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学者姓名：郑峰
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Abstract ：
A grid-forming converter (GFM) controls power output by adjusting the phase angle and amplitude of its output voltage, providing voltage and frequency support to the power system and effectively enhancing system stability. However, it has limitations in current control, influencing the current only indirectly through voltage regulation, which results in weaker control over current waveform quality. In the context of a large number of renewable energy generation units being connected to the grid, harmonics in the grid voltage can lead to excessively high harmonic content in the grid current, exceeding standard limits and causing oscillations. To solve this problem, this paper proposes a control strategy of harmonic voltage feedforward compensation to suppress grid current distortion. The proposed control strategy extracts harmonic voltages from the output port of the GFM converter through a harmonic extraction module, processes them via a feedforward factor, and introduces the resulting signals into the converter's control loop as feedforward compensation terms. This allows the converter's output voltage to compensate for the harmonic components in the grid, achieving the improvement of grid current and reducing the total harmonic distortion (THD) value. The effectiveness of the proposed control strategy is verified by simulation results.
Keyword ：
grid current quality grid current quality grid-forming converter grid-forming converter voltage feedforward voltage feedforward
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| GB/T 7714 | Liu, Baojin , Yu, Bing , Zheng, Feng . Grid Current Distortion Suppression Based on Harmonic Voltage Feedforward for Grid-Forming Inverters [J]. | ELECTRONICS , 2025 , 14 (5) . |
| MLA | Liu, Baojin 等. "Grid Current Distortion Suppression Based on Harmonic Voltage Feedforward for Grid-Forming Inverters" . | ELECTRONICS 14 . 5 (2025) . |
| APA | Liu, Baojin , Yu, Bing , Zheng, Feng . Grid Current Distortion Suppression Based on Harmonic Voltage Feedforward for Grid-Forming Inverters . | ELECTRONICS , 2025 , 14 (5) . |
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With the high proportion of renewable energy integrated into DC distribution networks, their low inertia and weak damping characteristics result in high peak fault currents and rapid rise rates, posing challenges to the breaking capacity and speed of existing DC circuit breakers. Therefore, this paper presents a DC fault current limiter which takes into account ultracapacitor fast-clamped saturated core voltage. The current limiter uses a supercapacitor to rapidly energize the saturated core in series with the main circuit. Upon fault detection, a single phase shift control is used to enable the supercapacitor to discharge quickly, generating a specific slope current in the saturated core to clamp its voltage, thereby effectively suppressing the fault current amplitude. In addition, a current differential criterion is used to distinguish transient and permanent faults. For transient faults, the system executes self-recovery without circuit breaker operation. For permanent faults, the clamping voltage of the saturated core is further increased to force the fault line current to zero, enabling the rapid operation of the DC circuit breaker to isolate the faulty section. Finally, a multi-terminal DC distribution network simulation system is established to verify the effectiveness of the proposed current limiter. The results show that the proposed current limiter can effectively suppress the fault current and eliminate the negative impact of faults on non-fault regions. © 2025 Power System Protection and Control Press. All rights reserved.
Keyword ：
Clamping devices Clamping devices DC distribution systems DC distribution systems Electric power system control Electric power system control Electric power system protection Electric power system protection Fault current limiters Fault current limiters Geophysical prospecting Geophysical prospecting Potash deposits Potash deposits Renewable energy Renewable energy
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| GB/T 7714 | Zheng, Feng , Huang, Wenfeng , Lin, Yanzhen et al. Transient characteristics of a DC fault current limiter considering supercapacitor fast-clamped saturated core voltage [J]. | Power System Protection and Control , 2025 , 53 (8) : 105-116 . |
| MLA | Zheng, Feng et al. "Transient characteristics of a DC fault current limiter considering supercapacitor fast-clamped saturated core voltage" . | Power System Protection and Control 53 . 8 (2025) : 105-116 . |
| APA | Zheng, Feng , Huang, Wenfeng , Lin, Yanzhen , Liang, Ning , Liu, Baojin . Transient characteristics of a DC fault current limiter considering supercapacitor fast-clamped saturated core voltage . | Power System Protection and Control , 2025 , 53 (8) , 105-116 . |
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为进一步提高电力电子型限流器的经济性与限流效果,提出一种计及多元因素的故障电流受控型限流器(FCCL)的优化配置方法.对FCCL的故障过程展开分析,推导出计及FCCL的线路故障电流与换流站极间电压表达式.将老化因数纳入改进型限流器寿命预测模型,相较传统模型寿命预测值减少30%以上,更加精确合理.提出自变量简化策略,解决了求解过程中不同类型限流元件成本与冲击电流限制效果不平衡的问题,简化了求解过程.以成本、冲击电流限制效果、限流器预测寿命为目标函数,通过改进型多目标灰狼优化算法求得Pareto最优解集,求解效率提升26%以上.在9节点直流系统中进行优化配置算例分析,结果表明所提方法具备较高的求解效率与准确率.
Keyword ：
优化配置 优化配置 改进型多目标灰狼优化算法 改进型多目标灰狼优化算法 故障冲击电流 故障冲击电流 电流受控型限流器 电流受控型限流器 直流配电网 直流配电网
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| GB/T 7714 | 郑峰 , 黄云聪 , 梁宁 et al. 计及多元因素的故障电流受控型限流器优化配置方法 [J]. | 电力自动化设备 , 2025 , 45 (5) : 168-176 . |
| MLA | 郑峰 et al. "计及多元因素的故障电流受控型限流器优化配置方法" . | 电力自动化设备 45 . 5 (2025) : 168-176 . |
| APA | 郑峰 , 黄云聪 , 梁宁 , 林燕贞 , 杨帆 , 刘宝谨 . 计及多元因素的故障电流受控型限流器优化配置方法 . | 电力自动化设备 , 2025 , 45 (5) , 168-176 . |
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Abstract ：
To further enhanoe the economio efficiency and current-limiting Performance of power-electronic-based current limiters, an optimized configuration method for fault current-controlled limiter(FCCL) considering multiple factors is proposed. The fault process of FCCL is analyzed,and expressions for the fault current in the line and the voltage between Converter Station poles, considering the FCCL,are derived. By incorpo-rating the aging factor into improved current limiter lifespan prediction model, the predicted lifespan is re-duced by over 30% compared to traditional models, making the estimation more accurate and reasonable. The simplification strategy for independent variables is introduced, addressing the imbalance between cost of different types of current-limiting elements and impulse current limitation Performance, which simplifies the solving process. Taking the cost, impulse current limitation Performance and current limiter predicted lifespan as the objective functions,the Pareto-optimal Solution set is obtained by the improved multi-objective grey wolf optimization algorithm, and the solving efficiency is improved by more than 26%. An optimization case study is conducted in a 9-node DC System, the results show that the proposed method provides high solving efficiency and accuracy. © 2025 Electric Power Automation Equipment Press. All rights reserved.
Keyword ：
Boolean functions Boolean functions DC distribution systems DC distribution systems Electric fault location Electric fault location Electric machine control Electric machine control Fault current limiters Fault current limiters Multiobjective optimization Multiobjective optimization Pareto principle Pareto principle Voltage regulators Voltage regulators
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| GB/T 7714 | Zheng, Fen , Huang, Yuncong , Liang, Ning et al. Optimized configuration method for fault current-controlled limiter considering multiple factors [J]. | Electric Power Automation Equipment , 2025 , 45 (5) : 168-176 . |
| MLA | Zheng, Fen et al. "Optimized configuration method for fault current-controlled limiter considering multiple factors" . | Electric Power Automation Equipment 45 . 5 (2025) : 168-176 . |
| APA | Zheng, Fen , Huang, Yuncong , Liang, Ning , Lin, Yanzhen , Yang, Fan , Liu, Baojin . Optimized configuration method for fault current-controlled limiter considering multiple factors . | Electric Power Automation Equipment , 2025 , 45 (5) , 168-176 . |
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Abstract ：
新能源高比例接入直流配电网,其低惯量、弱阻尼特性将导致故障电流峰值大、上升速率快,给现有直流断路器的开断容量、速度带来挑战.因此,提出一种计及超级电容快速钳位饱和铁芯电压的直流故障限流器.该限流器利用超级电容器对串联于主电路的饱和铁芯快速供能,在检测到故障后通过单移相控制使超级电容快速放电,在饱和铁芯上产生特定斜率电流以钳位饱和铁芯电压,进而有效抑制故障电流幅值.此外,根据电流微分判据识别瞬时性/永久性故障:瞬时性故障时,执行无断路器动作行为的系统自恢复;永久性故障时,进一步抬升饱和铁芯钳位电压使故障线路电流过零,直流断路器快速动作、隔离故障线路.最后,搭建多端直流配电网仿真系统验证所提限流器的有效性.结果表明所提限流器能够有效抑制故障电流,消除故障区域对非故障区域的负面影响.
Keyword ：
故障限流和隔离 故障限流和隔离 直流配电网 直流配电网 超级电容 超级电容 钳位电压 钳位电压 饱和铁芯 饱和铁芯
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| GB/T 7714 | 郑峰 , 黄雯锋 , 林燕贞 et al. 计及超级电容快速钳位饱和铁芯电压的直流故障限流器暂态特性研究 [J]. | 电力系统保护与控制 , 2025 , 53 (8) : 105-116 . |
| MLA | 郑峰 et al. "计及超级电容快速钳位饱和铁芯电压的直流故障限流器暂态特性研究" . | 电力系统保护与控制 53 . 8 (2025) : 105-116 . |
| APA | 郑峰 , 黄雯锋 , 林燕贞 , 梁宁 , 刘宝谨 . 计及超级电容快速钳位饱和铁芯电压的直流故障限流器暂态特性研究 . | 电力系统保护与控制 , 2025 , 53 (8) , 105-116 . |
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In order to realize the low-carbon emission of power system and boost the economic growth, a bi-level optimal dispatching strategy based on the demand response considering nodal carbon intensity is proposed, which uses the model of carbon intensity guided multivariate flexible load as basic. First, by using the principle of proportional sharing to track the carbon emission flow, a carbon emission flow model is built, and the carbon intensity variation law of each node is perceived from a spatiotemporal dimension. Then, the carbon flow analysis is incorporated into the load-side demand response mechanism, the nodal carbon intensity is used to establish the carbon emission model of demand response for load aggregators, and the dispatching differences of load aggregators under different carbon intensities are clarified to build a bi-level optimal dispatching model of power system based on demand response considering nodal carbon intensity. The upper-level of the model is the optimal economic dispatching of power grid operators, and the lower-level of the model is the demand response economic dispatching of load aggregators. Finally, the effectiveness of the proposed method is verified by a modified IEEE 30-bus system. © 2024 Automation of Electric Power Systems Press. All rights reserved.
Keyword ：
Carbon Carbon Economic analysis Economic analysis Electric load dispatching Electric load dispatching Electric power system economics Electric power system economics
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| GB/T 7714 | Liang, Ning , Fang, Qian , Xu, Huihui et al. Bi-level Optimal Dispatching of Power System Based on Demand Response Considering Nodal Carbon Intensity [J]. | Automation of Electric Power Systems , 2024 , 48 (9) : 44-53 . |
| MLA | Liang, Ning et al. "Bi-level Optimal Dispatching of Power System Based on Demand Response Considering Nodal Carbon Intensity" . | Automation of Electric Power Systems 48 . 9 (2024) : 44-53 . |
| APA | Liang, Ning , Fang, Qian , Xu, Huihui , Zheng, Feng , Miao, Meng . Bi-level Optimal Dispatching of Power System Based on Demand Response Considering Nodal Carbon Intensity . | Automation of Electric Power Systems , 2024 , 48 (9) , 44-53 . |
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In order to solve the problems of weak bidding ability and difficult market accommodation in high proportion wind power market，a bi-level Stackelberg game model of high proportion wind power coupled hydrogen energy storage system participating in spot market bidding is proposed. Firstly，the internal energy conversion relationship of the wind-hydrogen coupling system is studied，and the energy'time-space translation'mechanism of the wind-hydrogen coupling system is revealed. Considering the benefits of the wind-hydrogen coupling system and the cost of wind curtailment，the wind power bidding and hydrogen energy storage charging and discharging decision models are established. Secondly，taking into account the interests of wind- hydrogen coupling system and independent system operators，a market clearing model with thermal power units and wind-hydrogen coupling system as the main body is established based on Stackelberg game. Finally，aiming at the difficulty of solving the two-layer model，the KKT（Karush-Kuhu-Tucker）condition and strong duality theory are used to transform the bi-level model into a single-level mixed integer programming model which is easy to be solved. The simulation results show that the proposed strategy has played a positive role in the market consumption of high proportion of wind power. © 2024 Science Press. All rights reserved.
Keyword ：
Electric utilities Electric utilities Fossil fuel power plants Fossil fuel power plants Game theory Game theory Hydrogen storage Hydrogen storage Integer programming Integer programming Thermoelectric power plants Thermoelectric power plants Wind power Wind power
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| GB/T 7714 | Liang, Ning , Pan, Zhengnan , Xu, Huihui et al. BIDDING STRATEGY AND OPTIMAL DISPATCHING METHOD OF WIND-HYDROGEN COUPLING SYSTEM PARTICIPATING IN SPOT MARKET [J]. | Acta Energiae Solaris Sinica , 2024 , 45 (2) : 351-359 . |
| MLA | Liang, Ning et al. "BIDDING STRATEGY AND OPTIMAL DISPATCHING METHOD OF WIND-HYDROGEN COUPLING SYSTEM PARTICIPATING IN SPOT MARKET" . | Acta Energiae Solaris Sinica 45 . 2 (2024) : 351-359 . |
| APA | Liang, Ning , Pan, Zhengnan , Xu, Huihui , Zheng, Feng , He, Xiyu , Zhang, Jiangyun . BIDDING STRATEGY AND OPTIMAL DISPATCHING METHOD OF WIND-HYDROGEN COUPLING SYSTEM PARTICIPATING IN SPOT MARKET . | Acta Energiae Solaris Sinica , 2024 , 45 (2) , 351-359 . |
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Aiming at the problems of high peak value fault current, fast rising speed, and being unable to ensure the reliability of the power supply in the non-fault zone in a multi-terminal DC system, a new cascade flexible current limiter and mechanical DC circuit breaker for medium- and high-voltage distribution networks are proposed. Firstly, the flexible current limiter is triggered by differential under-voltage protection to achieve the effect of interpole voltage clamping, suppressing the fault current and improving the dynamic recovery characteristics of the DC system after fault clearing. Secondly, according to the breaking speed of the DC circuit breaker, the action time of the current limiter can be set flexibly. The directional pilot protection signal of the circuit breaker is used to ensure the continuous action of the current limiter at the converter station side in the fault zone, until the circuit breaker acts to isolate the fault. The protection strategy can also avoid the blocking of the converter station and reduce the requirements for the breaking speed and breaking capacity of the circuit breaker. Finally, a four-terminal medium voltage distribution network model is built in MATLAB/SIMULINK, and the effect of the current limiter and the feasibility of the proposed protection strategy are verified by simulation.
Keyword ：
DC circuit breaker DC circuit breaker distribution network distribution network fault isolation strategy fault isolation strategy flexible current limiter flexible current limiter multi-terminal DC system multi-terminal DC system
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| GB/T 7714 | Cao, Langheng , Lv, Jiawen , Chen, Jing et al. Protection and Fault Isolation Scheme for DC Distribution Network Based on Active Current-Limiting Control [J]. | SYMMETRY-BASEL , 2024 , 16 (10) . |
| MLA | Cao, Langheng et al. "Protection and Fault Isolation Scheme for DC Distribution Network Based on Active Current-Limiting Control" . | SYMMETRY-BASEL 16 . 10 (2024) . |
| APA | Cao, Langheng , Lv, Jiawen , Chen, Jing , Zheng, Feng , Liang, Ning . Protection and Fault Isolation Scheme for DC Distribution Network Based on Active Current-Limiting Control . | SYMMETRY-BASEL , 2024 , 16 (10) . |
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In order to solve the problem of insufficient economy and practicability of traditional flexible current limiting device in DC grid，a modular current limiting inductance structure and input scheme are proposed in this study as a novel form of DC flexible current limiting device. A corresponding control design strategy is suggested based on this structure. The proposed structure enhances the fault tolerance rate of the flexible current limiting device，improves its economy，and increases the speed and efficacy of fault current suppression. It achieves quick isolation of permanent faults in the DC line and enables self-healing of transient faults without the need for circuit breaker activation. To further confirm the efficacy of the proposed device，a software platform is used to build a multi-terminal flexible DC simulation system. This system investigates both permanent and transient faults in the DC line. © 2024 Science Press. All rights reserved.
Keyword ：
Electric circuit breakers Electric circuit breakers Electric power system control Electric power system control Electric power system protection Electric power system protection Electric power transmission networks Electric power transmission networks Transient analysis Transient analysis
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| GB/T 7714 | Zheng, Feng , Wang, Weidong , Lin, Yanzhen et al. ANALYSIS AND RESEARCH ON FAULT TRANSIENT CHARACTERISTICS OF DC SYSTEM CONSIDERING NEW FLEXIBLE CURRENT LIMITER [J]. | Acta Energiae Solaris Sinica , 2024 , 45 (10) : 199-210 . |
| MLA | Zheng, Feng et al. "ANALYSIS AND RESEARCH ON FAULT TRANSIENT CHARACTERISTICS OF DC SYSTEM CONSIDERING NEW FLEXIBLE CURRENT LIMITER" . | Acta Energiae Solaris Sinica 45 . 10 (2024) : 199-210 . |
| APA | Zheng, Feng , Wang, Weidong , Lin, Yanzhen , Sun, Yubo , Tu, Chengqian , Liang, Ning . ANALYSIS AND RESEARCH ON FAULT TRANSIENT CHARACTERISTICS OF DC SYSTEM CONSIDERING NEW FLEXIBLE CURRENT LIMITER . | Acta Energiae Solaris Sinica , 2024 , 45 (10) , 199-210 . |
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In order to suppress microgrid resonance and bus voltage fluctuation and further improve system stability，a novel resonance suppression strategy based on fully reduced order hybrid control algorithm is proposed. The output voltage of LRC is controlled，and the current prediction model is introduced into the inner loop to improve the dynamic response speed of the system and eliminate the PWM modulator and parameter setting，so as to realize the unit of the inner loop of current. The inverse model of the controlled object is constructed in the outer loop to realize the unitization of the voltage outer loop under the control of two-degree-of-freedom. The bus voltage can completely follow the reference voltage and restrain the resonance peak in the voltage transfer function and the bus voltage fluctuation. Finally，the proposed fully reduced order hybrid control algorithm is simulated and verified on Matlab∕Simulink platform. The results show that the proposed control strategy can effectively suppress the DC microgrid resonance and bus voltage fluctuation，and improve the dynamic characteristics and anti-interference ability of the microgrid. © 2024 Science Press. All rights reserved.
Keyword ：
Circuit resonance Circuit resonance Inverse problems Inverse problems Microgrids Microgrids Predictive control systems Predictive control systems Pulse width modulation Pulse width modulation
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| GB/T 7714 | Zheng, Feng , Wu, Xudong , Zheng, Zonghua et al. RESONANCE SUPPRESSION STRATEGY FOR DC MICROGRIDS CONSIDERING STEP-DOWN TYPE CONTROL ALGORITHMS [J]. | Acta Energiae Solaris Sinica , 2024 , 45 (11) : 61-72 . |
| MLA | Zheng, Feng et al. "RESONANCE SUPPRESSION STRATEGY FOR DC MICROGRIDS CONSIDERING STEP-DOWN TYPE CONTROL ALGORITHMS" . | Acta Energiae Solaris Sinica 45 . 11 (2024) : 61-72 . |
| APA | Zheng, Feng , Wu, Xudong , Zheng, Zonghua , Liang, Ning . RESONANCE SUPPRESSION STRATEGY FOR DC MICROGRIDS CONSIDERING STEP-DOWN TYPE CONTROL ALGORITHMS . | Acta Energiae Solaris Sinica , 2024 , 45 (11) , 61-72 . |
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