在未来新型电力系统中,虚拟电厂(virtual power plant,VPP)内部多主体的可信交易和信息安全将更加复杂和具有挑战性。而区块链技术的信息安全、分布决策、智能合约及防篡改等特征,为VPP多元主体可信交易提供新思路。文中聚焦VPP内部多...在未来新型电力系统中,虚拟电厂(virtual power plant,VPP)内部多主体的可信交易和信息安全将更加复杂和具有挑战性。而区块链技术的信息安全、分布决策、智能合约及防篡改等特征,为VPP多元主体可信交易提供新思路。文中聚焦VPP内部多聚合商形成的利益最大化及可信交易匹配效率问题,首先,依据交易主体需求差异,建立区块链技术与多智能体系统融合的一主多从分层互动控制架构;其次,设计一种面向多聚合商对等交易需求下的可信交易匹配机制,引入非合作博弈模型,保证了多聚合商主体的利益;然后,基于区块链的分布式粒子群优化算法提出了改进的委托权威证明机制(delegated proof-of-authority,DPoA)共识算法,提高交易的安全性;最后,通过算例分析验证文中所提策略的合理性和可行性,该策略能有效增强多主体交易的匹配效率和安全性。展开更多
This paper is concomitant with our comparative study analysis of the interests and power of the stake-holders involved in Community Forestry (CF) in six countries. The study hypothesises that, “governance processes a...This paper is concomitant with our comparative study analysis of the interests and power of the stake-holders involved in Community Forestry (CF) in six countries. The study hypothesises that, “governance processes and outcomes in CF depend mostly on interests of the powerful external stakeholders”. For this paper which is on CF in Cameroon, the study hypothesizes that, “Power is a hidden factor in Development cooperation”. Based on political theories, the paper uses the “actor-centered power” (ACP) concept of the Community Forestry Working Group (CFWG) in G?ttingen, Germany, the post-development theory and empirical findings, to back up the assertations made in the study through the analysis of thirteen different CFs in the South West region (SWR) of Cameroon. It analyzes the empirically applicable ACP concept, that consists of three elements: trust, incentives and coercion and at the same time connects these elements with the post-development theory. The elements were derived from the basic assumptions on power made by Max Weber in political sciences and Max Krott in forest policy. The study confirms the existence of powerful internal and external stakeholders that influence CF in Cameroon and aims to empower important but marginalised communities. It concludes that, CF as a development instrument to alleviate poverty and increase livelihood while sustainably managing the forest has actually not brought significant or meaningful development to the targeted sector of the展开更多
文摘在未来新型电力系统中,虚拟电厂(virtual power plant,VPP)内部多主体的可信交易和信息安全将更加复杂和具有挑战性。而区块链技术的信息安全、分布决策、智能合约及防篡改等特征,为VPP多元主体可信交易提供新思路。文中聚焦VPP内部多聚合商形成的利益最大化及可信交易匹配效率问题,首先,依据交易主体需求差异,建立区块链技术与多智能体系统融合的一主多从分层互动控制架构;其次,设计一种面向多聚合商对等交易需求下的可信交易匹配机制,引入非合作博弈模型,保证了多聚合商主体的利益;然后,基于区块链的分布式粒子群优化算法提出了改进的委托权威证明机制(delegated proof-of-authority,DPoA)共识算法,提高交易的安全性;最后,通过算例分析验证文中所提策略的合理性和可行性,该策略能有效增强多主体交易的匹配效率和安全性。
文摘This paper is concomitant with our comparative study analysis of the interests and power of the stake-holders involved in Community Forestry (CF) in six countries. The study hypothesises that, “governance processes and outcomes in CF depend mostly on interests of the powerful external stakeholders”. For this paper which is on CF in Cameroon, the study hypothesizes that, “Power is a hidden factor in Development cooperation”. Based on political theories, the paper uses the “actor-centered power” (ACP) concept of the Community Forestry Working Group (CFWG) in G?ttingen, Germany, the post-development theory and empirical findings, to back up the assertations made in the study through the analysis of thirteen different CFs in the South West region (SWR) of Cameroon. It analyzes the empirically applicable ACP concept, that consists of three elements: trust, incentives and coercion and at the same time connects these elements with the post-development theory. The elements were derived from the basic assumptions on power made by Max Weber in political sciences and Max Krott in forest policy. The study confirms the existence of powerful internal and external stakeholders that influence CF in Cameroon and aims to empower important but marginalised communities. It concludes that, CF as a development instrument to alleviate poverty and increase livelihood while sustainably managing the forest has actually not brought significant or meaningful development to the targeted sector of the
