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Asynchronous Consensus Algorithm Integrating Dynamic Weight Sharding Strategy

Chinese Journal of Electronics 2025年第2期34卷 600-611页

作者： Xiong Ao Zhang Wang Song Yu Wang Dong Li Da Guo Qinglei Bai Desheng State Key Laboratory of Networking and Switching Technology Beijing University of Posts and Telecommunications Beijing 100876 China State Grid Blockchain Technology (Beijing) Co. Ltd Beijing 100032 China

blockchain technology has broad application prospects in many fields due to its unique characteristics such as decentralization, traceability, and tamper-proofing, and has become a research hotspot in recent years. As a key component of blockchain technology, the consensus algorithm is one of the important factors affecting blockchain performance. Many consensus algorithms currently used in consortium chains are based on timing assumptions and lack horizontal scalability. That is to say, these algorithms cannot reach an agreement in an asynchronous network where the receiving time of network packets is uncertain, and their efficiency decreases as the number of nodes increases, which hinders the large-scale application of the consortium chain. In order to solve the above problems, this paper proposes the dynamic sharding Dumbo (DS-Dumbo) algorithm, an asynchronous consensus algorithm that integrates dynamic sharding strategies, based on the currently excellent Dumbo Byzantine fault tolerance (DumboBFT) asynchronous consensus algorithm. The main work of this paper revolves around how to fragment and optimize the consensus process. This paper designs a node asynchronous sharding model based on multi-dimensional weights, so that the re-sharding work of each blockchain node can be executed concurrently with the asynchronous consensus algorithm, reducing the conflict between blockchain sharding and asynchronous consensus algorithms. We also designed an intelligent transaction placement strategy, which calculates the relevance score of each transaction for all shards to determine which shard the transaction is processed in order to reduce the number of complex cross-shard transactions. We optimized the execution process of the DumboBFT algorithm, converted its internal synchronous working mode to an asynchronous working mode, and reduced the consumption of consensus work to a certain extent. The experimental evaluation shows that the DS-Dumbo algorithm has higher throughpu

关键词： blockchain Sharding technology Asynchronous consensus

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An Adaptive state Supervising Method for Power Data blockchain Based on Relay Mechanism 22

An Adaptive State Supervising Method for Power Data Blockcha...

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4th International Conference on blockchain technology, ICBCT 2022

作者： Xue, Wenhao Yang, Cheng Wu, Zhuofan State Grid Blockchain Technology Laboratory State Grid Digital Technology Holding Co. LTD. China State Grid Blockchain Technology Co. Ltd. State Grid Xiongan Financial Technology Company China

ISBN: (纸本)9781450395762

With the continuous advancement of Power blockchain constructions, many domestic companies have established multiple blockchain applications such as Smart Contract, Smart Finance, Energy Cloud and so on. While blockchain is in the stage of developing, thus there exists a lot of problems on these established blockchain applications. Supervision on chain data is one of these problems and it is always difficult, in order to resolve this problem, we propose a supervising method based on relay mechanism to monitor the chain data adaptively and to detect and control the abnormal data timely. We generate the data according to the data structure of the power distribution automation system for anomaly detection. The experimental results show that the proposed supervision algorithm detects abnormal power data in time, and adaptively updates the algorithm parameters according to the changes of the data on the chain, ensuring the accuracy of the detection results, and can help the supervisory unit to supervise the data on chain. © 2022 ACM.

关键词： blockchain

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Design of a Trustworthy Monitoring Model for Carbon Emissions in Industrial Parks Considering Green Electricity Consumption 4

Design of a Trustworthy Monitoring Model for Carbon Emission...

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4th International Conference on Energy Engineering and Power Systems, EEPS 2024

作者： Feng, Jingli Jiang, Tingting Guo, Qinglei Bai, Deisheng Ma, Xiaoxiao Pan, Xiukui State Grid Digital Technology Holdings Co. Ltd. Beijing100053 China Co. Ltd. Beijing100053 China Blockchain Technology Laboratory State Grid Corporation of China Beijing100053 China

ISBN: (纸本)9798350366914

Under the goal of peaking carbon emissions and achieving carbon neutrality in China, reliable carbon emissions in industrial parks have become a key focus of monitoring and calculation. There are still doubts about the authenticity of uploaded information, cumbersome data accounting processes, and difficulties in storing and tracing data in current carbon emission monitoring. This article constructs a trustworthy blockchain-based monitoring model for park carbon emissions. The model considers the business characteristics of park carbon emissions, uses blockchain distributed ledger as the underlying architecture, designs a key data trustworthy storage mechanism, and realizes online verification, accounting, and warning of carbon emissions indicators considering user green electricity consumption through smart contracts. The model builds a blockchain-based trusted monitoring platform for carbon emissions through the linkage mechanism of underlying trusted technology, distributed storage technology, and smart contract optimization, achieving efficient, transparent, and traceable dynamic monitoring of carbon emission data. © 2024 IEEE.

关键词： Low emission

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Research on Trusted Data Acquisition Method of Distribution Internet of Things with on-chain and Off-chain Cooperation

Research on Trusted Data Acquisition Method of Distribution ...

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Clean Energy and Electric Power Engineering (ICCEPE), International Conference on

作者： Ke Yang Xiukui Pan Shuang Sun Weiyu Wang Yuxi Zhai Qinglei Guo State Grid Digital Technology Holdings Co. LTD. Beijing China State Grid Blockchain Application Technology Laboratory Beijing China State Grid Blockchain Technology (Beijing) Co. LTD. Beijing China

ISBN: (数字)9798350390315

ISBN: (纸本)9798350390322

With the proposal of carbon peak, carbon neutrality, and accelerating the construction of a new power system, new challenges are posed to the distribution of the Internet of Things (DIoT). However, the current DIoT perception still faces problems such as terminal and user counterfeiting, unclear data ownership, data tampering attacks, and incomplete data sharing mechanisms. Based on this, this paper proposes a trusted data acquisition system for power distribution of the Internet of Things with on-chain and off-chain cooperation. Firstly, a data acquisition architecture based on blockchain is constructed from the aspects of terminal authentication, trusted collection, and trusted storage. Secondly, a trusted authentication method for DIoT man-machine coordination and a source data authenticity verification method for blockchain storage are proposed to provide a solid guarantee for the reliability of source data. Finally, a verifiable on-chain and off-chain collaborative storage mechanism for DIoT data is constructed to achieve efficient retrieval and authenticity verification of query results. The system provides higher reliability and sharing ability for DIoT data management and has important reference value for improving the level of power data governance.

关键词： Soft sensors Data acquisition Authentication Collaboration Solids blockchains Power system reliability Data governance Internet of Things Reliability

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Design and Implementation of Electronic Data blockchain Judicial Deposit Platform for Power grid Gusiness 4

Design and Implementation of Electronic Data Blockchain Judi...

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4th International Academic Exchange Conference on Science and technology Innovation, IAECST 2022

作者： Li, Guomin Xuanline, Jiaxing Xue, Wenhao Jia, Fan Co Blockchain Technology Laboratory of State Grid Corporation of China Beijing China

ISBN: (纸本)9798350320008

In the process of power grid digital transformation, electronic data such as electronic contract, electronic signature and electronic bidding are widely used. The electronic data is easy to tamper and forge, which makes it difficult to form effective legal *** solve this problem, this paper proposes to use blockchain technology to build a judicial certificate storage platform for power grid business, and use blockchain identity certificate mode to realize business-based user authority management;The domestic password and smart contract technology are used to realize the encrypted transmission, complete preservation and trusted sharing of electronic data in power grid enterprises, judicial authentication centers and other institutions;Through the high-performance keyword matching algorithm, the rapid query and accurate evidence collection of electronic data are realized, which not only promotes the development of power grid digitalization, but also improves the legal quality and efficiency of electronic data depository. © 2022 IEEE.

关键词： Smart contract

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Research on the variation of dielectric properties of oil-paper insulation for power equipment over a wide temperature range

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High Voltage 2024年第3期9卷 648-658页

作者： Mingze Zhang Muhe Yu Wen Zhou Yilin Liang Shengjie Lei Yunbo Shi Limin Qu Key Laboratory of Engineering Dielectrics and Its Application Ministry of Education Harbin University of Science and TechnologyHarbinChina School of Measurement and Communication Engineering Harbin University of Science and TechnologyHarbinChina Electric Power Research Institute State Grid Heilongjiang Electric Power Company LimitedHarbinChina

The main part of oil-immersed power equipment is oil-paper *** lower ambient temperatures,transformer oil will become *** a result,compared to those at room temperature or operating temperature,the frequency domain dielectric properties of oil-paper insulation at low temperatures are drastically *** evaluating the insulation condition of electrical equipment,it is essential to accurately determine their dielectric *** paper described the FDS test,the DC conductivity test,and the transformer oil viscosity test,which was carried out in a laboratory environment for different ageing of oil-immersed pressboard and transformer oil at 233–373 *** ef-fects of temperature on the dielectric properties at the competing mechanisms of polarisation and conductivity loss were clarified based on variations of the FDS *** the viscosity change of ageing transformer oil at low temperatures,the Arrhenius and VFT viscosity equations were used to achieve a fitting calculation in the different temperature *** on the molecular/ion transition model in the force field and electric field,the characterisation relationships between the dynamic viscosity,DC conductivity,and test temperature of transformer oil were *** limita-tions of conventional transformer oil equivalent dielectric relaxation models over a wide temperature range were finally clarified by combining the test findings of the DC con-ductivity over a wide temperature range with observed and simulated *** paper provides an essential theoretical reference when using the FDS test to diagnose the insulation performance of oil-immersed power equipment in extremely cold regions.

关键词： insulation viscosity immersed

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Research on blockchain architecture for terminal side business applications of distributed iot

Research on blockchain architecture for terminal side busine...

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Energy, Power and grid (ICEPG), International Conference on

作者： Xiukui Pan Ke Yang Na Li Shangzhuo Zheng Qinglei Guo State Grid Blockchain Technology (Beijing) Co. Ltd Beijing China State Grid Digital Technology Holdings Co. Ltd Beijing China Blockchain Application Technology Laboratory of State Grid Corporation of China Beijing China

ISBN: (数字)9798350377798

ISBN: (纸本)9798350377804

As the most important energy exchange hub of the new power system, the distribution network is of great significance for supporting clean energy production and electricity substitution for energy consumption. The blockchain-based distribution network supports distributed power generation and has the function of good interaction with the main network and users, adapting to the construction and development of a strong intelligent distribution network. The focus of this article is on the authenticity and security requirements of data on the intelligent terminal side of the distributed Internet of Things system. A blockchain and chip software and hardware collaborative technology framework are designed for the terminal side business, and an embedded edge intelligent framework and efficient parallel blockchain hardware acceleration architecture are designed. Ultimately, high-performance, highly trusted, and highly secure underlying technology support is provided for blockchain end-side applications, creating a trustworthy software and hardware integrated environment, hence improving the operational efficiency of the underlying blockchain platform, reducing blockchain latency, and supporting adaptation to multiple types of blockchain basic service platforms.

关键词： Computer architecture Distribution networks Production Software systems blockchains Power systems Internet of Things Security Hardware acceleration Business

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Study on the Development Status and Prospect of blockchain technology in the Energy Field 6

Study on the Development Status and Prospect of Blockchain T...

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6th International Conference on Electronic Information technology and Computer Engineering, EITCE 2022

作者： Zhang, Xuesen Guo, Qinglei Pan, Xiukui Bai, Desheng Pan, Xiaoting Lv, Jiayu State Grid Digital Technology Holding Co. Ltd Blockchain Technology Laboratory of State Grid Corporation of China China

ISBN: (纸本)9781450397148

The initial exploration of the application of blockchain technology in the energy field has yielded many results. In the context of energy interconnection, information exchange, data sharing and China's "2030 carbon peak, 2060 carbon neutral" strategy, blockchain technology will play a greater role in the energy field, and the consensus mechanism is the energy block The key technology that the chain urgently needs to break through. First, this paper analyzes the opportunities and challenges faced by energy development, discusses the value and technical support of blockchain technology in the energy field, summarizes the current application status, and then proposes an on-chip consensus algorithm based on VRF, each shard can be processed in parallel On-chip transactions, run the consensus mechanism to verify and package these transactions, improve transaction execution efficiency, and verify the effectiveness and speed of the consensus mechanism proposed in this paper through example simulations. Finally, the application goals and several policy recommendations of energy blockchain are put forward, in order to provide reference for future energy planning. © 2022 Association for Computing Machinery.

关键词： blockchain

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Research on Evaluation Model of Microservice Transformation Based on Business Consistency

Research on Evaluation Model of Microservice Transformation ...

引用

Artificial Intelligence, Internet and Digital Economy (ICAID), International Conference on

作者： Na Li Yushi Liu Mingyang Lei Xiaoxiao Ma Qinglei Guo State Grid Digital Technology Holding Co. Ltd. Xicheng District Beijing China Blockchain Application Technology Laboratory of State Grid Corporation of China Beijing China State Grid Blockchain Technology (Beijing) Co. Ltd. Beijing China

ISBN: (数字)9798331510664

ISBN: (纸本)9798331510671

When enterprises transition to microservices architecture, ensuring business integrity and service interaction consistency is crucial. However, traditional approaches lack systematic evaluation of governance strategies and fault tolerance mechanisms. This paper proposes a business consistency-oriented evaluation framework integrating three core modules: business contract mapping, service stub validation, and environment simulation testing. By defining service interaction rules through YAML contracts, we implement automated traffic management testing using Istio. Network latency and service downtime are injected through Chaos Mesh to verify circuit breaking accuracy and recovery efficiency. Experimental results demonstrate that our framework effectively safeguards business process integrity, ensures service interaction accuracy, and significantly enhances fault recovery capabilities. This research provides quantifiable assessment tools and reproducible implementation schemes for microservice transitions.

关键词： Fault tolerance Accuracy Systematics System performance Fault tolerant systems Microservice architectures Internet Contracts Business Testing

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Study on thermal cycling ageing resistance of performances of polypropylene/elastomer/boron nitride nanocomposites for high voltage direct current cable insulation

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High Voltage 2024年第3期9卷 556-565页

作者： Jing Li Yu Gao Zheng Song Baixin Liu Chenyi Guo Yu Chen Junguo Gao Boxue Du School of Electrical and Information Engineering Tianjin UniversityTianjinChina State Grid Tianjin Chengxi Electric Power Supply Branch TianjinChina State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong UniversityXi'anChina Key Laboratory of Engineering Dielectrics and Its Application Ministry of EducationHarbin University of Science and TechnologyHarbinChina

The influences of thermal cycling ageing on structures and insulation performances of polypropylene(PP)/elastomer/boron nitride(BN)nanocomposites are *** Melt blending method was used to prepare the nanocomposites,in which propylene-based elastomer(PBE)or ethylene-octene copolymer elastomer(EOC)was contained for ***,the samples were treated using a thermal cycling process with a temperature range from-30 to 150℃,and the number of thermal cycles was set from 0 to *** electron microscope(SEM),Fourier transform infrared spectroscopy(FTIR),differential scanning calorimetry and X-ray diffraction measurements were taken to facilitate the comprehension of structural ***,measurements were taken to assess the trap distribution and direct current(DC)breakdown strength of the *** obtained results revealed that following thermal cycling ageing,the morphology and crystallinity of PP/PBE/BN remained almost *** contrast,PP/EOC/BN exhibited substantial microstructural damage accompanied by a significant reduction in *** the number of thermal cycles increased,the trap level and DC breakdown strength of PP/PBE/BN were maintained at high levels,while those of PP/EOC/BN initially remained stable but then experienced a sharp *** is sug-gested that the addition of BN nanoparticles enhances the thermal cycling ageing resis-tance of the PP/PBE blend,whereas it weakens this resistance of the PP/EOC blend.

关键词： cycling resistance thermal

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