations [11][15]. - The implementation of self-healing technologies has drastically reduced power restoration times from hours to milliseconds, exemplified by a recent incident where power was restored in just 0.13 seconds [7][8][11]. Group 3: Technological Advancements - The development of automated fault isolation systems has improved the efficiency of power restoration, with success rates increasing from 77.32% to 91.41% [7][8]. - The use of artificial intelligence for fault detection and isolation is expected to further enhance the automation of the power grid, minimizing human error [11][15]. - Continuous investment in technology and infrastructure has positioned China's power grid to handle the complexities introduced by distributed renewable energy sources [15]. Group 4: Personal Story of Zhang Jiming - Zhang Jiming, a power worker recognized for his contributions, has a background of overcoming personal challenges, which has shaped his dedication to his work [13][15]. - His journey from a technician to a leading expert in power grid automation reflects the importance of continuous learning and adaptation in the rapidly evolving energy sector [15]. - Despite newfound fame, Zhang remains committed to his responsibilities, emphasizing the critical role of power workers in ensuring reliable electricity supply for the public [15].