陕西合创时代构网型超级电容模组赋能静止同步调相机技术落地

当前我国新型电力系统建设持续提速，风电、光伏等新能源大规模并网，电网 “双高” 特征日益凸显。新能源场站转动惯量缺失、系统短路容量不足，故障工况下低电压与过电压问题交织，传统跟网型SVG、SVC设备无法提供惯量与阻尼支撑，电压快速扰动时易出现无功反调，甚至诱发宽频振荡，直接制约新能源消纳能力提升。依据《电力系统安全稳定导则》《电力系统安全稳定计算规范》等相关要求，高占比新能源区域需要配置具备惯量支撑、短路容量提升能力的新型稳定控制装备，保障场站短路比指标达标。传统旋转式同步调相机虽可满足电网技术指标，但投资规模大、运维复杂，不利于大规模推广应用。

针对行业痛点，合创时代聚焦构网型电力电子装备核心储能单元，自主研发构网型超级电容模组，为静止同步调相机（构网型SVG + 超级电容）提供关键短时功率‑能量支撑单元，推动新型调相装备技术迭代，为弱送端新能源基地、电网侧变电站、源网荷储一体化场景提供全新技术路径。

该系列构网型超级电容模组充分发挥超级电容功率密度高、百万次循环寿命、宽温域运行、安全免维护的产品特性，采用分散式直流配置方案，适配级联H 桥拓扑架构静止同步调相机，实现无功补偿与有功支撑解耦控制。依托超容模组短时能量吞吐能力，整套装备可实现毫秒级响应，具备同步电压支撑、短时惯量支撑、短路电流提升、宽频振荡抑制、一次调频调压等完整能力；设备不依赖锁相环，适配极弱电网工况，惯量、阻尼等控制参数可动态灵活整定，可输出数倍额定短时电流，有效抬升新能源场站短路比，抑制暂态过电压，解决传统SVG无功反调的行业顽疾，同时大幅降低全周期造价与运维压力。

相较于传统旋转分布式调相机，静止同步调相机具备主动滤波、快速频率响应、一次调频、POD/SSR阻尼抑制等旋转调相机不具备的拓展能力；成套方案损耗更低、交货周期短，支持户内、集装箱户外多种布置形式，适配多元化工程建设条件。

在技术指标层面，配套超级电容单元配置三级架构管理系统，可实现单体、模组、簇层级电压、温度实时监测，完成模组均衡控制、故障诊断与SOC 测算；配置直流断路器、熔断器实现短路、大电流放电保护，保障储能单元运行安全。

应用场景上，合创时代构网型超级电容模组可广泛应用于新能源风电光伏汇集站、高比例新能源弱送端基地、电网侧变电站、源网荷储一体化项目、构网型示范工程等场景。面对新能源大规模送出带来的惯量缺失、短路比不足、暂态电压失稳等现实工程难题，通过为静止同步调相机提供高性能储能内核，帮助场站满足涉网安全导则，提升新能源消纳上限，抑制系统宽频振荡，强化电压‑频率动态支撑能力。

行业正在从传统跟网型装备向构网型电压源装备转型，超级电容作为短时功率储能载体，是静止同步调相机实现惯量模拟、有功短时支撑的核心硬件。陕西合创时代科技持续深耕功率型超级电容与构网型电力装备技术，坚持以“绿色能源安全应用守护者” 为发展定位，聚焦新型电力系统下电网稳定支撑赛道，持续打磨构网型超级电容核心模组产品，协同产业链伙伴共同推进静止同步调相机技术规模化落地，助力我国能源转型与新型电力系统安全稳定建设。

Overcoming Stability Challenges of High-Proportion New Energy Grid Integration | Shaanxi Hechunk Era Technology Co., Ltd’s Grid-Forming Supercapacitor Modules Empower the Implementation of Static Synchronous Condenser Technology

The construction of China’s new power system continues to accelerate. The large-scale grid integration of wind power, photovoltaic power, and other new energy sources is making power grids increasingly characterized by a “high proportion of new energy and a high proportion of power electronic equipment.” New energy power stations suffer from insufficient rotational inertia and inadequate system short-circuit capacity. Undervoltage and overvoltage problems frequently occur under fault conditions. Traditional grid-following SVG and SVC equipment fails to provide effective inertia and damping support and tends to generate reverse reactive power regulation during rapid voltage fluctuations, which may further induce wide-band oscillation and greatly restrict the improvement of new energy accommodation capacity.

In accordance with the Guidelines for Power System Security and Stability and the Code for Power System Security and Stability Calculation, new-energy regions with high renewable penetration are required to be equipped with new-type stability control devices capable of providing inertia support and improving short-circuit capacity, so as to ensure that the short-circuit ratio indicators of power stations meet the requirements. Although conventional rotary synchronous condensers can meet relevant grid technical standards, they require substantial investment and complex operation and maintenance, making large-scale promotion difficult.

To address these industry bottlenecks, Shaanxi Hechunk Era Technology Co., Ltd focuses on the core energy storage units of grid-forming power electronic equipment and independently develops grid-forming supercapacitor modules. Serving as key short-term power and energy support units for static synchronous condensers integrated with grid-forming SVG and supercapacitors, the products drive the technical iteration of new-type phase modulation equipment and provide a brand-new technical solution for weak-sending-end new energy bases, grid-side substations, and integrated source-grid-load-storage scenarios.

The grid-forming supercapacitor module series fully leverages the advantages of supercapacitors, including high power density, a cycle life of millions of cycles, wide temperature adaptability, and maintenance-free safe operation. Adopting a distributed DC configuration scheme and matching the cascaded H-bridge topology of static synchronous condensers, the equipment realizes decoupled control of reactive power compensation and active power support.

Relying on the short-term charging and discharging capability of supercapacitor modules, the complete equipment achieves millisecond-level response and integrates comprehensive functions, including synchronous voltage support, short-term inertia support, short-circuit capacity improvement, wide-band oscillation suppression, and primary frequency and voltage regulation. Operating independently of phase-locked loops, the device adapts to extremely weak grid operating conditions with dynamically adjustable inertia and damping parameters. It can output a transient current several times the rated value, effectively raise the short-circuit ratio of new energy stations, suppress transient overvoltage, and solve the long-standing industry problem of reverse reactive power regulation of traditional SVG, while significantly reducing full-life-cycle construction and operation costs.

Compared with traditional distributed rotary synchronous condensers, static synchronous condensers possess extended functions unavailable to rotary equipment, such as active filtering, rapid frequency response, primary frequency regulation, and POD and SSR damping suppression. The complete solution features lower operating losses and a shorter delivery cycle, and supports both indoor installation and outdoor containerized layout, adapting to diversified engineering construction requirements.

In terms of technical performance, the supporting supercapacitor units adopt a three-level management architecture, realizing real-time monitoring of voltage and temperature at the cell, module, and cluster levels, as well as module balancing control, fault diagnosis, and state of charge (SOC) estimation. Equipped with DC circuit breakers and fuses, the system provides reliable protection against short circuits and high-current discharge, ensuring safe and stable operation of energy storage units.

In terms of application scenarios, the grid-forming supercapacitor modules developed by Shaanxi Hechunk Era Technology Co., Ltd are widely applicable to wind and PV collection stations, weak-sending-end bases with a high proportion of new energy, grid-side substations, integrated source-grid-load-storage projects, and grid-forming demonstration projects.

In the face of practical engineering difficulties brought by large-scale new energy grid integration, such as insufficient system inertia, an insufficient short-circuit ratio, and transient voltage instability, the product acts as a high-performance energy storage core for static synchronous condensers. It helps new energy stations fully comply with grid-connection safety guidelines, raise the upper limit of new energy accommodation, suppress system wide-band oscillation, and strengthen the dynamic voltage and frequency support capabilities of power grids.

The power industry is undergoing a transformation from traditional grid-following equipment to grid-forming voltage-source equipment. As an excellent short-term power/energy storage carrier, supercapacitors serve as the core hardware for static synchronous condensers to realize inertia simulation and short-term active power support.

Committed to the positioning as “Guardian of Safe Application of Green Energy” Shaanxi Hechunk Era Technology Co., Ltd continuously focuses on the research and development of power-type supercapacitors and grid-forming power equipment technologies. Centering on the grid stability support sector of the new power system, the company keeps optimizing core grid-forming supercapacitor module products and cooperates with industry-chain partners to promote the large-scale application of static synchronous condenser technology, contributing to China’s energy transformation and the safe and stable construction of the new power system.